Esempio n. 1
0
        private static bool TryGetArcBoundingBox(DxfLwPolylineVertex v1, DxfLwPolylineVertex v2, out DxfBoundingBox bbox)
        {
            if (!DxfArc.TryCreateFromVertices(v1, v2, out var arc))
            {
                bbox = default(DxfBoundingBox);
                return(false);
            }

            var boundingBox = arc.GetBoundingBox();

            if (!boundingBox.HasValue)
            {
                bbox = default(DxfBoundingBox);
                return(false);
            }

            bbox = boundingBox.Value;
            return(true);
        }
Esempio n. 2
0
        private IEnumerable <DxfPoint> ProcessVertexPair(DxfLwPolylineVertex vertex1, DxfLwPolylineVertex vertex2)
        {
            if (Math.Abs(vertex1.Bulge) <= 1e-10)
            {
                yield return(new DxfPoint(vertex1.X, vertex1.Y, 0));
            }
            else
            {
                // the segment between `vertex.Location` and `next.Location` is an arc
                if (TryGetArcBoundingBox(vertex1, vertex2, out var bbox))
                {
                    yield return(bbox.MinimumPoint);

                    yield return(bbox.MaximumPoint);
                }
                else
                {
                    // fallback if points are too close / bulge is tiny
                    yield return(new DxfPoint(vertex1.X, vertex1.Y, 0));
                }
            }
        }
Esempio n. 3
0
 public static bool TryCreateFromVertices(DxfLwPolylineVertex v1, DxfLwPolylineVertex v2, out DxfArc arc)
 {
     return(TryCreateFromVertices(v1.X, v1.Y, v1.Bulge, v2.X, v2.Y, out arc));
 }