Add examples project.

src/Triangle.Examples/Examples/Example2.cs

@@ -0,0 +1,46 @@
+namespace TriangleNet.Examples
+{
+    using TriangleNet.Geometry;
+    using TriangleNet.Meshing;
+    using TriangleNet.Rendering.Text;
+
+    /// <summary>
+    /// Triangulate a polygon with hole and set minimum angle constraint.
+    /// </summary>
+    public static class Example2
+    {
+        public static void Run(bool print = false)
+        {
+            // Generate the input geometry.
+            var poly = CreatePolygon();
+
+            // Set minimum angle quality option.
+            var quality = new QualityOptions() { MinimumAngle = 30.0 };
+
+            // Generate mesh using the polygons Triangulate extension method.
+            var mesh = poly.Triangulate(quality);
+
+            if (print) SvgImage.Save(mesh, "example-2.png", 500);
+        }
+
+        public static IPolygon CreatePolygon(double h = 0.2)
+        {
+            // Generate the input geometry.
+            var poly = new Polygon();
+
+            // Center point.
+            var center = new Point(0, 0);
+
+            // Inner contour (hole).
+            poly.Add(Generate.Circle(1.0, center, h, 1), center);
+
+            // Internal contour.
+            poly.Add(Generate.Circle(2.0, center, h, 2));
+
+            // Outer contour.
+            poly.Add(Generate.Circle(3.0, center, h, 3));
+
+            return poly;
+        }
+    }
+}