//普通模式_绘制
private void DrawMode_Normal()
{
#region 体属性 vtkVolumeProperty
//设定体数据的属性:不透明性和颜色值映射标量值
vtkVolumeProperty volumeProperty = vtkVolumeProperty.New();
volumeProperty.SetColor(m_ColorTransferFunction);
volumeProperty.SetScalarOpacity(m_PiecewiseFunction);
//设置插值类型
volumeProperty.SetInterpolationTypeToNearest();
volumeProperty.SetDiffuse(0.7);
volumeProperty.SetAmbient(0.01);
volumeProperty.SetSpecular(0.5);
volumeProperty.SetSpecularPower(100);
#endregion
//绘制方法:体射线投射
vtkVolumeRayCastCompositeFunction compositeFunction = vtkVolumeRayCastCompositeFunction.New();
#region 体数据映射器 vtkVolumeRayCastMapper
//体数据映射器
vtkVolumeRayCastMapper volumeMapper = vtkVolumeRayCastMapper.New();
volumeMapper.SetInput(m_ImageData);
volumeMapper.SetVolumeRayCastFunction(compositeFunction);
#endregion
#region 体 vtkVolume
//体
vtkVolume volume = vtkVolume.New();
volume.SetMapper(volumeMapper);
volume.SetProperty(volumeProperty);
#endregion
//模型体放入Renerer
m_Renderer.AddVolume(volume);
}
/// <summary>
/// 进行可视化
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void VisiualizeSlicesWnd_Load(object sender, EventArgs e)
{
vtkRenderer renderer = rwcShowSlices.RenderWindow.GetRenderers().GetFirstRenderer();
renderer.SetBackground(1, 1, 1);
//CuteTools.ShowImageSeries(fnFormat, height, width, startIndex, endIndex, renderer);
//return;
vtkBMPReader reader = vtkBMPReader.New();
reader.SetFilePattern(fnFormat);
reader.SetDataExtent(0, height - 1, 0, width - 1, startIndex, endIndex);
reader.SetDataScalarTypeToUnsignedChar();
reader.Update();
vol = vtkVolume.New();
vtkFixedPointVolumeRayCastMapper texMapper = vtkFixedPointVolumeRayCastMapper.New();
texMapper.SetInput(reader.GetOutput());
vol.SetMapper(texMapper);
colorTransferFunction = vtkColorTransferFunction.New();
colorTransferFunction.AddRGBPoint(0, tbR1.Value * 1.0 / 255, tbG1.Value * 1.0 / 255, tbB1.Value * 1.0 / 255);
colorTransferFunction.AddRGBPoint(1, tbR2.Value * 1.0 / 255, tbG2.Value * 1.0 / 255, tbB2.Value * 1.0 / 255);
colorTransferFunction.ClampingOn();
vpro = vtkVolumeProperty.New();
vtkPiecewiseFunction compositeOpacity = vtkPiecewiseFunction.New();
compositeOpacity.AddPoint(0, 0);
//compositeOpacity.AddPoint(120.0, 0.5);
compositeOpacity.AddPoint(255.0, 1);
compositeOpacity.ClampingOn();
vpro.SetScalarOpacity(compositeOpacity);
vpro.SetColor(colorTransferFunction);
//vpro.SetInterpolationTypeToLinear();
vpro.SetInterpolationTypeToNearest();
//vpro.ShadeOn();
vol.SetProperty(vpro);
//画轴距图
vol.SetOrientation(45, 45, 0);
//rwcShowSlices.RenderWindow.GetRenderers().GetFirstRenderer().AddVolume( vol );
rwcShowSlices.Refresh();
}
public cVolumeRendering3D(cSingleChannelImage SingleChannelImage, cPoint3D Pos, byte[][] NewLUT, c3DNewWorld AssociatedWorld)
{
if (SingleChannelImage.Data == null) return;
baseInit(AssociatedWorld);
this.SetName("Volume 3D [" + SingleChannelImage.Name + "]");
this.LUT = NewLUT;
vtk_volume = vtkVolume.New();
vtkImageData imageData = vtkImageData.New();
vtkUnsignedShortArray UshortArray = vtkUnsignedShortArray.New();
voi = vtkExtractVOI.New();
ColorTransferFunction = vtkColorTransferFunction.New();
for (int i = 0; i < SingleChannelImage.Width * SingleChannelImage.Height * SingleChannelImage.Depth; i++)
{
UshortArray.InsertTuple1(i, (ushort)SingleChannelImage.Data[i]); // data are converted to UShort
}
imageData = vtkImageData.New();
imageData.SetDimensions(SingleChannelImage.Width, SingleChannelImage.Height, SingleChannelImage.Depth);
imageData.SetOrigin(0, 0, 0);
if ((SingleChannelImage.Resolution.X == 0) || (SingleChannelImage.Resolution.Y == 0) || (SingleChannelImage.Resolution.Z == 0))
imageData.SetSpacing(1.0, 1.0, 1.0);
else
imageData.SetSpacing(SingleChannelImage.Resolution.X, SingleChannelImage.Resolution.Y, SingleChannelImage.Resolution.Z);
imageData.GetPointData().SetScalars(UshortArray);
voi = vtkExtractVOI.New();
voi.SetInput(imageData);
voi.SetVOI(0, SingleChannelImage.Width - 1, 0, SingleChannelImage.Height - 1, 0, SingleChannelImage.Depth - 1);
voi.SetSampleRate(1, 1, 1);
opacityTransferFunction = vtkPiecewiseFunction.New();
range = imageData.GetScalarRange();
opacityTransferFunction.AddPoint(range[0], 0.0);
opacityTransferFunction.AddPoint(range[1], 0.3);
//opacityTransferFunction.AddPoint(2000, 0.1);
//opacityTransferFunction.AddPoint(range[0] + (range[1]-range[0])/2.0, 0.0);
//opacityTransferFunction.AddPoint(range[1], 0.7);
if (LUT == null)
{
//cLUT MyLut = new cLUT();
//LUT = MyLut.LUT_JET;
ColorTransferFunction.AddRGBPoint(0, 0 , 0, 0);
ColorTransferFunction.AddRGBPoint(1, 1, 1, 1);
}
//double LUTSize = LUT[0].Length;
//for (int i = 0; i < (int)LUTSize; i++)
//{
// colorTransferFunction.AddRGBPoint(i, LUT[0][i] / LUTSize, LUT[1][i] / LUTSize, LUT[2][i] / LUTSize);
//}
ColorTransferFunction.Build();
volumeProperty = vtkVolumeProperty.New();
volumeProperty.SetColor(ColorTransferFunction);
volumeProperty.SetScalarOpacity(opacityTransferFunction);
volumeProperty.SetInterpolationTypeToNearest();
volumeProperty.ShadeOff();
vtkVolumeTextureMapper3D volumeTextureMapper = vtkVolumeTextureMapper3D.New();
volumeTextureMapper.SetInputConnection(voi.GetOutputPort());
//vtkVolumeRayCastCompositeFunction compositeFunction = vtkVolumeRayCastCompositeFunction.New();
//vtkVolumeRayCastMapper volumeMapper = vtkVolumeRayCastMapper.New();
//volumeMapper.SetVolumeRayCastFunction(compositeFunction);
//volumeMapper.SetInputConnection(voi.GetOutputPort());
vtk_volume = vtkVolume.New();
vtk_volume.SetMapper(volumeTextureMapper);
vtk_volume.SetProperty(volumeProperty);
vtk_volume.PickableOn();
vtk_volume.SetPosition(Pos.X, Pos.Y, Pos.Z);
}