Exemple #1
0
        /// <summary>
        /// overrides the <see cref="CustomEntity.OnDraw(OpenGlDevice)"/> method.
        /// </summary>
        /// <param name="Device"></param>
        protected override void OnDraw(OpenGlDevice Device)
        {
            base.OnDraw(Device);
            if (Transverse == null)
            {
                return;
            }
            if (Transverse.Count == 0)
            {
                return;
            }

            for (int i = 1; i > 0; i--)
            {
                if (Trace[i].dist(Trace[i - 1]) < Utils.epsilon)
                {
                    Trace.RemoveAt(i);
                }
            }
            if ((Trace.Count == 3) && (Trace.Closed()))
            {
                Trace.RemoveAt(2);
            }
            if (Trace.Count <= 1)
            {
                return;
            }
            //    if (Trace.Count <= 1) return;
            xyz Basey = new xyz(0, 0, 0);

            if (Trace.Count == 2)
            {
                Basey = new xyz(0, 0, -1);
                if ((Basey & (Trace[1] - Trace[0])).length() < 0.000001)
                {
                    Basey = new xyz(0, -1, 0);
                }
            }
            else
            {
                Basey = (((Trace[2] - Trace[1]) & (Trace[0] - Trace[1]))).normalized() * (-1);
            }

            for (int i = 0; i < Trace.Count - 1; i++)
            {
                xyz N1, N2;
                if (i == 0)
                {
                    if (Trace.Closed())
                    {
                        N1 = (Trace[i + 1] - Trace[i]).normalized() - (Trace[Trace.Count - 2] - Trace[i]).normalized();
                    }
                    else
                    {
                        N1 = (Trace[i + 1] - Trace[i]).normalized();
                    }

                    if ((i + 2) == Trace.Count)
                    {
                        N2 = (Trace[i] - Trace[i + 1]).normalized() & Basey;
                    }
                    else
                    {
                        N2 = (Trace[i] - Trace[i + 1]).normalized() - (Trace[i + 2] - Trace[i + 1]).normalized();
                    }
                }
                else
                if (i == (Trace.Count - 2))
                {
                    N1 = (Trace[i + 1] - Trace[i]).normalized() - (Trace[i - 1] - Trace[i]).normalized();
                    if (Trace.Closed())
                    {
                        N2 = (Trace[i] - Trace[0]).normalized() - (Trace[1] - Trace[0]).normalized();
                    }
                    else
                    {
                        N2 = (Trace[i] - Trace[Trace.Count - 1]).normalized();
                    }
                }
                else
                {
                    N1 = (Trace[i + 1] - Trace[i]).normalized() - (Trace[i - 1] - Trace[i]).normalized();
                    N2 = (Trace[i] - Trace[i + 1]).normalized() - (Trace[i + 2] - Trace[i + 1]).normalized();
                }
                if (Trace.Count == 2)
                {
                    N1 = Trace[1] - Trace[0];
                    N2 = Trace[0] - Trace[1];
                }
                Plane P1 = new Plane(Trace[i], N1.normalized());
                Plane P2 = new Plane(Trace[i + 1], N2.normalized());

                if (i > 0)
                {
                    Basey = Matrix.Mirror(P1) * Basey - Matrix.Mirror(P1) * new xyz(0, 0, 0);
                }
                Base B = new Base();
                B.BaseO = Trace[i];
                B.BaseZ = (Trace[i + 1] - Trace[i]).normalized();
                B.BaseY = Basey.normalized();
                B.BaseX = (B.BaseY & B.BaseZ).normalized();
                B.BaseY = B.BaseZ & B.BaseX * (-1);



                Matrix BInvert   = B.ToMatrix().invert();
                Plane  DownPlane = BInvert * P1;
                Plane  UpPlane   = BInvert * P2;
                Device.PushMatrix();
                Device.MulMatrix(B.ToMatrix());
                for (int m = 0; m < Transverse.Count; m++)
                {
                    for (int n = 0; n < Transverse[m].Count; n++)
                    {
                        CurveExtruder CE = new CurveExtruder();
                        CE.Height = -1;


                        CE.DownPlane = BInvert * P1;
                        CE.UpPlane   = BInvert * P2;
                        CE.Curve     = Transverse[m][n];
                        CE.Paint(Device);
                        if (Device.RenderKind == RenderKind.SnapBuffer)
                        {
                            SnappItem SI = Selector.StoredSnapItems[Selector.StoredSnapItems.Count - 1];
                            if (SI != null)
                            {
                                SI.OfObject = this;
                            }
                        }
                    }
                }

                double L = (Trace[i + 1] - Trace[i]).length();

                if ((i == 0) && (CloseFirst))
                {
                    Device.drawPolyPolyCurve(Transverse);
                }
                if ((i == Trace.Count - 2) && (CloseLast))
                {
                    Device.PushMatrix();
                    Device.MulMatrix(Matrix.Translation(new xyz(0, 0, L)));
                    Device.drawPolyPolyCurve(Transverse);
                    Device.PopMatrix();
                }
                Device.PopMatrix();
            }
        }