/// <summary>
/// Update the IM with the contribution for this component.
/// A component only contributes if it has a labelling for both parent geometries
/// </summary>
/// <param name="im"></param>
protected override void ComputeIM( IntersectionMatrix im )
{
im.SetAtLeastIfValid( _label.GetLocation( 0 ), _label.GetLocation( 1 ), 0 );
} // protected override void ComputeIM( IntersectionMatrix im )
/// <summary>
/// Updates an IM from the label for an edge. Handles edges from both L and A geometrys.
/// </summary>
/// <param name="label"></param>
/// <param name="im"></param>
public static void UpdateIM(Label label, IntersectionMatrix im)
{
im.SetAtLeastIfValid( label.GetLocation( 0, Position.On ), label.GetLocation( 1, Position.On ), 1);
if ( label.IsArea() )
{
im.SetAtLeastIfValid( label.GetLocation( 0, Position.Left ), label.GetLocation( 1, Position.Left ), 2);
im.SetAtLeastIfValid( label.GetLocation( 0, Position.Right ), label.GetLocation( 1, Position.Right ), 2);
}
}