<div dir="ltr">Hi all , <div><br></div><div>for small DICOM dataset , the pipleline work well , but for large dataset it crashes at placewidget() method call </div><div><div> /* vtk.vtkSphereSource cone = new vtk.vtkSphereSource();</div>
<div> cone.SetRadius(1.0f);*/</div><div><br></div><div> vtk.vtkDICOMImageReader VDR = new vtk.vtkDICOMImageReader();</div><div> VDR.SetDirectoryName(@"G:\Master Degree\test DataSet\My Disc\07291640");</div>
<div> VDR.SetDataOrigin(0, 0, 0);</div><div> VDR.Modified();</div><div><br></div><div> // decrease the dataset data for large data preprocessing </div><div><br></div><div> vtkImageShrink3D VIS = new vtkImageShrink3D();</div>
<div> VIS.SetShrinkFactors(2, 2, 2);</div><div> VIS.SetInputConnection(VDR.GetOutputPort());</div><div> VIS.Modified();</div><div><br></div><div> vtkImageThreshold VIT = new vtkImageThreshold();</div>
<div> VIT.ThresholdBetween(200, 2000);</div><div> VIT.SetInputConnection(VIS.GetOutputPort());</div><div> VIT.Modified(); </div><div><br></div><div> ///// Start the creation of volume rendering </div>
<div><br></div><div> //1. Gget the range of data </div><div> vtk.vtkImageChangeInformation VIC = new vtk.vtkImageChangeInformation();</div><div> VIC.SetInput(VIT.GetOutput());</div>
<div> VIC.CenterImageOn();</div><div> VIC.Modified();</div><div><br></div><div> vtk.vtkImageData VoxelData = new vtk.vtkImageData();</div><div> VoxelData = VIC.GetOutput();</div>
<div><br></div><div> double[] metaScalarRange = VoxelData.GetScalarRange();</div><div><br></div><div><br></div><div> // Render the skin - Soft tissue </div><div> double isovalue = 0.8 * (metaScalarRange[1] + metaScalarRange[0]);</div>
<div><br></div><div><br></div><div> vtkContourFilter skinExtractor = new vtkContourFilter();</div><div> skinExtractor.SetInputConnection(VIT.GetOutputPort());</div><div> skinExtractor.SetValue(0, isovalue);</div>
<div> skinExtractor.ComputeGradientsOn();</div><div> skinExtractor.Modified();</div><div><br></div><div><br></div><div> gpd = skinExtractor.GetOutput();</div><div><br></div><div>
vtk.vtkPolyDataMapper coneMapper = new vtk.vtkPolyDataMapper();</div><div> coneMapper.SetInput(gpd);</div><div> coneMapper.ScalarVisibilityOff();</div><div><br></div><div> maceActor = new vtkLODActor();</div>
<div> maceActor.SetMapper(coneMapper);</div><div> maceActor.GetProperty().SetColor(1, 0, 0);</div><div> //////////////////////// Selection Part /////////////////////////</div><div>
planes = new vtkPlanes();</div><div><br></div><div> clipper = new vtkClipPolyData();</div><div> clipper.SetInput(gpd);</div><div> clipper.SetClipFunction(planes);</div>
<div> clipper.InsideOutOn();</div><div> clipper.Modified();</div><div> vtkPolyDataMapper selectMapper = new vtkPolyDataMapper();</div><div> selectMapper.SetInput(clipper.GetOutput());</div>
<div> selectMapper.ScalarVisibilityOff();</div><div> selectMapper.Modified();</div><div> selectActor = new vtkLODActor();</div><div> selectActor.SetMapper(selectMapper);</div>
<div> selectActor.GetProperty().SetColor(0, 1, 0);</div><div> selectActor.VisibilityOff();</div><div> selectActor.SetScale(1.01, 1.01, 1.01);</div><div> selectActor.Modified();</div>
<div> /////////////////////// End of selection part////////////////////</div><div><br></div><div> //////////////////////////// Cutting part /////////////////////////////////</div><div><br></div>
<div><br></div><div> clipper_cutting = new vtkClipPolyData();</div><div> clipper_cutting.SetInput(gpd);</div><div> clipper_cutting.SetClipFunction(planes);</div><div> clipper_cutting.InsideOutOff();</div>
<div> clipper_cutting.GenerateClippedOutputOff();</div><div> clipper_cutting.Modified();</div><div> vtkPolyDataMapper selectMapper_cutting = new vtkPolyDataMapper();</div><div>
selectMapper_cutting.SetInput(clipper_cutting.GetOutput());</div><div> selectMapper_cutting.ScalarVisibilityOff();</div><div> selectMapper_cutting.Modified();</div><div> selectActor_cutting = new vtkLODActor();</div>
<div> selectActor_cutting.SetMapper(selectMapper_cutting);</div><div> selectActor_cutting.GetProperty().SetColor(1, 0, 0);</div><div> selectActor_cutting.VisibilityOff();</div>
<div> selectActor_cutting.SetScale(1.01, 1.01, 1.01); </div><div> selectActor_cutting.Modified();</div><div><br></div><div> //////////////////////////// End Cutting part //////////////////////////////////////</div>
<div> vtk.vtkRenderer ren1 = new vtk.vtkRenderer();</div><div> ren1.Modified();</div><div> renWin.AddRenderer(ren1);</div><div> //ren1.SetBackground(0.0f, 0.0f, 0.0f);</div>
<div><br></div><div> vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();</div><div> iren.SetRenderWindow(renWin);</div><div><br></div><div><br></div><div><br></div><div> //The SetInteractor method is how 3D widgets are associated with the</div>
<div> //render window interactor. Internally, SetInteractor sets up a bunch</div><div> //of callbacks using the Command/Observer mechanism (AddObserver()).</div><div> vtkBoxWidget boxWidget = new vtkBoxWidget();</div>
<div> boxWidget.SetInteractor(iren);</div><div> boxWidget.SetPlaceFactor(1.25);</div><div> boxWidget.TranslationEnabledOn();</div><div><br></div><div><br></div><div><br></div><div>
ren1.AddActor(maceActor);</div><div> ren1.AddActor(selectActor);</div><div> ren1.AddActor(selectActor_cutting);</div><div><br></div><div> boxWidget.SetInput(gpd); </div>
<div> <span class="Apple-style-span" style="background-color: rgb(255, 255, 0);"> boxWidget.Modified(); // crash here</span></div><div> boxWidget.PlaceWidget();</div><div><br></div><div> boxWidget.AddObserver((uint)vtk.EventIds.StartInteractionEvent, new vtk.vtkDotNetCallback(StartInteractionEvent));</div>
<div> boxWidget.AddObserver((uint)vtk.EventIds.InteractionEvent, new vtk.vtkDotNetCallback(InteractionEvent));</div><div> boxWidget.AddObserver((uint)vtk.EventIds.EndInteractionEvent, new vtk.vtkDotNetCallback(EndInteractionEvent));</div>
<div><br></div><div><br></div><div> boxWidget.On();</div><div><br></div><div><br></div><div> renWin.AddRenderer(ren1); renWin.Modified();</div></div><div><br></div><div>Any suggestion please </div>
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