Beispiel #1
0
/**********************************************************************
 * try_point_pairs
 *
 * Try all the splits that are produced by pairing critical points
 * together.  See if any of them are suitable for use.  Use a seam
 * queue and seam pile that have already been initialized and used.
 **********************************************************************/
void Wordrec::try_point_pairs(EDGEPT * points[MAX_NUM_POINTS],
                              inT16 num_points,
                              SeamQueue* seam_queue,
                              SeamPile* seam_pile,
                              SEAM ** seam,
                              TBLOB * blob) {
  inT16 x;
  inT16 y;
  PRIORITY priority;

  for (x = 0; x < num_points; x++) {
    for (y = x + 1; y < num_points; y++) {
      if (points[y] &&
          points[x]->WeightedDistance(*points[y], chop_x_y_weight) <
              chop_split_length &&
          points[x] != points[y]->next && points[y] != points[x]->next &&
          !is_exterior_point(points[x], points[y]) &&
          !is_exterior_point(points[y], points[x])) {
        SPLIT split(points[x], points[y]);
        priority = partial_split_priority(&split);

        choose_best_seam(seam_queue, &split, priority, seam, blob, seam_pile);
      }
    }
  }
}
Beispiel #2
0
/**
 * @name pick_close_point
 *
 * Choose the edge point that is closest to the critical point.  This
 * point may not be exactly vertical from the critical point.
 */
EDGEPT *Wordrec::pick_close_point(EDGEPT *critical_point,
                                  EDGEPT *vertical_point,
                                  int *best_dist) {
  EDGEPT *best_point = nullptr;
  int this_distance;
  int found_better;

  do {
    found_better = false;

    this_distance = edgept_dist (critical_point, vertical_point);
    if (this_distance <= *best_dist) {

      if (!(same_point (critical_point->pos, vertical_point->pos) ||
        same_point (critical_point->pos, vertical_point->next->pos) ||
        (best_point && same_point (best_point->pos, vertical_point->pos)) ||
      is_exterior_point (critical_point, vertical_point))) {
        *best_dist = this_distance;
        best_point = vertical_point;
        if (chop_vertical_creep)
          found_better = true;
      }
    }
    vertical_point = vertical_point->next;
  }
  while (found_better == true);

  return (best_point);
}