QPressureReading Class

The QPressureReading class holds readings from the pressure sensor. 更多...

头: #include <QPressureReading>
qmake: QT += sensors
Since: Qt 5.1
继承: QSensorReading

该类在 Qt 5.1 引入。

特性

公共函数

qreal pressure () const
void setPressure (qreal pressure )
void setTemperature (qreal temperature )
qreal temperature () const

详细描述

QPressureReading Units

The pressure sensor returns atmospheric pressure values in Pascals.

特性文档编制

pressure : const qreal

This property holds the measured atmospheric pressure.

Returned as Pascals.

访问函数:

qreal pressure () const

另请参阅 QPressureReading Units .

temperature : const qreal

This property holds the pressure sensor's temperature.

The temperature is returned in degree Celsius. This property, if supported, provides the pressure sensor die temperature. Note that this temperature may be (and usually is) different than the temperature reported from QAmbientTemperatureSensor 。使用 QSensor::isFeatureSupported () 采用 QSensor::PressureSensorTemperature flag to determine its availability.

该特性在 Qt 5.2 引入。

访问函数:

qreal temperature () const

成员函数文档编制

void QPressureReading:: setPressure ( qreal pressure )

Sets the pressure to pressure .

另请参阅 pressure ().

void QPressureReading:: setTemperature ( qreal temperature )

Sets the pressure sensor's temperature to temperature .

该函数在 Qt 5.2 引入。

另请参阅 temperature ().