public static int IsPointInPolygon(com.epl.geometry.Polygon inputPolygon, com.epl.geometry.Point2D inputPoint, double tolerance) { if (inputPolygon.IsEmpty()) { return(0); } com.epl.geometry.Envelope2D env = new com.epl.geometry.Envelope2D(); inputPolygon.QueryLooseEnvelope(env); env.Inflate(tolerance, tolerance); if (!env.Contains(inputPoint)) { return(0); } com.epl.geometry.MultiPathImpl mpImpl = (com.epl.geometry.MultiPathImpl)inputPolygon._getImpl(); com.epl.geometry.GeometryAccelerators accel = mpImpl._getAccelerators(); if (accel != null) { // geometry has spatial indices built. Try using them. com.epl.geometry.RasterizedGeometry2D rgeom = accel.GetRasterizedGeometry(); if (rgeom != null) { com.epl.geometry.RasterizedGeometry2D.HitType hit = rgeom.QueryPointInGeometry(inputPoint.x, inputPoint.y); if (hit == com.epl.geometry.RasterizedGeometry2D.HitType.Inside) { return(1); } else { if (hit == com.epl.geometry.RasterizedGeometry2D.HitType.Outside) { return(0); } } } com.epl.geometry.QuadTreeImpl qtree = accel.GetQuadTree(); if (qtree != null) { return(_isPointInPolygonInternalWithQuadTree(inputPolygon, qtree, inputPoint, tolerance)); } } return(_isPointInPolygonInternal(inputPolygon, inputPoint, tolerance)); }
internal static int IsPointInPolygon(com.epl.geometry.Polygon inputPolygon, double inputPointXVal, double inputPointYVal, double tolerance) { if (inputPolygon.IsEmpty()) { return(0); } com.epl.geometry.Envelope2D env = new com.epl.geometry.Envelope2D(); inputPolygon.QueryLooseEnvelope(env); env.Inflate(tolerance, tolerance); if (!env.Contains(inputPointXVal, inputPointYVal)) { return(0); } com.epl.geometry.MultiPathImpl mpImpl = (com.epl.geometry.MultiPathImpl)inputPolygon._getImpl(); com.epl.geometry.GeometryAccelerators accel = mpImpl._getAccelerators(); if (accel != null) { com.epl.geometry.RasterizedGeometry2D rgeom = accel.GetRasterizedGeometry(); if (rgeom != null) { com.epl.geometry.RasterizedGeometry2D.HitType hit = rgeom.QueryPointInGeometry(inputPointXVal, inputPointYVal); if (hit == com.epl.geometry.RasterizedGeometry2D.HitType.Inside) { return(1); } else { if (hit == com.epl.geometry.RasterizedGeometry2D.HitType.Outside) { return(0); } } } } return(_isPointInPolygonInternal(inputPolygon, new com.epl.geometry.Point2D(inputPointXVal, inputPointYVal), tolerance)); }
// no cuts private void Generate_polygon_cuts_() { com.epl.geometry.AttributeStreamOfInt32 cutHandles = new com.epl.geometry.AttributeStreamOfInt32(0); com.epl.geometry.EditShape shape = new com.epl.geometry.EditShape(); int sideIndex = shape.CreateGeometryUserIndex(); int cutteeHandle = shape.AddGeometry(m_cuttee); int cutterHandle = shape.AddGeometry(m_cutter); com.epl.geometry.TopologicalOperations topoOp = new com.epl.geometry.TopologicalOperations(); try { topoOp.SetEditShapeCrackAndCluster(shape, m_tolerance, m_progressTracker); topoOp.Cut(sideIndex, cutteeHandle, cutterHandle, cutHandles); com.epl.geometry.Polygon cutteeRemainder = (com.epl.geometry.Polygon)shape.GetGeometry(cutteeHandle); com.epl.geometry.MultiPath left = new com.epl.geometry.Polygon(); com.epl.geometry.MultiPath right = new com.epl.geometry.Polygon(); m_cuts.Clear(); m_cuts.Add(left); m_cuts.Add(right); for (int icutIndex = 0; icutIndex < cutHandles.Size(); icutIndex++) { com.epl.geometry.Geometry cutGeometry; { // intersection com.epl.geometry.EditShape shapeIntersect = new com.epl.geometry.EditShape(); int geometryA = shapeIntersect.AddGeometry(cutteeRemainder); int geometryB = shapeIntersect.AddGeometry(shape.GetGeometry(cutHandles.Get(icutIndex))); topoOp.SetEditShape(shapeIntersect, m_progressTracker); int