[Paraview] Specifying filters from plugins in ParaViewWeb Visualizer proxy file

Fri Oct 27 03:56:41 EDT 2017

Hi Sebastien,

I’ve made it so that the plugin autoloads (and I’ve checked that the plugins are autoloading by selecting a reader plugin as autoload as well, and it does indeed allow me to open the associated filetype without me loading the plugin via the command line) and I still have the same result in Visualizer – the filter does not apply or appear in the pipeline.

Due to this, it must be how I am specifying the filter in the proxies file rather than the plugins not loading (I would think). What property in the plugin xml should I be using in my proxies json file?

Kind Regards,

Louise

From: Sebastien Jourdain [mailto:sebastien.jourdain at kitware.com]
Sent: 26 October 2017 17:11
To: Davies, Louise (STFC,RAL,SC) <louise.davies at stfc.ac.uk>
Cc: Scott Wittenburg <scott.wittenburg at kitware.com>; paraview at paraview.org
Subject: Re: [Paraview] Specifying filters from plugins in ParaViewWeb Visualizer proxy file

Another easy approach (not great but easy), is to check that plugin in ParaView Qt ui as auto load and then make sure Visualizer is not started with the "-dr" argument.
That way, the plugin will load at start time.

On Thu, Oct 26, 2017 at 10:06 AM, <louise.davies at stfc.ac.uk<mailto:louise.davies at stfc.ac.uk>> wrote:
Hi Scott,

Yes, the ui item is there but all that happens is that the logo flickers for like a second then nothing.

1.       I have no log output other than the regular output I get via starting the server

2.       Running 5.4.1, compiled from source

3.       It’s an .mha file, looking at the file info gives “Image (Uniform Rectilinear Grid)”. Note that I’m using the flying edges filter as an example since it’s a standard plugin and I can get it to apply to this dataset in ParaView desktop, so I don’t think it is the datatype. It also doesn’t work if I use a Wavelet like specified in this blog post: https://blog.kitware.com/accelerated-filters-in-paraview-5/

Louise

From: Scott Wittenburg [mailto:scott.wittenburg at kitware.com<mailto:scott.wittenburg at kitware.com>]
Sent: 26 October 2017 16:53

To: Davies, Louise (STFC,RAL,SC) <louise.davies at stfc.ac.uk<mailto:louise.davies at stfc.ac.uk>>
Cc: paraview at paraview.org<mailto:paraview at paraview.org>
Subject: Re: [Paraview] Specifying filters from plugins in ParaViewWeb Visualizer proxy file

I see, I read your first email a bit too quickly.  So you do see the filter appear in the web ui, but it just doesn't have any effect you can see.  A few more questions then: 1) Is there any log output you can share? 2) what version of paraview are you running?  3) what filter or dataset type are you giving as input to the flying edges filter?

Scott

On Thu, Oct 26, 2017 at 9:37 AM, <louise.davies at stfc.ac.uk<mailto:louise.davies at stfc.ac.uk>> wrote:
Hi Scott,

I am using the default pvw-visualizer.py server file, which does register ParaViewWebStartupPluginLoader before ParaViewWebProxyManager.

For clarification, this is what I’m adding to my json file (using the Flying Edges 3D example):

In the “filters” section:
{ "name": "FlyingEdges3D", "label": "Flying Edges 3D"}

Louise

From: Scott Wittenburg [mailto:scott.wittenburg at kitware.com<mailto:scott.wittenburg at kitware.com>]
Sent: 26 October 2017 16:30
To: Davies, Louise (STFC,RAL,SC) <louise.davies at stfc.ac.uk<mailto:louise.davies at stfc.ac.uk>>
Cc: paraview at paraview.org<mailto:paraview at paraview.org>
Subject: Re: [Paraview] Specifying filters from plugins in ParaViewWeb Visualizer proxy file

Hi Louise,

   Off the top of my head, I would think that what you are doing should work, but maybe Seb can chime in otherwise.  In your application server code, do you register the "ParaViewWebStartupPluginLoader" before the "ParaViewWebProxyManager"?

Scott

On Thu, Oct 26, 2017 at 9:24 AM, <louise.davies at stfc.ac.uk<mailto:louise.davies at stfc.ac.uk>> wrote:
Hello all,

I’m specifying some plugins to load with Visualizer, and I want to be able to apply filters from these plugins in Visualizer. I’ve copied the defaultProxies.json<https://github.com/Kitware/ParaView/blob/master/Web/Python/defaultProxies.json> file from the ParaView source code and I don’t know how to get ParaView to recognise my plugin filter name.

For example, I specify on the command line I want to load the default AcceleratedAlgorithms plugin. I want to expose the Flying Edges 3D filter in Visualizer. However, all of the names I can find related to the Flying Edges 3D filter in its .xml file<https://github.com/Kitware/ParaView/blob/master/Plugins/AcceleratedAlgorithms/AcceleratedAlgorithms.xml> (e.g. FlyingEdges3D, vtkFlyingEdges3D) do not allow me to use the filter. When I click on the item in the filters pane it does nothing.

Am I understanding this incorrectly? Does it work differently for filters loaded from plugins than from default ParaView filters?

Kind Regards,

Louise

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