author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 03 May 2010 13:18:40 +0300 | |
changeset 4 | 90517678cc4f |
child 5 | 453da2cfceef |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the Qt3D module of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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|
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#include "camera.h" |
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#include <QtGui/qquaternion.h> |
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#include <QtCore/qmath.h> |
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|
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/*! |
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\class Camera |
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\brief The Camera class defines the projection to apply to simulate a camera's position, orientation, and optics. |
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\since 4.7 |
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\ingroup qt3d |
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\ingroup qt3d::viewing |
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\section1 Modelview and projection transformations |
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A Camera instance is applied to the scene in two phases: |
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modelview transformation and projection transformation. |
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During the modelview transformation, the eye(), center(), and |
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upVector() are used to generate a 4x4 transformation matrix that |
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reflects the viewer's current position and orientation. |
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During the projection transformation, the projectionType(), |
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nearPlane(), farPlane(), fieldOfView(), and viewSize() are used |
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to define a viewing volume as a 4x4 transformation matrix. |
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The modelview transformation matrix is returned by modelViewMatrix(). |
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The projection transformation matrix is returned by projectionMatrix(). |
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\section1 Positioning and orienting the view |
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The viewer position and orientation are defined by eye(), center(), |
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and upVector(). The location of the viewer in world co-ordinates is |
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given by eye(), the viewer is looking at the object of interest located |
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at center(), and the upVector() specifies the direction that should |
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be considered "up" with respect to the viewer. |
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The vector from the eye() to the center() is called the "view vector", |
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and the cross-product of the view vector and upVector() is called |
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the "side vector". The view vector specifies the direction the |
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viewer is looking, and the side vector points off to the right of |
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the viewer. |
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It is recommended that the view vector and upVector() be at right angles |
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to each other, but this is not required as long as the angle between |
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them is close to 90 degrees. |
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The most common use of view and up vectors that are not at right angles |
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is to simulate a human eye at a specific height above the ground looking |
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down at a lower object or up at a higher object. In this case, the |
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the view vector will not be true horizontal, but the upVector() indicating |
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the human's upright stance will be true vertical. |
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\section1 Zooming the camera image |
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There are two ways to zoom the image seen through the camera: either |
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the camera eye() position can be moved closer to the object of interest, |
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or the field of view of the camera lens can be changed to make it appear |
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as though the object is moving closer. |
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Changing the eye() position changes the lighting calculation in the |
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scene because the viewer is in a different position, changing the |
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angle of light reflection on the object's surface. |
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The setFieldOfView() function can be used to simulate the effect of a |
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camera lens. The smaller the fieldOfView(), the closer the object |
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will appear. The lighting calculation will be the same as for the |
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unzoomed scene. |
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108 |
|
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If fieldOfView() is zero, then a standard perspective frustum of |
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viewSize() is used to define the viewing volume. The viewSize() |
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can be adjusted with setViewSize() to zoom the view. A smaller |
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viewSize() will make the the object appear closer. |
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113 |
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The fieldOfView() or viewSize() is applied as part of the |
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projectionMatrix(). |
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116 |
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\section1 Rotating the viewer or object of interest |
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118 |
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119 |
Rotating a viewer in 3D space is a very delicate process. It is very |
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easy to construct the rotation incorrectly and end up in a "gimbal lock" |
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state where further rotations are impossible in certain directions. |
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122 |
|
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To help alleviate this problem, Camera uses a quaternion-based |
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approach to generate rotations. A quaternion is a compact representation |
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of a rotation in 3D space. Rotations can be combined through quaternion |
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multiplication. More information on quaternions can be found in the |
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documentation for QQuaternion. |
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128 |
|
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Before rotating the view, you should first decide the type |
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of rotation you want to perform: |
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131 |
|
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132 |
\list |
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\i Tilting or panning a fixed eye to reveal the scene in different |
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directions and orientations. This is equivalent to mounting a camera |
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135 |
on a fixed tripod and then adjusting the direction of view and |
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orientation with the tripod controls. |
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\i Rotating a moving viewer about the object of interest. This is |
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equivalent to moving the viewer around the object at a fixed distance, |
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but with the viewer always pointing at the object. |
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140 |
\endlist |
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141 |
|
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In the Camera class, the first type of rotation is performed with |
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rotateEye() and the second with rotateCenter(). Each of these functions |
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take a quaternion argument that defines the type of rotation to perform. |
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145 |
|
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The tilt(), pan(), and roll() functions return values that can help with |
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constructing the rotation quaternions to pass to rotateEye() and |
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rotateCenter(). Tilt and pan are also known as "pitch" and "yaw" in |
