public void readVTKDicom(string dirname) { vtk.vtkDICOMImageReader DICOMreader = new vtk.vtkDICOMImageReader(); DICOMreader.SetDirectoryName(dirname); DICOMreader.SetDataOrigin(0, 0, 0); DICOMreader.Update(); vtk.vtkImageChangeInformation imageChangeInformation = new vtk.vtkImageChangeInformation(); imageChangeInformation.SetInput(DICOMreader.GetOutput()); imageChangeInformation.CenterImageOn(); // Centered the image here.... imageChangeInformation.Update(); VoxelData = imageChangeInformation.GetOutput(); spacing = VoxelData.GetSpacing(); int numberofpixels = VoxelData.GetNumberOfPoints(); dimensions = VoxelData.GetDimensions(); metaScalarRange = VoxelData.GetScalarRange(); double[] origin = VoxelData.GetOrigin(); info = "\r\n VTK Dicom dir read, parameters: \r\n"; info += "Volume dimensions : " + dimensions[0] + " " + dimensions[1] + " " + dimensions[2] + "\r\n"; info += "Volume scales : " + spacing[0] + " " + spacing[1] + " " + spacing[2] + "\r\n"; info += "Scalar range : " + metaScalarRange[0] + " " + metaScalarRange[1] + "\r\n"; info += "Volume origin: " + origin[0] + " " + origin[1] + " " + origin[2] + "\r\n"; info += "Number of Pixels : " + numberofpixels + "\r\n"; GC.Collect(); }
public void VolumeRender(vtk.vtkImageData VoxelDatat) { VoxelData = VoxelDatat; renWin.AddRenderer(ren1); iren.SetRenderWindow(renWin); double[] inputRange = VoxelData.GetScalarRange(); vtk.vtkPiecewiseFunction opacityTransferFunction = new vtk.vtkPiecewiseFunction(); opacityTransferFunction.AddPoint(inputRange[0], 0); opacityTransferFunction.AddPoint(inputRange[1], 1); vtk.vtkColorTransferFunction colorTransferFunction = new vtk.vtkColorTransferFunction(); colorTransferFunction.AddRGBPoint(inputRange[0], 1.0, 1.0, 1.0); colorTransferFunction.AddRGBPoint(inputRange[1], 1.0, 1.0, 1.0); volumeProperty.SetColor(colorTransferFunction); volumeProperty.SetScalarOpacity(opacityTransferFunction); volumeProperty.ShadeOff(); volumeProperty.SetInterpolationTypeToLinear(); volume.SetProperty(volumeProperty); setRAY(); ren1.AddVolume(volume); ren1.ResetCamera(); renWin.Render(); addBusyObservers(); iren.Initialize(); iren.Enable(); }
public vtk.vtkPiecewiseFunction setIsoTF() { double[] inputRange = VoxelData.GetScalarRange(); vtk.vtkPiecewiseFunction opacityIsoTransferFunction = new vtk.vtkPiecewiseFunction(); double per = ((inputRange[1] - inputRange[0]) / 100); if (isovalue > (inputRange[0] + per)) { opacityIsoTransferFunction.AddPoint(inputRange[0], 0); opacityIsoTransferFunction.AddPoint(isovalue - (per), 0); } opacityIsoTransferFunction.AddPoint(isovalue, 1); opacityIsoTransferFunction.AddPoint(inputRange[1], 1); return(opacityIsoTransferFunction); }
public void ReadVTKV3D(string filename) { readv3dinfo V3Dfileinfo = new readv3dinfo(); V3Dfileinfo.getv3dinfo(filename); vtk.vtkImageReader V3Dreader = new vtk.vtkImageReader(); //V3Dreader.RemoveAllInputs(); // all the slices are in one file V3Dreader.SetFileDimensionality(3); // image is greyscale V3Dreader.SetNumberOfScalarComponents(1); // 2 bytes per voxel V3Dreader.SetDataScalarTypeToUnsignedShort(); // volume dimension sizes int maxx = V3Dfileinfo.v3dsizes[0] - 1; int maxy = V3Dfileinfo.v3dsizes[1] - 1; int maxz = V3Dfileinfo.v3dsizes[2] - 1; V3Dreader.SetDataExtent(0, maxx, 0, maxy, 0, maxz); //voxel