If you set a variable in the paraview python console before running a script, the script will have access to that variable. So you can pass arguments to a python script by just setting sys.argv in the python console before running the script.<br>
<br>Sean... I happen to have a patch that allows raw_input() to work from the paraview gui. Patch is attached. When the script calls raw_input() it causes a focused qt text entry box to appear at the cursor. The entire paraview gui is blocked until the user hits enter. Not perfectly elegant, but works pretty well.<br>
<br>The pvblot plugin I wrote makes extensive use of querying the user for input from the gui. I decided not to use raw_input() because it blocks the gui. Instead I cooked up a fancy asynchronous input scheme using python generators, decorators, and the yield statement. It works really well, but requires that you write your script using yield instead of raw_input().<br>
<br>Berk, I think we could add a method to the paraview.simple module that does a callback to the gui for a file dialog, it would be similar to my attached raw_input() patch.<br><br>Pat<br><br><div class="gmail_quote">On Thu, Feb 18, 2010 at 12:27 PM, Sean Ziegeler <span dir="ltr"><<a href="mailto:sean.ziegeler@nrlssc.navy.mil">sean.ziegeler@nrlssc.navy.mil</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Actually, that isn't a bad idea. There doesn't seem to be a way of getting input to a Python script, as raw_input() doesn't appear to work in the Python Shell (in the PV GUI, at least) either.<div class="im">
<br>
<br>
On 02/18/10 08:19, Berk Geveci wrote:<br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">
I didn't mention Python because it doesn't give you a way of popping up<br>
a file chooser - you have to edit the script and change the file name.<br>
Maybe we should add a Python command to pop up the file chooser... It is<br>
not super easy but if there is enough demand, we can do it. Feel free to<br>
add a feature request to the bug tracker or uservoice.<br>
<br>
-berk<br>
<br>
On Thu, Feb 18, 2010 at 8:06 AM, Jean M. Favre <<a href="mailto:jfavre@cscs.ch" target="_blank">jfavre@cscs.ch</a><br></div><div><div></div><div class="h5">
<mailto:<a href="mailto:jfavre@cscs.ch" target="_blank">jfavre@cscs.ch</a>>> wrote:<br>
<br>
Natalie Happenhofer wrote:<br>
> Another topic - selecting volumes of interest: I can do that for<br>
one file, and it works well. But is it really necessary to repeat<br>
this procedure for every file I open in Paraview? Is it possible to<br>
select a volume of interest and for every file I open afterward,<br>
just this VoI is displayed?<br>
><br>
><br>
I would suggest doing this in Python in order to avoid reading the full<br>
resolution dataset by default. When opening a file, paraview forces you<br>
to click Apply before you can do anything else (such as creating an<br>
Extract Subset filter). Thus, the data reader uses<br>
UPDATE_EXTENT=WHOLE_EXTENT and you may run out of memory before being<br>
able to subset the grid.<br>
<br>
if instead, you instantiate your reader, do not execute it, do not<br>
create a representation for it, then create an Extract Subset with the<br>
VOI you desire, and then execute the whole thing, you will end-up<br>
passing the VOI extents upstream directly to the reader, and your reader<br>
will only execute once with the correct extents.<br>
<br>
Use the python shell and the followin example:<br>
<br>
reader = XMLImageDataReader( FileName= '/path/to/data/foo.vti'] )<br>
reader.PointArrayStatus = ['data1']<br>
<br>
ExtractSubset1 = ExtractSubset()<br>
<br>
ExtractSubset1.VOI = [2000, 2255, 2000, 2255, 2000, 2255]<br>
<br>
DataRepresentation2 = Show(ExtractSubset1)<br>
<br>
Render()<br>
<br>
Jean--<br>
Swiss National Supercomputing Center<br>
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