Canguro.Controller.Snap.SnapPainter.drawPointSymbol C# (CSharp) Метод

        private void drawPointSymbol(Device device, float x, float y, PointMagnetType type, byte alpha)
        {
            // Get color
            Color color;
            if (alpha == 255)
                color = Color.Gold;
            else
                color = Color.FromArgb(alpha, Color.OrangeRed);

            Cull cull = device.RenderState.CullMode;
            bool alphaEnable = device.RenderState.AlphaBlendEnable;

            device.RenderState.CullMode = Cull.None;
            device.RenderState.AlphaBlendEnable = true;
            device.RenderState.SourceBlend = Blend.BothSourceAlpha;
            device.RenderState.DestinationBlend = Blend.DestinationColor;

            switch (type)
            {
                case PointMagnetType.EndPoint:
                    drawEndPoint(device, x, y, color);
                    break;
                case PointMagnetType.Intersection:
                    drawIntersectPoint(device, x, y, color);
                    break;
                case PointMagnetType.MidPoint:
                    drawMidPoint(device, x, y, color);
                    break;
                case PointMagnetType.Perpendicular:
                    drawPerpPoint(device, x, y, color);
                    break;
                case PointMagnetType.SimplePoint:
                    drawSimplePoint(device, x, y, color);
                    break;
            }

            device.RenderState.AlphaBlendEnable = alphaEnable;
            device.RenderState.CullMode = cull;
        }