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sglBezierCurveSet Class Reference

#include <sglBezierCurveSet.hpp>

Inheritance diagram for sglBezierCurveSet::

List of all members.

Public Methods
	sglBezierCurveSet ()
virtual	~sglBezierCurveSet ()
void	setTexCoordBind (BindEnum bind)
BindEnum	getTexCoordBind () const
void	setCoordOrder (GLint order=4)
void	setTexCoordOrder (GLint order=4)
void	setNormalOrder (GLint order=4)
void	setColorOrder (GLint order=4)
GLint	getCoordOrder ()
GLint	getTexCoordOrder ()
GLint	getNormalOrder ()
GLint	getColorOrder ()
void	setRange (float min=0, float max=1.0f)
void	getRange (float &min, float &max)
void	setNumSegments (unsigned int num)
unsigned int	getNumSegments ()
virtual void	drawGeometry (const vector< sglTexCoords > &tex_coords) const
sglStats::PrimEnum	getPrimType () const
GLenum	getGLPrimType () const
unsigned int	getPrimSize () const
AAEnum	getAAType () const
Protected Methods
virtual bool	computeBounds ()
virtual void	updateDrawFunc ()
Protected Attributes
GLint	m_vorder
GLint	m_norder
GLint	m_corder
GLint	m_torder
float	m_min
float	m_max
unsigned int	m_segments
Static Protected Attributes
Map1Func	s_vfunc_table [24]
Map1Func	s_nfunc_table [8]
Map1Func	s_cfunc_table [16]
Map1Func	s_tfunc_table [32]

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Detailed Description

This class encapsulates OpenGL's interface to the bezier curve mechanism. I need Tom to document this one.

Note: The BindEnum's for BezierCurves have different meanings than for other sglGeoSets. \begin{description} \item[sglGeoSet::ePER_VERTEX] A different set of control points are applied to each primitive. This requires order*num_prim control points. \item[sglGeoSet::ePER_PRIM] The same set of control points is applied to each primitive. The range applied is also the same (min-max). This will create the effect of repeating the values on each primitive. This requires order control points. \item[sglGeoSet::eOVERALL] The same set of control points is applied to each primitive. The range is streched, and applied linearly across the primitives. This will have the effect of streching the values across all of the primitives. This requires order control points. \end{description}

{\bf Example:}

\begin{verbatim} sglBezierCurveSet *gset = new sglBezierCurveSet();

sglVec3f *vertex = new sglVec3f[4]; vertex[0].set(-10.0f, 0.0f, -10.0f); vertex[1].set(-08.0f, 7.0f, 10.0f); vertex[2].set( 08.0f, 0.0f, -10.0f); vertex[3].set( 10.0f, 0.0f, 10.0f);

gset->setCoordList(vertex); gset->setCoordOrder(4);

sglVec4f *color = new sglVec4f(1.0f, 0, 0, 1.0f); gset->setColorList(sglGeoSet::eOVERALL, color); gset->setColorOrder(1);

gset->setNumPrims(1); gset->setNumSegments(10); \end{verbatim}

Definition at line 77 of file sglBezierCurveSet.hpp.

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Constructor & Destructor Documentation

sglBezierCurveSet::sglBezierCurveSet ( )

default constructor.

sglBezierCurveSet::~sglBezierCurveSet ( ) [virtual]

virtual destructor.

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Member Function Documentation

void sglBezierCurveSet::setCoordOrder ( GLint order = 4 )

order is the degree of the curve plus one (should == the number of control points/prim)

void sglBezierCurveSet::setRange ( float min = 0, float max = 1.0f )

get/set the range of the parametric value.

void sglBezierCurveSet::setNumSegments ( unsigned int num )

get/set the number of segments to be drawn for each curve.

void sglBezierCurveSet::drawGeometry ( const vector< sglTexCoords > & tex_coords ) const [virtual]

draw the geometry of the bezier curve.

sglStats::PrimEnum sglBezierCurveSet::getPrimType ( ) const [inline, virtual]

retrieve the primitive type. Reimplemented from sglGeoSet. Definition at line 124 of file sglBezierCurveSet.hpp.

virtual bool sglBezierCurveSet::computeBounds ( ) [protected, virtual]

Compute the bounding box for this geometry and fill in the member variable, m_bbox, in this class. Returns: true if successful (all information is available for computing a bounding box), otherwise false. Reimplemented from sglGeoSet.

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

• sglBezierCurveSet.hpp

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