intersectHandle = topoOp.Intersection(geometryA, geometryB); cutGeometry = shapeIntersect.GetGeometry(intersectHandle); if (cutGeometry.IsEmpty()) { continue; } int side = shape.GetGeometryUserIndex(cutHandles.Get(icutIndex), sideIndex); if (side == 2) { left.Add((com.epl.geometry.MultiPath)cutGeometry, false); } else { if (side == 1) { right.Add((com.epl.geometry.MultiPath)cutGeometry, false); } else { m_cuts.Add((com.epl.geometry.MultiPath)cutGeometry); } } } { // Undefined // difference com.epl.geometry.EditShape shapeDifference = new com.epl.geometry.EditShape(); int geometryA = shapeDifference.AddGeometry(cutteeRemainder); int geometryB = shapeDifference.AddGeometry(shape.GetGeometry(cutHandles.Get(icutIndex))); topoOp.SetEditShape(shapeDifference, m_progressTracker); cutteeRemainder = (com.epl.geometry.Polygon)shapeDifference.GetGeometry(topoOp.Difference(geometryA, geometryB)); } } if (!cutteeRemainder.IsEmpty() && cutHandles.Size() > 0) { m_cuts.Add((com.epl.geometry.MultiPath)cutteeRemainder); } if (left.IsEmpty() && right.IsEmpty()) { m_cuts.Clear(); } } finally { // no cuts topoOp.RemoveShape(); } }
public static void TestDifferenceAndSymmetricDifference() { com.epl.geometry.OperatorFactoryLocal engine = com.epl.geometry.OperatorFactoryLocal.GetInstance(); com.epl.geometry.OperatorDifference differenceOp = (com.epl.geometry.OperatorDifference)engine.GetOperator(com.epl.geometry.Operator.Type.Difference); com.epl.geometry.SpatialReference spatialRef = com.epl.geometry.SpatialReference.Create(102113); com.epl.geometry.Polygon polygon1 = MakePolygon1(); com.epl.geometry.Polygon polygon2 = MakePolygon2(); com.epl.geometry.Polyline polyline1 = MakePolyline1(); com.epl.geometry.MultiPoint multipoint1 = MakeMultiPoint1(); com.epl.geometry.MultiPoint multipoint2 = MakeMultiPoint2(); com.epl.geometry.MultiPoint multipoint3 = MakeMultiPoint3(); com.epl.geometry.Point point1 = MakePoint1(); com.epl.geometry.Point point2 = MakePoint2(); com.epl.geometry.Envelope envelope1 = MakeEnvelope1(); com.epl.geometry.Envelope envelope2 = MakeEnvelope2(); com.epl.geometry.Envelope envelope3 = MakeEnvelope3(); com.epl.geometry.Polygon outputPolygon = (com.epl.geometry.Polygon)differenceOp.Execute(polygon1, polygon2, spatialRef, null); double area = outputPolygon.CalculateArea2D(); NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 75) <= 0.001); { com.epl.geometry.Point point_1 = new com.epl.geometry.Point(-130, 10); com.epl.geometry.Point point_2 = new com.epl.geometry.Point(-130, 10); com.epl.geometry.Geometry baseGeom = new com.epl.geometry.Point(point_1.GetX(), point_1.GetY()); com.epl.geometry.Geometry comparisonGeom = new com.epl.geometry.Point(point_2.GetX(), point2.GetY()); com.epl.geometry.SpatialReference sr = com.epl.geometry.SpatialReference.Create(4326); com.epl.geometry.Geometry geom = differenceOp.Execute(baseGeom, comparisonGeom, sr, null); } com.epl.geometry.OperatorSymmetricDifference symDifferenceOp = (com.epl.geometry.OperatorSymmetricDifference)engine.GetOperator(com.epl.geometry.Operator.Type.SymmetricDifference); outputPolygon = (com.epl.geometry.Polygon)symDifferenceOp.Execute(polygon1, polygon2, spatialRef, null); area = outputPolygon.CalculateArea2D(); NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 150) <= 0.001); com.epl.geometry.Polyline outputPolyline = (com.epl.geometry.Polyline)differenceOp.Execute(polyline1, polygon1, spatialRef, null); double length = outputPolyline.CalculateLength2D(); NUnit.Framework.Assert.IsTrue(System.Math.Abs(length * length - 50) < 0.001); com.epl.geometry.MultiPoint outputMultiPoint = (com.epl.geometry.MultiPoint)differenceOp.Execute(multipoint1, polygon1, spatialRef, null); int pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 1); outputMultiPoint = (com.epl.geometry.MultiPoint)(symDifferenceOp.Execute(multipoint1, point1, spatialRef, null)); pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 2); outputMultiPoint = (com.epl.geometry.MultiPoint)(symDifferenceOp.Execute(multipoint1, point2, spatialRef, null)); pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 4); outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint1, point1, spatialRef, null)); pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 2); outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint1, point2, spatialRef, null)); pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 3); outputPolygon = (com.epl.geometry.Polygon)(differenceOp.Execute(polygon1, envelope1, spatialRef, null)); area = outputPolygon.CalculateArea2D(); NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 75) <= 0.001); outputPolygon = (com.epl.geometry.Polygon)(differenceOp.Execute(polygon2, envelope2, spatialRef, null)); area = outputPolygon.CalculateArea2D(); NUnit.Framework.Assert.IsTrue(System.Math.Abs(area - 75) <= 0.001); outputPolyline = (com.epl.geometry.Polyline)(differenceOp.Execute(polyline1, envelope2, spatialRef, null)); length = outputPolyline.CalculateLength2D(); NUnit.Framework.Assert.IsTrue(System.Math.Abs(length * length - 50) <= 0.001); outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint1, envelope2, spatialRef, null)); pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 1); outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint2, envelope2, spatialRef, null)); pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 6); outputMultiPoint = (com.epl.geometry.MultiPoint)(differenceOp.Execute(multipoint3, envelope2, spatialRef, null)); pointCount = outputMultiPoint.GetPointCount(); NUnit.Framework.Assert.IsTrue(pointCount == 0); com.epl.geometry.Point outputPoint = (com.epl.geometry.Point)(differenceOp.Execute(point1, envelope2, spatialRef, null)); NUnit.Framework.Assert.IsTrue(!outputPoint.IsEmpty()); outputPoint = (com.epl.geometry.Point)(differenceOp.Execute(point2, envelope2, spatialRef, null)); NUnit.Framework.Assert.IsTrue(outputPoint.IsEmpty()); outputPolygon = (com.epl.geometry.Polygon)(differenceOp.Execute(envelope3, envelope2, spatialRef, null)); NUnit.Framework.Assert.IsTrue(outputPolygon != null && outputPolygon.IsEmpty()); outputPolygon = (com.epl.geometry.Polygon)(symDifferenceOp.Execute(envelope3, envelope3, spatialRef, null)); NUnit.Framework.Assert.IsTrue(outputPolygon != null && outputPolygon.IsEmpty()); outputPoint = (com.epl.geometry.Point)(differenceOp.Execute(point1, polygon1, spatialRef, null)); NUnit.Framework.Assert.IsTrue(outputPoint != null); }
public static void TestEditShape__() { { // Single part polygon com.epl.geometry.Polygon poly = new com.epl.geometry.Polygon(); poly.StartPath(10, 10); poly.LineTo(10, 12); poly.LineTo(14, 15); poly.LineTo(10, 11); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); com.epl.geometry.Polygon poly2 = (com.epl.geometry.Polygon)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(poly.Equals(poly2)); } { // Two part poly com.epl.geometry.Polygon poly = new com.epl.geometry.Polygon(); poly.StartPath(10, 10); poly.LineTo(10, 12); poly.LineTo(14, 15); poly.LineTo(10, 11); poly.StartPath(100, 10); poly.LineTo(100, 12); poly.LineTo(14, 150); poly.LineTo(10, 