/// <summary>
/// 对公路网图层进行处理 线程安全
/// 如果有则将其提取到第一个位置
/// 如果没有直接加载
/// </summary>
/// <param name="mapControl"></param>
public ILayer DealRoutenetLayer(AxMapControl mapControl)
{
IGroupLayer myGroupLayer = null;
int gIndex;
int layerIndex;
ILayer routeNetLayer = LayerUtil.QueryLayerInMap(mapControl, "公路网", ref myGroupLayer, out layerIndex, out gIndex);
//如果公路网的数据没有加载，则直接加载
if (routeNetLayer == null)
{
routeNetLayer = ShapeSimpleHelper.OpenFile(Common.RouteNetFeaturePath);
RouteLayerUtil.SetRouteLayerStyle(routeNetLayer);
mapControl.AddLayer(routeNetLayer);
}
//否则 保证在第一个位置 也就是图层最上面
if (gIndex < 1 && layerIndex == 0)
{
routeNetLayer.Visible = true;
}
else
{
if (myGroupLayer != null)
{
myGroupLayer.Delete(routeNetLayer);
}
else
{
mapControl.Map.DeleteLayer(routeNetLayer);
}
mapControl.AddLayer(routeNetLayer);
}
return(routeNetLayer);
}
/// <summary>
/// 添加图层到mapcontrol当中
/// </summary>
/// <param name="fileNames"></param>
private void AddFileToMapControl(string [] fileNames)
{
foreach (var fileName in fileNames)
{
try
{
ILayer layer = null;
string extension = System.IO.Path.GetExtension(fileName);
if (extension == ".shp")
{
layer = ShapeSimpleHelper.OpenFile(fileName);
}
else if (extension == ".tif")
{
layer = RasterSimpleHelper.OpenRasterFile(fileName);
}
MainFrom.m_mapControl.AddLayer(layer);
}
catch (Exception e)
{
Debug.Print(e.Message);
}
}
}