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149 |
flight dynamics. |
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150 |
|
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Three axes of rotation are used to compute the quaternions. The tilt() |
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quaternion is computed with respect to the side vector, the pan() |
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quaterion is computed with respect to the upVector(), and the roll() |
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quaternion is computed with respect to the view vector. |
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155 |
|
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The following example tilts the direction the eye() is pointing |
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by 5 degrees, and then pans by 45 degrees: |
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158 |
|
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159 |
\code |
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camera.rotateEye(camera.tilt(5)); |
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camera.rotateEye(camera.pan(45)); |
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162 |
\endcode |
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163 |
|
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The next example performs the two rotations in a single fluid step |
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(note that the rotation to be performed first is multiplied last): |
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166 |
|
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167 |
\code |
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camera.rotateEye(camera.pan(45) * camera.tilt(5)); |
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169 |
\endcode |
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170 |
|
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171 |
These two examples will not produce the same visual result, even though |
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172 |
it looks like they might. In the first example, the upVector() is tilted |
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before the pan() quaternion is computed. In the second example, the pan() |
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quaternion is computed using the original upVector(). |
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175 |
|
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This difference in behavior is useful in different situations. Some |
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applications may wish to perform all rotations relative to the original |
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viewer orientation, and other applications may wish to perform rotations |
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relative to the current viewer orientation. These application types |
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correspond to the second and first examples above. |
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181 |
|
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\section1 Moving the viewer or object of interest |
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183 |
|
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The simplest way to move the viewer or object of interest is to call |
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setEye() or setCenter() respectively and supply a new position in |
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world co-ordinates. However, this can lead to non-intuitive movements |
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if the viewer orientation is not aligned with the world co-ordinate axes. |
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188 |
|
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For example, subtracting 3 from the eye() x co-ordinate will appear to |
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190 |
move the eye left 3 units if the viewer orientation is aligned with the |
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world co-ordinate axes. But it will not appear to move the eye left 3 |
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units in any other orientation. |
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193 |
|
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The translation() function can be used to construct a translation |
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vector that is aligned with the viewer's current orientation. |
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Movement in the x direction will move along the side vector, movement in |
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the y direction will move along upVector(), and movement in the z |
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direction will move along the view vector. |
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199 |
|
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The translation() function is useful when implementing operations such |
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201 |
as "step left", "jump up", and so on where the movement should be |
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interpreted relative to the viewer's current orientation, not the |
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world co-ordinate axes, |
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204 |
|
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In other words, the following two lines of code are not equivalent |
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unless the view is oriented with the world co-ordinate axes: |
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207 |
|
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208 |
\code |
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camera.translateEye(camera.translation(x, y, z)); |
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210 |
|
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camera.translateEye(QVector3D(x, y, z)); |
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\endcode |
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213 |
|
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The following example translates the eye() position while |
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keeping the object of interest at the original center(): |
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216 |
|
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\code |
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camera.translateEye(camera.translation(x, y, z)); |
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\endcode |
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220 |
|
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The following example translates the object of interest at |
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center() while keeping the eye() position fixed: |
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223 |
|
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\code |
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camera.translateCenter(camera.translation(x, y, z)); |
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\endcode |
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227 |
|
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The following example translates both the eye() and the center() |
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by the same amount, which will maintain the original view vector. |
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230 |
|
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\code |
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QVector3D vector = camera.translation(x, y, z); |
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camera.translateEye(vector); |
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camera.translateCenter(vector); |
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\endcode |
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236 |
|
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It is important that the translation vector for center() be computed |
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before eye() is translated if both eye() and center() must move by the |
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same amount. The following code translates center() in the viewer |
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orientation after the eye() is translated: |
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241 |
|
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\code |
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camera.translateEye(camera.translation(x, y, z)); |
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camera.translateCenter(camera.translation(x, y, z)); |
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\endcode |
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246 |
|
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Translating both eye() and center() by the same amount can be used |
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to simulate sliding a viewer past a scene while always looking in the |
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same direction (for example, filming a scene from a moving vehicle). |
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An alternative is to fix the viewer and move the scene itself: |
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the negation of the translation() vector can be applied to the |
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scene's modelview transformation. |
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253 |
|
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\section1 Motion tracking |
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255 |
|
