// private AttributeStreamOfInt32 m_orphanVertices;
private void _beforeRemoveVertex(int vertex, bool bChangePathFirst)
{
int vertexlistIndex = m_shape.GetUserIndex(vertex, m_userIndexSortedIndexToVertex);
if (m_nextVertexToProcess == vertexlistIndex)
{
m_nextVertexToProcess = m_sortedVertices.GetNext(m_nextVertexToProcess);
}
if (m_firstCoincidentVertex == vertexlistIndex)
{
m_firstCoincidentVertex = m_sortedVertices.GetNext(m_firstCoincidentVertex);
}
m_sortedVertices.DeleteElement(m_sortedVerticesListIndex, vertexlistIndex);
_removeAngleSortInfo(vertex);
if (bChangePathFirst)
{
int path = m_shape.GetPathFromVertex(vertex);
if (path != -1)
{
int first = m_shape.GetFirstVertex(path);
if (first == vertex)
{
int next = m_shape.GetNextVertex(vertex);
if (next != vertex)
{
int p = m_shape.GetPathFromVertex(next);
if (p == path)
{
m_shape.SetFirstVertex_(path, next);
return;
}
else
{
int prev = m_shape.GetPrevVertex(vertex);
if (prev != vertex)
{
p = m_shape.GetPathFromVertex(prev);
if (p == path)
{
m_shape.SetFirstVertex_(path, prev);
return;
}
}
}
}
m_shape.SetFirstVertex_(path, -1);
m_shape.SetLastVertex_(path, -1);
}
}
}
}
internal bool ClusterNonReciprocal_()
{
int point_count = m_shape.GetTotalPointCount();
com.epl.geometry.Envelope2D env = m_shape.GetEnvelope2D();
m_origin = env.GetLowerLeft();
double dim = System.Math.Max(env.GetHeight(), env.GetWidth());
double mincell = dim / (com.epl.geometry.NumberUtils.IntMax() - 1);
if (m_cell_size < mincell)
{
m_cell_size = mincell;
m_inv_cell_size = 1.0 / m_cell_size;
}
// This holds clusters.
m_clusters = new com.epl.geometry.IndexMultiList();
m_clusters.ReserveLists(m_shape.GetTotalPointCount() / 3 + 1);
m_clusters.ReserveNodes(m_shape.GetTotalPointCount() / 3 + 1);
m_hash_values = m_shape.CreateUserIndex();
m_new_clusters = m_shape.CreateUserIndex();
// Make the hash table. It serves a purpose of fine grain grid.
// Make it 25% larger than the 4 times point count to reduce the chance
// of collision.
// The 4 times comes from the fact that we check four neighbouring cells
// in the grid for each point.
m_hash_function = new com.epl.geometry.Clusterer.ClusterHashFunction(this, m_shape, m_origin, m_sqr_tolerance, m_inv_cell_size, m_hash_values);
m_hash_table = new com.epl.geometry.IndexHashTable(4 * point_count / 3, m_hash_function);
m_hash_table.ReserveElements(m_shape.GetTotalPointCount());
bool b_clustered = false;
// Go through all vertices stored in the m_shape and put the handles of
// the vertices into the clusters and the hash table.
for (int geometry = m_shape.GetFirstGeometry(); geometry != -1; geometry = m_shape.GetNextGeometry(geometry))
{
for (int path = m_shape.GetFirstPath(geometry); path != -1; path = m_shape.GetNextPath(path))
{
int vertex = m_shape.GetFirstVertex(path);
for (int index = 0, nindex = m_shape.GetPathSize(path); index < nindex; index++)
{
System.Diagnostics.Debug.Assert((vertex != -1));
int hash = m_hash_function.Calculate_hash_from_vertex(vertex);
m_shape.SetUserIndex(vertex, m_hash_values, hash);
m_hash_table.AddElement(vertex, hash);
// add cluster to the
// hash table
System.Diagnostics.Debug.Assert((m_shape.GetUserIndex(vertex, m_new_clusters) == -1));
vertex = m_shape.GetNextVertex(vertex);
}
}
}
{
// m_hash_table->dbg_print_bucket_histogram_();
// scope for candidates array
com.epl.geometry.AttributeStreamOfInt32 candidates = new com.epl.geometry.AttributeStreamOfInt32(0);
candidates.Reserve(10);
for (int geometry_1 = m_shape.GetFirstGeometry(); geometry_1 != -1; geometry_1 = m_shape.GetNextGeometry(geometry_1))
{
for (int path = m_shape.GetFirstPath(geometry_1); path != -1; path = m_shape.GetNextPath(path))
{
int vertex = m_shape.GetFirstVertex(path);
for (int index = 0, nindex = m_shape.GetPathSize(path); index < nindex; index++)
{
if (m_shape.GetUserIndex(vertex, m_new_clusters) == com.epl.geometry.StridedIndexTypeCollection.ImpossibleIndex2())
{
vertex = m_shape.GetNextVertex(vertex);
continue;
}
// this vertex was merged with another
// cluster. It also was removed from the
// hash table.
