// The old oldLineSeg can't be null, the trans can be null.
public static GeLineSeg GetTransformedLineSeg(GeLineSeg oldLineSeg, Matrix44 trans)
{
Debug.Assert(oldLineSeg != null);
GeLineSeg newLineSeg = null;
if (oldLineSeg != null && trans != null)
{
newLineSeg = new GeLineSeg(
trans * oldLineSeg.StartPoint,
trans * oldLineSeg.EndPoint);
}
else // either of them is null.
newLineSeg = oldLineSeg;
return newLineSeg;
}
public bool IsOn(GeLineSeg LinSeg)
{
if (null == LinSeg) return false;
Debug.Assert(false, "NO IMPL, Can remove later");
return LinSeg.Contains(this);
}