[Paraview] Detect Catalyst extraction from within a coprocessor

[Michalke, Simon]

Hi Andy,

our optimization software is able to stream live results via http when 
configured. This stream is pointed at a continuous running webservice 
that saves the current progress. A user can for example view the current 
scalar variables over the steps to make sure the problem converges: 
http://eamc075.eam.uni-erlangen.de
Simple 2D data should also be viewable at some point.
Now comes catalyst:
The webservice should also be able to redirect the data to a catalyst 
instance. A user can enter the ip and port online and will receive the 
data from the webservice onto his local machine. The data is in general 
not bulky so I can send all data to the client and do the processing on 
the machine running paraview/catalyst.

This means that the client catalyst will never directly connect to the 
simulation or vice versa in our use case.

Regards,
Simon

(forgot the cc to list)

Am 2018-02-27 17:21, schrieb Andy Bauer:
> Hi Simon,
> 
> Currently there's nothing that allows the coprocessor to get 
> information
> that the user has clicked on the extract icon during a Catalyst Live
> connection. You may be able to hack in a solution though by looking at
> either vtkLiveInSituLink (
> https://www.paraview.org/ParaView/Doc/Nightly/www/cxx-doc/classvtkLiveInsituLink.html)
> or coprocessing.py.
> 
> By the way, I'm curious about the use case for this -- what 
> functionality
> are you hoping to do with this information? FYI: we're hoping to add
> significant functionality in the near future for Catalyst Live so 
> something
> like that may be supported in the near future.
> 
> Best,
> Andy
> 
> On Tue, Feb 27, 2018 at 9:47 AM, Michalke, Simon 
> <simon.michalke at fau.de>
> wrote:
> 
>> Hi,
>> 
>> is there any way that the coprocessor can detect if the catalyst user
>> clicks on the extract icon? Something like a function that sleeps 
>> until a
>> new coprocess steps needs to be done.
>> Or do I have to continuously poll the catalyst client if it needs a 
>> new
>> batch of data transmitted?
>> 
>> Simon
>> _______________________________________________
>> Powered by www.kitware.com
>> 
>> Visit other Kitware open-source projects at 
>> http://www.kitware.com/opensou
>> rce/opensource.html
>> 
>> Please keep messages on-topic and check the ParaView Wiki at:
>> http://paraview.org/Wiki/ParaView
>> 
>> Search the list archives at: http://markmail.org/search/?q=ParaView
>> 
>> Follow this link to subscribe/unsubscribe:
>> https://public.kitware.com/mailman/listinfo/paraview
>>