/*This is called to reset the map back to its original
* 1.0 scale as well as centering it about its original
* middle.*/
public void ScaleMapDefault()
{
ScaleTransform ST = new ScaleTransform();
ST.ScaleX = 1;
ST.ScaleY = 1;
imgbrush.RelativeTransform = ST;
TranslateTransform TT;
TT = new TranslateTransform(-TTX, -TTY);
imgbrush.ClearValue(ImageBrush.TransformProperty);
this.Update();
}