ccstruct/polyaprx.h

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#ifndef           POLYAPRX_H
#define           POLYAPRX_H

#include          "tessclas.h"
#include          "poutline.h"
#include          "coutln.h"

OUTLINE *tesspoly_outline(                       //old approximation
                          C_OUTLINE *c_outline,  //input
                          float                  //xheight
                         );
EDGEPT *edgesteps_to_edgepts (   //convert outline
C_OUTLINE * c_outline,           //input
EDGEPT edgepts[]                 //output is array
);
void fix2(                //polygonal approx
          EDGEPT *start,  /*loop to approimate */
          int area);
EDGEPT *poly2(                  //second poly
              EDGEPT *startpt,  /*start of loop */
              int area          /*area of blob box */
             );
void cutline(                //recursive refine
             EDGEPT *first,  /*ends of line */
             EDGEPT *last,
             int area        /*area of object */
            );
#define fixed_dist      20
#define point_diff(p,p1,p2) (p).x = (p1).x - (p2).x ; (p).y = (p1).y - (p2).y
#define CROSS(a,b) ((a).x * (b).y - (a).y * (b).x)
#define LENGTH(a) ((a).x * (a).x + (a).y * (a).y)
#endif

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