Latest Contributions by AnnetteLocke

Hi Bill, I have reached out to a colleague who knows more about this than I do to answer your question. You should be hearing from her soon. Annette  ... View more

Correction: This was added in 3.4. ... View more

There are two new methods. IReadOnlyList<MapPoint> QueryPoints(Segment segment, SegmentExtensionType extensionType, IEnumerable<double> distancesAlongCurve, AsRatioOrLength asRatioOrLength)   IReadOnlyList<MapPoint> QueryPoints(Multipart multipart, SegmentExtensionType extensionType, IEnumerable<double> distancesAlongCurve, AsRatioOrLength asRatioOrLength) ... View more

Hi,  This functionality has been added to the next release which is 3.5.  ... View more

Eugene, thank you for the suggestion. The Relation method will be added to ArcPy in a future release. ... View more

By definition, if two polylines cross, then they don't touch and vice versa. Here's how it works. The interior of a polyline is the set of points in the polyline that are not start or end points of a path. If the intersection of the interiors is empty, but the intersection of the polylines is not empty (they intersect only at start or end points of a path), then the polylines touch. Two polylines cross if they meet at points only, and at least one of the shared points is internal to both polylines. See https://github.com/ArcGIS/arcgis-pro-sdk/wiki/ProConcepts-Geometry#predefined-relational-operations For your case, you can use the Relation operator. See https://developers.arcgis.com/python/latest/api-reference/arcgis.geometry.html#relation ... View more

Hi, We will add it in the next release. Thank you for the suggestion. Annette ... View more

Hi, This will be fixed in the ArcGIS Pro 3.3. Annette ... View more

If you set HasZ = true in the builder, then all start and end points will have the HasZ property set to true too. Here is some code to set the z-values in the points while still preserving the curve segments.  ///////////////////////////////// LineSegment line = LineBuilderEx.CreateLineSegment(new Coordinate2D(0, 0), new Coordinate2D(3, 3)); MapPoint start = MapPointBuilderEx.CreateMapPoint(3, 3); MapPoint end = MapPointBuilderEx.CreateMapPoint(7, 3); Coordinate2D center = new Coordinate2D(5, 5); EllipticArcSegment arc = EllipticArcBuilderEx.CreateCircularArc(start, end, center, ArcOrientation.ArcCounterClockwise); Polyline polyline = PolylineBuilderEx.CreatePolyline(new Segment[] { line, arc }); Assert.IsFalse(polyline.HasZ); PolylineBuilderEx polylineBuilder = new PolylineBuilderEx(polyline); polylineBuilder.HasZ = true; Polyline polyline3D = polylineBuilder.ToGeometry(); var points = polyline3D.Points; foreach (MapPoint p in points)   Assert.IsTrue(p.HasZ); var part = polyline3D.Parts[0]; int numSegments = part.Count; for (int i = 0; i < numSegments; i++) {   Segment segment = part[i];   MapPointBuilderEx pointBuilder = new MapPointBuilderEx(segment.StartPoint);   pointBuilder.Z = i + 1;   MapPoint startPoint = pointBuilder.ToGeometry();   pointBuilder = new MapPointBuilderEx(segment.EndPoint);   pointBuilder.Z = i + 2;   MapPoint endPoint = pointBuilder.ToGeometry();   SegmentType segmentType = segment.SegmentType;   SegmentBuilderEx segmentBuilder = null;   switch (segmentType)   {     case SegmentType.Line:       segmentBuilder = new LineBuilderEx((LineSegment)segment);       break;     case SegmentType.Bezier:       segmentBuilder = new CubicBezierBuilderEx((CubicBezierSegment)segment);       break;     case SegmentType.EllipticArc:       segmentBuilder = new EllipticArcBuilderEx((EllipticArcSegment)segment);       break;   }   segmentBuilder.StartPoint = startPoint;   segmentBuilder.EndPoint = endPoint;   segment = segmentBuilder.ToSegment();   polylineBuilder.ReplaceSegment(0, i, segment); } polyline3D = polylineBuilder.ToGeometry(); /////////////////////////////////   ... View more

