/// <summary>
/// 更改图层顺序
/// </summary>
/// <param name="index1"></param>
/// <param name="index2"></param>
internal void ChangeLayerIndex(int index1, int index2)
{
MyLayer tpLayer = mapLayers[index1];
mapLayers[index1] = mapLayers[index2];
mapLayers[index2] = tpLayer;
}
/// <summary>
/// 增加图层
/// </summary>
internal void AddLayer(MyLayer layer)
{
mapLayers.Insert(0, layer);
}
