Region Generation Functions

:Associate with "Region Generation Functions" More...

Functions
int	ComputeHomerange (DPOINT2D **Points, INT32 NumPoints, DPOLYGON **Dpolys, INT32 *NumDpolys, POLYFITPARM *pfparm)
int	MregionFromBasin (const RVC::OBJITEM &SrcRastObjItem, const RVC::OBJITEM &SrcVectObjItem, int NumElemTypes, RGNELEMLIST *ElemList, REGION2D &region)
int	MregionFromBufferZone (const RVC::OBJITEM &SrcObjItem, int NumElemTypes, RGNELEMLIST *ElemList, DOUBLE PointDistance, DOUBLE LineDistance, DOUBLE PolyDistance, int Unit, bool side, REGION2D &region)
ERRVALUE	MregionFromCluster (const RVC::OBJITEM &SrcGeomObjItem, RGNELEMLIST *ElemList, int NumElemTypes, CLASSIFY_PARM *clparm, REGION2D &region)
int	MregionFromPolygonFit (const RVC::OBJITEM &SrcGeomObjItem, RGNELEMLIST *bitarray, int NumPoints, POLYFITPARM *pfparm, REGION2D &region)
int	MregionFromTextureGrowth (int rhandle, int vhandle, int NumElemTypes, RGNELEMLIST *ElemList, DOUBLE numSD, INT32 Around, REGION2D &region, UINT32 ProcessType)
ERRVALUE	MregionFromVoronoi (const RVC::OBJITEM &SrcGeomObjItem, RGNELEMLIST *ElemList, int NumElemTypes, DOUBLE ExtFactor, REGION2D &region)
void	MregionInitPolygonFit (POLYFITPARM *pfparm, UINT32 method)

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Detailed Description

:Associate with "Region Generation Functions"

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Function Documentation

int ComputeHomerange	(	DPOINT2D **	Points,
		INT32	NumPoints,
		DPOLYGON **	Dpolys,
		INT32 *	NumDpolys,
		POLYFITPARM *	pfparm
	)

Compute region from set of points using polygon fitting.

int MregionFromBasin	(	const RVC::OBJITEM &	SrcRastObjItem,
		const RVC::OBJITEM &	SrcVectObjItem,
		int	NumElemTypes,
		RGNELEMLIST *	ElemList,
		REGION2D &	region
	)

Create a region from basin.

int MregionFromBufferZone	(	const RVC::OBJITEM &	SrcObjItem,
		int	NumElemTypes,
		RGNELEMLIST *	ElemList,
		DOUBLE	PointDistance,
		DOUBLE	LineDistance,
		DOUBLE	PolyDistance,
		int	Unit,
		bool	side,
		REGION2D &	region
	)

Create a region from buffer zone.

ERRVALUE MregionFromCluster	(	const RVC::OBJITEM &	SrcGeomObjItem,
		RGNELEMLIST *	ElemList,
		int	NumElemTypes,
		CLASSIFY_PARM *	clparm,
		REGION2D &	region
	)

Create a region from a cluster.

Parameters:

NumElemTypes

Number of element types

int MregionFromPolygonFit	(	const RVC::OBJITEM &	SrcGeomObjItem,
		RGNELEMLIST *	bitarray,
		int	NumPoints,
		POLYFITPARM *	pfparm,
		REGION2D &	region
	)

Generate a region from a polygon fit of selected points.

Returns:

1 if one or more regions generated, 0 if no regions generated, error code if < 0.

Polygon fit methods:

• RGNPFIT_MINPOLY
• RGNPFIT_HARMON
• RGNPFIT_FOURIER
• RGNPFIT_TESSEL

Parameters:

bitarray	Selected points to generate polygon around
NumPoints	Number of points that the array covers
pfparm	Polygon fit parameter structure

int MregionFromTextureGrowth	(	int	rhandle,
		int	vhandle,
		int	NumElemTypes,
		RGNELEMLIST *	ElemList,
		DOUBLE	numSD,
		INT32	Around,
		REGION2D &	region,
		UINT32	ProcessType
	)

Create a region by raster texture growing.

ERRVALUE MregionFromVoronoi	(	const RVC::OBJITEM &	SrcGeomObjItem,
		RGNELEMLIST *	ElemList,
		int	NumElemTypes,
		DOUBLE	ExtFactor,
		REGION2D &	region
	)

Create a region from Voronoi diagram.

Parameters:

NumElemTypes	Number of element types
region	Region returned

void MregionInitPolygonFit	(	POLYFITPARM *	pfparm,
		UINT32	method
	)

Initialize parameters to defaults for polygon fitting.

See MregionFromPolygonFit() for details on POLYFITPARM and methods.

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