#include "maxheap.h"
#include "shphier.h"
#include "spline3d.h"
#include "shpsels.h"
#include "hitdata.h"
#include "TabTypes.h"
#include "GraphicsConstants.h"
#include "Util/CountedObject.h"

Classes
struct	bindShape
	Contains the data for the bind points. More...

class	ShapeSubHitRec

class	SubShapeHitList
	class SubShapeHitList More...

class	ShapeHitData

class	ShapeContextCallback

class	BezierShapeTopology

class	BezierShapeInterface_Ex41
	class BezierShapeInterface_Ex41 : public BaseInterface More...

class	BezierShape
	Defines a basic bezier shape object. More...

Macros
#define	SHAPE_TRIM 0

#define	SHAPE_EXTEND 1

#define	BEZIER_SHAPE_INTERFACE_EX41 Interface_ID(0x23526cd1, 0x695d7e4e)

#define	GET_BEZIER_SHAPE_INTERFACE_EX41() (BezierShapeInterface_Ex41*) GetInterface(BEZIER_SHAPE_INTERFACE_EX41)

Functions
CoreExport bool	BezierShapeFindWeldTarget (ViewExp pVpt, Matrix3 &tm, BezierShape shape, int polyIndex, int knotToCompare, bool allowSelfWeld, bool autoWeld, int &weldToPolyOut, int &weldToKnotOut)
	Find an endpoint weld target in a shape.

CoreExport void	BezierShapeDoPolyLastToFirstWeld (BezierShape *shape, int polyIndex)
	Weld the last knot of a spline to the first knot in the same spline.

Macro Definition Documentation

◆ SHAPE_TRIM

#define SHAPE_TRIM 0

◆ SHAPE_EXTEND

#define SHAPE_EXTEND 1

◆ BEZIER_SHAPE_INTERFACE_EX41

#define BEZIER_SHAPE_INTERFACE_EX41 Interface_ID(0x23526cd1, 0x695d7e4e)

◆ GET_BEZIER_SHAPE_INTERFACE_EX41

#define GET_BEZIER_SHAPE_INTERFACE_EX41 ( ) (BezierShapeInterface_Ex41*) GetInterface(BEZIER_SHAPE_INTERFACE_EX41)

Function Documentation

◆ BezierShapeFindWeldTarget()

CoreExport bool BezierShapeFindWeldTarget	(	ViewExp *	pVpt,
		Matrix3 &	tm,
		BezierShape *	shape,
		int	polyIndex,
		int	knotToCompare,
		bool	allowSelfWeld,
		bool	autoWeld,
		int &	weldToPolyOut,
		int &	weldToKnotOut
	)

Find an endpoint weld target in a shape.

This is designed to work with the 3ds Max insert/create mechanism when it's working with the last knot in the shape being edited. It will use one of two threshold values depending on whether automatic endpoint welding is enabled. Caller has the option to allow the spline being edited to weld to itself (this will always be the knot being edited ('knotToCompare') welding to the first knot in the spline).

If any knots in the shape have endpoints that are appropriate for welding, the function will fill in the 'weldToPolyOut' poly and 'weldToKnotOut' knot indices with non-negative indices of the candidate knot.

Parameters

[in]	pVpt	Pointer to the ViewExp for the viewport being used. This viewport will be used to compute the distance between endpoint knots in screen space, which is used with the auto-weld distance threshold value.
[in]	tm	Transform of the object.
[in]	shape	Pointer to the BezierShape containing the spline being edited and the weld target candidate splines.
[in]	polyIndex	The index of the spline being edited.
[in]	knotToCompare	The index of the knot that will be compared to candidate weld-target knots.
[in]	allowSelfWeld	True if the caller wants to allow the spline being edited to weld 'knotToCompare' to its own first knot.
[in]	autoWeld	true if End Point Auto-Welding is to be used.
[out]	weldToPolyOut	The index of the spline being welded to or -1 if no weld found.
[out]	weldToKnotOut	The index of the knot in the spline being welded to or -1 if no weld found.

Returns: true if a weld candidate was found; false otherwise.

◆ BezierShapeDoPolyLastToFirstWeld()

CoreExport void BezierShapeDoPolyLastToFirstWeld	(	BezierShape *	shape,
		int	polyIndex
	)

Weld the last knot of a spline to the first knot in the same spline.

This function performs last-to-first knot welding in a spline. It shifts the position of the last knot to align with the first knot, including the Bezier vectors, if any, sets the first knot type as needed to preserve the spline's shape and closes the spline.