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PLib::HNurbsSurfaceSP Class Template Reference

A NURBS surface with surface point. More...

#include <hnurbsS_sp.h>

Inheritance diagram for PLib::HNurbsSurfaceSP:

PLib::HNurbsSurface PLib::NurbsSurface PLib::ParaSurface List of all members.

Public Methods

 HNurbsSurfaceSP ()
 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_

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

Definition at line 47 of file hnurbsS_sp.h.

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.

Reimplemented in PLib::HNurbsSurfaceGL.

Definition at line 289 of file hnurbsS_sp.cpp.

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

Definition at line 262 of file hnurbsS_sp.cpp.

References PLib::HNurbsSurface::splitUV.

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.

Definition at line 309 of file hnurbsS_sp.cpp.

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.

Definition at line 177 of file hnurbsS_sp.h.

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.

Definition at line 185 of file hnurbsS_sp.h.

References updateMaxU.

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.

Definition at line 193 of file hnurbsS_sp.h.

References updateMaxV.

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

Definition at line 151 of file hnurbsS_sp.cpp.

References PLib::NurbsSurface::degU, PLib::NurbsSurface::degV, PLib::NurbsSurface::P, and updateSurface.

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

Definition at line 115 of file hnurbsS_sp.cpp.

References PLib::NurbsSurface::P.

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.

Reimplemented in PLib::HNurbsSurfaceGL.

Definition at line 441 of file hnurbsS_sp.cpp.

References PLib::NurbsSurface::P, PLib::NurbsSurface::resize, PLib::NurbsSurface::U, updateSurface, and PLib::NurbsSurface::V.

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.

Definition at line 155 of file hnurbsS_sp.h.

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.

Definition at line 162 of file hnurbsS_sp.h.

References updateMaxU.

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.

Definition at line 169 of file hnurbsS_sp.h.

References updateMaxV.

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.

Definition at line 148 of file hnurbsS_sp.h.

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.

Definition at line 412 of file hnurbsS_sp.cpp.

References updateSurface.

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

Definition at line 45 of file hnurbsS_sp.cpp.

References PLib::NurbsSurface::degU, PLib::NurbsSurface::P, and PLib::NurbsSurface::U.

Referenced by mergeKnotU, and refineKnotU.

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

Definition at line 80 of file hnurbsS_sp.cpp.

References PLib::NurbsSurface::degV, PLib::NurbsSurface::P, and PLib::NurbsSurface::V.

Referenced by mergeKnotV, and refineKnotV.

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.

Definition at line 350 of file hnurbsS_sp.cpp.

References PLib::NurbsSurface::degU, PLib::NurbsSurface::degV, PLib::HNurbsSurface::initBase, PLib::NurbsSurface::P, PLib::NurbsSurface::U, and PLib::NurbsSurface::V.

Referenced by modOnlySurfCPby, read, and updateLevels.

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