Hi, Yes the trace is great, it still couldn't tell me how to actually extract the numbers along a plotoverline though, without doing a Spreadsheet view or something.
You have probably figured out how to do a plotoverline using the Trace: from paraview.simple import * reader = servermanager.sources.XMLUnstructuredGridReader(FileName = "/var/tmp/file.vtu") pl = PlotOverLine(Input = reader) pl.Source.Point1 = [-7000, -5000, 0] pl.Source.Point2 = [4300, 6300, 1111.75] CreateXYPlotView() d = Show() d.XArrayName = 'arc_length' d.SeriesVisibility = ['namecolours (0)', '0', 'namecolours (1)', '0', 'namecolours (2)', '0', 'vtkValidPointMask', '0', 'arc_length', '0'] # whatever your variables are d.UseIndexForXAxis = 0 Render() But to actually get the values out you don't even need to do the plot a simple: from paraview.simple import * reader = servermanager.sources.XMLUnstructuredGridReader(FileName = "/var/tmp/file.vtu") pl = PlotOverLine(Input = reader) pl.Source.Point1 = [-7000, -5000, 0] pl.Source.Point2 = [4300, 6300, 1111.75] does, followed by stuff like this: # to get the number of points on the plotoverline line pl = servermanager.Fetch(pl) pl.GetPoints().GetData().GetNumberOfPoints() # to get the (x,y,z) info for the points on the pol line pl.GetPoints().GetData().GetValue(0) -> x of first point pl.GetPoints().GetData().GetValue(1) -> y of first point pl.GetPoints().GetData().GetValue(2) -> z of first point etc # to get the data on the line pl.GetPointData().GetArray(0).GetValue(0) etc # and to get the name of the array on the line pl.GetPointData().GetArrayName(0) -> 'cfnode' etc Matt Wilkins On Wed, Nov 03, 2010 at 11:38:25AM -0400, [email protected] wrote: > Dude! You are sooooo awesome! Why didn't I think of that? Because > I thought trace was for something altogether different from that. > > Now I feel like I can do anything! > > Thanks immensely for your help, > Hamilton Woods > > > ---------- Original Message ----------- > From: emonson at cs.duke.edu > To: [email protected] > Cc: paraview list <[email protected]> > Sent: Wed, 3 Nov 2010 11:20:47 -0400 > Subject: Re: [Paraview] How to use a filter in a Python script? > > > Hey Hamilton, > > > > You should also try using the Python Trace (and Trace State) > > functionality now built into ParaView. After (or while) you set up > > your pipeline in ParaView this will give you a Python script to > > accomplish the same thing. This page tells a bit about the current > > (git) version: > > > > http://www.paraview.org/Wiki/Python_GUI_Tools > > > > You'll see the Start Trace and Trace State if you go to Tools- > > >Python Shell, and then click on the Trace tab on the right of the panel. > > > > -Eric > > > > ------------------------------------------------------ > > Eric E Monson > > Duke Visualization Technology Group > > > > On Nov 3, 2010, at 10:00 AM, Sebastien Jourdain wrote: > > > > > Hi Hamilton, > > > > > > You can look at http://www.paraview.org/Wiki/ParaView/Python_Scripting > > > and that http://www.paraview.org/Wiki/ParaViewUsersGuide/List_of_filters > > > > > > Seb > > > > > > On Tue, Nov 2, 2010 at 10:31 PM, <[email protected]> wrote: > > >> I am a newbie to Paraview and have little experience programming Python. > > >> I > > >> would like to know how to call a particular filter from within Python. > > >> The > > >> only filter I have seen referenced in the Python scripting documentation > > >> is > > >> Shrink(). > > >> > > >> I want to retrieve the scalar values along a line segment (Plot Over > > >> Line(ProbeLine)) that extends through an unstructured 3D grid. I have > > >> "The > > >> ParaView Guide", "The VTK User's Guide" and "The Visualization Toolkit: > > >> An > > >> Object-Oriented Approach to 3D Graphics". I don't see how to > programmatically > > >> do this. I have looked on all of the ParaView web sites that I can > > >> find, and > > >> in tutorials. I do not even see a list of available filter names. > > >> > > >> Is there a guide for Python Scripting (chapter 20 of The ParaView Guide > is the > > >> best I have found) that covers using filters? Example code? Anything? > > >> How > > >> do you even find the filter names in the documentation? > > >> > > >> Thanks for any help, > > >> Hamilton Woods > > >> _______________________________________________ > > >> Powered by www.kitware.com > > >> > > >> Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > >> > > >> Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > >> > > >> Follow this link to subscribe/unsubscribe: > > >> http://www.paraview.org/mailman/listinfo/paraview > > >> > > > _______________________________________________ > > > Powered by www.kitware.com > > > > > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > > > > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > > > > > Follow this link to subscribe/unsubscribe: > > > http://www.paraview.org/mailman/listinfo/paraview > ------- End of Original Message ------- > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
