[vtkusers] convert vtkimagetype to vtkpolydata or vtkunstructured

[InfoSeekerr]

I tried this code with vtkclipvolume

My code:

vtk::vtkDICOMImageReader ^VDR = gcnew vtk::vtkDICOMImageReader();
			VDR->SetDirectoryName("H:\\work\\Master
Degree\\DataSet\\case2\\DICOM\\PA1\\ST1\\SE2");
			VDR->SetDataOrigin(0, 0, 0);

			vtk::vtkImageChangeInformation ^VIC = gcnew
vtk::vtkImageChangeInformation();
			VIC->SetInput(VDR->GetOutput());

			vtkClipVolume ^v = gcnew vtkClipVolume();
			v->SetInputConnection(VDR->GetOutputPort());
			v->SetValue(2.0);
			v->GenerateClippedOutputOff();

			vtkDataSetMapper ^mapper = gcnew vtkDataSetMapper();
			mapper->SetInputConnection(v->GetOutputPort());

			// actor coordinates geometry, properties, transformation 
			vtkActor ^aSphere = gcnew vtkActor();
			aSphere->SetMapper(mapper);
			// aSphere.GetProperty().SetRepresentationToWireframe();
			//aSphere.GetProperty().SetColor(0,0,1); // sphere color blue

			// a renderer and render window 
			vtkRenderer ^ren1 = gcnew vtkRenderer();
			vtkRenderWindow ^renWin = gcnew vtkRenderWindow();
			renWin->AddRenderer(ren1);

			// an interactor 
			vtkRenderWindowInteractor ^iren = gcnew vtkRenderWindowInteractor();
			iren->SetRenderWindow(renWin);

			// add the actor to the scene 
			ren1->AddActor(aSphere);
			//ren1.SetBackground(1,1,1); // Background color white

			// render an image (lights and cameras are created automatically) 
			renWin->Render();

			// begin mouse interaction 
			iren->Start();

InfoSeekerr wrote:
> 
> I don't want to clip the volume , I read a dicome series using
> vtkdicomreader, then the output of the reader is vtkimage , so I put in
> volume to show it , I want to create amesh on this volume (all of it) , 
> 
> example: creating 3D of skull, then apply tetrahedral mesh on it . is
> there away instead of clipping
> 
> 
> best regards
> 
> 
> 
> Bryn Lloyd-2 wrote:
>> 
>> 0)
>> Please read this email carefully.
>> 
>> 1)
>> You were told NOT to write to the developers list. Don't do it!
>> 
>> 2)
>> STOP writing to people's private email addresses! Especially, when they 
>> have asked you.
>> 
>> 3)
>> You did NOT pay anybody to answer your questions. Don't expect to always 
>> get one.
>> 
>> 4)
>> Your questions are often impossible to understand. Spend more time on 
>> writing a question, so that it is easy to understand. You will get 
>> better answers in return!
>> 
>> 5)
>> Nearly all VTK filter have either tests or examples (or both), which 
>> explain how the filter/class can be used. This is visible on the doxygen 
>> documentation. For instance vtkClipDataSet has tests:
>> http://www.vtk.org/doc/nightly/html/classvtkClipDataSet.html
>> 
>> 
>> 
>> About you question:
>> 
>> you could try following pipeline:
>> 
>> reader
>> -> marching cubes (e.g. vtkContourFilter) at a given iso-contour
>> -> delaunay
>> -> writer or do something
>> 
>> 
>> alternatively, skipping the delaunay part:
>> 
>> reader
>> -> clip volume (vtkClipDataSet) at a given iso-contour
>> -> optional: clipping can produce prisms and other 3D cells. Convert 
>> these to tetrahedra (vtkDataSetTriangleFilter).
>> -> writer or do something
>> 
>> 
>> 
>> 
>> 
>> 
>> Ali Habib wrote:
>>> Dear all,
>>> 
>>> I want to convert the output of vtkDICOMImageReader to vtkpolydata or 
>>> vtkunstructured grid , to be used with vtkdealunary3D
>>> 
>>> using vtkthreshold give an exption wish can''t load 33..element 
>>> 
>>> 
>>> any suggestion
>>> 
>>> best regards 
>>> 
>>> 
>>> ------------------------------------------------------------------------
>>> 
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>> 
>> 
>> -- 
>> -------------------------------------------------
>> Bryn Lloyd
>> Computer Vision Laboratory
>> ETH Zürich, Sternwartstrasse 7, ETF C110
>> CH - 8092 Zürich, Switzerland
>> Tel: +41 44 63 26668
>> Fax: +41 44 63 21199
>> -------------------------------------------------
>> _______________________________________________
>> Powered by www.kitware.com
>> 
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>> 
>> Please keep messages on-topic and check the VTK FAQ at:
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> 
> 

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