<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:"times new roman", "new york", "times", serif;font-size:12pt"><DIV>Hello all,<BR></DIV><DIV><BR></DIV><DIV>How can I save an image 3D as vtkData (.vtk), that I did with Volume Rendering (vtkFixedPointVolumeRayCastMapper)? With vtkDataSetWriter it does not work. My code is shown below:</DIV><DIV><BR></DIV><DIV>Thank you.</DIV><DIV><BR></DIV><DIV><BR> levelForVolumeRendering = (int)this->sliderRangeMin->value()-(int)this->sliderRangeMax->value()/2;<BR> widhtForVolumeRendering = (int)this->sliderRangeMin->value()+(int)this->sliderRangeMax->value()/2;<BR><BR> mode3D = vtkInteractorStyleTrackballCamera::New();<BR></DIV><DIV><BR></DIV><DIV>renderer3D = vtkRenderer::New();<BR> renderWindow3D = vtkRenderWindow::New();<BR> renderWindow3D->AddRenderer(renderer3D);<BR><BR> displayImage3D->SetRenderWindow(renderWindow3D);<BR>
displayImage3D->SetInteractorStyle(mode3D);<BR> displayImage3D->Initialize();<BR><BR> piecewiseVolumeRendering = vtkPiecewiseFunction::New();<BR> piecewiseVolumeRendering->AddPoint((double)levelForVolumeRendering, 0);<BR> piecewiseVolumeRendering->AddPoint((double)widhtForVolumeRendering, 1.0);<BR><BR>colorVolumeRendering = vtkColorTransferFunction::New();<BR>colorVolumeRendering->AddRGBPoint((double)levelForVolumeRendering, .62, .36, .18 );<BR> colorVolumeRendering->AddRGBPoint((double)widhtForVolumeRendering, .83, .66, 1);<BR> <BR> propertyVolumeRendering = vtkVolumeProperty::New();<BR> propertyVolumeRendering->SetShade(0);<BR> propertyVolumeRendering->SetAmbient(0.3);<BR> propertyVolumeRendering->SetDiffuse(1.0);<BR> propertyVolumeRendering->SetSpecular(0.2);<BR> propertyVolumeRendering->SetSpecularPower(50.0);<BR> propertyVolumeRendering->SetColor(colorVolumeRendering);<BR>
propertyVolumeRendering->SetScalarOpacity(piecewiseVolumeRendering);<BR> propertyVolumeRendering->ShadeOn();<BR> propertyVolumeRendering->SetInterpolationTypeToLinear();<BR><BR> volumeRayCastMapper = vtkFixedPointVolumeRayCastMapper::New();<BR> volumeRayCastMapper->SetInputConnection(reader2D->GetOutputPort());<BR><BR> volumeVolumeRendering = vtkVolume::New();<BR> volumeVolumeRendering->SetProperty(propertyVolumeRendering);<BR> volumeVolumeRendering->SetMapper(volumeRayCastMapper);<BR><BR> camera3D = vtkCamera::New();<BR> camera3D->SetViewUp(0, 0, -1);<BR> camera3D->SetPosition(0, 1, 0);<BR> camera3D->SetFocalPoint(0, 0, 0);<BR> camera3D->ComputeViewPlaneNormal();<BR> camera3D->Azimuth(20);<BR><BR> renderer3D->AddViewProp(volumeVolumeRendering);<BR>renderer3D->SetActiveCamera(camera3D);<BR> renderer3D->ResetCamera();<BR> camera3D->Dolly(1.3);<BR>
renderer3D->ResetCameraClippingRange();<BR> <BR><BR></DIV>
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