iterate through clips; No Error message for non existing sources on Mac

ParaView Support
1

Hey everybody,

I’d like to do some operations on all clips in my states. Their number varies between the different states.
On Windows I address the Clips like this:

i = 1
while 1:
    clipNEW = FindSource("Clip"+str(i))
    if clipNEW is None:
        break
    i += 1

Unfortunately on Mac this doesn’t work because you don’t get an error message when trying to find a Source that doesn’t exist. Instead nothing happens.

How could I do this elsewise?

2

You can get a dict of all sources using GetSources(). To get a list of all Clip filters:

[s for s in GetSources().values() if s.GetXMLName() == 'Clip']
1 Like
3

How would I do this in case of IntegrateVariables Filters?
replacing ‘Clip’ by ‘IntegrateVariables’ didn’t work

4

The “Integrate Variables” filters have IntegrateAttributes as name. It is probably easier to use the label (which are displayed in the paraview GUI) instead:

[s for s in GetSources().values() if s.GetXMLLabel() == 'Integrate Variables']
1 Like
5

Thank you @lhofmann
Now I have one last problem:
If I use

the order of the filters seems random. What I would need is all values in exactly that order how they are displayed in the Pipeline. How can I achieve that?

6

If you consistently use .sort() at all steps, it should work. For example:

[s for s in GetSources().values if s.GetXMLLabel() == 'Integrate Variables'].sort()

This will sort in place.

1 Like