QScreenRayCaster Class
(Qt3DRender::QScreenRayCaster)Performe ray casting test based on screen coordinates. More...
| Header: | #include <QScreenRayCaster> |
| qmake: | QT += 3drender |
| Since: | Qt 5.11 |
| Instantiated By: | ScreenRayCaster |
| Inherits: | Qt3DRender::QAbstractRayCaster |
This class was introduced in Qt 5.11.
Properties
- position : QPoint
Public Functions
| QPoint | position() const |
Public Slots
| void | setPosition(const QPoint &position) |
| void | trigger(const QPoint &position) |
| void | trigger() |
Signals
| void | positionChanged(const QPoint &position) |
Detailed Description
QScreenRayCaster can be used to perform ray casting tests by specifying coordinates in screen space, which will be used to construct an actual 3D ray between the near and far planes.
See also QRayCaster and QNoPicking.
Property Documentation
position : QPoint
Holds the screen space position used to compute the actual 3D ray for intersection tests.
Note: the coordinates will be used for every available render surface as long as they are in the valid range.
Access functions:
| QPoint | position() const |
| void | setPosition(const QPoint &position) |
Notifier signal:
| void | positionChanged(const QPoint &position) |
Member Function Documentation
[slot] void QScreenRayCaster::trigger(const QPoint &position)
Convenience method to set the coordinate value position and enable the component to trigger tests.
[slot] void QScreenRayCaster::trigger()
Convenience method to enable the component and trigger tests using the current coordinate value.
© The Qt Company Ltd
Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-5.14/qt3drender-qscreenraycaster.html