private void ProcessMuiltipleGeometry(MultipleGeometry f)
{
f.Geometry.ToList().ForEach(g =>
{
if (g is Polygon)
{
ProcessPolygonGeometry((Polygon)g);
}
if (g is LineString)
{
ProcessLineStringGeometry((LineString)g);
}
if (g is Point)
{
ProcessPointGeometry((Point)g);
}
if (g is LinearRing)
{
ProcessLinearRingGeometry((LinearRing) g);
}
if (g is MultipleGeometry)
{
ProcessMuiltipleGeometry((MultipleGeometry)g);
}
});
}
/// <summary>
/// Converts JSON geometry to KML geometry.
/// </summary>
/// <param name="geometry">ArcGIS JSON geometry</param>
/// <returns><see cref="Geometry"/></returns>
public static Geometry JsonToKmlGeometry(Dictionary<string, object> geometry)
{
Geometry placemarkGeometry;
if (geometry.Keys.Contains("x"))
{
// Create point geometry
// x and y are decimals;
var x = Convert.ToDouble(geometry["x"]);
var y = Convert.ToDouble(geometry["y"]);
placemarkGeometry = new Point { Coordinate = new Vector(y, x) };
}
else if (geometry.Keys.Contains("rings"))
{
// Create polygon geometry
var rings = (ArrayList)geometry["rings"];
var linearRings = from ArrayList ring in rings
select new LinearRing
{
Coordinates = new CoordinateCollection(from ArrayList point in ring
select new Vector(
Convert.ToDouble(point[1]),
Convert.ToDouble(point[0])
))
};
if (linearRings.Count() > 1)
{
var polygon = new Polygon();
polygon.OuterBoundary = new OuterBoundary { LinearRing = linearRings.ElementAt(0) };
var innerBoundaries = from lr in linearRings.Skip(1)
select new InnerBoundary { LinearRing = lr };
foreach (var ib in innerBoundaries)
{
polygon.AddInnerBoundary(ib);
}
placemarkGeometry = polygon;
}
else
{
placemarkGeometry = linearRings.First();
}
}
else if (geometry.Keys.Contains("paths"))
{
// Create line geometry
var paths = (ArrayList)geometry["paths"];
var lineStrings = from ArrayList path in paths
select new LineString
{
Coordinates = new CoordinateCollection(from ArrayList point in path
select new Vector(
Convert.ToDouble(point[1]),
Convert.ToDouble(point[0])
))
};
if (lineStrings.Count() > 1)
{
var multiGeo = new MultipleGeometry();
foreach (var ls in lineStrings)
{
multiGeo.AddGeometry(ls);
}
placemarkGeometry = multiGeo;
}
else
{
placemarkGeometry = lineStrings.First();
}
}
else
{
placemarkGeometry = null;
}
return placemarkGeometry;
}
protected virtual Feature CreateKmlFeature(FeatureDataRow feature, StyleSelector style)
{
var geometry = feature.Geometry;
geometry = ToTarget(geometry);
switch (geometry.OgcGeometryType)
{
case OgcGeometryType.Point:
{
var location = geometry.Coordinate;
var p = new Point { Coordinate = new Vector(location.Y, location.X) };
return WrapPlacemark(p, style, feature);
}
case OgcGeometryType.MultiPoint:
{
var multiGeometry = new MultipleGeometry();
foreach (var coordinate in geometry.Coordinates)
{
var p = new Point { Coordinate = new Vector(coordinate.Y, coordinate.X) };
multiGeometry.AddGeometry(p);
}
return WrapPlacemark(multiGeometry, style, feature);
}
case OgcGeometryType.LineString:
{
var lineString = CreateLineString(geometry);
return WrapPlacemark(lineString, style, feature);
}
case OgcGeometryType.Polygon:
{
var polygon = (IPolygon)geometry;
var kmlPolygon = CreateKmlPolygon(polygon);
return WrapPlacemark(kmlPolygon, style, feature);
}
case OgcGeometryType.MultiLineString:
{
var multiGeometry = new MultipleGeometry();
var multiLineString = (IMultiLineString)geometry;
foreach (var innerGeometry in multiLineString.Geometries)
{
var lineString = CreateLineString(innerGeometry);
multiGeometry.AddGeometry(lineString);
}
return WrapPlacemark(multiGeometry, style, feature);
}
case OgcGeometryType.MultiPolygon:
{
var multiGeometry = new MultipleGeometry();
var multiPoly = (IMultiPolygon)geometry;
foreach (var innerGeometry in multiPoly.Geometries.Cast<IPolygon>())
{
var polygon = CreateKmlPolygon(innerGeometry);
multiGeometry.AddGeometry(polygon);
}
return WrapPlacemark(multiGeometry, style, feature);
}
default:
throw new InvalidOperationException("Geometry not supported");
}
}
