PLib::HNurbsSurfaceSP< T, N > Class Template Reference

A NURBS surface with surface point. More...

#include <hnurbsS_sp.h>

Inheritance diagram for PLib::HNurbsSurfaceSP< T, N >:

List of all members.

Public Member Functions
	HNurbsSurfaceSP (const NurbsSurface< T, N > &S)
	HNurbsSurfaceSP (const HNurbsSurface< T, N > &S)
	HNurbsSurfaceSP (const HNurbsSurfaceSP< T, N > &S)
	HNurbsSurfaceSP (HNurbsSurface< T, N > *base)
	HNurbsSurfaceSP (HNurbsSurface< T, N > *base, const Vector< T > &xU, const Vector< T > &xV)
	HNurbsSurfaceSP (HNurbsSurface< T, N > *base, const HNurbsSurface< T, N > &surf)
virtual void	resizeKeep (int Pu, int Pv, int DegU, int DegV)
virtual void	refineKnots (const Vector< T > &nU, const Vector< T > &nV)
virtual void	refineKnotU (const Vector< T > &X)
virtual void	refineKnotV (const Vector< T > &X)
virtual void	mergeKnots (const Vector< T > &nU, const Vector< T > &nV)
virtual void	mergeKnotU (const Vector< T > &X)
virtual void	mergeKnotV (const Vector< T > &X)
virtual void	updateSurface (int i0=-1, int j0=-1)
virtual void	updateLevels (int updateLevel=-1)
virtual HNurbsSurfaceSP< T, N > *	addLevel (int nsplit, int s=1)
virtual HNurbsSurfaceSP< T, N > *	addLevel ()
virtual void	copy (const HNurbsSurface< T, N > &nS)
virtual int	read (ifstream &fin)
void	modSurfCPby (int i, int j, const HPoint_nD< T, N > &a)
void	modOnlySurfCPby (int i, int j, const HPoint_nD< T, N > &a)
T	maxAtUV (int i, int j) const
T	maxAtU (int i) const
T	maxAtV (int i) const
HPoint_nD< T, N >	surfP (int i, int j) const
HPoint_nD< T, N >	surfP (int i, int j, int lod) const
void	updateMaxUV ()
void	updateMaxU ()
void	updateMaxV ()
int	okMax ()
Protected Attributes
Vector< T >	maxU
Vector< T >	maxV
Vector< T >	maxAtU_
Vector< T >	maxAtV_

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Detailed Description

template<class T, int N>
class PLib::HNurbsSurfaceSP< T, N >

A NURBS surface with surface point.

A Nurbs surface with surface point manipulators. This allows someone to modify the point on a surface for which a control point has maximal influence over it. This might provide a more intuitive method to modify a surface.

Author:

Philippe Lavoie

Date:

14 May, 1998

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Member Function Documentation

template<class T, int N> HNurbsSurfaceSP< T, N > * PLib::HNurbsSurfaceSP< T, N >::addLevel (   )  [virtual]

Adds a level to this HNURBS surface. Parameters: n  the number of new knots between each knots. Returns: a pointer to the new level or 0 if there was an error. Warning: returns 0, if there is already a nextlevel. Author: Philippe Lavoie Date: 14 May 1998 Reimplemented from PLib::HNurbsSurface< T, N >. Reimplemented in PLib::HNurbsSurfaceGL.

template<class T, int N> HNurbsSurfaceSP< T, N > * PLib::HNurbsSurfaceSP< T, N >::addLevel (  int  n, int  s = 1 )  [virtual]

Adds a level to this HNURBS surface. Parameters: n  the number of new knots between each knots. s  the multiplicity of each of these knots Returns: a pointer to the new level or 0 if there was an error. Warning: returns 0, if there is already a nextlevel. Author: Philippe Lavoie Date: 14 May 1998

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::copy (  const HNurbsSurface< T, N > &  nS  )  [virtual]

