NURBSBlendCurve Class Reference

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Detailed Description

See also:

Class NURBSCurve.

Description:

This class is available in release 2.0 and later only.

This class defines a dependent blend curve. A blend curve connects the specified end of one curve to the specified end of another, blending the curvature of the parents to create a smooth curve between them. Methods are available to get/set the parent indices and ids, to get/set the ends of the curves used for the blend, and to get/set the tension values used.

All methods of this class are implemented by the system.

#include <surf_api.h>

Inheritance diagram for NURBSBlendCurve:

List of all members.

Public Member Functions
DllExport	NURBSBlendCurve (void)
virtual DllExport	~NURBSBlendCurve (void)
DllExport NURBSBlendCurve &	operator= (const NURBSBlendCurve &curve)
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	SetEnd (int pnum, BOOL end)
DllExport BOOL	GetEnd (int pnum)
DllExport void	SetTension (TimeValue t, int pnum, double ten)
DllExport double	GetTension (TimeValue t, int pnum)
Friends
class	NURBSSet

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Constructor & Destructor Documentation

DllExport NURBSBlendCurve

(

void

)

Remarks:

Constructor. The data members are initialized as follows:

    mType = kNBlendCurve;
    mpObject = NULL;
    mpNSet = NULL;
    for (int i = 0; i < 2; i++)
    {
        mParentId[i] = 0;
        mParentIndex[i] = -1;
        mParentEnd[i] = TRUE;
        mTension[i] = 1.0;
    }

virtual DllExport ~NURBSBlendCurve

(

void

)

[virtual]

Remarks:

Destructor. The cache is cleared.

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Member Function Documentation

DllExport NURBSBlendCurve& operator=

(

const NURBSBlendCurve &

curve

)

Remarks:

Assignment operator.

Parameters:

const NURBSBlendCurve& curve

The curve to assign.

DllExport void SetParent	(	int	pnum,
		int	index
	)

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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 object.

DllExport void SetParentId	(	int	pnum,
		NURBSId	id
	)

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Remarks:

Sets the NURBSId of the specified parent.

Parameters:

int pnum

The parent number: 0 or 1.

NURBSId id

The id to set.

DllExport int GetParent

(

int

pnum

)

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Remarks:

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

Parameters:

int pnum

The parent number: 0 or 1.

DllExport NURBSId GetParentId

(

int

pnum

)

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Remarks:

Returns the NURBSId of the 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.

DllExport void SetEnd	(	int	pnum,
		BOOL	end
	)

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Remarks:

Sets if the beginning or end of the specified curve is used for the blend.

Parameters:

int pnum

The parent number: 0 or 1.

BOOL end

TRUE to use the end of the curve; FALSE to use the beginning. The beginning of the curve has lesser parameter values than the end.

DllExport BOOL GetEnd

(

int

pnum

)

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Remarks:

Indicates if the beginning or end of the specified curve is used for the blend.

Parameters:

int pnum

The parent number: 0 or 1.

Returns:

TRUE if the end of the curve is used; FALSE if the beginning is used.

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

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Remarks:

Sets the tension value for the specified parent curve.

Parameters:

TimeValue t

The time at which to set the tension

int pnum

The parent number: 0 or 1.

double ten

The tension value to set.

DllExport double GetTension	(	TimeValue	t,
		int	pnum
	)

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Remarks:

Returns the tension value for the specified parent curve.

Parameters:

TimeValue t

The time at which to get the tension

int pnum

The parent number: 0 or 1.

Operators:

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Friends And Related Function Documentation

friend class NURBSSet [friend]

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Reimplemented from NURBSObject.