[Paraview] Some paraview python questions

[Eric E. Monson]

Hey David,

1.) When you create a new source, to get it to render you also need to  
create a "Representation" for it in the "View". If you're running from  
the python shell inside the paraview gui, you need to do something  
like this:

sphere = servermanager.sources.Sphere()
pm = servermanager.ProxyManager()
pm.RegisterProxy('sources','mysource',sphere)
view = servermanager.GetRenderView()
sphereRep = servermanager.CreateRepresentation(sphere,view)
pm.RegisterProxy('representations','mysourceRep',sphereRep)

After that last step the "eye" should show up (and the sphere should  
show up in the main render view.

2.) I'm not sure why the arrows don't work any more for the command  
history. In PV 3.4 it works for me, but not in CVS. It's very  
irritating...

3.) It's the Representation Proxy that contains things like  
visibility, not the source proxy itself. dir(sphereRep) will show you  
the options.

sphereRep.Visibility = 0

To iterate through all the representations you can do something like  
this:

for k, v in pm.GetProxiesInGroup('representations').iteritems():
     v.Visibility = 0

Hope this helps,
-Eric

------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group


On May 2, 2009, at 5:01 PM, David Doria wrote:

> 1) Adding a view after adding a source with python
> I have the following script which adds a sphere to the pipeline  
> browser
>
> #!/usr/bin/pvpython
> #must be run from inside paraview!
>
> from paraview import servermanager
>
> sphere = servermanager.sources.Sphere()
> pm=servermanager.ProxyManager()
> pm.RegisterProxy("sources","mysource",sphere)
>
> This adds "mysource" to the pipeline browser. According to the wiki,  
> it sounds like the default visibility should be off, but you should  
> just be able to click the "eye" next to it to actually display the  
> object. However, I am not seeing an eye at all, not even a disabled  
> one. (http://rpi.edu/~doriad/NoEye.jpg)
>
> 2) The command history (ie. pressing the up arrow to get to previous  
> commands) does not seem to work in the python shell inside paraview.  
> Can it be enabled?
>
> 3) I can access all of the open sources with this:
> p=pm.GetProxiesInGroup("sources").items()
> then get a single source with
> a=p[0] #up to p[len(p)-1]
>
> When I dir(a), there are no properties (such as visibility) listed.  
> How do you change that type of property? (the idea would be to  
> something such as iterate through all of the open items one at a  
> time and save screen shots).
>
> Any help would be great!
>
> Thanks,
>
> David
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