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PLib::NurbsCurveGL Class Reference

A NURBS curve class with OpenGL interface. More...

#include <nurbsGL.h>

Inheritance diagram for PLib::NurbsCurveGL:

List of all members.

Public Methods
	NurbsCurveGL ()
	NurbsCurveGL (const NurbsCurvef &nurb)
	NurbsCurveGL (const NurbsCurveGL &nurb)
	NurbsCurveGL (const Vector< HPoint3Df > &P1, const Vector< float > &U1, int degree=3)
	NurbsCurveGL (const Vector< Point3Df > &P1, const Vector< float > &W, const Vector< float > &U1, int degree=3)
void	gluNurbs () const
void	point (float &u, float &v, int pSize, const Color &colorP, int cp_flag=0) const
NurbsCurveGL &	operator= (const NurbsCurveGL &a)
NurbsCurveGL &	operator= (const NurbsCurvef &a)
void	resetBoundingBox ()
void	resetCPoints ()
void	resetPolygon ()
void	resetKnots ()
ObjectGL *	copy ()
int	read (ifstream &fin)
int	write (ofstream &fout) const
void	applyTransform ()
void	modifyPoint (float u, float v, float dx, float dy, float dz)
void	setSym (int set, int uDir, float x, float y, float z, float w)

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Detailed Description

A NURBS curve class with OpenGL interface.

Author:

Philippe Lavoie

Date:

23 September 1997

Definition at line 833 of file nurbsGL.h.

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Member Function Documentation

void PLib::NurbsCurveGL::applyTransform (    )  [virtual]

apply the local transformation to the curve. Apply the local transformation to the curve. This is necessary if you want to get the proper position for the control points before doing anymore processing on them. Author: Philippe Lavoie Date: 23 September 1997 Reimplemented from PLib::ObjectGL. Definition at line 1691 of file nurbsGL.cpp. References PLib::MatrixRT::scale, and PLib::NurbsCurve< float, N >::transform.

void PLib::NurbsCurveGL::gluNurbs (    )  const [virtual]

creates a nurbs curve for OpenGL. This function calls between a gluBeginCurve/gluEndCurve the proper functions to generate a NURBS curve. Author: Philippe Lavoie Date: 23 September 1997 Implements PLib::NurbsGL. Definition at line 1602 of file nurbsGL.cpp.

void PLib::NurbsCurveGL::modifyPoint (  float    u, float    v, float    dx, float    dy, float    dz )  [virtual]

Modifies a point on the curve. Parameters: u  the u parametric value v  the v parametric value dx  the delta value in the $x$-axis direction dy  the delta value in the $y$-axis direction dz  the delta value in the $z$-axis direction Author: Philippe Lavoie Date: 7 November 1997 Implements PLib::NurbsGL. Definition at line 3014 of file nurbsGL.cpp.

NurbsCurveGL & PLib::NurbsCurveGL::operator= (  const NurbsCurvef &    a )

Copies another Nurbs Curve GL. Parameters: a  the Nurbs curve to copy Author: Philippe Lavoie Date: 6 November 1997 Definition at line 2969 of file nurbsGL.cpp.

NurbsCurveGL & PLib::NurbsCurveGL::operator= (  const NurbsCurveGL &    a )

Copies another Nurbs Curve GL. Parameters: a  the Nurbs curve to copy Author: Philippe Lavoie Date: 6 November 1997 Definition at line 2954 of file nurbsGL.cpp.

void PLib::NurbsCurveGL::point (  float &    u, float &    v, int    pSize, const Color &    colorP, int    cp_flag = 0 )  const [virtual]

draws a point at the location C(u). This function calls between a glBegin/glEnd the proper functions to represent the point which is at C(u) on the curve. Parameters: u  the parametric value v  a dummy variable so the call is the same as with a NURBS surface. psize  the size of the control points colorP  the color of the control points Author: Philippe Lavoie Date: 23 September 1997 Implements PLib::NurbsGL. Definition at line 2068 of file nurbsGL.cpp. References PLib::NurbsCurve< float, N >::hpointAt.

int PLib::NurbsCurveGL::read (  ifstream &    fin )  [virtual]

Reads the information from a stream. Parameters: fin  the input stream Returns: 1 on sucess, 0 on failure Author: Philippe Lavoie Date: 19 June 1998 Reimplemented from PLib::NurbsCurveSP< float, 3 >. Definition at line 3710 of file nurbsGL.cpp. References PLib::ObjectGL::setName.

void PLib::NurbsCurveGL::resetBoundingBox (    )  [virtual]

resets the minP and maxP values of bbox. Resets the minP and maxP values for the bouding box. Warning: Calling this function without a proper curve initialized might result in strange results. Author: Philippe Lavoie Date: 23 September 1997 Reimplemented from PLib::NurbsGL. Definition at line 1543 of file nurbsGL.cpp. References PLib::ParaCurve< float, N >::extremum.

void PLib::NurbsCurveGL::resetCPoints (    )  [virtual]

reset the control point information. Reset the control points information stored in cpoints. Author: Philippe Lavoie Date: 23 September 1997 Reimplemented from PLib::NurbsGL. Definition at line 1790 of file nurbsGL.cpp.

void PLib::NurbsCurveGL::resetKnots (    )  [virtual]

Reset the knots information. Reset the knot information stored in knots. Author: Philippe Lavoie Date: 23 September 1997 Reimplemented from PLib::NurbsGL. Definition at line 1838 of file nurbsGL.cpp. References PLib::ParaCurve< float, N >::pointAt.

int PLib::NurbsCurveGL::write (  ofstream &    fout )  const [virtual]

Writes a NurbsCurveGL to an output stream. Parameters: fout  the output stream Returns: 0 if an error occurs, 1 otherwise Author: Philippe Lavoie Date: 19 June 1998 Reimplemented from PLib::ObjectGL. Definition at line 3782 of file nurbsGL.cpp.

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

• nurbsGL.h
• nurbsGL.cpp

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