wordrec/plotedges.cpp

Go to the documentation of this file.

#ifdef __UNIX__
#include <assert.h>
#endif

#include "plotedges.h"
#include "render.h"
#include "split.h"

/*----------------------------------------------------------------------
              V a r i a b l e s
----------------------------------------------------------------------*/
void *edge_window = NULL;

/*----------------------------------------------------------------------
              F u n c t i o n s
----------------------------------------------------------------------*/
/* ================== */
void display_edgepts(LIST outlines) { 
  void *window;
  /* Set up window */
  if (edge_window == NULL) {
    edge_window = c_create_window ("Edges", 750, 150,
      400, 128, -400.0, 400.0, 0.0, 256.0);
  }
  else {
    c_clear_window(edge_window);
  }
  /* Render the outlines */
  window = edge_window;
  /* Reclaim old memory */
  iterate(outlines) {
    render_edgepts (window, (EDGEPT *) first (outlines), White);
  }
}


/* ================== */
void draw_blob_edges(TBLOB *blob) {
  TESSLINE *ol;
  LIST edge_list = NIL;

  if (display_splits) {
    for (ol = blob->outlines; ol != NULL; ol = ol->next)
      push_on (edge_list, ol->loop);
    display_edgepts(edge_list);
    destroy(edge_list);
  }
}


/* ================== */
void mark_outline(EDGEPT *edgept) {  /* Start of point list */
  void *window = edge_window;
  float x = edgept->pos.x;
  float y = edgept->pos.y;

  c_line_color_index(window, Red);
  c_move(window, x, y);

  x -= 4;
  y -= 12;
  c_draw(window, x, y);

  x -= 2;
  y += 4;
  c_draw(window, x, y);

  x -= 4;
  y += 2;
  c_draw(window, x, y);

  x += 10;
  y += 6;
  c_draw(window, x, y);

  c_make_current(window);
}


/* ================== */
void mark_split(SPLIT *split) { 
  void *window = edge_window;

  c_line_color_index(window, Green);
  c_move (window, (float) split->point1->pos.x, (float) split->point1->pos.y);
  c_draw (window, (float) split->point2->pos.x, (float) split->point2->pos.y);
  c_make_current(window);
}

---