Thanks, Utkarsh,

Yeah, I figured out the part about passing the needed variables as arguments 
last night.  The next problem that I ran into was that from within my script I 
create vtk objects (vtk.vtkCutter() for example).  Of course in the scope of my 
new script, vtk is not defined.  I tried importing it, but that proved to be 
less than trivial.  I know that ParaView uses its own vtk, so I tried adding 
the path to ParaView's site-packages (and various subdirectories) to 
PYTHONPATH, but it still had trouble finding some needed modules 
(vtkCommonCorePython, was the last one I encountered).  So, I bailed out on 
trying to import my code as a separate script, and instead resorted to leaving 
it all inline, but using the '\' character after every \n in order to split the 
string across multiple lines.  It is not the most ideal solution, but it at 
least makes the code readable/manageable.

Thanks again for your help,
joe

On Nov 27, 2013, at 7:56 AM, Utkarsh Ayachit wrote:

> Joe,
> 
> YOu can put your script in a function with arguments in the foo.py
> file and then call that function with the inputs argument passed in
> from the small script in the Programmable filter.
> 
> Utkarsh
> 
> On Tue, Nov 26, 2013 at 5:47 PM, joseph insley <[email protected]> wrote:
>> Thanks for the pointers.
>> 
>> Another naive follow up question..
>> 
>> The script of my programmable filter starts with:
>> input = inputs[0]
>> 
>> This works fine when the script is defined inline, but when I import it from 
>> an external file, inputs is not defined.  How do I get around this?
>> 
>> Thanks,
>> joe
>> 
>> On Nov 26, 2013, at 2:55 PM, Felipe Bordeu Weldt wrote:
>> 
>>> or you can use the execfile('myfiltersource.py') instruction of python, and 
>>> you put all you filter's code in the file.
>>> 
>>> 
>>> 
>>> Le 26 nov. 13 à 21:03, Utkarsh Ayachit a écrit :
>>> 
>>>>> my question is, can I create the script of the Programmable filter as a 
>>>>> separate python script, and then just give the Programmable filter the 
>>>>> path to this external python script?
>>>> 
>>>> Yup, you indeed can. In fact, the programmable filter/source also has
>>>> a property named "PythonPath" that you can set to the location where
>>>> you'll have the python script you want to import in the filter code
>>>> (you may have to put the path in quotes). State file attached. It will
>>>> import foo in the Python programmable source when foo.py is put in
>>>> /tmp.
>>>> 
>>>> Utkarsh
>>>> <foo.py><sample.pvsm>_______________________________________________
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