QGeometryView Class

class Qt3DCore ::QGeometryView

Encapsulates geometry details. 更多...

头：	#include <QGeometryView>
CMake:	find_package(Qt6 REQUIRED COMPONENTS 3dcore) target_link_libraries(mytarget PRIVATE Qt6::3dcore)
qmake:	QT += 3dcore
Since:	Qt 6.0
实例化：	GeometryView
继承：	Qt3DCore::QNode
继承者：	Qt3DExtras::QConeGeometryView , Qt3DExtras::QCuboidGeometryView , Qt3DExtras::QCylinderGeometryView , Qt3DExtras::QPlaneGeometryView , Qt3DExtras::QSphereGeometryView ，和 Qt3DExtras::QTorusGeometryView

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公共类型

enum	PrimitiveType { Points, Lines, LineLoop, LineStrip, Triangles, …, Patches }

特性

firstInstance : int firstVertex : int geometry : Qt3DCore::QGeometry* indexBufferByteOffset : int indexOffset : int instanceCount : int

primitiveRestartEnabled : bool primitiveType : PrimitiveType restartIndexValue : int vertexCount : int verticesPerPatch : int

公共函数

	QGeometryView (Qt3DCore::QNode * parent = nullptr)
int	firstInstance () const
int	firstVertex () const
Qt3DCore::QGeometry *	geometry () const
int	indexBufferByteOffset () const
int	indexOffset () const
int	instanceCount () const
bool	primitiveRestartEnabled () const
Qt3DCore::QGeometryView::PrimitiveType	primitiveType () const
int	restartIndexValue () const
int	vertexCount () const
int	verticesPerPatch () const

公共槽

void	setFirstInstance (int firstInstance )
void	setFirstVertex (int firstVertex )
void	setGeometry (Qt3DCore::QGeometry * geometry )
void	setIndexBufferByteOffset (int offset )
void	setIndexOffset (int indexOffset )
void	setInstanceCount (int instanceCount )
void	setPrimitiveRestartEnabled (bool enabled )
void	setPrimitiveType (Qt3DCore::QGeometryView::PrimitiveType primitiveType )
void	setRestartIndexValue (int index )
void	setVertexCount (int vertexCount )
void	setVerticesPerPatch (int verticesPerPatch )

信号

void	firstInstanceChanged (int firstInstance )
void	firstVertexChanged (int firstVertex )
void	geometryChanged (Qt3DCore::QGeometry * geometry )
void	indexBufferByteOffsetChanged (int offset )
void	indexOffsetChanged (int indexOffset )
void	instanceCountChanged (int instanceCount )
void	primitiveRestartEnabledChanged (bool primitiveRestartEnabled )
void	primitiveTypeChanged (Qt3DCore::QGeometryView::PrimitiveType primitiveType )
void	restartIndexValueChanged (int restartIndexValue )
void	vertexCountChanged (int vertexCount )
void	verticesPerPatchChanged (int verticesPerPatch )

详细描述

A GeometryView holds all the information necessary to handle a Geometry. A Geometry holds the coordinates of the geometry data - GeometryView specifies how to interpret that data.

成员类型文档编制

enum QGeometryView:: PrimitiveType

The type of the primitive.

常量	值	描述
Qt3DCore::QGeometryView::Points	0x0000	List of points
Qt3DCore::QGeometryView::Lines	0x0001	List of lines
Qt3DCore::QGeometryView::LineLoop	0x0002	Connected group of lines connected at ends forming a loop
Qt3DCore::QGeometryView::LineStrip	0x0003	Connected group of lines
Qt3DCore::QGeometryView::Triangles	0x0004	List of triangles
Qt3DCore::QGeometryView::TriangleStrip	0x0005	List of connected triangles
Qt3DCore::QGeometryView::TriangleFan	0x0006	List of connected triagles where all triangles share the first vertex
Qt3DCore::QGeometryView::LinesAdjacency	0x000A	Allows geometry shader to access adjacent lines in a line list
Qt3DCore::QGeometryView::TrianglesAdjacency	0x000C	Allows geometry shader to access adjacent triangles in a triangle list
Qt3DCore::QGeometryView::LineStripAdjacency	0x000B	Allows geometry shader to access adjacent lines in a line strip
Qt3DCore::QGeometryView::TriangleStripAdjacency	0x000D	Allows geometry shader to access adjacent triangles in a triangle strip
Qt3DCore::QGeometryView::Patches	0x000E	Only primitive type accepted by tesselation shader where a patch consists of arbitrary number of vertices

特性文档编制

firstInstance : int

Holds the base instance.

访问函数：

int	firstInstance () const
void	setFirstInstance (int firstInstance )

通知程序信号：

void	firstInstanceChanged (int firstInstance )

firstVertex : int

Holds the base vertex.

访问函数：

int	firstVertex () const
void	setFirstVertex (int firstVertex )

通知程序信号：

void	firstVertexChanged (int firstVertex )

geometry : Qt3DCore::QGeometry *

Holds the geometry.

访问函数：

Qt3DCore::QGeometry *	geometry () const
void	setGeometry (Qt3DCore::QGeometry * geometry )

通知程序信号：

void	geometryChanged (Qt3DCore::QGeometry * geometry )

indexBufferByteOffset : int

Holds the byte offset into the index buffer.

访问函数：

int	indexBufferByteOffset () const
void	setIndexBufferByteOffset (int offset )

通知程序信号：

void	indexBufferByteOffsetChanged (int offset )

indexOffset : int

Holds the base vertex.

访问函数：

int	indexOffset () const
void	setIndexOffset (int indexOffset )

通知程序信号：

void	indexOffsetChanged (int indexOffset )

instanceCount : int

Holds the instance count.

访问函数：

int	instanceCount () const
void	setInstanceCount (int instanceCount )

通知程序信号：

void	instanceCountChanged (int instanceCount )

primitiveRestartEnabled : bool

Holds the primitive restart flag.

访问函数：

bool	primitiveRestartEnabled () const
void	setPrimitiveRestartEnabled (bool enabled )

通知程序信号：

void	primitiveRestartEnabledChanged (bool primitiveRestartEnabled )

primitiveType : PrimitiveType

Holds the primitive type.

访问函数：

Qt3DCore::QGeometryView::PrimitiveType	primitiveType () const
void	setPrimitiveType (Qt3DCore::QGeometryView::PrimitiveType primitiveType )

通知程序信号：

void	primitiveTypeChanged (Qt3DCore::QGeometryView::PrimitiveType primitiveType )

restartIndexValue : int

Holds the restart index.

访问函数：

int	restartIndexValue () const
void	setRestartIndexValue (int index )

通知程序信号：

void	restartIndexValueChanged (int restartIndexValue )

vertexCount : int

Holds the primitive count.

访问函数：

int	vertexCount () const
void	setVertexCount (int vertexCount )

通知程序信号：

void	vertexCountChanged (int vertexCount )

verticesPerPatch : int

Holds vertices per patch.

访问函数：

int	verticesPerPatch () const
void	setVerticesPerPatch (int verticesPerPatch )

通知程序信号：

void	verticesPerPatchChanged (int verticesPerPatch )

成员函数文档编制

[explicit] QGeometryView:: QGeometryView ( Qt3DCore::QNode * parent = nullptr)

Constructs a new QGeometryView with parent .

内容

• 公共类型

• 特性

• 公共函数

• 公共槽

• 信号

• 详细描述