The QCompassReading class represents one reading from a compass. More...
#include <QCompassReading>Inherits: QSensorReading.
This class was introduced in Qt Mobility 1.0.
| qreal | azimuth () const |
| qreal | calibrationLevel () const |
| void | setAzimuth ( qreal azimuth ) |
| void | setCalibrationLevel ( qreal calibrationLevel ) |
The QCompassReading class represents one reading from a compass.
The compass returns the azimuth of the device as degrees from magnetic north in a clockwise direction based on the top of the UI. There is also a value to indicate the calibration status of the device. If the device is not calibrated the azimuth may not be accurate.
Digital compasses are susceptible to magnetic interference and may need calibration after being placed near anything that emits a magnetic force. Accuracy of the compass can be affected by any ferrous materials that are nearby.
The calibration status of the device is measured as a number from 0 to 1. A value of 1 is the highest level that the device can support and 0 is the worst.
See also CS001671 - Calibrating the magnetometer sensor.
This property holds the azimuth of the device.
Measured in degrees from magnetic north in a clockwise direction based the top of the UI.
This property was introduced in Qt Mobility 1.0.
Access functions:
| qreal | azimuth () const |
See also QCompassReading Units.
This property holds the calibration level of the reading.
Measured as a value from 0 to 1 with higher values being better.
This property was introduced in Qt Mobility 1.0.
Access functions:
| qreal | calibrationLevel () const |
See also QCompassReading Units and CS001671 - Calibrating the magnetometer sensor.
Sets the azimuth of the device.
This function was introduced in Qt Mobility 1.0.
See also azimuth() and QCompassReading Units.
Sets the calibration level of the reading to calibrationLevel.
This function was introduced in Qt Mobility 1.0.
See also calibrationLevel().