QSensorReading

Since: 1.0

#include <QtSensors/QSensorReading>

More information will be added here shortly. For now, you'll find more extensive information about this class in the Qt reference for QSensorReading

QtSensors

The QSensorReading class holds the readings from the sensor.

Note that QSensorReading is not particularly useful by itself. The interesting data for each sensor is defined in a sub-class of QSensorReading


Overview

Properties Index

QtMobility::qtimestamptimestamp [read-only]

Public Functions Index

virtual ~QSensorReading ()
voidsetTimestamp (qtimestamp timestamp)
qtimestamptimestamp () const
QVariantvalue (int index) const
intvalueCount () const

Protected Functions Index

QSensorReading (QObject *parent, QSensorReadingPrivate *d)
virtual voidcopyValuesFrom (QSensorReading *other)
QScopedPointer< QSensorReadingPrivate > *d_ptr ()

Properties

QtMobility::qtimestamp timestamp[read-only]

the timestamp of the reading.

See also:

qtimestamp

Since:

1.0

,

1.0

Public Functions

virtual~QSensorReading ()

Destructor.

void setTimestamp (

Sets the timestamp of the reading.

Since:

1.0

qtimestamp timestamp ()

QVariant value (
  • intindex)

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.

See also:

valueCount(), QObject::property()

Since:

1.0

int valueCount ()

Returns the number of extra properties that the reading has.

Note that this does not count properties declared in QSensorReading.

As an example, this returns 3 for QAccelerometerReading because there are 3 properties defined in that class.
Since:

1.0

Protected Functions

QSensorReading (
  • QObject *parent,
  • QSensorReadingPrivate *d )

virtual void copyValuesFrom (

QScopedPointer< QSensorReadingPrivate > * d_ptr ()

Last modified: 2015-03-26



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