[Paraview] loading multiple state-files without hiding and resetting already loaded objects

[Grothausmann, Roman Dr.]

Dear Cory,


Many thanks for your reply pointing out the known limitations and suggestions 
for restoring with python. I tried to give that a try:
https://github.com/romangrothausmann/ParaView_scripts/blob/146aa352d1a3ada203bcf91d17e11c169bc99583/pvsm-multi.py#L44-L61

but am stuck at the python error:
TypeError: SetProperties() takes at most 1 argument (2 given)
while the docs suggest to specify 2 args:
https://www.paraview.org/ParaView/Doc/Nightly/www/py-doc/paraview.simple.html?highlight=getproperty#paraview.simple.SetProperties

What am I missing here? Do I have to set each property by itself (i.e. from 
GetProperty) or can I just set the whole list of properties from 
ListProperties() in one go?
Is the approach for restoring to go through all objects from the last LoadState 
the right one?

Many thanks for looking into this.
Roman

On 07/09/17 23:37, Cory Quammen wrote:
> Hi Roman,
>
> It turns out ParaView was not designed for this use case because of
> certain difficulties discussed here:
>
> https://gitlab.kitware.com/paraview/paraview/issues/17442
>
> In your Python script, you could manually cash all the properties of
> the existing representations and restore them after loading the most
> recent state file.
>
> The functions
>
> reprs = GetRepresentations()
> repr = reprs.values()[0]
> props = repr.ListProperties()
> GetProperty(repr, props[0])
>
> would be helpful for this.
>
> Cory
>
>
> On Mon, Sep 4, 2017 at 8:42 AM, Grothausmann, Roman Dr.
> <grothausmann.roman at mh-hannover.de> wrote:
>> Dear mailing list members,
>>
>>
>> It seems that PV (and paraview.simple.LoadState) by default hides already
>> loaded objects (and resets e.g. their coloring) when another state-file is
>> loaded.
>> Is there a way to load multiple state-files after one another without hiding
>> and resetting already existent objects? I.e. a way to concatenate multiple
>> state-files and leave their objects in the state as they got loaded (e.g.
>> colored, hidden/visible)?
>> I do understand that loading a new state-file will reset the camera, but not
>> the rest.
>> Here's my initial attempt to achieve this with pvpython:
>> https://github.com/romangrothausmann/ParaView_scripts/blob/90eb4ca8499070bed941d50b89ebea82fd6a9e23/pvsm-multi.py
>>
>> Any help or hints are very much appreciated
>> Roman
>>
>> --
>> Dr. Roman Grothausmann
>>
>> Tomographie und Digitale Bildverarbeitung
>> Tomography and Digital Image Analysis
>>
>> Medizinische Hochschule Hannover
>> Institut für Funktionelle und Angewandte Anatomie
>> OE 4120, Carl-Neuberg-Str. 1, 30625 Hannover, Deutschland
>>
>> Tel. +49 511 532-2900
>> grothausmann.roman at mh-hannover.de
>> http://www.mh-hannover.de/anatomie.html
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-- 
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Medizinische Hochschule Hannover
Institut für Funktionelle und Angewandte Anatomie
OE 4120, Carl-Neuberg-Str. 1, 30625 Hannover, Deutschland

Tel. +49 511 532-2900
grothausmann.roman at mh-hannover.de
http://www.mh-hannover.de/anatomie.html