QPressureReading
#include <QtSensors/QPressureReading>
QtSensors
The QPressureReading class holds readings from the pressure sensor.
Overview
Inheritance
| QSensorReading | ||
| QPressureReading | ||
Properties Index
| qreal | pressure [read-only] |
| qreal | temperature [read-only] |
| QtMobility::qtimestamp | timestamp [read-only] |
Public Functions Index
| qreal | pressure () const |
| void | setPressure (qreal pressure) |
| void | setTemperature (qreal temperature) |
| qreal | temperature () const |
| void | setTimestamp (qtimestamp timestamp) |
| qtimestamp | timestamp () const |
| QVariant | value (int index) const |
| int | valueCount () const |
Protected Functions Index
Only has inherited protected functions
| virtual void | copyValuesFrom (QSensorReading *other) |
| QScopedPointer< QSensorReadingPrivate > * | d_ptr () |
| QSensorReading (QObject *parent, QSensorReadingPrivate *d) |
Properties
qreal
The pressure sensor's temperature.
The temperature is returned in degree Celsius. This property provides the pressure sensor die temperature. Note that this temperature may be (and usually is) different than the temperature reported from QAmbientTemperatureSensor.
QtMobility::qtimestamp timestamp[read-only]
the timestamp of the reading.
Returns the timestamp of the reading.
1.0
,1.0
Public Functions
qreal
void
Sets the pressure to pressure.
void
Sets the pressure sensor's temperature to temperature.
qreal
void
Sets the timestamp of the reading.
1.0
QVariant
Returns the value of the property at index.
Note that this function is slower than calling the data function directly.
Here is an example of getting a property via the different mechanisms available.
Accessing directly provides the best performance but requires compile-time knowledge of the data you are accessing.
QAccelerometerReading *reading = ...; qreal x = reading->x();
You can also access a property by name. To do this you must call QObject::property().
qreal x = reading->property("x").value<qreal>();
Finally, you can access values via numeric index.
qreal x = reading->value(0).value<qreal>();
Note that value() can only access properties declared with Q_PROPERTY() in sub-classes of QSensorReading.
valueCount(), QObject::property()
1.0
int
Returns the number of extra properties that the reading has.
Note that this does not count properties declared in QSensorReading.
1.0
Protected Functions
(Only has inherited protected functions)
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