NURBSPointSurface Class Reference

#include <surf_api.h>

Inheritance diagram for NURBSPointSurface:

Public Member Functions
DllExport	NURBSPointSurface (void)
virtual DllExport	~NURBSPointSurface (void)
DllExport NURBSPointSurface &	operator= (const NURBSPointSurface &surf)
DllExport void	CloseInU (void)
DllExport void	CloseInV (void)
DllExport void	SetNumPts (int u, int v)
DllExport int	GetNumUPts (void)
DllExport int	GetNumVPts (void)
DllExport void	GetNumPts (int &u, int &v)
DllExport NURBSIndependentPoint *	GetPoint (int u, int v)
DllExport void	SetPoint (int u, int v, NURBSIndependentPoint &pt)
DllExport void	SetTransformMatrix (TimeValue t, SetXFormPacket &mat)
DllExport Matrix3	GetTransformMatrix (TimeValue t)
DllExport void	Refine (TimeValue t, double u, double v, int U_V_Both)
Public Member Functions inherited from NURBSSurface
void *	GetSurfCache ()
const void *	GetSurfCache () const
void	SetSurfCache (void *pCache)
DllExport	NURBSSurface (void)
virtual DllExport	~NURBSSurface (void)
DllExport NURBSSurface &	operator= (const NURBSSurface &surf)
DllExport BOOL	Renderable ()
DllExport void	Renderable (BOOL state)
DllExport BOOL	FlipNormals ()
DllExport void	FlipNormals (BOOL state)
DllExport BOOL	GenerateUVs (int channel=0)
DllExport void	SetGenerateUVs (BOOL state, int channel=0)
DllExport int	MatID ()
DllExport void	MatID (int id)
DllExport Point2	GetTextureUVs (TimeValue t, int i, int channel=0)
DllExport void	SetTextureUVs (TimeValue t, int i, Point2 pt, int channel=0)
DllExport void	GetTileOffset (TimeValue t, float &ut, float &vt, float &uo, float &vo, float &a, int channel=0)
DllExport void	SetTileOffset (TimeValue t, float ut, float vt, float uo, float vo, float a, int channel=0)
DllExport NURBSTextureSurface &	GetTextureSurface (int channel)
DllExport void	SetTextureSurface (int channel, NURBSTextureSurface &texSurf)
DllExport int	NumChannels ()
DllExport int	GetChannelFromIndex (int index)
DllExport BOOL	IsClosedInU (void)
DllExport BOOL	IsClosedInV (void)
DllExport BOOL	Evaluate (TimeValue t, double u, double v, Point3 &pt, Point3 &dPdU, Point3 &dPdV) const
DllExport BOOL	Evaluate (TimeValue t, double u, double v, Point3 &pt, Point3 &dPdU, Point3 &dPdV, Point3 &d2PdU2, Point3 &d2PdV2, Point3 &d2PdUdV) const
DllExport void	GetParameterRange (TimeValue t, double &uMin, double &uMax, double &vMin, double &vMax) const
DllExport BOOL	GetNURBSData (TimeValue t, int &degreeInU, int &degreeInV, int &numInU, int &numInV, NURBSCVTab &cvs, int &numKnotsInU, int &numKnotsInV, NURBSKnotTab &uKnots, NURBSKnotTab &vKnots)
DllExport BOOL	GetCLPTextureSurfaceData (TimeValue t, int channel, int &degreeInU, int &degreeInV, int &numInU, int &numInV, NURBSCVTab &cvs, int &numKnotsInU, int &numKnotsInV, NURBSKnotTab &uKnots, NURBSKnotTab &vKnots)
DllExport int	NumTrimLoops (TimeValue t)
DllExport int	NumCurvesInLoop (TimeValue t, int loop)
DllExport BOOL	Get2dTrimCurveData (TimeValue t, int loop, int curve, int &degree, int &numCVs, NURBSCVTab &cvs, int &numKnots, NURBSKnotTab &knots)
DllExport BOOL	Get3dTrimCurveData (TimeValue t, int loop, int curve, int &degree, int &numCVs, NURBSCVTab &cvs, int &numKnots, NURBSKnotTab &knots)
DllExport TessApprox *	GetProdTess (NURBSTessType type=kNTessSurface)
DllExport TessApprox *	GetViewTess (NURBSTessType type=kNTessSurface)
DllExport void	SetProdTess (TessApprox &tess, NURBSTessType type=kNTessSurface)
DllExport void	SetViewTess (TessApprox &tess, NURBSTessType type=kNTessSurface)
DllExport void	ClearViewTess (NURBSTessType type=kNTessSurface)
DllExport void	ClearProdTess (NURBSTessType type=kNTessSurface)
Public Member Functions inherited from NURBSObject
DllExport	NURBSObject (void)
virtual DllExport	~NURBSObject (void)
DllExport NURBSObject &	operator= (const NURBSObject &pt)
DllExport void	SetName (const MCHAR *name)
DllExport const MCHAR *	GetName (void)
DllExport NURBSType	GetType () const
DllExport NURBSKind	GetKind () const
DllExport NURBSId	GetId () const
DllExport void	SetId (NURBSId id)
DllExport void	SetNSet (NURBSSet *nset)
DllExport void	SetObject (Object *object)
DllExport Object *	GetMAXObject ()
DllExport NURBSSet *	GetNSet ()
DllExport int	GetIndex ()
DllExport BOOL	IsSelected ()
DllExport void	SetSelected (BOOL set)