Copies a HNurbs Surface and all it children. Parameters: ns  the HNurbs surface to copy Author: Philippe Lavoie Date: 14 May 1998 Reimplemented from PLib::HNurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::mergeKnots (  const Vector< T > &  nU, const Vector< T > &  nV )  [inline, virtual]

merges a U and V knot vector with the surface knot vectors Parameters: nU  the U knot vector to merge with nV  the V knot vector to merge with Warning: The nU and nV knot vectors must be compatible with the current vectors Author: Philippe Lavoie Date: 24 January, 1997 Reimplemented from PLib::NurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::mergeKnotU (  const Vector< T > &  X  )  [inline, virtual]

merges the U knot vector with another one Parameters: X  a knot vector Warning: The knot vector must be compatible with the U knot vector Author: Philippe Lavoie Date: 24 January, 1997 Reimplemented from PLib::NurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::mergeKnotV (  const Vector< T > &  X  )  [inline, virtual]

merges the V knot vector with another one Parameters: X  a knot vector Warning: The knot vector must be compatible with the V knot vector Author: Philippe Lavoie Date: 24 January, 1997 Reimplemented from PLib::NurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::modOnlySurfCPby (  int  i, int  j, const HPoint_nD< T, N > &  a )

Moves the surface point only. Moves only the specified surface point. The other surface points normally affected by moving this point are {not} moved. The point a is in the 4D homogenous space, but only the x,y,z value are used. The weight is not moved by this function. Parameters: i  the row of the surface point to move j  the column of the surface point to move a  move that surface point by that amount. Warning: The degree of the curve must be of 3 or less. Author: Philippe Lavoie Date: 7 June, 1998

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::modSurfCPby (  int  i, int  j, const HPoint_nD< T, N > &  a )

Modifies the surface point by a certain value. Parameters: i  the row of the surface point j  the column of the surface point a  modify the surface point by this value Warning: The degree in U and V of the surface must be of 3 or less. Author: Philippe Lavoie Date: 14 May, 1998

template<class T, int N> int PLib::HNurbsSurfaceSP< T, N >::read (  ifstream &  fin  )  [virtual]

Read a HNURBS surface from an input file stream. Parameters: fin  the input file stream Returns: 0 if an error occurs, 1 otherwise Author: Philippe Lavoie Date: 7 October 1997 Reimplemented from PLib::HNurbsSurface< T, N >. Reimplemented in PLib::HNurbsSurfaceGL.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::refineKnots (  const Vector< T > &  nU, const Vector< T > &  nV )  [inline, virtual]

Refine both knot vectors. Parameters: nU  the U knot vector to refine from nV  the V knot vector to refine from Author: Philippe Lavoie Date: 24 January, 1997 Reimplemented from PLib::HNurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::refineKnotU (  const Vector< T > &  X  )  [inline, virtual]

Refines the U knot vector. Parameters: X  the knot vector to refine from Author: Philippe Lavoie Date: 24 January, 1997 Reimplemented from PLib::HNurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::refineKnotV (  const Vector< T > &  X  )  [inline, virtual]

Refines the V knot vector. Parameters: X  the knot vector to refine from Author: Philippe Lavoie Date: 24 January, 1997 Reimplemented from PLib::HNurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::resizeKeep (  int  Pu, int  Pv, int  DegU, int  DegV )  [inline, virtual]

Resize the surface while keeping the old values. Parameters: Pu  the number of control points in the U direction Pv  the number of control points in the V direction DegU  the degree of the surface in the U direction DegV  the degree of the surface in the V direction Author: Philippe Lavoie Date: 24 January, 1997 Reimplemented from PLib::NurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::updateLevels (  int  upLevel = -1  )  [virtual]

Update the surface for all the levels. Parameters: upLevel  updates the levels up to this level of detail Author: Philippe Lavoie Date: 7 October 1997 Reimplemented from PLib::HNurbsSurface< T, N >.

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::updateMaxU (   )

Updates the basis value in the U direction. Updates the basis value at which a control point has maximal influence. It also finds where the control point has maximal influence. Warning: The degrre in U of the surface must be of 3 or less. Author: Philippe Lavoie Date: 14 May, 1998

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::updateMaxV (   )

Updates the basis value in the V direction. Updates the basis value at which a control point has maximal influence. It also finds where the control point has maximal influence. Warning: The degrre in V of the surface must be of 3 or less. Author: Philippe Lavoie Date: 14 May, 1998

template<class T, int N> void PLib::HNurbsSurfaceSP< T, N >::updateSurface (  int  i0 = -1, int  j0 = -1 )  [virtual]

Updates the NURBS surface. Updates the NURBS surface according to the offset values and its base level. You can update only one control point from the surface if you specify a value for i and j or you can update all the points if i0 or j0 is below 0. Parameters: i0  the row of the control point to update j0  the column of the control point to update Author: Philippe Lavoie Date: 7 October 1997 Reimplemented from PLib::HNurbsSurface< T, N >.

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

• hnurbsS_sp.h
• hnurbsS_sp.cpp

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