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.ro...@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.ro...@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.ro...@mh-hannover.de
http://www.mh-hannover.de/anatomie.html
_______________________________________________
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Visit other Kitware open-source projects at 
http://www.kitware.com/opensource/opensource.html

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http://paraview.org/Wiki/ParaView

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