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Viewing of 3D scenes can be enhanced if there is some way to track |
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the motion of the viewer or the orientation of the display device. |
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258 |
|
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Applications can use setMotionAdjustment() to alter the position |
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260 |
of the camera to account for the viewer's motion. This indicates |
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the viewer's position relative to the center of the screen. |
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The motionAdjustment() vector is used to determine by how much |
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the camera position should be adjusted. The distance of the viewer |
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from the screen is ignored. |
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265 |
|
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266 |
On handheld devices that use accelerometers to determine the |
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orientation of the device, the down vector due to gravity |
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can be adjusted to serve as a motion tracking vector. |
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269 |
|
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The output of motion tracking hardware can be very noisy, |
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with minor fluctuations due to viewer twitch movements or |
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environmental factors. The application is responsible for |
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273 |
cleaning up the signal and removing these fluctuations before |
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setMotionAdjustment() is called. |
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275 |
*/ |
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276 |
|
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class CameraPrivate |
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278 |
{ |
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279 |
public: |
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CameraPrivate(); |
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281 |
|
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Camera::ProjectionType projectionType; |
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qreal fieldOfView; |
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qreal nearPlane; |
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qreal farPlane; |
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QSizeF viewSize; |
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QSizeF minViewSize; |
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int screenRotation; |
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QVector3D eye; |
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QVector3D upVector; |
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QVector3D center; |
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QVector3D viewVector; |
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qreal eyeSeparation; |
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QVector3D motionAdjustment; |
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QQuaternion motionQuaternion; |
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bool adjustForAspectRatio; |
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}; |
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298 |
|
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CameraPrivate::CameraPrivate() |
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: projectionType(Camera::Perspective), |
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fieldOfView(0.0f), |
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nearPlane(5.0f), |
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farPlane(1000.0f), |
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viewSize(2.0f, 2.0f), |
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minViewSize(0.0001f, 0.0001f), |
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screenRotation(0), |
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eye(0.0f, 0.0f, 10.0f), |
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upVector(0.0f, 1.0f, 0.0f), |
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center(0.0f, 0.0f, 0.0f), |
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viewVector(0.0f, 0.0f, -10.0f), |
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eyeSeparation(0.0f), |
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motionAdjustment(0.0f, 0.0f, 1.0f), |
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adjustForAspectRatio(true) |
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{ |
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} |
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|
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/*! |
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Constructs a Camera with the default properties and |
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attaches it to \a parent. |
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*/ |
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Camera::Camera(QObject *parent) |
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: QObject(parent), d_ptr(new CameraPrivate) |
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{ |
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} |
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|
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/*! |
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Destroys this Camera object. |
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*/ |
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Camera::~Camera() |
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{ |
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delete d_ptr; |
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} |
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|
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/*! |
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\enum Camera::ProjectionType |
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This enum defines the type of view projection to use for a Camera. |
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|
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\value Perspective Use a perspective view. |
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\value Orthographic Use an ortographic view. |
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*/ |
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|
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/*! |
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\property Camera::projectionType |
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\brief the projection type for this camera. The default is Perspective. |
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*/ |
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Camera::ProjectionType Camera::projectionType() const |
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{ |
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Q_D(const Camera); |
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return d->projectionType; |
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} |
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|
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void Camera::setProjectionType(Camera::ProjectionType value) |
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{ |
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Q_D(Camera); |
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if (d->projectionType != value) { |
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d->projectionType = value; |
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emit projectionChanged(); |
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} |
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} |
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360 |
|
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/*! |
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\property Camera::fieldOfView |
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\brief the field of view in degrees for a perspective projection. |
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|
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The default value is zero, which indicates a standard perspective |
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frustum view volume of viewSize() in size. If the value is not |
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zero, then viewSize() is ignored. |
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|
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This value is ignored if projectionType() is Orthographic. |
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|
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\sa viewSize() |
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*/ |
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qreal Camera::fieldOfView() const |
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{ |
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Q_D(const Camera); |
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return d->fieldOfView; |
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} |
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|
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void Camera::setFieldOfView(qreal angle) |
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{ |
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Q_D(Camera); |
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if (d->fieldOfView != angle) { |
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d->fieldOfView = angle; |
