[Paraview] How to color by Cell Data

Michael Jackson mike.jackson at bluequartz.net
Mon Mar 1 11:38:33 EST 2010 

Just to follow up on this. I downloaded the precompiled ParaView 3.6.2  
for OS X (Running on OS X 10.5.8/Intel). This is how I reproduced the  
problem.

Launch ParaView.
Select a Sphere source. Note that there already is a Point Array  
called "Normals" and the Color By drop down will show it.

Run the "PointDataToCellData" filter.
Note that now there is a Cell Based "Normals" array but the Color By  
drop down ONLY lists "Solid Color". Is this correct behavior?

Just FYI, I compiled ParaView 3.6.2 on Windows 7 with VS 2008 and  
running the same exact sequence I get 2 arrays under the Color By drop  
down menu. "cellNormals" and "Normals". Where "Normals" shows up under  
the "Data Arrays" list as Cell Based Arrays.

And so it goes..
--
Mike Jackson <www.bluequartz.net>

On Mar 1, 2010, at 10:44 AM, Utkarsh Ayachit wrote:

> The the widget is Qt/Component/pqDisplayColorWidget.h|cxx.
>
> Look at pqDisplayColorWidget::reloadGUI(). In this method it gets the
> list of arrays and then populates the combo-box.
>
> Utkarsh
>
> On Mon, Mar 1, 2010 at 10:41 AM, Michael Jackson
> <mike.jackson at bluequartz.net> wrote:
>> Send me the areas to look at and I'll try to see what is happening.
>>
>> --
>> Mike Jackson <www.bluequartz.net>
>>
>> On Mar 1, 2010, at 10:33 AM, Utkarsh Ayachit wrote:
>>
>>> I've tried on Os X (4.6 Cocoa),  and Linux and still cannot  
>>> reproduce
>>> the issue. Mike, if you don't mind a little debugging, I can point  
>>> you
>>> to the relevant code.
>>>
>>> Utkarsh
>>>
>>> On Mon, Mar 1, 2010 at 10:20 AM, Michael Jackson
>>> <mike.jackson at bluequartz.net> wrote:
>>>>
>>>> Well, this is really getting weird. I have to admit that I have  
>>>> NOT tried
>>>> it
>>>> on anything other than OS X with Qt/Cocoa. I am going to try with  
>>>> OS
>>>> X/Qt-Carbon (Qt 4.6.2) and see what happens. I guess I'll try  
>>>> Windows
>>>> Next.
>>>>
>>>> --
>>>> Mike Jackson <www.bluequartz.net>
>>>>
>>>> On Mar 1, 2010, at 9:52 AM, Sven Buijssen wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I tested my nightly clean builds of ParaView CVS HEAD (pulled  
>>>>> via git) +
>>>>> Qt 4.5.2 on
>>>>> * SuSE Linux Enterprise Server 10 SP2
>>>>> * Ubuntu 9.10 Server 64bit
>>>>> * openSuSE 10.2 64bit
>>>>> * openSuSE 11.1 32bit
>>>>> * SPARC Solaris 10 64bit (PV CVS 2010-02-25, nothing newer as  
>>>>> I'm having
>>>>> some
>>>>> trouble with Mesa since Dave's commit Fri Feb 26 17:57:21 2010  
>>>>> +0000)
>>>>>
>>>>> I see for all builds both point "Ids" and cell "Ids" in the  
>>>>> Color By
>>>>> menu.
>>>>>
>>>>> I also checked the tarballs of all nightly builds since  
>>>>> beginning of
>>>>> February
>>>>> 2010 on openSuSE 11.1 and could not reproduce the issue. Cell  
>>>>> Ids is
>>>>> always there.
>>>>>
>>>>> Sven
>>>>>
>>>>>
>>>>> Michael Jackson wrote, On 01.03.2010 15:47:
>>>>>>
>>>>>> Here is a screen shot. I updated to latest cvs and recompiled.  
>>>>>> Still no
>>>>>> joy. I even tried saving the data set to a new file, then  
>>>>>> loading the
>>>>>> file. No luck there either. Any other suggestions are welcome.  
>>>>>> I do
>>>>>> have
>>>>>> the data file if you are interested.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> ___________________________________________________________
>>>>>> Mike Jackson                      www.bluequartz.net
>>>>>>
>>>>>>
>>>>>> On Feb 28, 2010, at 2:01 PM, Jérôme wrote:
>>>>>>
>>>>>>> Well, I just updated my worktree with the latest CVS. The  
>>>>>>> problem
>>>>>>> remains,
>>>>>>> both in debug and release. Note that Yum (package manager of  
>>>>>>> Fedora)
>>>>>>> installs qt-4.6.2.
>>>>>>>
>>>>>>> I will trace the code tomorrow monday.
>>>>>>>
>>>>>>> Jerome
>>>>>>>
