public void RemoveByLayerType <T>() where T : ILayer
{
this.Layers.RemoveAll(l => l is T && l.LayerName != Current.Instance.Earthwatcher.PlayingRegion + Constants.RegionLawLayerName);
var currentLayers = layerCollection.Where(l => l is T && !(l is BaseTileLayer) || (l.LayerName.EndsWith(Constants.RegionLawLayerName))).ToList();
foreach (var layer in currentLayers)
{
layerCollection.Remove(layer);
Current.Instance.LayerHelper.LayerCollection.Remove(layer);
}
}
private void AttachMapLayerCollection(LayerCollection layers)
{
if (layers == null)
{
return;
}
layerCollection = layers;
layers.LayersInitialized += MapView_LayersInitialized;
layers.CollectionChanged += Layers_CollectionChanged;
AttachLayerEventHandler(GetLayers(LayerIDs, layers));
var initializedLayers = layers.Where(l => l is FeatureLayer && l.IsInitialized);
if (initializedLayers.Count() > 0)
{
setTemplates();
}
}
/// <summary> Event handler for a change of the layers collection. Updates the layer list. </summary>
/// <param name="sender"> Sender of the CollectionChanged event. </param>
/// <param name="e"> The event parameters. </param>
private void Layers_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
// Unregister events for old layers
if (e.OldItems != null)
{
foreach (var layer in e.OldItems)
{
((ILayer)layer).PropertyChanged -= layer_PropertyChanged;
}
}
// unregister events for existing layers
foreach (var layer in layers.Where(layer => e.NewItems == null || !e.NewItems.Contains(layer)))
{
layer.PropertyChanged -= layer_PropertyChanged;
}
UpdateLayerList();
}
public static MapRectangle GetMapRectangleFromShapeLayers(this LayerCollection layers)
{
var shapeLayers = layers.Where(l => l.GetType() == typeof(ShapeLayer)).Select(l => l as ShapeLayer);
if (shapeLayers.Count() == 0)
{
return(null);
}
double up = double.MinValue, down = double.MaxValue, left = double.MaxValue, rigth = double.MinValue;
foreach (var layer in shapeLayers)
{
if (layer.Shapes.Count == 0)
{
continue;
}
//up = Math.Max(up, layer.Shapes.Where(s => s.GetType().IsSubclassOf(typeof(MapPolylineBase))).Select(l => l as MapPolylineBase).Select(mlb => mlb.GetMaxY()).Max());
//down = Math.Min(up, layer.Shapes.Where(s => s.GetType().IsSubclassOf(typeof(MapPolylineBase))).Select(l => l as MapPolylineBase).Select(mlb => mlb.GetMinY()).Min());
//left = Math.Min(up, layer.Shapes.Where(s => s.GetType().IsSubclassOf(typeof(MapPolylineBase))).Select(l => l as MapPolylineBase).Select(mlb => mlb.GetMinX()).Min());
//rigth = Math.Max(up, layer.Shapes.Where(s => s.GetType().IsSubclassOf(typeof(MapPolylineBase))).Select(l => l as MapPolylineBase).Select(mlb => mlb.GetMaxX()).Max());
up = Math.Max(up, layer.Shapes.Select(s => ShapeCanvas.GetLocation(s).Y).Max());
down = Math.Min(down, layer.Shapes.Select(s => ShapeCanvas.GetLocation(s).Y).Min());
left = Math.Min(left, layer.Shapes.Select(s => ShapeCanvas.GetLocation(s).X).Min());
rigth = Math.Max(rigth, layer.Shapes.Select(s => ShapeCanvas.GetLocation(s).X).Max());
}
if (up == double.MinValue)
{
return(null);
}
return
(new Ptv.XServer.Controls.Map.MapRectangle()
{
North = up,
South = down,
West = left,
East = rigth,
}.Inflate(1.05, 1.05));
}
private void AttachMapLayerCollection(LayerCollection layers)
{
if (layers == null) return;
layerCollection = layers;
layers.LayersInitialized += MapView_LayersInitialized;
layers.CollectionChanged += Layers_CollectionChanged;
AttachLayerEventHandler(GetLayers(LayerIDs, layers));
var initializedLayers = layers.Where(l => l is FeatureLayer && l.IsInitialized);
if (initializedLayers.Count() > 0)
setTemplates();
}
