In ParaViewSource/Servers/ServerManager/Resources/filters.xml , there's a proxy named "ProbeLine" under the "filters" group. (You can directly refer to the ProbeLine filter under the "internal_filters" group, just to make it easier to understand). That's the XML for the "Plot Over Line" filter. You want to model your XML on that. You don't need to directly deal with pqLineWidget. The trick is the following property:
<InputProperty name="Source" command="SetInputConnection" label="Probe Type"> <ProxyGroupDomain name="groups"> <Group name="sources"/> </ProxyGroupDomain> <ProxyListDomain name="proxy_list"> <Proxy group="extended_sources" name="HighResLineSource" /> </ProxyListDomain> <Documentation> This property specifies the dataset whose geometry will be used in determining positions to probe. </Documentation> </InputProperty> This refers to "HighResLineSource". Now if you open utilities.xml at the same location, you'll find the xml for HighResLineSource that has some XML in <Hints/> section that defines that the line widget is to be used. Utkarsh On Mon, May 17, 2010 at 6:15 AM, Phil Amburn <amb...@gri.msstate.edu> wrote: > I am new to ParaView plugins and would really appreciate help with a task. > > I want to read a structured grid file and probe the grid with a line, almost > identical to ParaView's Plot Over Line filter. > This new filter needs to generate a particular meteorology plot called "Skew > T Log P" rather than an XY plot, otherwise I would just use Plot Over Line. > > The ability of Plot Over Line to interactively move the line is a very nice > feature that I'd like to have as well. > > I've tried two approaches, but have encountered problems with both, and > that's the reason for this request. > > First approach was to try to find the source for Plot Over Line but I wasn't > able to find that and modify the plot output. > > Second approach was to try pqLineWidget to realize an interactive line for > the probe, but I'm currently not able to make that work, either. Example > code successfully incorporating pqLineWidget would be very helpful. > > Any help or thoughts would be much appreciated. > > I'm working with ParaView 3.6.2, Windows XP, and MSVC 2008. > > Thanks, > > Phil > _______________________________________________ > 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