Can you use this workaround?  private Multipart GetOffsetUsingGraphicBuffer(Multipart multipart, double offsetDistance, LineJoinType joinType) { Polygon graphicBuffer = GeometryEngine.Instance.GraphicBuffer(multipart, Math.Abs(offsetDistance), joinType, LineCapType.Square, 4, 0, 96) as Polygon; Polyline boundary = GeometryEngine.Instance.Boundary(graphicBuffer) as Polyline; ProximityResult startResult = GeometryEngine.Instance.NearestPoint(boundary, multipart.Points[0]); Coordinate2D coord = (Coordinate2D)(startResult.Point); Segment firstSegment = multipart.Parts[0][0]; // Negative offset distance means the offset line will be on the left side bool isOnRightSide = PointIsOnRightSide(firstSegment.StartCoordinate, coord, firstSegment.EndCoordinate); if (offsetDistance > 0 && !isOnRightSide) coord.Rotate(Math.PI, (Coordinate2D)(multipart.Points[0])); double distanceAlongCurve1, distanceFromCurve; LeftOrRightSide whichSide; MapPoint point = GeometryEngine.Instance.QueryPointAndDistance(boundary, SegmentExtensionType.NoExtension, coord.ToMapPoint(), AsRatioOrLength.AsRatio, out distanceAlongCurve1, out distanceFromCurve, out whichSide); ProximityResult endResult = GeometryEngine.Instance.NearestPoint(boundary, multipart.Points.Last()); coord = (Coordinate2D)(endResult.Point); if (offsetDistance > 0 && !isOnRightSide) coord.Rotate(Math.PI, (Coordinate2D)(multipart.Points.Last())); double distanceAlongCurve2; point = GeometryEngine.Instance.QueryPointAndDistance(boundary, SegmentExtensionType.NoExtension, coord.ToMapPoint(), AsRatioOrLength.AsRatio, out distanceAlongCurve2, out distanceFromCurve, out whichSide); double d1 = Math.Min(distanceAlongCurve1, distanceAlongCurve2); double d2 = Math.Max(distanceAlongCurve1, distanceAlongCurve2); Polyline subCurve = GeometryEngine.Instance.GetSubCurve(boundary, d1, d2, AsRatioOrLength.AsRatio) as Polyline; return subCurve; } private bool PointIsOnRightSide(Coordinate2D origin, Coordinate2D p1, Coordinate2D p2) { // The result is positive if p1 lies on right side of origin-->p2; double part1 = (p1.X - origin.X) * (p2.Y - origin.Y), part2 = (p1.Y - origin.Y) * (p2.X - origin.X), result = part1 - part2; return result > 0; } // Here is a test public void GEOffsetWorkaroundTest() { SpatialReference spatialReference = SpatialReferences.WGS84; var coords = new List<Coordinate2D> { new Coordinate2D(0.1, 0.1), new Coordinate2D(0.2, 0.5), new Coordinate2D(0.3, 0.1), new Coordinate2D(0.4, 0.1), new Coordinate2D(0.5, 0.8) }; Polyline polyline = PolylineBuilderEx.CreatePolyline(coords, spatialReference) as Polyline; Polyline outputOffsetPolyline = GetOffsetUsingGraphicBuffer(polyline, 0.1, LineJoinType.Miter) as Polyline; File.WriteAllText("C:\\temp\\outputOffsetPolyline_1_.txt", outputOffsetPolyline.ToJson()); outputOffsetPolyline = GetOffsetUsingGraphicBuffer(polyline, -0.1, LineJoinType.Miter) as Polyline; File.WriteAllText("C:\\temp\\outputOffsetPolyline_2_.txt", outputOffsetPolyline.ToJson()); outputOffsetPolyline = GetOffsetUsingGraphicBuffer(polyline, 0.1, LineJoinType.Bevel) as Polyline; File.WriteAllText("C:\\temp\\outputOffsetPolyline_3_.txt", outputOffsetPolyline.ToJson()); outputOffsetPolyline = GetOffsetUsingGraphicBuffer(polyline, -0.1, LineJoinType.Bevel) as Polyline; File.WriteAllText("C:\\temp\\outputOffsetPolyline_4_.txt", outputOffsetPolyline.ToJson()); outputOffsetPolyline = GetOffsetUsingGraphicBuffer(polyline, 0.1, LineJoinType.Round) as Polyline; File.WriteAllText("C:\\temp\\outputOffsetPolyline_5_.txt", outputOffsetPolyline.ToJson()); } ... View more

This is a bug that will be addressed in a future release. Unfortunately, I can't give you an exact date at this time. I am working on a workaround for you, but I want to test it a little bit more. It will be ready tomorrow.  Regarding SideBuffer, the corners of the buffer will always be round. The LineCapType refers only to the start and end of the line.    ... View more

Hi, I am looking into this. I will respond shortly. Thank you, Annette ... View more