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emit projectionChanged(); |
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} |
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} |
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|
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/*! |
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\property Camera::nearPlane |
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\brief the distance from the eye to the near clipping plane. |
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The default value is 5. |
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|
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\sa farPlane() |
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*/ |
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qreal Camera::nearPlane() const |
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{ |
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Q_D(const Camera); |
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return d->nearPlane; |
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} |
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400 |
|
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void Camera::setNearPlane(qreal value) |
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{ |
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Q_D(Camera); |
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if (d->nearPlane != value) { |
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d->nearPlane = value; |
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emit projectionChanged(); |
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} |
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} |
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409 |
|
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/*! |
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\property Camera::farPlane |
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\brief the distance from the eye to the far clipping plane. |
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The default value is 1000. |
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|
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\sa nearPlane() |
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*/ |
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qreal Camera::farPlane() const |
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{ |
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Q_D(const Camera); |
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return d->farPlane; |
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Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
void Camera::setFarPlane(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
if (d->farPlane != value) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
d->farPlane = value; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
emit projectionChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
\property Camera::viewSize |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
\brief the size of the front of the projection viewing volume. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
The viewing volume is assumed to be centered on the origin. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
The default value is (2, 2), which indicates a viewing volume front |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
from (-1, -1) to (1, 1). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
If the width or height of the viewing volume is negative, then the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
co-ordinates will be swapped. For example, a size of (2, -2) will |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
flip the vertical axis upside down for a viewing volume from |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
(-1, 1) to (1, -1). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
The view size will be further adjusted by the window's aspect ratio |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
when projectionMatrix() is called. For best results, the width and |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
height of the view size should be the same to define an ideal square |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
viewing volume, which is then extended to the final viewing volume |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
width and height based on the window's aspect ratio. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
\sa projectionMatrix(), minViewSize() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
QSizeF Camera::viewSize() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
return d->viewSize; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
void Camera::setViewSize(const QSizeF& size) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
QSizeF sz(size); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
if (sz.width() < d->minViewSize.width()) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
sz.setWidth(d->minViewSize.width()); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
if (sz.height() < d->minViewSize.height()) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
sz.setHeight(d->minViewSize.height()); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
if (d->viewSize != sz) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
d->viewSize = sz; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
emit projectionChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
\property Camera::minViewSize |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
\brief the minimum size of the front of the projection viewing volume. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
The minimum view size is used to clamp viewSize() when zooming |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
the camera closer to an object to prevent it "passing through" |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
the object and causing the scale factor to become infinite. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
The default value is (0.0001, 0.0001). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
\sa projectionMatrix(), viewSize() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
QSizeF Camera::minViewSize() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
return d->minViewSize; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
void Camera::setMinViewSize(const QSizeF& size) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
if (d->viewSize != size) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
d->viewSize = size; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
emit projectionChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
\property Camera::screenRotation |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
\brief the screen rotation angle in degrees. The default |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
value is 0. If this value is 90 or 270, then the view |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
504 |
will be flipped width for height. The only supported values |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
are 0, 90, 180, and 270. The screen is rotated around the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
positive z axis. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
This setting is intended for simple screen rotations on handheld |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
devices that can be held in either portrait or landscape orientations. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
The entire screen image is rotated so that it can be viewed in a |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
different device orientation. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
Use rotateEye() or rotateCenter() for more complex rotations |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
514 |
that are not aligned with 0, 90, 180, or 270 degrees. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
515 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
int Camera::screenRotation() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
519 |
return d->screenRotation; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
520 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
521 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
void Camera::setScreenRotation(int angle) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
if (d->screenRotation != angle) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
526 |
d->screenRotation = angle; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
emit projectionChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
528 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
529 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
530 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
531 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
532 |
\property Camera::xEye |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
533 |
\brief the x position of the viewer's eye. The default value is 0. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
534 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
535 |
\sa eye(), translateEye(), upVector(), center(), eyeSeparation() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
536 |
\sa motionAdjustment() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
537 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
538 |
qreal Camera::xEye() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
539 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
540 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
541 |
return d->eye.x(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
542 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
544 |
void Camera::setXEye(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
545 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
546 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
547 |
