Function NextDirectionChange

deps/tesseract/classify/mfoutline.cpp:465–479

* This routine returns the next point in the micro-feature * outline that has a direction different than EdgePoint. The * routine assumes that the outline being searched is not a * degenerate outline (i.e. it must have 2 or more edge points). * @param EdgePoint start search from this point * @return Point of next direction change in micro-feature outline. * @note Globals: none * @note Exce

 * @note History: 7/25/89, DSJ, Created.
 */
MFOUTLINE NextDirectionChange(MFOUTLINE EdgePoint) {
  DIRECTION InitialDirection;

  InitialDirection = PointAt (EdgePoint)->Direction;

  MFOUTLINE next_pt = NULL;
  do {
    EdgePoint = NextPointAfter(EdgePoint);
    next_pt = NextPointAfter(EdgePoint);
  } while (PointAt(EdgePoint)->Direction == InitialDirection &&
           !PointAt(EdgePoint)->Hidden &&
           next_pt != NULL && !PointAt(next_pt)->Hidden);

  return (EdgePoint);
}