src/common/tmesh.h

/* RCSid $Id: tmesh.h,v 2.4 2003/06/06 16:38:47 schorsch Exp $ */
/*
 * Header file for triangle mesh routines using barycentric coordinates
 */
#ifndef _RAD_TMESH_H_
#define _RAD_TMESH_H_
#ifdef __cplusplus
extern "C" {
#endif


#define TCALNAME        "tmesh.cal"     /* the name of our auxiliary file */

typedef struct {
        int     ax;             /* major axis */
        RREAL   tm[2][3];       /* transformation */
} BARYCCM;

#ifndef COSTOL
#define COSTOL          0.999995        /* cosine of tolerance for smoothing */
#endif

                                /* flat_tri() return values */
#define ISBENT          0               /* is not flat */
#define ISFLAT          1               /* is flat */
#define RVBENT          2               /* reversed and not flat */
#define RVFLAT          3               /* reversed and flat */
#define DEGEN           -1              /* degenerate (zero area) */


int             flat_tri(FVECT v1, FVECT v2, FVECT v3,
                                FVECT n1, FVECT n2, FVECT n3);
int             comp_baryc(BARYCCM *bcm,  FVECT v1, FVECT v2, FVECT v3);
void            eval_baryc(RREAL wt[3], FVECT p, BARYCCM *bcm);
int             get_baryc(RREAL wt[3], FVECT p, FVECT v1, FVECT v2, FVECT v3);
void            put_baryc(BARYCCM *bcm, RREAL com[][3], int n);


#ifdef __cplusplus
}
#endif
#endif /* _RAD_TMESH_H_ */

Revision:	2.5
Committed:	Thu Jun 26 00:58:09 2003 UTC (20 years, 10 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R2, rad4R2P2, rad5R0, rad5R1, rad3R7P2, rad3R7P1, rad4R2, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad5R3
Changes since 2.4:	+6 -5 lines
Log Message:	Abstracted process and path handling for Windows. Renamed FLOAT to RREAL because of conflict on Windows. Added conditional compiles for some signal handlers.
#	User	Rev	Content
1	schorsch	2.5	/* RCSid $Id: tmesh.h,v 2.4 2003/06/06 16:38:47 schorsch Exp $ */
2	greg	2.1	/*
3			* Header file for triangle mesh routines using barycentric coordinates
4			*/
5	schorsch	2.4	#ifndef _RAD_TMESH_H_
6			#define _RAD_TMESH_H_
7			#ifdef __cplusplus
8			extern "C" {
9			#endif
10	greg	2.1
11	schorsch	2.5
12	greg	2.1	#define TCALNAME "tmesh.cal" /* the name of our auxiliary file */
13
14			typedef struct {
15			int ax; /* major axis */
16	schorsch	2.5	RREAL tm[2][3]; /* transformation */
17	greg	2.1	} BARYCCM;
18
19			#ifndef COSTOL
20	greg	2.3	#define COSTOL 0.999995 /* cosine of tolerance for smoothing */
21	greg	2.1	#endif
22
23			/* flat_tri() return values */
24			#define ISBENT 0 /* is not flat */
25			#define ISFLAT 1 /* is flat */
26			#define RVBENT 2 /* reversed and not flat */
27			#define RVFLAT 3 /* reversed and flat */
28			#define DEGEN -1 /* degenerate (zero area) */
29	greg	2.2
30
31			int flat_tri(FVECT v1, FVECT v2, FVECT v3,
32			FVECT n1, FVECT n2, FVECT n3);
33			int comp_baryc(BARYCCM *bcm, FVECT v1, FVECT v2, FVECT v3);
34	schorsch	2.5	void eval_baryc(RREAL wt[3], FVECT p, BARYCCM *bcm);
35			int get_baryc(RREAL wt[3], FVECT p, FVECT v1, FVECT v2, FVECT v3);
36			void put_baryc(BARYCCM *bcm, RREAL com[][3], int n);
37	greg	2.2
38	schorsch	2.4
39			#ifdef __cplusplus
40			}
41			#endif
42			#endif /* _RAD_TMESH_H_ */
43