int hash = m_shape.GetUserIndex(vertex, m_hash_values);
m_hash_table.DeleteElement(vertex, hash);
while (true)
{
CollectClusterCandidates_(vertex, candidates);
if (candidates.Size() == 0)
{
// no candidate for
// clustering has
// been found for
// the cluster_1.
break;
}
bool clustered = false;
for (int candidate_index = 0, ncandidates = candidates.Size(); candidate_index < ncandidates; candidate_index++)
{
int cluster_node = candidates.Get(candidate_index);
int other_vertex = m_hash_table.GetElement(cluster_node);
m_hash_table.DeleteNode(cluster_node);
clustered |= MergeClusters_(vertex, other_vertex, candidate_index + 1 == ncandidates);
}
b_clustered |= clustered;
candidates.Clear(false);
// repeat search for the cluster candidates for
// cluster_1
if (!clustered)
{
break;
}
}
// positions did not change
// m_shape->set_user_index(vertex, m_new_clusters,
// Strided_index_type_collection::impossible_index_2());
vertex = m_shape.GetNextVertex(vertex);
}
}
}
}
if (b_clustered)
{
ApplyClusterPositions_();
}
m_hash_table = null;
m_hash_function = null;
m_shape.RemoveUserIndex(m_hash_values);
m_shape.RemoveUserIndex(m_new_clusters);
// output_debug_printf("total: %d\n",m_shape->get_total_point_count());
// output_debug_printf("clustered: %d\n",m_dbg_candidate_check_count);
return(b_clustered);
}
internal virtual bool FixRingOrientation_()
{
bool bFound = false;
if (m_fixSelfTangency)
{
bFound = FixRingSelfTangency_();
}
if (m_shape.GetPathCount(m_geometry) == 1)
{
int path = m_shape.GetFirstPath(m_geometry);
double area = m_shape.GetRingArea(path);
m_shape.SetExterior(path, true);
if (area < 0)
{
int first = m_shape.GetFirstVertex(path);
m_shape.ReverseRingInternal_(first);
m_shape.SetLastVertex_(path, m_shape.GetPrevVertex(first));
// fix
// last
// after
// the
// reverse
return(true);
}
return(false);
}
m_path_orientation_index = m_shape.CreatePathUserIndex();
// used to
// store
// discovered
// orientation
// (3 -
// extrior,
// 2 -
// interior)
m_path_parentage_index = m_shape.CreatePathUserIndex();
// used to
// resolve OGC
// order
for (int path_1 = m_shape.GetFirstPath(m_geometry); path_1 != -1; path_1 = m_shape.GetNextPath(path_1))
{
m_shape.SetPathUserIndex(path_1, m_path_orientation_index, 0);
m_shape.SetPathUserIndex(path_1, m_path_parentage_index, -1);
}
com.epl.geometry.AttributeStreamOfInt32 bunch = new com.epl.geometry.AttributeStreamOfInt32(0);
m_y_scanline = com.epl.geometry.NumberUtils.TheNaN;
com.epl.geometry.Point2D pt = new com.epl.geometry.Point2D();
m_unknown_ring_orientation_count = m_shape.GetPathCount(m_geometry);
m_node_1_user_index = m_shape.CreateUserIndex();
m_node_2_user_index = m_shape.CreateUserIndex();
for (int ivertex = m_sorted_vertices.GetFirst(m_sorted_vertices.GetFirstList()); ivertex != -1; ivertex = m_sorted_vertices.GetNext(ivertex))
{
int vertex = m_sorted_vertices.GetData(ivertex);
m_shape.GetXY(vertex, pt);
if (pt.y != m_y_scanline && bunch.Size() != 0)
{
bFound |= ProcessBunchForRingOrientationTest_(bunch);
m_sweep_comparator.Reset();
bunch.Clear(false);
}
bunch.Add(vertex);
// all vertices that have same y are added to the
// bunch
m_y_scanline = pt.y;
if (m_unknown_ring_orientation_count == 0)
{
break;
}
}
if (m_unknown_ring_orientation_count > 0)
{
bFound |= ProcessBunchForRingOrientationTest_(bunch);
bunch.Clear(false);
}
m_shape.RemoveUserIndex(m_node_1_user_index);
m_shape.RemoveUserIndex(m_node_2_user_index);
// dbg_verify_ring_orientation_();//debug
for (int path_2 = m_shape.GetFirstPath(m_geometry); path_2 != -1;)
{
if (m_shape.GetPathUserIndex(path_2, m_path_orientation_index) == 3)
{
// exterior
m_shape.SetExterior(path_2, true);
int afterPath = path_2;
for (int nextHole = m_shape.GetPathUserIndex(path_2, m_path_parentage_index); nextHole != -1;)
{
int p = m_shape.GetPathUserIndex(nextHole, m_path_parentage_index);
m_shape.MovePath(m_geometry, m_shape.GetNextPath(afterPath), nextHole);
afterPath = nextHole;
nextHole = p;
}
path_2 = m_shape.GetNextPath(afterPath);
}
else
{
m_shape.SetExterior(path_2, false);
path_2 = m_shape.GetNextPath(path_2);
}
}
m_shape.RemovePathUserIndex(m_path_orientation_index);
m_shape.RemovePathUserIndex(m_path_parentage_index);
return(bFound);
}
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);
}
}