101); poly.LineTo(100, 11); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); com.epl.geometry.Polygon poly2 = (com.epl.geometry.Polygon)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(poly.Equals(poly2)); } { // Single part polyline com.epl.geometry.Polyline poly = new com.epl.geometry.Polyline(); poly.StartPath(10, 10); poly.LineTo(10, 12); poly.LineTo(14, 15); poly.LineTo(10, 11); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); com.epl.geometry.Polyline poly2 = (com.epl.geometry.Polyline)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(poly.Equals(poly2)); } { // Two part poly com.epl.geometry.Polyline poly = new com.epl.geometry.Polyline(); poly.StartPath(10, 10); poly.LineTo(10, 12); poly.LineTo(14, 15); poly.LineTo(10, 11); poly.StartPath(100, 10); poly.LineTo(100, 12); poly.LineTo(14, 150); poly.LineTo(10, 101); poly.LineTo(100, 11); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); com.epl.geometry.Polyline poly2 = (com.epl.geometry.Polyline)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(poly.Equals(poly2)); } { // Five part poly. Close one of parts to test if it works. com.epl.geometry.Polyline poly = new com.epl.geometry.Polyline(); poly.StartPath(10, 10); poly.LineTo(10, 12); poly.LineTo(14, 15); poly.LineTo(10, 11); poly.StartPath(100, 10); poly.LineTo(100, 12); poly.LineTo(14, 150); poly.LineTo(10, 101); poly.LineTo(100, 11); poly.StartPath(1100, 101); poly.LineTo(1300, 132); poly.LineTo(144, 150); poly.LineTo(106, 1051); poly.LineTo(1600, 161); poly.StartPath(100, 190); poly.LineTo(1800, 192); poly.LineTo(184, 8150); poly.LineTo(1080, 181); poly.StartPath(1030, 10); poly.LineTo(1300, 132); poly.LineTo(314, 3150); poly.LineTo(310, 1301); poly.LineTo(3100, 311); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); editShape.SetClosedPath(editShape.GetNextPath(editShape.GetFirstPath(geom)), true); ((com.epl.geometry.MultiPathImpl)poly._getImpl()).ClosePathWithLine(1); com.epl.geometry.Polyline poly2 = (com.epl.geometry.Polyline)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(poly.Equals(poly2)); } { // Test erase com.epl.geometry.Polyline poly = new com.epl.geometry.Polyline(); poly.StartPath(10, 10); poly.LineTo(10, 12); poly.LineTo(314, 3150); poly.LineTo(310, 1301); poly.LineTo(3100, 311); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); int vertex = editShape.GetFirstVertex(editShape.GetFirstPath(geom)); vertex = editShape.RemoveVertex(vertex, true); vertex = editShape.GetNextVertex(vertex); editShape.RemoveVertex(vertex, true); com.epl.geometry.Polyline poly2 = (com.epl.geometry.Polyline)editShape.GetGeometry(geom); poly.SetEmpty(); poly.StartPath(10, 12); poly.LineTo(310, 1301); poly.LineTo(3100, 311); NUnit.Framework.Assert.IsTrue(poly.Equals(poly2)); } { // Test erase com.epl.geometry.Polygon poly = new com.epl.geometry.Polygon(); poly.StartPath(10, 10); poly.LineTo(10, 12); poly.LineTo(314, 3150); poly.LineTo(310, 1301); poly.LineTo(3100, 311); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); int vertex = editShape.GetFirstVertex(editShape.GetFirstPath(geom)); vertex = editShape.RemoveVertex(vertex, true); vertex = editShape.GetNextVertex(vertex); editShape.RemoveVertex(vertex, true); com.epl.geometry.Polygon poly2 = (com.epl.geometry.Polygon)editShape.GetGeometry(geom); poly.SetEmpty(); poly.StartPath(10, 12); poly.LineTo(310, 1301); poly.LineTo(3100, 311); NUnit.Framework.Assert.IsTrue(poly.Equals(poly2)); } { // Test Filter Close Points com.epl.geometry.Polygon poly = new com.epl.geometry.Polygon(); poly.StartPath(10, 10); poly.LineTo(10, 