/// <summary>
/// 根据已有控件重绘
/// </summary>
/// <param name="map"></param>
/// <param name=""></param>
public LegendSymbol(Map.MyMap map, LegendSymbol from, Point location, double resizescale2formal)
{
ResizeScale = resizescale2formal;
SetLegend(map, ResizeScale);
Box.Name = "LegendSymbol";
Box.Location = location;
}
/// <summary>
/// 图例
/// </summary>
public void AddLegendSymbol()
{
CosmosGIS.LayoutClass.LegendSymbol from = new CosmosGIS.LayoutClass.LegendSymbol(thismap, new Point((int)(PB_background.Width * 0.7), (int)(PB_background.Height * 0.5)));
Point location = ComputeResizeLocation(from.Box.Location, boxscale);
LegendSymbol newlengend = new LegendSymbol(thismap, from, location, boxscale);
this.Add(newlengend.Box);
}