/// <summary>
/// Performs any processing that needs to be done just before the position of
/// a referenced feature is changed.
/// </summary>
/// <param name="f">The feature that is about to be moved - something that
/// the <c>IFeatureDependent</c> is dependent on (not null).</param>
/// <param name="ctx">The context in which the move is being made (not null).</param>
public void OnFeatureMoving(Feature f, UpdateEditingContext ctx)
{
EditingIndex index = f.MapModel.EditingIndex;
if (index != null && this.IsIndexed)
{
index.RemoveCircle(this);
this.IsIndexed = false;
}
}