d->eye.setX(value); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
548 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
549 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
550 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
551 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
552 |
\property Camera::yEye |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
553 |
\brief the y position of the viewer's eye. The default value is 0. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
554 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
555 |
\sa eye(), translateEye(), upVector(), center(), eyeSeparation() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
556 |
\sa motionAdjustment() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
557 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
558 |
qreal Camera::yEye() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
559 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
560 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
561 |
return d->eye.y(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
562 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
563 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
564 |
void Camera::setYEye(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
565 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
566 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
567 |
d->eye.setY(value); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
568 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
569 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
570 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
571 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
572 |
\property Camera::zEye |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
573 |
\brief the z position of the viewer's eye. The default value is 10. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
574 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
575 |
\sa eye(), translateEye(), upVector(), center(), eyeSeparation() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
576 |
\sa motionAdjustment() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
577 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
578 |
qreal Camera::zEye() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
579 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
580 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
581 |
return d->eye.z(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
582 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
583 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
584 |
void Camera::setZEye(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
585 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
586 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
587 |
d->eye.setZ(value); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
588 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
589 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
590 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
591 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
592 |
\property Camera::eye |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
593 |
\brief the position of the viewer's eye. The default value is (0, 0, 10). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
594 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
595 |
\sa translateEye(), upVector(), center(), eyeSeparation() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
596 |
\sa motionAdjustment() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
597 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
598 |
QVector3D Camera::eye() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
599 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
600 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
601 |
return d->eye; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
602 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
603 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
604 |
void Camera::setEye(const QVector3D& vertex) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
605 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
606 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
607 |
if (d->eye != vertex) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
608 |
d->eye = vertex; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
609 |
d->viewVector = d->center - d->eye; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
610 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
611 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
612 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
613 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
614 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
615 |
Adjusts the position of the viewer's eye by the components of \a vector. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
616 |
The final position is eye() + \a vector. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
617 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
618 |
\sa eye(), setEye(), translateCenter() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
619 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
620 |
void Camera::translateEye(const QVector3D& vector) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
621 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
622 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
623 |
d->eye += vector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
624 |
d->viewVector = d->center - d->eye; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
625 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
626 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
627 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
628 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
629 |
\property Camera::upVector |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
630 |
\brief the up vector for the viewer. The default value is (0, 1, 0). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
631 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
632 |
\sa eye(), center() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
633 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
634 |
QVector3D Camera::upVector() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
635 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
636 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
637 |
return d->upVector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
638 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
639 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
640 |
void Camera::setUpVector(const QVector3D& vector) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
641 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
642 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
643 |
if (d->upVector != vector) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
644 |
d->upVector = vector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
645 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
646 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
647 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
648 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
649 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
650 |
\property Camera::xCentre |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
651 |
\brief the x position of the center of the view visible from the viewer's |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
652 |
position. The default value is 0. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
653 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
654 |
\sa eye(), translateEye(), upVector(), center(), eyeSeparation() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
655 |
\sa motionAdjustment() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
656 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
657 |
qreal Camera::xCentre() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
658 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
659 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
660 |
return d->center.x(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
661 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
662 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
663 |
void Camera::setXCentre(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
664 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
665 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
666 |
d->center.setX(value); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
667 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
668 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
669 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
670 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
671 |
\property Camera::yCentre |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
672 |
\brief the y position of the center of the view visible from the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
673 |
viewer's position. The default value is 0. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
674 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
675 |
\sa eye(), translateEye(), upVector(), center(), eyeSeparation() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
676 |
\sa motionAdjustment() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
677 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
678 |
qreal Camera::yCentre() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
679 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
680 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
681 |
return d->center.y(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
682 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
683 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
684 |
void Camera::setYCentre(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
685 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
