addMitreJoin method

void addMitreJoin(Coordinate p, LineSegment offset0, LineSegment offset1, double distance,)

Adds a mitre join connecting the two reflex offset segments. The mitre will be beveled if it exceeds the mitre ratio limit.

@param offset0 the first offset segment @param offset1 the second offset segment @param distance the offset distance

Implementation

void addMitreJoin(
    Coordinate p, LineSegment offset0, LineSegment offset1, double distance) {
  /**
   * This computation is unstable if the offset segments are nearly collinear.
   * However, this situation should have been eliminated earlier by the check
   * for whether the offset segment endpoints are almost coincident
   */
  Coordinate? intPt = Intersection.intersection(
      offset0.p0, offset0.p1, offset1.p0, offset1.p1);
  if (intPt != null) {
    double mitreRatio =
        distance <= 0.0 ? 1.0 : intPt.distance(p) / distance.abs();
    if (mitreRatio <= bufParams.getMitreLimit()) {
      segList.addPt(intPt);
      return;
    }
  }
  // at this point either intersection failed or mitre limit was exceeded
  addLimitedMitreJoin(offset0, offset1, distance, bufParams.getMitreLimit());
//      addBevelJoin(offset0, offset1);
}