ArcGIS Pro 3.2 API Reference Guide
ArcGIS.Core.Geometry Namespace / GeometryEngine Class / Reshape Method
The geometry to be reshaped.
The reshaper.

In This Topic
    Reshape Method (GeometryEngine)
    In This Topic
    Reshapes a polygon or polyline with a single path polyline.
    Public Function Reshape( _
       ByVal multipart As Multipart, _
       ByVal reshaper As Polyline _
    ) As Multipart


    The geometry to be reshaped.
    The reshaper.
    Either multipartor reshaperor both are null.
    Incompatible spatial references between the input geometries.
    The reshaper polyline must have exactly one part.
    The output geometry takes the shape of the input multipart where it first intersects the reshaper to the last intersection. The first and last intersection points of the reshaper are chosen closest to the end points of the reshaper in the case that multiple intersections are found. The output geometry may not be simple. If the geometry cannot be reshaped by the input reshaper, then null will be returned.
    Reshape a polygon
    List<Coordinate2D> polygon1Coords = new List<Coordinate2D>()
      new Coordinate2D(0, -11000),
      new Coordinate2D(1000, -11000),
      new Coordinate2D(1000, -12000),
      new Coordinate2D(0, -12000),
      new Coordinate2D(0, -11000)
    // reshaper coordinates intersect the polygon
    List<Coordinate2D> reshaperCoords = new List<Coordinate2D>()
      new Coordinate2D(1500, -11800),
      new Coordinate2D(-2600, -11800)
    SpatialReference sr = SpatialReferenceBuilder.CreateSpatialReference(102010);
    Polygon polygon1 = PolygonBuilderEx.CreatePolygon(polygon1Coords, sr);
    Polyline reshaper = PolylineBuilderEx.CreatePolyline(reshaperCoords, sr);
    Polygon outPolygon = GeometryEngine.Instance.Reshape(polygon1, reshaper) as Polygon;
    // outPolygon.PartCount = 1
    ReadOnlySegmentCollection segments = outPolygon.Parts[0];
    // segments.Count = 4
    // outPolygon.PointCount = 5
    string json = GeometryEngine.Instance.ExportToJson(JsonExportFlags.JsonExportSkipCRS, outPolygon);
    // json = "{\"rings\":[[[0,-11800],[0,-11000],[1000,-11000],[1000,-11800],[0,-11800]]]}";
    // example where the Reshaper polyline doesn't intersect the input
    reshaperCoords.Add(new Coordinate2D(1000, 1000));
    reshaperCoords.Add(new Coordinate2D(2000, 1000));
    reshaper = PolylineBuilderEx.CreatePolyline(reshaperCoords, sr);
    outPolygon = GeometryEngine.Instance.Reshape(polygon1, reshaper) as Polygon;
    // outPolygon = null

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also