private void RemoveMapData(DrawnMapData drawnMapDataToRemove)
{
drawnMapDataToRemove.Observer.Dispose();
drawnMapDataList.Remove(drawnMapDataToRemove);
map.Layers.Remove(drawnMapDataToRemove.FeatureBasedMapDataLayer);
}
private void DrawMapData(FeatureBasedMapData featureBasedMapData)
{
IFeatureBasedMapDataLayer featureBasedMapDataLayer = FeatureBasedMapDataLayerFactory.Create(featureBasedMapData);
var drawnMapData = new DrawnMapData
{
FeatureBasedMapData = featureBasedMapData,
FeatureBasedMapDataLayer = featureBasedMapDataLayer
};
drawnMapData.Observer = new Observer(() =>
{
mapDataLayersToUpdate.Add(drawnMapData.FeatureBasedMapDataLayer);
StartUpdateTimer();
})
{
Observable = featureBasedMapData
};
drawnMapDataList.Add(drawnMapData);
if (!Projection.Equals(featureBasedMapDataLayer.Projection))
{
featureBasedMapDataLayer.Reproject(Projection);
}
map.Layers.Add(featureBasedMapDataLayer);
}
/// <summary>
/// Defines the area taken up by the visible map-data based on the provided map-data.
/// </summary>
/// <param name="mapData">The data to determine the visible extent for.</param>
/// <returns>The area definition.</returns>
/// <exception cref="ArgumentException">Thrown when <paramref name="mapData"/> is
/// not part of the drawn map features.</exception>
private Envelope CreateEnvelopeForVisibleLayers(MapData mapData)
{
if (mapData is MapDataCollection collection)
{
return(CreateEnvelopeForVisibleLayers(collection));
}
DrawnMapData drawnMapData = drawnMapDataList.FirstOrDefault(dmd => dmd.FeatureBasedMapData.Equals(mapData));
if (drawnMapData == null)
{
throw new ArgumentException($@"Can only zoom to {nameof(MapData)} that is part of this {nameof(MapControl)}s drawn {nameof(mapData)}.",
nameof(mapData));
}
var envelope = new Envelope();
if (LayerHasVisibleExtent(drawnMapData.FeatureBasedMapDataLayer))
{
envelope.ExpandToInclude(drawnMapData.FeatureBasedMapDataLayer.Extent.ToEnvelope());
}
return(envelope);
}