public IDataset Execute(IApplication application)
{
IDataset dataSet = application.CreateDataset("Polygon test");
TestVectors testVectors = dataSet.CreateVectorSetGroup <TestVectors>("Polygons");
PolygonTriangulator polygonTriangulator = new PolygonTriangulator();
Random random = new Random(0);
List <List <PolygonTriangulator.Vertex> > intersectionContourList = new List <List <PolygonTriangulator.Vertex> >();
ITable <TestVectorsFeature2D> featureTable = testVectors.VectorSet2D.FeatureTable;
TestVectorsFeature2D intersectionPolygonFeature = featureTable.AllocateOne();
intersectionPolygonFeature.ID = intersectionPolygonFeature.RowIndex;
foreach (TestVectorsFeature2D polygonFeature in featureTable.AllocateMany((int)PolygonCount.Value))
{
polygonFeature.ID = polygonFeature.RowIndex;
List <PolygonTriangulator.Vertex> contour = new List <PolygonTriangulator.Vertex>();
List <PolygonTriangulator.Vertex> intersectionContour = new List <PolygonTriangulator.Vertex>();
double centreX = random.NextDouble() * 100.0 - 50.0;
double centreY = random.NextDouble() * 80.0 - 40.0;
double radiusX = random.NextDouble() * 28.0 + 4.0;
double radiusY = random.NextDouble() * 28.0 + 4.0;
double z = (double)(polygonFeature.RowIndex - 1) / (double)PolygonCount.Value * 5.0 + 1.0;
int vertexCount = 160;
for (int vertexNum = 0; vertexNum < vertexCount; ++vertexNum)
{
double angle = (double)vertexNum / (double)vertexCount * Math.PI * 2.0;
double radiusScale = random.NextDouble() * 0.0 + 1.0;
double x = centreX + radiusX * radiusScale * Math.Cos(angle);
double y = centreY + radiusY * radiusScale * Math.Sin(angle);
contour.Add(new PolygonTriangulator.Vertex(-1, x, y));
intersectionContour.Add(new PolygonTriangulator.Vertex(-1, x, y));
}
List <List <PolygonTriangulator.Vertex> > contourList = new List <List <PolygonTriangulator.Vertex> >();
contourList.Add(contour);
intersectionContourList.Add(intersectionContour);
List <PolygonTriangulator.Triangle> triangleList;
List <PolygonTriangulator.Vertex> vertexList;
polygonTriangulator.Tesselate(contourList, PolygonTriangulator.WindingRule.Odd, out triangleList, out vertexList);
BuildPolygonPrimitives(testVectors, polygonFeature, z, triangleList, vertexList);
}
List <List <PolygonTriangulator.Vertex> > simplifiedContourList;
polygonTriangulator.Simplify(intersectionContourList, PolygonTriangulator.WindingRule.Odd, out simplifiedContourList);
List <PolygonTriangulator.Triangle> intersectionTriangleList;
List <PolygonTriangulator.Vertex> intersectionVertexList;
polygonTriangulator.Tesselate(simplifiedContourList, PolygonTriangulator.WindingRule.Positive, out intersectionTriangleList, out intersectionVertexList);
BuildPolygonPrimitives(testVectors, intersectionPolygonFeature, 0.0, intersectionTriangleList, intersectionVertexList);
return(dataSet);
}