NURBSBlendSurface Class Reference

#include <surf_api.h>

Inheritance diagram for NURBSBlendSurface:

Public Member Functions
DllExport	NURBSBlendSurface (void)
virtual DllExport	~NURBSBlendSurface (void)
DllExport NURBSBlendSurface &	operator= (const NURBSBlendSurface &surf)
DllExport void	SetParent (int pnum, int index)
DllExport void	SetParentId (int pnum, NURBSId id)
DllExport int	GetParent (int pnum)
DllExport NURBSId	GetParentId (int pnum)
DllExport void	SetEdge (int pnum, int edge)
DllExport int	GetEdge (int pnum)
DllExport void	SetTension (TimeValue t, int pnum, double ten)
DllExport double	GetTension (TimeValue t, int pnum)
DllExport void	SetFlip (int pnum, BOOL flip)
DllExport BOOL	GetFlip (int pnum)
DllExport void	SetCurveStartPoint (TimeValue t, int pnum, double startpoint)
DllExport double	GetCurveStartPoint (TimeValue t, int pnum)
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)
	Frees a block of memory that was allocated with aligned_malloc/aligned_realloc. More...
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.

Description:

This class defines a dependent blend surface. A blend surface connects the edge of one surface to the edge of another, blending the curvature of the parents to create a smooth surface between them. Methods are available to get/set the parents, parent Ids, tension parameters and surface normal matching state.

All methods of this class are implemented by the system.

Constructor & Destructor Documentation

NURBSBlendSurface()

DllExport NURBSBlendSurface

(

void

)

Remarks

Constructor. The data members are initialized as follows:

mType = kNBlendSurface;
mpObject = NULL;
mpNSet = NULL;
for (int i = 0; i < 2; i++)
{
    mParentId[i] = 0;
    mParentIndex[i] = -1;
    mParentEdge[i] = 0;
    mFlip[i] = FALSE;
    mTension[i] = 1.0;
    mCurveStartParam[i] = 0.0;
}

~NURBSBlendSurface()

virtual DllExport ~NURBSBlendSurface ( void  )

virtual

Remarks

Destructor.

Member Function Documentation

operator=()

DllExport NURBSBlendSurface& operator=

(

const NURBSBlendSurface &

surf

)

Remarks

Assignment operator.

Parameters:

const NURBSBlendSurface& surf

The surface to assign.

SetParent()

DllExport void SetParent	(	int	pnum,
		int	index
	)

Remarks

Sets the index in the NURBSSet of the specified parent object.

Parameters:

int pnum

The parent number: 0 or 1.

int index

The index into the NURBSSet of the parent surface.

SetParentId()

DllExport void SetParentId	(	int	pnum,
		NURBSId	id
	)

Remarks

Sets the NURBSId of the specified parent.

Parameters:

int pnum

The parent number: 0 or 1.

NURBSId id

The id to set.

GetParent()

DllExport int GetParent

(

int

pnum

)

Remarks

Returns the index in the NURBSSet of the specified parent object.

Parameters:

int pnum

The parent number: 0 or 1.

GetParentId()

DllExport NURBSId GetParentId

(

int

pnum

)

Remarks

Returns the NURBSId of the specified parent. Note that a NURBSId won't be valid until the object has been instantiated in the scene.

Parameters:

int pnum

The parent number: 0 or 1.

SetEdge()

DllExport void SetEdge	(	int	pnum,
		int	edge
	)

Remarks

Sets which edge of the specified surface is used for the blend.

Parameters:

int pnum

The parent number: 0 or 1.

int edge

One of the following values:

0: The low U edge.

1: The high U edge.

2: The low V edge.

3: The high V edge.

GetEdge()

DllExport int GetEdge

(

int

pnum

)

Remarks

Returns an integer that determines which edge of the specified surface is used for the blend.

Parameters:

int pnum

The parent number: 0 or 1.

Returns

One of the following values:

0: The low U edge.

1: The high U edge.

2: The low V edge.

3: The high V edge.

SetTension()

DllExport void SetTension	(	TimeValue	t,
		int	pnum,
		double	ten
	)

Remarks

Sets the tension value for the specified parent surface.

Parameters:

TimeValue t

The time at which to set the tension value.

int pnum

The parent number: 0 or 1.

double ten

The tension value to set.

GetTension()

DllExport double GetTension	(	TimeValue	t,
		int	pnum
	)

Remarks

Returns the tension value for the specified parent surface.

Parameters:

TimeValue t

The time at which to return the tension value.

int pnum

The parent number: 0 or 1.

SetFlip()

DllExport void SetFlip	(	int	pnum,
		BOOL	flip
	)

Remarks

This allows one to control the matching of parent surface normals when creating the blend surface. For example, normally when you create a blend surface between two parent surfaces you don't want a 'bow tie' surface (one with the ends rotated 180 degrees so it crosses on itself in the middle). If you simply match the parent normals you'll occasionally get a 'bow tie' surface. To prevent this you use this method to set a state indicating that one or the other should be flipped before it's used. In this way, when the blend is created, a 'bow tie' won't occur.

Parameters:

int pnum

The number of the parent surface: 0 or 1.

BOOL flip

TRUE to match the parent surface normal; FALSE to not match it.

GetFlip()

DllExport BOOL GetFlip

(

int

pnum

)

Remarks

Returns the flip state of the specified parent surface.

Parameters:

int pnum

The number of the parent surface: 0 or 1.

SetCurveStartPoint()

DllExport void SetCurveStartPoint	(	TimeValue	t,
		int	pnum,
		double	startpoint
	)

Remarks

Sets the start point for the specified parent curve. Note: This is only applicable if the parent is a closed curve.

Parameters:

TimeValue t

The time at which to set the start point.

int pnum

The number of the parent surface: 0 or 1.

double startpoint

The start point in the range 0.0 to 1.0.

GetCurveStartPoint()

DllExport double GetCurveStartPoint	(	TimeValue	t,
		int	pnum
	)

Remarks

Returns the start point of the specified parent curve.

Note: This is only applicable if the parent is a closed curve.

Parameters:

TimeValue t

The time at which to get the start point.

int pnum

The number of the parent surface: 0 or 1.

Operators:

Friends And Related Function Documentation

NURBSSet

friend class NURBSSet

friend