/// <summary>
/// Gets the data polygons from a feature.
/// </summary>
/// <param name="feature">The feature.</param>
/// <returns>List with DataPolygons.</returns>
private List <DataPolygon> GetDataPolygons(Feature feature)
{
GeoJSONObjectType polygonType = feature.Geometry.Type;
List <DataPolygon> polygons = new List <DataPolygon>();
if (!(polygonType == GeoJSONObjectType.MultiPolygon || polygonType == GeoJSONObjectType.Polygon))
{
return(polygons);
}
DataPolygon dataPolygon;
if (polygonType == GeoJSONObjectType.MultiPolygon)
{
MultiPolygon multiPolygon = (MultiPolygon)feature.Geometry;
foreach (Polygon polygon in multiPolygon.Coordinates)
{
dataPolygon = DataPolygonConverter.ConvertToDataPolygon(polygon);
polygons.Add(dataPolygon);
}
}
if (polygonType == GeoJSONObjectType.Polygon)
{
dataPolygon = DataPolygonConverter.ConvertToDataPolygon((Polygon)feature.Geometry);
polygons.Add(dataPolygon);
}
return(polygons);
}
/// <summary>
/// Updates the spatial filter. All coordinates will be converted to Google Mercator.
/// </summary>
/// <param name="featureCollection">The feature collection.</param>
/// <param name="coordinateSystem">The coordinate system used in featureCollection.</param>
public void UpdateSpatialFilter(FeatureCollection featureCollection, CoordinateSystem coordinateSystem)
{
List <DataPolygon> dataPolygons = DataPolygonConverter.ConvertToDataPolygons(featureCollection);
if (coordinateSystem.Id != CoordinateSystemId.GoogleMercator)
{
DataContext dataContext = new DataContext(UserContext);
List <IPolygon> polygons = dataPolygons.ToPolygons(dataContext);
List <IPolygon> convertedPolygons = GisTools.CoordinateConversionManager.GetConvertedPolygons(polygons, coordinateSystem, new CoordinateSystem(CoordinateSystemId.GoogleMercator));
dataPolygons = DataPolygonConverter.ConvertToDataPolygons(convertedPolygons);
}
SpatialSetting.SetPolygons(dataPolygons);
}
public int AddPolygons(FeatureCollection featureCollection)
{
List <DataPolygon> dataPolygons = DataPolygonConverter.ConvertToDataPolygons(featureCollection);
if (dataPolygons.Count > 0)
{
foreach (var dataPolygon in dataPolygons)
{
SpatialSetting.Polygons.Add(dataPolygon);
}
SpatialSetting.IsActive = true;
}
return(dataPolygons.Count);
}
/// <summary>
/// Updates the spatial filter.
/// </summary>
/// <param name="featureCollection">The feature collection.</param>
public void UpdateSpatialFilter(FeatureCollection featureCollection)
{
List <DataPolygon> dataPolygons = DataPolygonConverter.ConvertToDataPolygons(featureCollection);
SpatialSetting.SetPolygons(dataPolygons);
}