QCameraLens Class
class Qt3DRender::QCameraLensQt3DRender::QCameraLens specifies the projection matrix that will be used to define a Camera for a 3D scene. More...
| Header: | #include <Qt3DRender/QCameraLens> |
| qmake: | QT += 3drender |
| Since: | Qt 5.5 |
| Instantiated By: | CameraLens |
| Inherits: | Qt3DCore::QComponent |
This class was introduced in Qt 5.5.
Public Types
| enum | ProjectionType { OrthographicProjection, PerspectiveProjection, FrustumProjection, CustomProjection } |
Properties
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Public Functions
| float | aspectRatio() const |
| float | bottom() const |
| float | exposure() const |
| float | farPlane() const |
| float | fieldOfView() const |
| float | left() const |
| float | nearPlane() const |
| QMatrix4x4 | projectionMatrix() const |
| Qt3DRender::QCameraLens::ProjectionType | projectionType() const |
| float | right() const |
| float | top() const |
Public Slots
| void | setAspectRatio(float aspectRatio) |
| void | setBottom(float bottom) |
| void | setExposure(float exposure) |
| void | setFarPlane(float farPlane) |
| void | setFieldOfView(float fieldOfView) |
| void | setLeft(float left) |
| void | setNearPlane(float nearPlane) |
| void | setProjectionMatrix(const QMatrix4x4 &projectionMatrix) |
| void | setProjectionType(Qt3DRender::QCameraLens::ProjectionType projectionType) |
| void | setRight(float right) |
| void | setTop(float top) |
Signals
| void | aspectRatioChanged(float aspectRatio) |
| void | bottomChanged(float bottom) |
| void | exposureChanged(float exposure) |
| void | farPlaneChanged(float farPlane) |
| void | fieldOfViewChanged(float fieldOfView) |
| void | leftChanged(float left) |
| void | nearPlaneChanged(float nearPlane) |
| void | projectionMatrixChanged(const QMatrix4x4 &projectionMatrix) |
| void | projectionTypeChanged(QCameraLens::ProjectionType projectionType) |
| void | rightChanged(float right) |
| void | topChanged(float top) |
Detailed Description
Member Type Documentation
enum QCameraLens::ProjectionType
Specifies which parameters of Qt3DRender::QCameraLens are used to compute the projection matrix.
| Constant | Value | Description |
|---|---|---|
Qt3DRender::QCameraLens::OrthographicProjection | 0 | Orthogonal projection |
Qt3DRender::QCameraLens::PerspectiveProjection | 1 | Perspective projection |
Qt3DRender::QCameraLens::FrustumProjection | 2 | Frustum projection |
Qt3DRender::QCameraLens::CustomProjection | 3 | Custom user-defined projection |
Property Documentation
aspectRatio : float
Holds the current aspect ratio of the camera lens.
Note: : The return value may be undefined if the projection type is not Qt3DRender::QCameraLens::PerspectiveProjection.
Access functions:
| float | aspectRatio() const |
| void | setAspectRatio(float aspectRatio) |
Notifier signal:
| void | aspectRatioChanged(float aspectRatio) |
bottom : float
Holds the current bottom plane of the camera lens.
Note: The return value may be undefined if the projection type is Qt3DRender::QCameraLens::PerspectiveProjection.
Access functions:
| float | bottom() const |
| void | setBottom(float bottom) |
Notifier signal:
| void | bottomChanged(float bottom) |
exposure : float
Holds the current exposure of the camera lens.
Access functions:
| float | exposure() const |
| void | setExposure(float exposure) |
Notifier signal:
| void | exposureChanged(float exposure) |
farPlane : float
Holds the current near plane of the camera lens.
Access functions:
| float | farPlane() const |
| void | setFarPlane(float farPlane) |
Notifier signal:
| void | farPlaneChanged(float farPlane) |
fieldOfView : float
Holds the current field of view of the camera lens.
Note: : The return value may be undefined if the projection type is not Qt3DRender::QCameraLens::PerspectiveProjection.
Access functions:
| float | fieldOfView() const |
| void | setFieldOfView(float fieldOfView) |
Notifier signal:
| void | fieldOfViewChanged(float fieldOfView) |
left : float
Holds the current left plane of the camera lens.
Note: The return value may be undefined if the projection type is Qt3DRender::QCameraLens::PerspectiveProjection.
Access functions:
| float | left() const |
| void | setLeft(float left) |
Notifier signal:
| void | leftChanged(float left) |
nearPlane : float
Holds the current near plane of the camera lens.
Access functions:
| float | nearPlane() const |
| void | setNearPlane(float nearPlane) |
Notifier signal:
| void | nearPlaneChanged(float nearPlane) |
projectionMatrix : QMatrix4x4
Holds the current projection matrix of the camera lens.
Access functions:
| QMatrix4x4 | projectionMatrix() const |
| void | setProjectionMatrix(const QMatrix4x4 &projectionMatrix) |
Notifier signal:
| void | projectionMatrixChanged(const QMatrix4x4 &projectionMatrix) |
projectionType : ProjectionType
Holds the type of the camera projection.
Access functions:
| Qt3DRender::QCameraLens::ProjectionType | projectionType() const |
| void | setProjectionType(Qt3DRender::QCameraLens::ProjectionType projectionType) |
Notifier signal:
| void | projectionTypeChanged(QCameraLens::ProjectionType projectionType) |
See also Qt3DRender::QCameraLens::ProjectionType.
right : float
Holds the current right plane of the camera lens.
Note: The return value may be undefined if the projection type is Qt3DRender::QCameraLens::PerspectiveProjection.
Access functions:
| float | right() const |
| void | setRight(float right) |
Notifier signal:
| void | rightChanged(float right) |
top : float
Holds the current top plane of the camera lens.
Note: The return value may be undefined if the projection type is Qt3DRender::QCameraLens::PerspectiveProjection.
Access functions:
| float | top() const |
| void | setTop(float top) |
Notifier signal:
| void | topChanged(float top) |