[vtkusers] how to connect between vtkDataObject and vtkunstructuredGrid?

[LM]

I used it .. because i want to make a surfaceRendering to some medical 3D Images..
  And i have read that marchingCubes techniques do such a process via the triagls that it makes..
   
  I had no idea if vtkContourFilter do the same.. so thanks a lot for this info.
   
  Anyway I have discovered my error.. As I have to use A vtkImageThreshold instead of the vtkThreshold
   
  thanks 
  regards..
   
  
Yeraze.10672602 at bloglines.com wrote:
  Any particular reason why you're using vtkMArchingCubes? vtkContourFilter
will do the same thing (Isosurface/Contour line extraction) and it's faster
& works on more data types.

--- LM thanks
a lot for ur replys..
> When I connect them directly..by writing
> mcubes->Getinput(threshold->GetOutput)

> it gave me a runtime error..as followed 
> 
> "ERROR: In \project\VTK
v5\VTK v5\Filtering\vtkDemandDrivenPipeline.cxx, line 777
> vtkStreamingDemandDrivenPipeline
(04520DA0): Input for connection index 0 on input port index 0 for algorithm
vtkMarchingCubes(0451EEC0) is of type vtkUnstructuredGrid, but a vtkImageData
is required."
> 
> any suggestion?
> Uriah Liggett 
wrote:
> Actually, you shouldn't even need to do what I stated before.
Since 
> vtkUnstructuredGrid is a subclass of vtkDataObject, you can simply
pass 
> the grid directly to the marching cubes (which will see it as a 

> vtkDataObject) without any problems.
> 
> 
> LM wrote:
> 
> > I would
like to ask some small question..
> >
> > I have the output of the threshold
filter "unstructuredGrid"
> > and the MarchingCubes take input of type "vtkDataObject"
which is a 
> > super class of the "vtkunstructuredGrid"
> > how to connect
between them???
> > means.. that i want to get the output of the threshold
filter.. and 
> > input it into the marchingCubes..
> > 
> > thanks in
advance
> > LM
> >
> > ------------------------------------------------------------------------

> > Yahoo! Photos
> > Ring in the New Year with Photo Calendars 
> > .

> > Add photos, events, holidays, whatever.
> >
> >------------------------------------------------------------------------

> >
> >_______________________________________________
> >This is the private
VTK discussion list. 
> >Please keep messages on-topic. Check the FAQ at:
http://www.vtk.org/Wiki/VTK_FAQ
> >Follow this link to subscribe/unsubscribe:

> >http://www.vtk.org/mailman/listinfo/vtkusers
> > 
> >
> 
> _______________________________________________

> This is the private VTK discussion list. 
> Please keep messages on-topic.
Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> Follow this link to subscribe/unsubscribe:

> http://www.vtk.org/mailman/listinfo/vtkusers
> 
> 
> 
> 
> 
> ---------------------------------
> Yahoo! Photos
> Got holiday prints?
See all the ways to get quality prints in your hands ASAP.
> 
> 
> _______________________________________________

> This is the private VTK discussion list. 
> Please keep messages on-topic.
Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> Follow this link to subscribe/unsubscribe:

> http://www.vtk.org/mailman/listinfo/vtkusers
> 
> 
> 
  


		
---------------------------------
 Yahoo! Autos. Looking for a sweet ride? Get pricing, reviews, & more on new and used cars.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20060121/84bd869b/attachment.htm>