The QDistanceReading class holds distance reading in cm from the proximity sensor. More...
| Header: | #include <QDistanceReading> |
| qmake: | QT += sensors |
| Since: | Qt 5.4 |
| Inherits: | QSensorReading |
| QDistanceReading(QObject *parent = DECLARE_READING(QDistanceReading)) | |
| virtual | ~QDistanceReading() |
| qreal | distance() const |
| void | setDistance(qreal distance) |
| virtual void | copyValuesFrom(QSensorReading *other) override |
The QDistanceReading class holds distance reading in cm from the proximity sensor.
The QDistanceReading class holds distance reading in cm from the proximity sensor. Note: Some proximity sensor only support two values for distance, a near and far value. In this case, the sensor should report its maximum range value to represent the far state, and a lesser value to represent the near state.
The distance is measured in cm
The distance sensor is typically located in the front face of a device, and thus will measure the distance of an object from the device's front face.
distance of object from front face of device
Access functions:
| qreal | distance() const |
See also QDistanceReading Units.
Default constructs an instance of QDistanceReading.
[virtual] QDistanceReading::~QDistanceReading()Destroys the instance of QDistanceReading. The destructor is virtual.
[override virtual] void QDistanceReading::copyValuesFrom(QSensorReading *other)Sets distance to distance.
See also distance().
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