10.001); poly.LineTo(10.001, 10); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); editShape.FilterClosePoints(0.002, true, false); com.epl.geometry.Polygon poly2 = (com.epl.geometry.Polygon)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(poly2.IsEmpty()); } { // Test Filter Close Points com.epl.geometry.Polygon poly = new com.epl.geometry.Polygon(); poly.StartPath(10, 10); poly.LineTo(10, 10.0025); poly.LineTo(11.0, 10); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); editShape.FilterClosePoints(0.002, true, false); com.epl.geometry.Polygon poly2 = (com.epl.geometry.Polygon)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(!poly2.IsEmpty()); } { // Test Filter Close Points com.epl.geometry.Polygon poly = new com.epl.geometry.Polygon(); poly.StartPath(10, 10); poly.LineTo(10, 10.001); poly.LineTo(11.0, 10); com.epl.geometry.EditShape editShape = new com.epl.geometry.EditShape(); int geom = editShape.AddGeometry(poly); editShape.FilterClosePoints(0.002, true, false); com.epl.geometry.Polygon poly2 = (com.epl.geometry.Polygon)editShape.GetGeometry(geom); NUnit.Framework.Assert.IsTrue(poly2.IsEmpty()); } { // Test attribute splitting 1 com.epl.geometry.Polyline polyline = new com.epl.geometry.Polyline(); polyline.StartPath(0, 0); polyline.LineTo(1, 1); polyline.LineTo(2, 2); polyline.LineTo(3, 3); polyline.LineTo(4, 4); polyline.StartPath(5, 5); polyline.LineTo(6, 6); polyline.LineTo(7, 7); polyline.LineTo(8, 8); polyline.LineTo(9, 9); polyline.AddAttribute(com.epl.geometry.VertexDescription.Semantics.Z); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 0, 0, 4); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 1, 0, 8); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 2, 0, 12); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 3, 0, 16); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 4, 0, 20); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 5, 0, 22); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 6, 0, 26); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 7, 0, 30); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 8, 0, 34); polyline.SetAttribute(com.epl.geometry.VertexDescription.Semantics.Z, 9, 0, 38); com.epl.geometry.EditShape shape = new com.epl.geometry.EditShape(); int geometry = shape.AddGeometry(polyline); com.epl.geometry.AttributeStreamOfInt32 vertex_handles = new com.epl.geometry.AttributeStreamOfInt32(0); for (int path = shape.GetFirstPath(geometry); path != -1; path = shape.GetNextPath(path)) { for (int vertex = shape.GetFirstVertex(path); vertex != -1; vertex = shape.GetNextVertex(vertex)) { if (vertex != shape.GetLastVertex(path)) { vertex_handles.Add(vertex); } } } double[] t = new double[1]; for (int i = 0; i < vertex_handles.Size(); i++) { int vertex = vertex_handles.Read(i); t[0] = 0.5; shape.SplitSegment(vertex, t, 1); } com.epl.geometry.Polyline chopped_polyline = (com.epl.geometry.Polyline)shape.GetGeometry(geometry); NUnit.Framework.Assert.IsTrue(chopped_polyline.GetPointCount() == 18); double att_ = 4; for (int i_1 = 0; i_1 < 18; i_1++) { double att = chopped_polyline.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.Z, i_1, 0); NUnit.Framework.Assert.IsTrue(att == att_); att_ += 2; } } { // Test attribute splitting 2 com.epl.geometry.Polyline line1 = new com.epl.geometry.Polyline(); com.epl.geometry.Polyline line2 = new com.epl.geometry.Polyline(); line1.AddAttribute(com.epl.geometry.VertexDescription.Semantics.M); line2.AddAttribute(com.epl.geometry.VertexDescription.Semantics.M); line1.StartPath(0, 0); line1.LineTo(10, 10); line2.StartPath(10, 0); line2.LineTo(0, 10); line1.