public void SplitAtJoin2()
{
var sortedVertices = new[]
{
new Vertex(0.0f, 0.0f), // 0 0
new Vertex(1.0f, 0.5f), // 6 1
new Vertex(1.5f, 1.0f), // 7 2
new Vertex(2.0f, 0.0f), // 4 3
new Vertex(3.0f, 0.5f), // 5 4
new Vertex(3.5f, 0.0f), // 3 5
new Vertex(4.0f, 4.0f), // 1 6
new Vertex(5.0f, 0.0f), // 2 7
};
var polygon1 = Polygon.Build(sortedVertices)
.AddVertices(3, 0, 6, 7, 5)
.ClosePartialPolygon()
.AddVertices(4, 2, 1)
.Close();
var triangleCollector = PolygonTriangulator.CreateTriangleCollector();
var triangluator = new PolygonTriangulator(polygon1);
var splits = string.Join(" ", triangluator.GetSplits().OrderBy(x => x.Item1).ThenBy(x => x.Item2).Select(x => $"{x.Item1}-{x.Item2}"));
Assert.AreEqual("0-1 1-3 3-4 4-5 5-6", splits);
var specialSplits = new[] { (4, 5), (3, 4), (0, 1), (1, 3), (5, 6) }
private void triangulateButton_Click(object sender, EventArgs e)
{
this.vertexText.Text = string.Empty;
var lines = new List <string>();
var collector = PolygonTriangulator.CreateTriangleCollector();
try
{
var triangulator = new PolygonTriangulator(this.controller.Polygon);
var splits = triangulator.GetSplits();
lines.Add("Splits");
lines.AddRange(splits.Select(x => $"{x.Item1} - {x.Item2}"));
lines.Add("");
var monotones = Polygon.Split(this.controller.Polygon, splits, PolygonTriangulator.CreateTriangleCollector());
lines.Add("Monotones");
lines.AddRange(monotones.SubPolygonIds.Select(x => string.Join(" ", monotones.SubPolygonVertices(x))));
lines.Add("");
triangulator.BuildTriangles(collector);
}
catch (Exception ex)
{
this.vertexText.Text = ex.ToString();
}
var triangles = collector.Triangles;
lines.Add("Triangles");
for (int i = 0; i < triangles.Length; i += 3)
{
lines.Add($"{triangles[i + 0]} {triangles[i + 1]} {triangles[i + 2]} ");
}
this.vertexText.Text += string.Join(Environment.NewLine, lines);
this.polygonPanel.AutoScale();
}