private MultipolygonShape BufferShape(BaseShape shape)
{
MultipolygonShape bufferedShape = null;
if (capstyle == BufferCapType.Round)
{
bufferedShape = SqlTypesGeometryHelper.Buffer(shape, Distance, Smoothness, Capstyle, MapUnit, DistanceUnit);
}
else
{
bufferedShape = shape.Buffer(distance, smoothness, capstyle, mapUnit, distanceUnit);
}
return(bufferedShape);
}
public static Collection <AreaBaseShape> GetSplitResult(this AreaBaseShape polygon, Collection <LineShape> lines)
{
SqlGeometry polygonGeom = SqlGeometry.STGeomFromWKB(new SqlBytes(polygon.GetWellKnownBinary()), 0);
if (!polygonGeom.STIsValid())
{
polygonGeom = polygonGeom.MakeValid();
}
//GeometryLibrary library = BaseShape.GeometryLibrary;
//BaseShape.GeometryLibrary = GeometryLibrary.Unmanaged;
foreach (var item in lines)
{
//MultipolygonShape multipolygon = item.Buffer(0.2, 8, BufferCapType.Square, GeographyUnit.DecimalDegree, DistanceUnit.Meter);
MultipolygonShape multipolygon = SqlTypesGeometryHelper.Buffer(item, 0.2, 8, BufferCapType.Square, GeographyUnit.DecimalDegree, DistanceUnit.Meter);
SqlGeometry multipolygonGeom = SqlGeometry.STGeomFromWKB(new SqlBytes(multipolygon.GetWellKnownBinary()), 0);
if (!multipolygonGeom.STIsValid())
{
multipolygonGeom = multipolygonGeom.MakeValid();
}
polygonGeom = polygonGeom.STDifference(multipolygonGeom);
}
//BaseShape.GeometryLibrary = library;
byte[] bytes = polygonGeom.STAsBinary().Value;
BaseShape shape = BaseShape.CreateShapeFromWellKnownData(bytes) as AreaBaseShape;
MultipolygonShape splittedMultipolygonShape = shape as MultipolygonShape;
PolygonShape splittedPolygonShape = shape as PolygonShape;
if (splittedMultipolygonShape == null && splittedPolygonShape != null)
{
splittedMultipolygonShape = new MultipolygonShape();
splittedMultipolygonShape.Polygons.Add(splittedPolygonShape);
shape = splittedMultipolygonShape;
}
Collection <AreaBaseShape> shapes = new Collection <AreaBaseShape>();
if (splittedMultipolygonShape != null)
{
CloseSplittedPolygons(polygon, splittedMultipolygonShape, lines[0], GeographyUnit.DecimalDegree, DistanceUnit.Meter, .3);
FillShapes(shapes, shape);
}
return(shapes);
}