QDistanceReading Class
The QDistanceReading class holds distance reading in cm from the proximity sensor. 更多...
| 头文件: | #include <QDistanceReading> |
| qmake: | QT += sensors |
| 开始支持版本: | Qt 5.4 |
| 基类: | QSensorReading |
属性
- distance : const qreal
- 1 个属性继承自 QSensorReading
- 1 个属性继承自 QObject
公有函数
| qreal | distance() const |
| void | setDistance(qreal distance) |
- 4 个公有函数继承自 QSensorReading
- 32 个公有函数继承自 QObject
其他继承的成员
- 1 个公有槽函数继承自 QObject
- 2 个信号继承自 QObject
- 1 个公有变量继承自 QObject
- 10 个静态公有成员继承自 QObject
- 9 个受保护的函数继承自 QObject
- 2 个受保护的变量继承自 QObject
详细描述
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.
QDistanceReading Units
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.