コード例 #1
0
        //镂空模式_初始化颜色
        private void InitializeColor_HollowOut(ExGrid Grid)
        {
            m_LookupTable = vtkLookupTable.New();
            m_LookupTable.SetTableRange(Grid.Min, Grid.Max);
            //蓝色->红色
            m_LookupTable.SetHueRange(0.666667, 0);
            m_LookupTable.SetNumberOfColors(100);
            m_LookupTable.Build();

            //设定标量值的颜色
            m_ColorTransferFunction = vtkColorTransferFunction.New();
            for (int i = 0; i < 100; i += 10)
            {
                var    color = m_LookupTable.GetTableValue(i);
                double Range = Grid.Max - Grid.Min;
                m_ColorTransferFunction.AddRGBPoint(Grid.Min + i * Range / 100.0, color[0], color[1], color[2]);
            }
            m_ColorTransferFunction.Build();

            //线性插值透明度
            m_PiecewiseFunction = vtkPiecewiseFunction.New();
            // [,)
            InitRanges();

            foreach (var range in m_IntersectRanges)
            {
                double Min = range.Min;
                double Max = range.Max;
                ////由于VTK的特性,对Max进行修正
                //如果透明
                if (range.Transparent)
                {
                    m_PiecewiseFunction.AddSegment(Min, Transparency_Yes, Max, Transparency_Yes);
                }
                //不透明
                else
                {
                    Min = Min + EPSILON;
                    Max = Max - EPSILON;
                    m_PiecewiseFunction.AddSegment(Min, Transparency_Not, Max, Transparency_Not);
                }
            }
        }
コード例 #2
0
        //普通模式_初始化颜色
        private void InitializeColor_Normal(ExGrid Grid)
        {
            m_LookupTable = vtkLookupTable.New();
            m_LookupTable.SetTableRange(Grid.Min, Grid.Max);
            //蓝色->红色
            m_LookupTable.SetHueRange(0.667, 0);
            m_LookupTable.SetNumberOfColors(100);
            m_LookupTable.Build();

            //设定标量值的颜色
            m_ColorTransferFunction = vtkColorTransferFunction.New();
            for (int i = 0; i < 100; i += 10)
            {
                var    color = m_LookupTable.GetTableValue(i);
                double Range = Grid.Max - Grid.Min;
                m_ColorTransferFunction.AddRGBPoint(Grid.Min + i * Range / 100.0, color[0], color[1], color[2]);
            }
            m_ColorTransferFunction.Build();

            //线性插值透明度
            m_PiecewiseFunction = vtkPiecewiseFunction.New();
            m_PiecewiseFunction.AddPoint(Grid.Min, 1);
            m_PiecewiseFunction.AddPoint(Grid.Max, 1);
        }