osg::PrimitiveFunctor Class Reference

A PrimitiveFunctor is used (in conjunction with osg::Drawable::accept (PrimitiveFunctor&)) to get access to the primitives that compose the things drawn by OSG. More...

Inheritance diagram for osg::PrimitiveFunctor:

Public Member Functions
virtual	~PrimitiveFunctor ()
virtual void	setVertexArray (unsigned int count, const Vec2 *vertices)=0
	Sets the array of vertices used to describe the primitives. More...
virtual void	setVertexArray (unsigned int count, const Vec3 *vertices)=0
	Sets the array of vertices used to describe the primitives. More...
virtual void	setVertexArray (unsigned int count, const Vec4 *vertices)=0
	Sets the array of vertices used to describe the primitives. More...
virtual void	setVertexArray (unsigned int count, const Vec2d *vertices)=0
	Sets the array of vertices used to describe the primitives. More...
virtual void	setVertexArray (unsigned int count, const Vec3d *vertices)=0
	Sets the array of vertices used to describe the primitives. More...
virtual void	setVertexArray (unsigned int count, const Vec4d *vertices)=0
	Sets the array of vertices used to describe the primitives. More...
virtual void	drawArrays (GLenum mode, GLint first, GLsizei count)=0
	Mimics the OpenGL glDrawArrays() function. More...
virtual void	drawElements (GLenum mode, GLsizei count, const GLubyte *indices)=0
	Mimics the OpenGL glDrawElements() function. More...
virtual void	drawElements (GLenum mode, GLsizei count, const GLushort *indices)=0
	Mimics the OpenGL glDrawElements() function. More...
virtual void	drawElements (GLenum mode, GLsizei count, const GLuint *indices)=0
	Mimics the OpenGL glDrawElements() function. More...

Detailed Description

A PrimitiveFunctor is used (in conjunction with osg::Drawable::accept (PrimitiveFunctor&)) to get access to the primitives that compose the things drawn by OSG.

If osg::Drawable::accept() is called with a PrimitiveFunctor parameter, the Drawable will "pretend" it is drawing itself, but instead of calling real OpenGL functions, it will call PrimitiveFunctor's member functions that "mimic" the OpenGL calls.

Concrete subclasses of PrimitiveFunctor must implement these methods so that they performs whatever they want.

Constructor & Destructor Documentation

~PrimitiveFunctor()

virtual osg::PrimitiveFunctor::~PrimitiveFunctor ( )

inlinevirtual

References drawArrays(), drawElements(), and setVertexArray().

Member Function Documentation

drawArrays()

virtual void osg::PrimitiveFunctor::drawArrays ( GLenum  mode, GLint  first, GLsizei  count  )

pure virtual

Mimics the OpenGL glDrawArrays() function.

Implemented in osg::TemplatePrimitiveFunctor< T >, osg::TriangleFunctor< T >, and osgUtil::Statistics.

Referenced by ~PrimitiveFunctor(), and osg::PrimitiveIndexFunctor::~PrimitiveIndexFunctor().

drawElements() [1/3]

virtual void osg::PrimitiveFunctor::drawElements ( GLenum  mode, GLsizei  count, const GLubyte *  indices  )

pure virtual

Mimics the OpenGL glDrawElements() function.

Implemented in osg::TemplatePrimitiveFunctor< T >, osg::TriangleFunctor< T >, and osgUtil::Statistics.

Referenced by ~PrimitiveFunctor(), and osg::PrimitiveIndexFunctor::~PrimitiveIndexFunctor().

drawElements() [2/3]

virtual void osg::PrimitiveFunctor::drawElements ( GLenum  mode, GLsizei  count, const GLushort *  indices  )

pure virtual

Mimics the OpenGL glDrawElements() function.

Implemented in osg::TemplatePrimitiveFunctor< T >, osg::TriangleFunctor< T >, and osgUtil::Statistics.

drawElements() [3/3]

virtual void osg::PrimitiveFunctor::drawElements ( GLenum  mode, GLsizei  count, const GLuint *  indices  )

pure virtual

Mimics the OpenGL glDrawElements() function.

Implemented in osg::TriangleFunctor< T >, osg::TemplatePrimitiveFunctor< T >, and osgUtil::Statistics.

setVertexArray() [1/6]

virtual void osg::PrimitiveFunctor::setVertexArray ( unsigned int  count, const Vec2 *  vertices  )

pure virtual

Sets the array of vertices used to describe the primitives.

Somehow mimics the OpenGL glVertexPointer() function.

Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.

Referenced by ~PrimitiveFunctor(), and osg::PrimitiveIndexFunctor::~PrimitiveIndexFunctor().

setVertexArray() [2/6]

virtual void osg::PrimitiveFunctor::setVertexArray ( unsigned int  count, const Vec3 *  vertices  )

pure virtual

Sets the array of vertices used to describe the primitives.

Somehow mimics the OpenGL glVertexPointer() function.

Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.

setVertexArray() [3/6]

virtual void osg::PrimitiveFunctor::setVertexArray ( unsigned int  count, const Vec4 *  vertices  )

pure virtual

Sets the array of vertices used to describe the primitives.

Somehow mimics the OpenGL glVertexPointer() function.

Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.

setVertexArray() [4/6]

virtual void osg::PrimitiveFunctor::setVertexArray ( unsigned int  count, const Vec2d *  vertices  )

pure virtual

Sets the array of vertices used to describe the primitives.

Somehow mimics the OpenGL glVertexPointer() function.

Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.

setVertexArray() [5/6]

virtual void osg::PrimitiveFunctor::setVertexArray ( unsigned int  count, const Vec3d *  vertices  )

pure virtual

Sets the array of vertices used to describe the primitives.

Somehow mimics the OpenGL glVertexPointer() function.

Implemented in osgUtil::Statistics, osg::TemplatePrimitiveFunctor< T >, and osg::TriangleFunctor< T >.

setVertexArray() [6/6]

virtual void osg::PrimitiveFunctor::setVertexArray ( unsigned int  count, const Vec4d *  vertices  )

pure virtual

Sets the array of vertices used to describe the primitives.

Somehow mimics the OpenGL glVertexPointer() function.

Implemented in osg::TemplatePrimitiveFunctor< T >, osgUtil::Statistics, and osg::TriangleFunctor< T >.

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The documentation for this class was generated from the following file:

• osg/PrimitiveSet