QDistanceReading Class
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 |
This class was introduced in Qt 5.4.
Properties
- distance : const qreal
- 1 property inherited from QSensorReading
- 1 property inherited from QObject
Public Functions
qreal | distance() const |
void | setDistance(qreal distance) |
- 4 public functions inherited from QSensorReading
- 30 public functions inherited from QObject
Related Non-Members
typedef | QObjectList |
QList<T> | qFindChildren(const QObject *obj, const QRegExp ®Exp) |
T | qobject_cast(QObject *object) |
T | qobject_cast(const QObject *object) |
Macros
DECLARE_READING(classname) | |
IMPLEMENT_READING(classname) | |
QT_NO_NARROWING_CONVERSIONS_IN_CONNECT | |
Q_CLASSINFO(Name, Value) | |
Q_DISABLE_COPY(Class) | |
Q_DISABLE_COPY_MOVE(Class) | |
Q_DISABLE_MOVE(Class) | |
Q_EMIT | |
Q_ENUM(...) | |
Q_ENUM_NS(...) | |
Q_FLAG(...) | |
Q_FLAG_NS(...) | |
Q_GADGET | |
Q_INTERFACES(...) | |
Q_INVOKABLE | |
Q_NAMESPACE | |
Q_OBJECT | |
Q_PROPERTY(...) | |
Q_REVISION | |
Q_SET_OBJECT_NAME(Object) | |
Q_SIGNAL | |
Q_SIGNALS | |
Q_SLOT | |
Q_SLOTS |
Additional Inherited Members
- 1 public slot inherited from QObject
- 2 signals inherited from QObject
- 9 static public members inherited from QObject
- 9 protected functions inherited from QObject
Detailed Description
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.
Property Documentation
distance : const qreal
distance of object from front face of device
Access functions:
qreal | distance() const |
See also QDistanceReading Units.