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#ifndef _SPIRO_H
#define _SPIRO_H
#include "bezctx_intf.h"
typedef struct {
double x;
double y;
char ty;
} spiro_cp;
typedef struct spiro_seg_s spiro_seg;
spiro_seg *
run_spiro(const spiro_cp *src, int n);
void
free_spiro(spiro_seg *s);
void
spiro_to_bpath(const spiro_seg *s, int n, bezctx *bc);
double get_knot_th(const spiro_seg *s, int i);
#endif
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