protected void OnMapMapLayerError(MapErrorEventArgs e)
{
if (MapLayerError != null)
{
MapLayerError(this, e);
}
}
private static void MapLayerPropertyChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (e.NewValue != null)
{
MapControl map = (MapControl)sender;
SuperMapProvider provider = null;
try
{
if (e.NewValue is MapByScalesLayer)
{
MapByScalesLayer temp = e.NewValue as MapByScalesLayer;
provider = new SuperMapProvider(temp.ServiceUrl, temp.MapName, temp.Scales);
}
else if (e.NewValue is MapByZoomCountLayer)
{
MapByZoomCountLayer temp = e.NewValue as MapByZoomCountLayer;
provider = new SuperMapProvider(temp.ServiceUrl, temp.MapName, temp.ZoomCount, temp.DefaultScaleIndex);
}
}
catch (Exception ex)
{
MapErrorEventArgs mapEx = new MapErrorEventArgs("初始化地图图层时发生异常", ex);
map.OnMapMapLayerError(mapEx);
return;
}
map._bounds = new Rectangle2D(
provider.Projection.Bounds.Left,
provider.Projection.Bounds.Bottom,
provider.Projection.Bounds.Right,
provider.Projection.Bounds.Top);
map.gMapControl1.MapProvider = provider;
map.gMapControl1.MaxZoom = provider.MapScales.Length - 1;
map.gMapControl1.MinZoom = 0;
map.gMapControl1.Zoom = 0;
map.Center = provider.DefaultMapCenter;
map._scales = provider.MapScales;
map.OnPropertyChanged(e);
}
}
void Map_MapLayerError(object sender, MapErrorEventArgs e)
{
_sync.Post(ShowMessage, "地图图层异常");
}