[vtkusers] Problem with vtkDelaunay3D

[John Ownsoul]

sorry, but i couldn't understand what i must to do, could you explain how i
can do this with vtk in detail?



santana wrote:
> 
> You are seeing the surface of your object, I think what you are after is 
> either some sort of volume rendering, or to simply slice or sample the 
> data on the interior of your dataset. You can for instance slice the 
> data with a plane, or a spherical shell and visualize the resulting 
> surfaces. You might take a look at using paraview to try various 
> techniques before you bother coding anything up yourself.
> 
> 
> John Ownsoul wrote:
>> Dear Fellows,
>>
>> I want to visualize 3D geographical data with VTK. I use x,y,z
>> resistivity
>> values. I use vtkDelaunay3D and visualize it, but when zooming into the
>> object i saw that it is not a solid object. The object is hollow. How can
>> i
>> visualize a solid object, could you help me. Thanks for everything...
>>
>>
>> http://www.nabble.com/file/p14336625/1.jpg 
>> http://www.nabble.com/file/p14336625/2.jpg 
>>
>>
>>
>> Here is my code:
>>
>> while (dis.available() != 0)
>> 	    {
>> 	    	qwe++;
>> 	    	temp=dis.readLine();
>> 	    	
>> 	    	processLine(temp);
>> 	    	System.out.println("x : " + x + ", y : " + y + ", z : " + z + ",
>> resist. : " + r );
>> 	    	id1=points.InsertNextPoint(x,y,z);
>> 	    	//if(r>20 && r<80) r=100;
>> 	    	
>> 	    	if (r>max) max=r;
>> 	    	if (r<min) min=r;
>> 	    	
>> 	    	r=1-r/500;
>> 	    	
>> 	    	values.InsertValue(qwe,r);
>> 	    	ids.InsertNextId(qwe);
>> 	    	cell.InsertNextCell(id1);
>> 	    }
>> 	    fis.close();
>> 	    bis.close();
>> 	    dis.close();
>> 	    System.out.println(qwe);
>> 	    System.out.println("min " + min);
>> 	    System.out.println("max " + max);
>> 	    
>> 	    vtkPolyData polyData = new vtkPolyData();
>> 	    polyData.SetPoints(points);
>> 	    polyData.SetVerts(cell);
>> 	    polyData.GetPointData().SetScalars(values);
>>         
>> 	    
>> //==============================================================	    
>>         vtkDelaunay3D del3D = new vtkDelaunay3D();
>>         del3D.SetInput(polyData);
>>         del3D.SetTolerance(0.001);
>>         del3D.BoundingTriangulationOff();
>>         
>>         vtkDataSetMapper dataSetMapper=new vtkDataSetMapper();
>>         dataSetMapper.SetInput(del3D.GetOutput());
>> //==============================================================	    
>>         
>>         vtkActor actor = new vtkActor();
>>         actor.SetMapper(dataSetMapper);
>>         actor.GetProperty().SetColor(1,0,0);
>>         
>>         
>>         
>>         
>>         vtkRenderer renderer = new vtkRenderer();
>>         vtkRenderWindow renderWindow = new vtkRenderWindow();
>>         renderWindow.AddRenderer(renderer);
>>
>>         vtkRenderWindowInteractor iren = new
>>         vtkRenderWindowInteractor();
>>         iren.SetRenderWindow(renderWindow);
>>         
>>         renderer.AddActor(actor);
>>         renderer.SetBackground(0,0,0);
>>         
>>         renderWindow.SetSize(600, 600); 
>>         renderWindow.Render();
>>         iren.Initialize();
>>         renderWindow.Render();
>>         iren.Start();
>>
>>
>> ====================================================================
>> Here is my data set:
>>
>> x            y             z         resistivity value
>> ====    ====      =====    ============
>> .....
>> 2	1	-0.25	118.741
>> 3	1	-0.25	128.561
>> 4	1	-0.25	99.534
>> 5	1	-0.25	179.084
>> 6	1	-0.25	100.552
>> 7	1	-0.25	60.644
>> 8	1	-0.25	128.533
>> 9	1	-0.25	78.901
>> .......
>>
>> ====================================================================
>>   
> 
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> -----
> http://quaoar.sr.unh.edu 
> 

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