QScreenRayCaster Class

Performe ray casting test based on screen coordinates.

This class was introduced in Qt 5.11.

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Publié le 26 janvier 2024 - Mis à jour le 26 janvier 2024

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QScreenRayCaster Class▲

Header: QScreenRayCaster
Since: Qt 5.11
CMake:

find_package(Qt6 REQUIRED COMPONENTS 3drender)

target_link_libraries(mytarget PRIVATE Qt6::3drender)
qmake: QT += 3drender
Inherited By:
Instantiated By: qml-qt3d-render-screenraycaster.xml
Inherits: Qt3DRender::QAbstractRayCaster

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.

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:

position() const
void setPosition(const &position)

Notifier signal:

void positionChanged(const &position)

Member Function Documentation▲

void QScreenRayCaster::trigger()▲

Convenience method to enable the component and trigger tests using the current coordinate value.

void QScreenRayCaster::trigger(const QPoint &position)▲

Convenience method to set the coordinate value position and enable the component to trigger tests.

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