spacing spacing = V3Dfileinfo.v3dscales; V3Dreader.SetDataSpacing(spacing); // set to zero unless you know double[] origing = new double[3] { 0, 0, 0 }; V3Dreader.SetDataOrigin(origing); V3Dreader.SetHeaderSize((uint)V3Dfileinfo.v3doffset); // set filename V3Dreader.SetFileName(V3Dfileinfo.v3dfilename); V3Dreader.Update(); vtk.vtkImageChangeInformation imageChangeInformation = new vtk.vtkImageChangeInformation(); imageChangeInformation.SetInput(V3Dreader.GetOutput()); imageChangeInformation.CenterImageOn(); // Centered the image here.... imageChangeInformation.Update(); VoxelData = imageChangeInformation.GetOutput(); spacing = VoxelData.GetSpacing(); int numberofpixels = VoxelData.GetNumberOfPoints(); dimensions = VoxelData.GetDimensions(); metaScalarRange = VoxelData.GetScalarRange(); double[] origin = VoxelData.GetOrigin(); info = "\r\n VTK file read, parameters: \r\n"; info += "Volume dimensions : " + dimensions[0] + " " + dimensions[1] + " " + dimensions[2] + "\r\n"; info += "Volume scales : " + spacing[0] + " " + spacing[1] + " " + spacing[2] + "\r\n"; info += "Volume origin: " + origin[0] + " " + origin[1] + " " + origin[2] + "\r\n"; info += "Scalar range : " + metaScalarRange[0] + " " + metaScalarRange[1] + "\r\n"; info += "Number of Pixels : " + numberofpixels + "\r\n"; GC.Collect(); }
public void render3Dplanes(vtk.vtkImageData VoxelData) { renWin.AddRenderer(ren2); iren.SetRenderWindow(renWin); vtk.vtkOutlineFilter outline = new vtk.vtkOutlineFilter(); outline.SetInput(VoxelData); vtk.vtkPolyDataMapper outlineMapper = new vtk.vtkPolyDataMapper(); outlineMapper.SetInputConnection(outline.GetOutputPort()); vtk.vtkActor outlineActor = new vtk.vtkActor(); outlineActor.SetMapper(outlineMapper); vtk.vtkCellPicker picker = new vtk.vtkCellPicker(); picker.SetTolerance(0.005); vtk.vtkColorTransferFunction colorTransferFunction = new vtk.vtkColorTransferFunction(); double[] inputRange = VoxelData.GetScalarRange(); colorTransferFunction.AddRGBPoint(inputRange[0], 0.0, 0.0, 0.0); colorTransferFunction.AddRGBPoint(inputRange[1], 1.0, 1.0, 1.0); sColorsX.SetLookupTable(colorTransferFunction); sColorsY.SetLookupTable(colorTransferFunction); sColorsZ.SetLookupTable(colorTransferFunction); planeWidgetX.SetColorMap(sColorsX); planeWidgetX.SetInteractor(iren); planeWidgetX.DisplayTextOff(); planeWidgetX.SetInput(VoxelData); planeWidgetX.SetPlaneOrientationToXAxes(); planeWidgetX.SetSliceIndex(slizex); planeWidgetX.SetPicker(picker); planeWidgetX.On(); planeWidgetX.InteractionOff(); planeWidgetY.SetColorMap(sColorsY); planeWidgetY.SetInteractor(iren); planeWidgetY.DisplayTextOff(); planeWidgetY.SetInput(VoxelData); planeWidgetY.SetPlaneOrientationToYAxes(); planeWidgetY.SetSliceIndex(slizey); planeWidgetY.SetPicker(picker); planeWidgetY.On(); planeWidgetY.InteractionOff(); planeWidgetZ.SetColorMap(sColorsZ); planeWidgetZ.SetInteractor(iren); planeWidgetZ.DisplayTextOff(); planeWidgetZ.SetInput(VoxelData); planeWidgetZ.SetPlaneOrientationToZAxes(); planeWidgetZ.SetSliceIndex(slizez); planeWidgetZ.SetPicker(picker); planeWidgetZ.On(); planeWidgetZ.InteractionOff(); ren2.ResetCamera(); renWin.Render(); iren.Initialize(); iren.Enable(); }
