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/*
* csg.h
*
* Copyright (C) 1989, 1991, Craig E. Kolb
* All rights reserved.
*
* This software may be freely copied, modified, and redistributed
* provided that this copyright notice is preserved on all copies.
*
* You may not distribute this software, in whole or in part, as part of
* any commercial product without the express consent of the authors.
*
* There is no warranty or other guarantee of fitness of this software
* for any purpose. It is provided solely "as is".
*
* $Id$
*
* $Log$
*/
#ifndef CSG_H
#define CSG_H
#define ObjCsgCreate(t) ObjCreate((ObjRef)CsgCreate(t), CsgMethods())
/*
* CSG (Constructive Solid Geometry)
*/
#define CSG_UNION 0
#define CSG_INTERSECT 1
#define CSG_DIFFERENCE 2
typedef struct Csg {
char operator; /* Union, Intersect, or Difference */
struct Object *obj1, *obj2;
int (*intmeth)(); /* Intersection method. */
Float bounds[2][3];
} Csg;
extern char *CsgName();
extern Csg *CsgCreate();
extern int CsgIntersect(), CsgConvert();
extern void CsgBounds();
extern int FirstCsgObj();
extern Methods *CsgMethods();
#endif /* CSG_H */
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