//Methods
public virtual Segment AddSegment(int position, Origin origin)
{
//Valid the position
if (position < 1)
{
throw new ArgumentException("Position must be greater than zero.", "position");
}
if (position > Segments.Count)
{
throw new ArgumentException("Position cannot be greater than the total number of segments.", "position");
}
if (origin == null)
{
throw new ArgumentNullException("origin", "Origin may not be null.");
}
//Create new segment
Segment segment = new Segment(origin, Segments[position - 1].End);
//Set the previous end to the new origin
Segments[position - 1].SetEnd(origin);
Segments.Insert(position, segment);
origin.OriginInvalid += new EventHandler(Origin_OriginInvalid);
segment.SegmentInvalid += new EventHandler(segment_SegmentInvalid);
origin.SetLine(this);
DrawPath();
OnElementInvalid();
return(segment);
}
