public int getIndexOfEdgePointAt(int x, int y, int tol) {
Rectangle rect = new Rectangle(x - tol / 2, y - tol / 2, tol, tol);
List<mxPoint> pts = getAbsolutePoints();
int i = 0;
for (mxPoint p : pts) {
// System.out.println("point="+p.getX()+" "+p.getY());
if (rect.contains(p.getPoint())) return i;
i++;
}
return -1;
}
