public void SetBorder ( Rectanglef mapBorder )
{
border = new Border( mapBorder.X, mapBorder.Y, mapBorder.X + mapBorder.Width, mapBorder.Y + mapBorder.Height );
}
public void SetBorder ( float minX, float minY, float maxX, float maxY )
{
border = new Border( minX, minY, maxX, maxY );
}