686 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
687 |
d->center.setY(value); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
688 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
689 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
690 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
691 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
692 |
\property Camera::zCentre |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
693 |
\brief the z position of the center of the view visible from the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
694 |
viewer's position. The default value is 0. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
695 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
696 |
\sa eye(), translateEye(), upVector(), center(), eyeSeparation() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
697 |
\sa motionAdjustment() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
698 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
699 |
qreal Camera::zCentre() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
700 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
701 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
702 |
return d->center.z(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
703 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
704 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
705 |
void Camera::setZCentre(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
706 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
707 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
708 |
d->center.setZ(value); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
709 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
710 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
711 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
712 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
713 |
\property Camera::center |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
714 |
\brief the center of the view visible from the viewer's position. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
715 |
The default value is (0, 0, 0). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
716 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
717 |
\sa translateCenter(), eye(), upVector() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
718 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
719 |
QVector3D Camera::center() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
720 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
721 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
722 |
return d->center; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
723 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
724 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
725 |
void Camera::setCenter(const QVector3D& vertex) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
726 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
727 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
728 |
if (d->center != vertex) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
729 |
d->center = vertex; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
730 |
d->viewVector = d->center - d->eye; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
731 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
732 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
733 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
734 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
735 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
736 |
Adjusts the center of the view by the components of \a vector. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
737 |
The final position is center() + \a vector. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
738 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
739 |
\sa center(), setCenter(), translateEye() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
740 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
741 |
void Camera::translateCenter(const QVector3D& vector) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
742 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
743 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
744 |
d->center += vector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
745 |
d->viewVector = d->center - d->eye; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
746 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
747 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
748 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
749 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
750 |
\property Camera::eyeSeparation |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
751 |
\brief the separation between the eyes when stereo viewing is in use, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
752 |
with eye() specifying the mid-point between the eyes. The default |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
753 |
value is 0. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
754 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
755 |
\sa eye() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
756 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
757 |
qreal Camera::eyeSeparation() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
758 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
759 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
760 |
return d->eyeSeparation; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
761 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
762 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
763 |
void Camera::setEyeSeparation(qreal value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
764 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
765 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
766 |
if (d->eyeSeparation != value) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
767 |
d->eyeSeparation = value; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
768 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
769 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
770 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
771 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
772 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
773 |
\property Camera::motionAdjustment |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
774 |
\brief the adjustment vector to apply to the eye() for user motion. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
775 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
776 |
This property is typically used to implement motion tracking. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
777 |
It is interpreted as a vector from the center of the screen to the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
778 |
current position of the viewer. The angle between the motion |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
779 |
adjustment vector and the screen center is used to adjust the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
780 |
position of the eye() when apply() is called. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
781 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
782 |
The default value is (0, 0, 1), which indicates a viewer |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
783 |
directly in front of the center of the screen. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
784 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
785 |
The units for the vector are unspecified. They could be |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
786 |
meters, centimeters, or the force due to gravity in various |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
787 |
directions from an accelerometer. The angle defined |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
788 |
by the vector is used to perform the adjustment, not its |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
789 |
magnitude. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
790 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
791 |
The output of motion tracking hardware can be very noisy, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
792 |
with minor fluctuations due to viewer twitch movements or |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
793 |
environmental factors. The application is responsible for |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
794 |
cleaning up the signal and removing these fluctuations before |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
795 |
altering this property. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
796 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
797 |
\sa eye(), apply() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
798 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
799 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
800 |
QVector3D Camera::motionAdjustment() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
801 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
802 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
803 |
return d->motionAdjustment; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
804 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
805 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
806 |
void Camera::setMotionAdjustment(const QVector3D& vector) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
807 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
808 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
809 |
if (d->motionAdjustment != vector) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
810 |
d->motionAdjustment = vector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
811 |
if (vector.x() == 0.0f && vector.y() == 0.0f) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
812 |
// If the vector is centered, then don't perform any rotations. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
813 |
d->motionQuaternion = QQuaternion(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
