Hi,
Editing lookup tables in the application is only possible for
vtkUnstrucutredGrid objects right now. I added bug
http://bugs.mitk.org/show_bug.cgi?id=12874 which is about creating a
generic way to do that.
Look-up tables embedded in the VTK file are completely ignored by MITK
(for example if you edited the default look-up table in paraview and
saved the data again). And unfortunately a default look-up table is only
created by the 2D mapper. The 3D mapper will not display the scalars
unless you create a vtkLookupTable instance via code yourself and set it
as the "LookupTable" property to the data node.
I summarized these issues in bug http://bugs.mitk.org/show_bug.cgi?id=12873
So if you code in MITK you essentially have to create the vtkLookupTable
yourself and set it as property. You can save the loaded data nodes with
their properties by saving them in a MITK Scene file. However, that
cannot be read by ParaView. To be able to read your custom look-up table
in ParaView, you either have to use a vtkDataWriter sub-class directly
yourself (and set the look-up table information) or write a "ParaView
Color Map" XML file containing your look-up table definition.
Best,
Sascha
On 07/23/2012 09:15 PM, Hila Hiler wrote:
But you can't manualy edit the color map (exaggerate with specific
colors) like Paraview let you in RT (it enables you editing the colors
and observing the outcome by the preview)
So actually the question is how I can calculate the scalars by MITK
(coding by itk,vtk etc) and use Paraview in order to complete the
process that MITK can't (in terms of editing colors)...
On Mon, Jul 23, 2012 at 8:52 PM, Clarkson, Matt <[email protected]
<mailto:[email protected]>> wrote:
Hi Hila,
Have you managed to see any scalars in MITK?
This can be achieved by setting the property "scalar visibility" = ON.
Then looking through the code, if you have scalars associated with
each point, the choice of colour map will affect how they are
rendered.
You would set the "LookupTable" property, which is
a mitkLookupTableProperty containing a VTK lookup table.
By setting the min and max values of the range of data displayed
you can have a similar effect to Window/Level for an image.
Hope that helps.
Matt
On 23 Jul 2012, at 14:13, Hila Hiler wrote:
Hi all,
my question is very basic. I have a polydata with scalars which I
calculated by MITK.
I wasn't satisfied with the colors, so I edited the scalars by
Paraview.
Now, in which extension or way should I save the new poly data
with the updated scalars?
I tried most of the extensions, but no one presented the updated
scalars in MITK.
Please help me ...
---------- Forwarded message ----------
From: *Hila Hiler* <[email protected] <mailto:[email protected]>>
Date: Sun, Jul 22, 2012 at 10:43 AM
Subject: Saving scalars of polydata
To: "<[email protected] <mailto:[email protected]>>"
<[email protected] <mailto:[email protected]>>,
[email protected] <mailto:[email protected]>,
[email protected]
<mailto:[email protected]>
Hi All Users,
I edited the scalars (colors) of my poly data via Paraview.
In which format/way should I save it in order to see the surface
with the edited colors in MITK?
BR,
Hila
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