Inheritance: PrimitiveRecognizer
        public static PrimitiveRecognizer Create(DrawMode mode)
        {
            PrimitiveRecognizer recognizer = null;

            switch (mode)
            {
                case DrawMode.Points:
                    recognizer = new PointsRecognizer();
                    break;
                case DrawMode.LineStrip:
                    recognizer = new LineStripRecognizer();
                    break;
                case DrawMode.LineLoop:
                    recognizer = new LineLoopRecognizer();
                    break;
                case DrawMode.Lines:
                    recognizer = new LinesRecognizer();
                    break;
                case DrawMode.LineStripAdjacency:
                    break;
                case DrawMode.LinesAdjacency:
                    break;
                case DrawMode.TriangleStrip:
                    recognizer = new TriangleStripRecognizer();
                    break;
                case DrawMode.TriangleFan:
                    recognizer = new TriangleFanRecognizer();
                    break;
                case DrawMode.Triangles:
                    recognizer = new TrianglesRecognizer();
                    break;
                case DrawMode.TriangleStripAdjacency:
                    break;
                case DrawMode.TrianglesAdjacency:
                    break;
                case DrawMode.Patches:
                    break;
                case DrawMode.QuadStrip:
                    recognizer = new QuadStripRecognizer();
                    break;
                case DrawMode.Quads:
                    recognizer = new QuadsRecognizer();
                    break;
                case DrawMode.Polygon:
                    break;
                default:
                    break;
            }

            if (recognizer == null)
            {
                throw new NotImplementedException(string.Format(
                    "尚未实现[{0}]的recognizer!", mode));
            }

            return recognizer;
        }
        public static PrimitiveRecognizer Create(DrawMode mode)
        {
            PrimitiveRecognizer recognizer = null;

            switch (mode)
            {
            case DrawMode.Points:
                recognizer = new PointsRecognizer();
                break;

            case DrawMode.LineStrip:
                recognizer = new LineStripRecognizer();
                break;

            case DrawMode.LineLoop:
                recognizer = new LineLoopRecognizer();
                break;

            case DrawMode.Lines:
                recognizer = new LinesRecognizer();
                break;

            case DrawMode.LineStripAdjacency:
                break;

            case DrawMode.LinesAdjacency:
                break;

            case DrawMode.TriangleStrip:
                recognizer = new TriangleStripRecognizer();
                break;

            case DrawMode.TriangleFan:
                recognizer = new TriangleFanRecognizer();
                break;

            case DrawMode.Triangles:
                recognizer = new TrianglesRecognizer();
                break;

            case DrawMode.TriangleStripAdjacency:
                break;

            case DrawMode.TrianglesAdjacency:
                break;

            case DrawMode.Patches:
                break;

            case DrawMode.QuadStrip:
                recognizer = new QuadStripRecognizer();
                break;

            case DrawMode.Quads:
                recognizer = new QuadsRecognizer();
                break;

            case DrawMode.Polygon:
                break;

            default:
                break;
            }

            if (recognizer == null)
            {
                throw new NotImplementedException(string.Format(
                                                      "尚未实现[{0}]的recognizer!", mode));
            }

            return(recognizer);
        }