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48 |
48 |
49 /*! |
49 /*! |
50 \class QAccelerometerReading |
50 \class QAccelerometerReading |
51 \ingroup sensors_reading |
51 \ingroup sensors_reading |
52 |
52 |
53 \preliminary |
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54 \brief The QAccelerometerReading class reports on linear acceleration |
53 \brief The QAccelerometerReading class reports on linear acceleration |
55 along the X, Y and Z axes. |
54 along the X, Y and Z axes. |
56 |
55 |
57 \section2 QAccelerometerReading Units |
56 \section2 QAccelerometerReading Units |
58 The scale of the values is meters per second squared. |
57 The scale of the values is meters per second squared. |
59 The axes are arranged as follows. |
58 The axes are arranged as follows. |
60 |
59 |
61 \code |
60 \image sensors-coordinates2.jpg |
62 +z |
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63 | |
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64 | +y |
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65 | / |
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66 |----/---- |
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67 /| NOKIA /| |
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68 //|--/--- / | |
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69 // | / // / |
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70 // |/ // / |
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71 // '--------------- +x |
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72 // // / |
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73 // // / |
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74 /---------/ / |
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75 / O / / |
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76 / / / |
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77 ---------- / |
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78 |_________!/ |
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79 \endcode |
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80 |
61 |
81 A monoblock device sitting at rest, face up on a desk will experience |
62 A monoblock device sitting at rest, face up on a desk will experience |
82 a force of approximately 9.8 on the Z axis (ie. towards the roof). |
63 a force of approximately 9.8 on the Z axis (ie. towards the roof). |
83 This is the proper acceleration the device experiences relative to |
64 This is the proper acceleration the device experiences relative to |
84 freefall. |
65 freefall. |
85 */ |
66 */ |
86 |
67 |
87 /*! |
68 /*! |
88 \property QAccelerometerReading::x |
69 \property QAccelerometerReading::x |
151 |
132 |
152 /*! |
133 /*! |
153 \class QAccelerometerFilter |
134 \class QAccelerometerFilter |
154 \ingroup sensors_filter |
135 \ingroup sensors_filter |
155 |
136 |
156 \preliminary |
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157 \brief The QAccelerometerFilter class is a convenience wrapper around QSensorFilter. |
137 \brief The QAccelerometerFilter class is a convenience wrapper around QSensorFilter. |
158 |
138 |
159 The only difference is that the filter() method features a pointer to QAccelerometerReading |
139 The only difference is that the filter() method features a pointer to QAccelerometerReading |
160 instead of QSensorReading. |
140 instead of QSensorReading. |
161 */ |
141 */ |
172 |
152 |
173 /*! |
153 /*! |
174 \class QAccelerometer |
154 \class QAccelerometer |
175 \ingroup sensors_type |
155 \ingroup sensors_type |
176 |
156 |
177 \preliminary |
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178 \brief The QAccelerometer class is a convenience wrapper around QSensor. |
157 \brief The QAccelerometer class is a convenience wrapper around QSensor. |
179 |
158 |
180 The only behavioural difference is that this class sets the type properly. |
159 The only behavioural difference is that this class sets the type properly. |
181 |
160 |
182 This class also features a reading() function that returns a QAccelerometerReading instead of a QSensorReading. |
161 This class also features a reading() function that returns a QAccelerometerReading instead of a QSensorReading. |