814 |
} else { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
815 |
// Determine the pan and tilt angles from the vector. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
816 |
QVector3D view = -vector.normalized(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
817 |
if (view.z() < 0.0f) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
818 |
view = -view; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
819 |
qreal xangle = asin(view.x()) * 180.0f / M_PI; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
820 |
qreal yangle = asin(-view.y()) * 180.0f / M_PI; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
821 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
822 |
// Construct the pan and tilt quaternions. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
823 |
if (qFuzzyIsNull(xangle)) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
824 |
d->motionQuaternion = tilt(yangle); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
825 |
else if (qFuzzyIsNull(yangle)) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
826 |
d->motionQuaternion = pan(xangle); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
827 |
else |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
828 |
d->motionQuaternion = tilt(yangle) * pan(xangle); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
829 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
830 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
831 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
832 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
833 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
834 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
835 |
\property Camera::adjustForAspectRatio |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
836 |
\brief the adjustment state of the aspect ratio in the viewing volume. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
837 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
838 |
By default, Camera adjusts the viewing volume for the aspect |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
839 |
ratio of the window so that pixels appear square without the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
840 |
application needing to adjust viewSize() manually. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
841 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
842 |
If this property is false, then the aspect ratio adjustment is |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
843 |
not performed. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
844 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
845 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
846 |
bool Camera::adjustForAspectRatio() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
847 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
848 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
849 |
return d->adjustForAspectRatio; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
850 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
851 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
852 |
void Camera::setAdjustForAspectRatio(bool value) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
853 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
854 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
855 |
if (d->adjustForAspectRatio != value) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
856 |
d->adjustForAspectRatio = value; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
857 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
858 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
859 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
860 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
861 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
862 |
Returns the quaternion corresponding to tilting the view up or |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
863 |
down by \a angle degrees. The returned quaternion can be applied to |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
864 |
the eye() position with rotateEye() or to the center() position with |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
865 |
rotateCenter(). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
866 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
867 |
\sa pan(), roll(), rotateEye(), rotateCenter() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
868 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
869 |
QQuaternion Camera::tilt(qreal angle) const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
870 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
871 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
872 |
QVector3D side = QVector3D::crossProduct(d->viewVector, d->upVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
873 |
return QQuaternion::fromAxisAndAngle(side, angle); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
874 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
875 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
876 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
877 |
Returns the quaternion corresponding to panning the view left or |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
878 |
right by \a angle degrees. The returned quaternion can be applied to |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
879 |
the eye() position with rotateEye() or to the center() position with |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
880 |
rotateCenter(). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
881 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
882 |
\sa tilt(), roll(), rotateEye(), rotateCenter() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
883 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
884 |
QQuaternion Camera::pan(qreal angle) const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
885 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
886 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
887 |
return QQuaternion::fromAxisAndAngle(d->upVector, angle); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
888 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
889 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
890 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
891 |
Returns the quaternion corresponding to rolling the view left or |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
892 |
right by \a angle degrees. The returned quaternion can be applied to |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
893 |
the eye() position with rotateEye() or to the center() position with |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
894 |
rotateCenter(). |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
895 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
896 |
\sa tilt(), pan(), rotateEye(), rotateCenter() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
897 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
898 |
QQuaternion Camera::roll(qreal angle) const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
899 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
900 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
901 |
return QQuaternion::fromAxisAndAngle(d->viewVector, angle); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
902 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
903 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
904 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
905 |
Rotates the orientation of the eye() according to the quaternion \a q. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
906 |
The eye() will remain in the same position, but the upVector() and |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
907 |
center() may be altered by the rotation. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
908 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
909 |
\sa rotateCenter(), tilt(), pan(), roll() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
910 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
911 |
void Camera::rotateEye(const QQuaternion& q) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
912 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
913 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
914 |
d->upVector = q.rotatedVector(d->upVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
915 |
d->viewVector = q.rotatedVector(d->viewVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
916 |
d->center = d->eye + d->viewVector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
917 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
918 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
919 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
920 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
921 |
Rotates the position and orientation of the eye() around center() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
922 |
according to the quaternion \a q. The center() will remain in the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
923 |
same position, but the upVector() and eye() may be altered by |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
924 |
the rotation. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
925 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
926 |
\sa rotateEye(), tilt(), pan(), roll() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
927 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
928 |
void Camera::rotateCenter(const QQuaternion& q) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
929 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
930 |
Q_D(Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
931 |
d->upVector = q.rotatedVector(d->upVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
932 |
d->viewVector = q.rotatedVector(d->viewVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
933 |
d->eye = d->center - d->viewVector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
934 |
emit viewChanged(); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
