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TessPoly Class Reference

Public Methods
	TessPoly ()
int	setWindingRule (GLenum winding_rule)
int	renderContour (double obj_data[][6], GLuint num_vertices)
int	beginPolygon (void)
int	endPolygon (void)
int	beginContour (void)
int	endContour (void)
int	end (void)
Private Attributes
GLUtesselator *	tobj
	the tessellation object

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Detailed Description

Tesselates faces, using glu

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Constructor & Destructor Documentation

TessPoly::TessPoly (    )

Sets up everything for basic tessellation. It creates the tessellation objects and specifies the callback functions. GLU_TESS_BEGIN and GLU_TESS_END are pointed to the OpenGL functions glBegin( ) and glEnd( ), respectively. GLU_TESS_COMBINE is associated with a user-defined function, combineCallback( ), which will be defined later. GLU_TESS_VERTEX is also associated with a user-defined function, vertexCallback, which will also be defined and explained later.

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Member Function Documentation

int TessPoly::beginContour (  void    )

TessPoly::Begin_Contour( ) initializes a new contour of the current polygon.

int TessPoly::beginPolygon (  void    )

TessPoly::Begin_Polygon( ) initializes a new polygon.

int TessPoly::end (  void    )

TessPoly::End( ) deletes the tessellation object.

int TessPoly::endContour (  void    )

TessPoly::End_Contour( ) ends the current contour.

int TessPoly::endPolygon (  void    )

TessPoly::End_Polygon( ) ends a polygon.

int TessPoly::renderContour (  double    obj_data[][6], GLuint    num_vertices )

TessPoly::Render_Contour( ) renders a full contour of a polygon. obj_data refers to the array that contains all the vertex data for the contour. For what we need, the vertex data will include the vertex coordinate and color value. num_vertices is the number of vertices for the contour.

int TessPoly::setWindingRule (  GLenum    winding_rule )

TessPoly::Set_Winding_Rule( ) simply sets the winding rule to the value of winding_rule for the current polygon.

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Field Documentation

GLUtesselator* TessPoly::tobj [private]

the tessellation object

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

• tesspoly.h
• tesspoly.cpp

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