Friends
class	NURBSSet

Additional Inherited Members
Static Public Member Functions inherited from MaxHeapOperators
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static UtilExport void	aligned_free (void *ptr)
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Protected Member Functions inherited from NURBSObject
DllExport void	Clean (NURBSIdTab ids)
Protected Attributes inherited from NURBSSurface
NURBSTextureChannelSet	mTextureChannelSet
BOOL	mFlipNormals
BOOL	mRenderable
int	mMatID
BOOL	mClosedInU
BOOL	mClosedInV
TessApprox *	mpVTess
TessApprox *	mpRTess
TessApprox *	mpRTessDisp
TessApprox *	mpVTessCurve
TessApprox *	mpRTessCurve
void *	mpSurfCache
Protected Attributes inherited from NURBSObject
MCHAR	mName [NURBS_NAME_SIZE]
NURBSType	mType
NURBSKind	mKind
NURBSId	mId
Object *	mpObject
NURBSSet *	mpNSet
BOOL	mSelected

Detailed Description

See also

Class NURBSSurface, Class NURBSIndependentPoint.

Description:

This class defines a surface that uses points to describe its shape. This class has methods to close the surface in U and V, set the number of points in U and V, and get/set the points in U and V. There is also a method to add additional points to the surface. The point surface has a transformation matrix used to set the relative position of the surface in a NURBSSet.

All methods of this class are implemented by the system.

Constructor & Destructor Documentation

NURBSPointSurface()

DllExport NURBSPointSurface

(

void

)

Remarks

Constructor. The data members are initialized as follows:

mType = kNPointSurface;

mClosedInU = FALSE;

mClosedInV = FALSE;

mpPts = NULL;

~NURBSPointSurface()

virtual DllExport ~NURBSPointSurface ( void  )

virtual

Remarks

Destructor. Any allocated points are deleted.

Member Function Documentation

operator=()

DllExport NURBSPointSurface& operator=

(

const NURBSPointSurface &

surf

)

Remarks

Assignment operator.

Parameters:

const NURBSPointSurface& surf

The surface to assign.

CloseInU()

DllExport void CloseInU

(

void

)

Remarks

This method closes the surface in the U direction.

CloseInV()

DllExport void CloseInV

(

void

)

Remarks

This method closes the surface in the V direction.

SetNumPts()

DllExport void SetNumPts	(	int	u,
		int	v
	)

Remarks

Sets the number of points in the surface in the U and V directions. Any previously allocated points are not maintained when the new number is set. Note, if any of the u and v parameters are 1 or less, the method will return and do nothing.

Parameters

u	The number of points in U. Valid values are 2 and higher.
v	The number of points in V. Valid values are 2 and higher.

GetNumUPts()

DllExport int GetNumUPts

(

void

)

Remarks

Returns the number of points in the U direction.

GetNumVPts()

DllExport int GetNumVPts

(

void

)

Remarks

Returns the number of points in the V direction.

GetNumPts()

DllExport void GetNumPts	(	int &	u,
		int &	v
	)

Remarks

Retrieves the number of points in both the U and V directions.

Parameters:

int &u

The number in U is stored here.

int &v

The number in V is stored here.

GetPoint()

DllExport NURBSIndependentPoint* GetPoint	(	int	u,
		int	v
	)

Remarks

Returns a pointer to the specified point in the surface.

Parameters:

int u

The zero based index of the point in the U direction.

int v

The zero based index of the point in the V direction.

SetPoint()

DllExport void SetPoint	(	int	u,
		int	v,
		NURBSIndependentPoint &	pt
	)

Remarks

Sets the specified point in the surface to the point passed.

Parameters:

int u

The zero based index of the point in the U direction.

int v

The zero based index of the point in the V direction.

NURBSIndependentPoint& pt

The point to set.

SetTransformMatrix()

DllExport void SetTransformMatrix	(	TimeValue	t,
		SetXFormPacket &	mat
	)

Remarks

Sets the transformation matrix for the NURBSPointSurface. This controls the relative position of the surface within a NURBSSet.

Parameters:

TimeValue t

The time at which to set the matrix.

SetXFormPacket& xPack

An instance of the XFormPacket class that describes the properties of the transformation. See Class SetXFormPacket.

GetTransformMatrix()

DllExport Matrix3 GetTransformMatrix

(

TimeValue

t

)

Remarks

Returns the transformation matrix of the NURBSPointSurface at the specified time.

Parameters:

TimeValue t

The time at which to retrieve the matrix.

Refine()

DllExport void Refine	(	TimeValue	t,
		double	u,
		double	v,
		int	U_V_Both
	)

Remarks

This method adds a new point at the specified location on the surface without changing the shape of the surface. The location may be specified as a U value or a V value, or both.

If you refine in U (U_V_Both = 0) you must specify v

If you refine in V (U_V_Both = 1) you must specify u

If you refine in U and V (U_V_Both = -1) you must specify u and v

Parameters:

TimeValue t

The time at which to refine the surface.

double u

The location for the point in U space (range 0.0 to 1.0).

double v

The location for the point in V space (range 0.0 to 1.0).

int U_V_Both

This value must be 0, 1 or -1.

If 0 the refinement is done in u (and v is specified).

If 1 the refinement is done in v (and u is specified).

If -1 the refinement is done in both u and v (and both u and v must be specified).

Operators:

Friends And Related Function Documentation

NURBSSet

friend class NURBSSet

friend