935 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
936 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
937 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
938 |
Returns a translation vector that can be used to adjust the eye() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
939 |
or center() by \a x units side-ways, \a y units up, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
940 |
and \a z units forwards. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
941 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
942 |
This function is useful when implementing operations such as |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
943 |
"step left", "jump up", and so on where the movement should be |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
944 |
interpreted relative to the viewer's current orientation, not the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
945 |
world co-ordinate axes, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
946 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
947 |
The translation vector can be applied to eye() or center() by |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
948 |
calling translateEye() or translateCenter() respectively. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
949 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
950 |
\sa translateEye(), translateCenter() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
951 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
952 |
QVector3D Camera::translation(qreal x, qreal y, qreal z) const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
953 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
954 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
955 |
QVector3D vector(0.0f, 0.0f, 0.0f); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
956 |
if (x != 0.0f) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
957 |
vector += QVector3D::normal(d->viewVector, d->upVector) * x; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
958 |
if (y != 0.0f) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
959 |
vector += d->upVector.normalized() * y; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
960 |
if (z != 0.0f) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
961 |
vector += d->viewVector.normalized() * z; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
962 |
return vector; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
963 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
964 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
965 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
966 |
Returns the transformation matrix to apply to the projection matrix |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
967 |
to present the scene as viewed from the camera position. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
968 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
969 |
The \a aspectRatio specifies the aspect ratio of the window the |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
970 |
camera view is being displayed in. An \a aspectRatio of 1 indicates that |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
971 |
the window is square. An \a aspectRatio greater than 1 indicates that |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
972 |
the window is wider than it is high. An \a aspectRatio less than 1 |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
973 |
indicates that the window is higher than it is wide. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
974 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
975 |
\sa apply(), modelViewMatrix() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
976 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
977 |
QMatrix4x4 Camera::projectionMatrix(qreal aspectRatio) const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
978 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
979 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
980 |
QMatrix4x4 m; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
981 |
if (!d->adjustForAspectRatio) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
982 |
aspectRatio = 1.0f; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
983 |
if (d->screenRotation != 0) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
984 |
m.rotate((qreal)(d->screenRotation), 0.0f, 0.0f, 1.0f); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
985 |
if (d->screenRotation == 90 || d->screenRotation == 270) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
986 |
if (aspectRatio != 0.0f) |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
987 |
aspectRatio = 1.0f / aspectRatio; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
988 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
989 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
990 |
if (d->projectionType == Perspective && d->fieldOfView != 0.0f) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
991 |
m.perspective(d->fieldOfView, aspectRatio, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
992 |
d->nearPlane, d->farPlane); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
993 |
} else { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
994 |
qreal halfWidth = d->viewSize.width() / 2.0f; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
995 |
qreal halfHeight = d->viewSize.height() / 2.0f; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
996 |
if (aspectRatio > 1.0f) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
997 |
halfWidth *= aspectRatio; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
998 |
} else if (aspectRatio > 0.0f && aspectRatio < 1.0f) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
999 |
halfHeight /= aspectRatio; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1000 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1001 |
if (d->projectionType == Perspective) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1002 |
m.frustum(-halfWidth, halfWidth, -halfHeight, halfHeight, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1003 |
d->nearPlane, d->farPlane); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1004 |
} else { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1005 |
m.ortho(-halfWidth, halfWidth, -halfHeight, halfHeight, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1006 |
d->nearPlane, d->farPlane); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1007 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1008 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1009 |
return m; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1010 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1011 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1012 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1013 |
Returns the transformation to apply to the modelview matrix |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1014 |
to present the scene as viewed from the eye() position. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1015 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1016 |
\sa apply(), projectionMatrix() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1017 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1018 |
QMatrix4x4 Camera::modelViewMatrix() const |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1019 |
{ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1020 |
Q_D(const Camera); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1021 |
QMatrix4x4 m; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1022 |
if (d->motionQuaternion.isIdentity()) { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1023 |
m.lookAt(d->eye, d->center, d->upVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1024 |
} else { |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1025 |
QVector3D up = d->motionQuaternion.rotatedVector(d->upVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1026 |
QVector3D view = d->motionQuaternion.rotatedVector(d->viewVector); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1027 |
QVector3D eye = d->center - view; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1028 |
m.lookAt(eye, d->center, up); |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1029 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1030 |
return m; |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1031 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1032 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1033 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1034 |
\fn void Camera::projectionChanged() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1035 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1036 |
This signal is emitted when one of projectionType(), fieldOfView(), |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1037 |
nearPlane(), farPlane(), viewSize(), or screenRotation() changes, |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1038 |
indicating a modification to the optical properties of the camera |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1039 |
looking at the scene. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1040 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1041 |
\sa viewChanged() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1042 |
*/ |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1043 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1044 |
/*! |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1045 |
\fn void Camera::viewChanged() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1046 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1047 |
This signal is emitted when one of eye(), upVector(), or center() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1048 |
changes, indicating a modification to the viewer's position or |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1049 |
orientation. |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1050 |
|
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1051 |
\sa projectionChanged() |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1052 |
*/ |