Hi hadri1,

For the case that you showed:



You can detect 3 corner points by this method:

function CountCornerPoints( crv )
{
	var num_corners = 0;

	/* Count 1 for each segment after the first segment. */

	var segment_list = crv.getSubObjects();
	var num_segments = segment_list.length;

	num_corners += (num_segments - 1);

	if ( !crv.isClosed )
	{
		/* If the curve is open add one for start point and one for end point. */
		num_corners += 2;
	}
	else
	{
		/* If the curve is closed add one if it is sharp at the start/end seam point. */
		var seg = segment_list.item(0);
		if ( !seg.getIsG1ToAdjacentSegment(0) )
		{
			num_corners++;
		}
	}

	return num_corners;
}

- Michael