diff options
Diffstat (limited to 'app/cornu/spiroentrypoints.h')
| -rw-r--r-- | app/cornu/spiroentrypoints.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/app/cornu/spiroentrypoints.h b/app/cornu/spiroentrypoints.h new file mode 100644 index 0000000..006804c --- /dev/null +++ b/app/cornu/spiroentrypoints.h @@ -0,0 +1,31 @@ +#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 |