#ifndef _RECTREGION_H_53039a06_
#define _RECTREGION_H_53039a06_

typedef struct rectregion RECTREGION;

extern RECTREGION *rrgn_init(void);
extern void rrgn_add1(RECTREGION *, double, double, double, double);
extern void rrgn_sub1(RECTREGION *, double, double, double, double);
extern void rrgn_scan(RECTREGION *, void (*)(double, double, double, double));
extern void rrgn_done(RECTREGION *);
extern RECTREGION *rrgn_clone(RECTREGION *);

#endif