ibgd0.h

有限元学习研究用源代码(老外的),供科研人员参考

/* last edit: Ilja Schmelzer -------------- 17-OCT-1994 13:46:10.37	*/
/************************************************************************/
/*                                                                      */
/*  <<< I B G >>> - Intersection - Based Grid generation package 	*/
/*                                                                      */
/*  Version 1.1 by Ilja Schmelzer   [e-mail]       */
/*                                                                      */
/*  to be distributed under IBG license conditions (see "readme.ibg")	*/
/*                                                                      */
/************************************************************************/
#ifndef IBGD0_H
#define IBGD0_H

#ifndef IBGI_H
#include "ibgi.h"
#endif

#ifndef IBGT_H
#include "ibgt.h"
#endif

typedef struct _ibGeometryClass	ibGeometryClassRec,*ibGeometryClass;

struct _ibGeometry{
		/* pointer to function table */
	ibGeometryClass	Class;
		/* counter of the existent copies of the pointer: */
	int		copy;
		/* required accuracy of boundary computation: */
	ibgFloat	Delta;
/* parameters controlling the default implementations: */
		/* default segment number handling: (ibgiStatus...) */
	ibgTopologyRec	top;
		/* break of possibly infinite cycle in LineWithRectangle: */
	int		LoopBreakRectangle;
		/* break of possibly infinite cycle in NodeInHexahedron: */
	int		LoopBreakHexahedron;
};

typedef  int  	(*ibgdFunctionRegionOfPoint)(ibGeometry g, ibgPoint *nnew, const ibgPoint *nold);

typedef  int	(*ibgdFunctionFaceWithEdge)(ibGeometry g, ibgPoint *point,
			 const ibgPoint *n1, const ibgPoint *n2);
typedef	 int	(*ibgdFunctionLineWithTriangle)(ibGeometry g,
			 ibgPoint *point, const ibgPoint *nface,
		       	 const ibgPoint *n1, const ibgPoint *n2, const ibgPoint *n3);
typedef	int	(*ibgdFunctionNodeInTetrahedron)(ibGeometry g,
			 ibgPoint *point, const ibgPoint *nline,
		       	 const ibgPoint *n1, const ibgPoint *n2, const ibgPoint *n3, const ibgPoint *n4);
struct _ibGeometryClass{
    ibgdFunctionRegionOfPoint         RegionOfPoint;
    ibgdFunctionFaceWithEdge          FaceWithEdge;
    ibgdFunctionLineWithTriangle      LineWithTriangle;
    ibgdFunctionNodeInTetrahedron     NodeInTetrahedron;
	int	(*LineWithRectangle)(ibGeometry g,
			 ibgPoint *point, const ibgPoint *nline,
		       	 const ibgPoint *n1, const ibgPoint *n2, const ibgPoint *n3, const ibgPoint *n4);
	int	(*NodeInHexahedron)(ibGeometry g,
			 ibgPoint *point, const ibgPoint *nline,
		       	 const ibgPoint *n1, const ibgPoint *n2, const ibgPoint *n3, const ibgPoint *n4,
		       	 const ibgPoint *n5, const ibgPoint *n6, const ibgPoint *n7, const ibgPoint *n8);
	int	(*StatusOfEdge)(ibGeometry g,
			 const ibgPoint *n1, const ibgPoint *n2);
	int	(*StatusOfTriangle)(ibGeometry g,
		       	 const ibgPoint *n1, const ibgPoint *n2, const ibgPoint *n3);
	int	(*StatusOfTetrahedron)(ibGeometry g,
		       	 const ibgPoint *n1, const ibgPoint *n2, const ibgPoint *n3, const ibgPoint *n4);
	int	(*Free)  (ibGeometry g);
};


void ibgdInitialize(ibGeometry geom, ibGeometryClass Class);

#endif