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 0, 0, 7); line1.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 1, 0, 17); line2.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 0, 0, 5); line2.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 1, 0, 15); com.epl.geometry.EditShape shape = new com.epl.geometry.EditShape(); int g1 = shape.AddGeometry(line1); int g2 = shape.AddGeometry(line2); com.epl.geometry.CrackAndCluster.Execute(shape, 0.001, null, true); com.epl.geometry.Polyline chopped_line1 = (com.epl.geometry.Polyline)shape.GetGeometry(g1); com.epl.geometry.Polyline chopped_line2 = (com.epl.geometry.Polyline)shape.GetGeometry(g2); double att1 = chopped_line1.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 1, 0); double att2 = chopped_line2.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 1, 0); NUnit.Framework.Assert.IsTrue(att1 == 12); NUnit.Framework.Assert.IsTrue(att2 == 10); } { // Test attribute splitting 3 com.epl.geometry.Polygon polygon = new com.epl.geometry.Polygon(); polygon.AddAttribute(com.epl.geometry.VertexDescription.Semantics.M); polygon.StartPath(0, 0); polygon.LineTo(0, 10); polygon.LineTo(10, 10); polygon.LineTo(10, 0); polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 0, 0, 7); polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 1, 0, 17); polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 2, 0, 23); polygon.SetAttribute(com.epl.geometry.VertexDescription.Semantics.M, 3, 0, 43); com.epl.geometry.EditShape shape = new com.epl.geometry.EditShape(); int geometry = shape.AddGeometry(polygon); com.epl.geometry.AttributeStreamOfInt32 vertex_handles = new com.epl.geometry.AttributeStreamOfInt32(0); int start_v = shape.GetFirstVertex(shape.GetFirstPath(geometry)); int v = start_v; do { vertex_handles.Add(v); v = shape.GetNextVertex(v); }while (v != start_v); double[] t = new double[1]; for (int i = 0; i < vertex_handles.Size(); i++) { int v1 = vertex_handles.Read(i); t[0] = 0.5; shape.SplitSegment(v1, t, 1); } com.epl.geometry.Polygon cut_polygon = (com.epl.geometry.Polygon)shape.GetGeometry(geometry); NUnit.Framework.Assert.IsTrue(cut_polygon.GetPointCount() == 8); com.epl.geometry.Point2D pt0 = cut_polygon.GetXY(0); double a0 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 0, 0); NUnit.Framework.Assert.IsTrue(a0 == 25); com.epl.geometry.Point2D pt1 = cut_polygon.GetXY(1); double a1 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 1, 0); NUnit.Framework.Assert.IsTrue(a1 == 7); com.epl.geometry.Point2D pt2 = cut_polygon.GetXY(2); double a2 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 2, 0); NUnit.Framework.Assert.IsTrue(a2 == 12); com.epl.geometry.Point2D pt3 = cut_polygon.GetXY(3); double a3 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 3, 0); NUnit.Framework.Assert.IsTrue(a3 == 17); com.epl.geometry.Point2D pt4 = cut_polygon.GetXY(4); double a4 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 4, 0); NUnit.Framework.Assert.IsTrue(a4 == 20); com.epl.geometry.Point2D pt5 = cut_polygon.GetXY(5); double a5 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 5, 0); NUnit.Framework.Assert.IsTrue(a5 == 23); com.epl.geometry.Point2D pt6 = cut_polygon.GetXY(6); double a6 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 6, 0); NUnit.Framework.Assert.IsTrue(a6 == 33); com.epl.geometry.Point2D pt7 = cut_polygon.GetXY(7); double a7 = cut_polygon.GetAttributeAsDbl(com.epl.geometry.VertexDescription.Semantics.M, 7, 0); NUnit.Framework.Assert.IsTrue(a7 == 43); } }