/// <summary>
/// scales the edge by a certain amount from its center
/// </summary>
public void ScaleEdge(float scaleFactor)
{
var center = Center;
var p1 = center + (scaleFactor) * (Origin - center);
var p2 = center + (scaleFactor) * (Destination - center);
Origin.ChangePosition(p1);
Destination.ChangePosition(p2);
Update();
}