>>>>>>> 2010/2/28 Utkarsh Ayachit <utkarsh.ayachit at kitware.com>
>>>>>>> That is weird. I am on Mac with Qt 4.6.0, Cocoa and the latest  
>>>>>>> CVS
>>>>>>> ParaView and I see both point "Ids" and cell "Ids" in the  
>>>>>>> Color By
>>>>>>> menu. I'll test it out with my linux box at work tomorrow.
>>>>>>>
>>>>>>> Utkarsh
>>>>>>>
>>>>>>> On Sun, Feb 28, 2010 at 9:44 AM, Michael Jackson
>>>>>>> <mike.jackson at bluequartz.net> wrote:
>>>>>>>>
>>>>>>>> Maybe it is Qt versions or ParaView versions? I am using Qt  
>>>>>>>> 4.6.1
>>>>>>>
>>>>>>> compiled
>>>>>>>>
>>>>>>>> for Cocoa on OS X 10.5.8 Intel. I am using ParaView from <url =
>>>>>>>> git://github.com/Kitware/ParaView.git> which was last updated  
>>>>>>>> about
>>>>>>>
>>>>>>> a week
>>>>>>>>
>>>>>>>> ago. When I get to the office on Monday I can try the same with
>>>>>>>
>>>>>>> ParaView
>>>>>>>>
>>>>>>>> 3.6.2 and see if the problem persists.
>>>>>>>>
>>>>>>>> As far as Data, I _could_ share it, but like Jerome stated,  
>>>>>>>> you can
>>>>>>>> reproduce it with a simple sphere source, then "Generate  
>>>>>>>> Normals".
>>>>>>>> The
>>>>>>>> complete source code can be found here:
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> <href=http://www.bluequartz.net/cgi-bin/gitweb/gitweb.cgi?p=PVMXADataModel.git;a=blob;f=Source/Server/CrystalInterfaceColoringFilter/vtkCrystalInterfaceColoringFilter.cpp;hb=de5d94a3a128a08a534230deca9057e4e57d0358 
>>>>>>> >
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _________________________________________________________
>>>>>>>> Mike Jackson                  mike.jackson at bluequartz.net
>>>>>>>>
>>>>>>>> On Feb 28, 2010, at 7:51 AM, Jérôme wrote:
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I confirm the problem: even with your script, CELL_DATA are  
>>>>>>>>> not
>>>>>>>
>>>>>>> enabled.
>>>>>>>>>
>>>>>>>>> They don't appear in the "Color by" combo box, but the cell  
>>>>>>>>> Ids are
>>>>>>>>> present
>>>>>>>>> in the Information panel. It works as expected when I try with
>>>>>>>
>>>>>>> POINT_DATA.
>>>>>>>>>
>>>>>>>>> I just had a doubt: Qt has been updated to 4.6 recently on my
>>>>>>>
>>>>>>> computer,
>>>>>>>>>
>>>>>>>>> and
>>>>>>>>> I don't know if my ParaView is up-to-date according to this...
>>>>>>>>>
>>>>>>>>> Let's update, compile, wait and see.
>>>>>>>>>
>>>>>>>>> Jerome
>>>>>>>>>
>>>>>>>>> 2010/2/28 Favre Jean <jfavre at cscs.ch>
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> I noted this problem a few days ago.
>>>>>>>>> A *really* simple example:
>>>>>>>>> - Add a SphereSource
>>>>>>>>> - Connect to a "Generate Ids" filter
>>>>>>>>> - Update: The information panel shows a 'Ids' array for  
>>>>>>>>> points and
>>>>>>>>> for
>>>>>>>>> cells, but
>>>>>>>>> the "Color by" doesn't give the choice of cell array.
>>>>>>>>>
>>>>>>>>> Jerome
>>>>>>>>> -----------------
>>>>>>>>>
>>>>>>>>> I cannot reproduce the problem. The following code works  
>>>>>>>>> exactly as
>>>>>>>>> expected and enables the coloring by POINT_DATA or CELL_DATA
>>>>>>>>>
>>>>>>>>> sph1 = Sphere()
>>>>>>>>> genid1 = GenerateIds(Input=sph1)
>>>>>>>>> rep1 = Show(genid1)
>>>>>>>>> rep1.ColorArrayName = 'Ids'
>>>>>>>>> rep1.ColorAttributeType = 'CELL_DATA'
>>>>>>>>>
>>>>>>>>> ----------------
>>>>>>>>> Jean M. Favre
>>>>>>>>> Swiss National Supercomputing Center
>>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Powered by www.kitware.com
>>>>>>
>>>>>> Visit other Kitware open-source projects at
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>>>>>> http://paraview.org/Wiki/ParaView
>>>>>>
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>>>>>
>>>>
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
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>>>>
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>>

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