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#ifndef _SPIROENTRYPOINTS_H
# define _SPIROENTRYPOINTS_H
# include "bezctx_intf.h"
# include "spiro.h"
/* Possible values of the "ty" field. */
#define SPIRO_CORNER 'v'
#define SPIRO_G4 'o'
#define SPIRO_G2 'c'
#define SPIRO_LEFT '['
#define SPIRO_RIGHT ']'
/* For a closed contour add an extra cp with a ty set to */
#define SPIRO_END 'z'
/* For an open contour the first cp must have a ty set to*/
#define SPIRO_OPEN_CONTOUR '{'
/* For an open contour the last cp must have a ty set to */
#define SPIRO_END_OPEN_CONTOUR '}'
/* The spiros array should indicate it's own end... So */
/* Open contours must have the ty field of the first cp set to '{' */
/* and have the ty field of the last cp set to '}' */
/* Closed contours must have an extra cp at the end whose ty is 'z' */
/* the x&y values of this extra cp are ignored */
extern void TaggedSpiroCPsToBezier(spiro_cp *spiros,bezctx *bc);
/* The first argument is an array of spiro control points. */
/* Open contours do not need to start with '{', nor to end with '}' */
/* Close contours do not need to end with 'z' */
extern void SpiroCPsToBezier(spiro_cp *spiros,int n,int isclosed,bezctx *bc);
#endif
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