How to use

findSegment

method

in

org.jhotdraw.draw.BezierFigure

/**
 * Joins two segments into one if the given Point2D.Double hits a node
 * of the polyline.
 * @return true if the two segments were joined.
 *
 * @param join a Point at a node on the bezier path
 * @param tolerance a tolerance, tolerance should take into account
 * the line width, plus 2 divided by the zoom factor. 
 */
public boolean joinSegments(Point2D.Double join, double tolerance) {
  int i = findSegment(join, tolerance);
  if (i != -1 && i > 1) {
    removeNode(i);
    return true;
  }
  return false;
}

/**
 * Splits the segment at the given Point2D.Double if a segment was hit.
 * @return the index of the segment or -1 if no segment was hit.
 *
 * @param split a Point on (or near) a line segment on the bezier path
 * @param tolerance a tolerance, tolerance should take into account
 * the line width, plus 2 divided by the zoom factor. 
 */
public int splitSegment(Point2D.Double split, double tolerance) {
  int i = findSegment(split, tolerance);
  if (i != -1) {
    addNode(i + 1, new BezierPath.Node(split));
  }
  return i + 1;
}