// Function: Calculate en render Histogram in window public void renderHistogram(vtk.vtkImageData VoxelData) { // Get size of histogram window int[] size = renHist.GetSize(); width = size[0]; height = size[1]; //Setup parameters histogram Accumulate Filter numBins = width / 2; inputRange = VoxelData.GetScalarRange(); double origin = inputRange[0]; double spacing = 1.0 * (inputRange[1] - origin) / numBins; // Setup Accumulate filter vtk.vtkImageAccumulate accumulate = new vtk.vtkImageAccumulate(); accumulate.SetInput(VoxelData); //Get input voxeldata accumulate.SetComponentExtent(0, numBins - 1, 0, 0, 0, 0); accumulate.SetComponentOrigin(origin, 0.0, 0.0); accumulate.SetComponentSpacing(spacing, 1.0, 1.0); // Make Data object from Accumulated object data = accumulate.GetOutput(); data.Update(); // Initialize first and last point of the transferfunction. npoints = 2; pointsx[0] = 0; pointsy[0] = 0; pointsx[1] = width - 1; pointsy[1] = height - 1; pointsc[0] = 1; pointsc[1] = 1; // Draw the histogram in a canvas and add the transferfunction to it drawhisto(); drawcurve(); // Create a color table vtk.vtkColorTransferFunction colorTransferFunction = new vtk.vtkColorTransferFunction(); for (int i = 0; i < 14; i++) { colorTransferFunction.AddRGBPoint(i, colortable[i, 0], colortable[i, 1], colortable[i, 2]); } // Use the color table to color the histogram window objects vtk.vtkImageMapToColors sColors = new vtk.vtkImageMapToColors(); sColors.SetInputConnection(canvas.GetOutputPort()); sColors.SetLookupTable(colorTransferFunction); // Convert the histogram image to a histogram imagemap vtk.vtkImageMapper histmap = new vtk.vtkImageMapper(); histmap.SetInputConnection(sColors.GetOutputPort()); histmap.RenderToRectangleOn(); histmap.SetColorWindow(256); histmap.SetColorLevel(127); // Create the actor needed to draw the histogram image vtk.vtkActor2D imageactor = new vtk.vtkActor2D(); imageactor.SetMapper(histmap); imageactor.SetPosition(0, 0); // Fit the histogram to the window imageactor.SetPosition2(1, 1); // Add the Histogram Image Render to the window object ren1.AddActor(imageactor); ren1.SetViewport(0, 0, 1, 1); // Fit the histogram to the window renHist.AddRenderer(ren1); // Add a Window (mouse) interactor to the window iren.SetRenderWindow(renHist); // Add mouse events to the window iren.RemoveObserver((uint)vtk.EventIds.LeftButtonPressEvent); iren.AddObserver((uint)vtk.EventIds.LeftButtonPressEvent, new vtk.vtkDotNetCallback(LeftButtonPress)); iren.RemoveObserver((uint)vtk.EventIds.LeftButtonReleaseEvent); iren.AddObserver((uint)vtk.EventIds.LeftButtonReleaseEvent, new vtk.vtkDotNetCallback(LeftButtonRelease)); iren.RemoveObserver((uint)vtk.EventIds.MouseMoveEvent); iren.AddObserver((uint)vtk.EventIds.MouseMoveEvent, new vtk.vtkDotNetCallback(MouseMove)); iren.RemoveObserver((uint)vtk.EventIds.RightButtonPressEvent); iren.AddObserver((uint)vtk.EventIds.RightButtonPressEvent, new vtk.vtkDotNetCallback(RightButtonPress)); iren.RemoveObserver((uint)vtk.EventIds.MiddleButtonPressEvent); iren.AddObserver((uint)vtk.EventIds.MiddleButtonPressEvent, new vtk.vtkDotNetCallback(MiddleButtonPress)); // Set the (display) update rate of the histogram iren.SetStillUpdateRate(5); iren.SetDesiredUpdateRate(5); // Initialize interactor and render histogram iren.Initialize(); renHist.Render(); // Debug output info = "Histogram is created \r\n"; }