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Adaptation/GUID-F6E83530-3F8E-5930-8C6C-4D58B675E67A.dita
author Graeme Price <GRAEME.PRICE@NOKIA.COM>
Fri, 15 Oct 2010 14:32:18 +0100
changeset 15 307f4279f433
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Initial contribution of the Adaptation Documentation.
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License
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"Eclipse Public License v1.0" which accompanies this distribution,
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors:
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-F6E83530-3F8E-5930-8C6C-4D58B675E67A" xml:lang="en"><title>Digitizer
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Driver Technology</title><shortdesc>Describes how screen coordinates work with the Digitizer Driver.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>The digitizer hardware provides coordinate values that are digitized raw
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voltage values. These values are not the same as screen coordinates, which
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are based on pixel positions. The digitizer converts the raw values into screen
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coordinates and vice-versa. </p>
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<p>Screen coordinates always have their origin at the top left hand corner
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of the screen, but the digitizer has no such constraint - its origin, orientation
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and scaling are generally different from the screen coordinate system. This
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means that the digitizer needs to be calibrated so that digitizer coordinates
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can be translated to screen coordinates. </p>
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</conbody></concept>
MCL/sftools/depl/docscontent