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一、效果预览

二、实现代码

public partial class Form1 : Form
{private int _organCount;//组织数量private List<vtkPolyDataMapper> _multOrganMapper = new List<vtkPolyDataMapper>();//多组织映射器private List<vtkActor> _organActors = new List<vtkActor>();private vtkRenderer _organRenderer;//渲染器private vtkRenderWindow _organRenderWindow;//渲染窗口private vtkRenderWindowInteractor _renderWindowInteractor;//渲染窗口交互器private int[] _organValue;private RenderWindowControl _renderWindowControl;private double[] center;public Form1(){InitializeComponent();}private void Form1_Load(object sender, EventArgs e){_renderWindowControl = renderWindowControl1;_organRenderWindow = _renderWindowControl.RenderWindow;_organRenderer = _organRenderWindow.GetRenderers().GetFirstRenderer();_renderWindowInteractor = _organRenderWindow.GetInteractor();}private void bt1_Click(object sender, EventArgs e){CreateActors(new int[] { 1, 2, 3, 4, 5, 6, 7, 8 });ColorConverter colorConverter = new ColorConverter();List<Color> colors = new List<Color>{(Color)colorConverter.ConvertFromString("#752830"),(Color)colorConverter.ConvertFromString("#1ee4a5"),(Color)colorConverter.ConvertFromString("#125717"),(Color)colorConverter.ConvertFromString("#5854FA"),(Color)colorConverter.ConvertFromString("#bfdc35"),(Color)colorConverter.ConvertFromString("#8b5d0e"),(Color)colorConverter.ConvertFromString("#b929d3"),(Color)colorConverter.ConvertFromString("#15a2af"),};List<double> opacitys = new List<double>() { 1, 1, 1, 1, 1, 1, 1, 1  };List<int> visiInts = new List<int>() { 1, 1, 1, 1, 1, 1, 1, 1, };SetActorProperty(colors, opacitys, visiInts);string str =  "Resources\\heart.nii.gz";LoadedNiiHeartData(str);}/// <summary>/// 根据心脏组织数量创建角色/// </summary>/// <param name="organValue"></param>public void CreateActors(int[] organValue){_organValue = organValue;_organCount = organValue.Length;for (int i = 0; i < _organCount; i++){vtkPolyDataMapper mapper = new vtkPolyDataMapper();_multOrganMapper.Add(mapper);vtkActor actor = new vtkActor();_organActors.Add(actor);_organRenderer.AddActor(actor);}}/// <summary>/// 设置角色参数，并渲染角色/// </summary>/// <param name="actorColors"></param>/// <param name="opacitys"></param>/// <param name="visiInts"></param>public void SetActorProperty(List<Color> actorColors, List<double> opacitys, List<int> visiInts){for (int i = 0; i < _organCount; i++){Color c = actorColors[i];_organActors[i].GetProperty().SetColor(c.R / 255.0, c.G / 255.0, c.B / 255.0);//设置角色颜色_organActors[i].GetProperty().SetOpacity(opacitys[i]);//设置角色透明度_organActors[i].SetVisibility(visiInts[i]);//设置角色显隐}_organRenderer.Render();}vtkAppendPolyData appendFilter;public void LoadedNiiHeartData(string niiPath){vtkNIFTIImageReader reader = vtkNIFTIImageReader.New();reader.SetFileName(niiPath);reader.Update();vtkImageData imageData = reader.GetOutput();appendFilter = vtkAppendPolyData.New();for (int i = 0; i < _organCount; i++){vtkImageData tempData = new vtkImageData();tempData.DeepCopy(imageData);vtkImageData iData = SepImageData(tempData, i + 1);vtkPolyDataAlgorithm edge = CreateEdges3D(iData, i + 1);vtkPolyDataNormals smooth = CreateSmooth(edge.GetOutputPort());_multOrganMapper[i].SetInputConnection(smooth.GetOutputPort());_multOrganMapper[i].ScalarVisibilityOff();_organActors[i].SetMapper(_multOrganMapper[i]);_organActors[i].GetProperty().SetSpecular(0.3);//反射率_organActors[i].GetProperty().SetOpacity(1);//透明度_organActors[i].GetProperty().SetSpecularPower(20);//反射光强度appendFilter.AddInputData(_multOrganMapper[i].GetInput());}appendFilter.Update();center = appendFilter.GetOutput().GetCenter();//创建一个cameravtkCamera aCamera = vtkCamera.New();aCamera.SetViewUp(0, 0, 1);aCamera.SetPosition(0, 10, 0);aCamera.SetFocalPoint(0, 0, 0);_organRenderer.SetActiveCamera(aCamera);_organRenderer.UseDepthPeelingOn();_organRenderer.SetUseFXAA(true);_organRenderer.ResetCamera();//450msaCamera.SetPosition(0, 10, 0);aCamera.OrthogonalizeViewUp();_organRenderer.ResetCameraClippingRange();_renderWindowInteractor.Start();}private vtkImageData SepImageData(vtkImageData imageData, int organNum){var pointNum = imageData.GetNumberOfPoints();var type = imageData.GetScalarType();imageData.AllocateScalars(type, 1);//90msunsafe{byte* pt = (byte*)imageData.GetScalarPointer();//130ms          }return imageData;}private vtkPolyDataAlgorithm CreateEdges3D(vtkImageData imageData, int organNum){vtkFlyingEdges3D flyingEdges3D = vtkFlyingEdges3D.New();flyingEdges3D.SetInputData(imageData);flyingEdges3D.ComputeGradientsOff();flyingEdges3D.ComputeNormalsOff();flyingEdges3D.SetValue(0, organNum);flyingEdges3D.ComputeScalarsOff();flyingEdges3D.Update();//50ms return flyingEdges3D;}private vtkPolyDataNormals CreateSmooth(vtkAlgorithmOutput algorithmOutput){vtkWindowedSincPolyDataFilter smooth = vtkWindowedSincPolyDataFilter.New();smooth.SetInputConnection(algorithmOutput);smooth.SetNumberOfIterations(30);double passBand = 0.01;smooth.SetPassBand(passBand);smooth.BoundarySmoothingOff();smooth.FeatureEdgeSmoothingOff();smooth.NonManifoldSmoothingOn();smooth.NormalizeCoordinatesOn();vtkPolyDataNormals smoothnormals = vtkPolyDataNormals.New();smoothnormals.SetInputConnection(smooth.GetOutputPort());smoothnormals.SetFeatureAngle(60);return smoothnormals;}    
}

三、源码地址

踩坑创作不易，白嫖党勿扰：源码