[Paraview] patch for 9485 Save camera position
burlen
burlen.loring at gmail.com
Mon Jan 25 02:40:44 EST 2010
Sorry to resend this, but the attachments were too big for the list. I
put them here: http://nashi-submaster.ucsd.edu/movies/PV/save-cam-config/
Hi all,
The attached patch is for fetaure 9485 Save camera position(
http://public.kitware.com/Bug/view.php?id=9485 ) . This solution
provides a way of converting the camera configuration into an XML stream
which can then be either: stored in PV's internal settings to be later
accessed by one of 4 camera dialog buttons; or written to a file to be
later read back in. I attached screen shots of the modified camera
dialog and custom view button configuration dialog so you can take a
quick look and see what this is all about. Is this something I can
commit as is? If not what needs to change?
A little about the implementation follows and I'd like to propose adding
a related feature, the ability to individually save and load
configuration of PV's geomtry sources (point, line, plane, sphere etc...).
Saving and loading the camera configuration is a special case of a more
general missing feature, that of saving and loading a subset of an
individual proxy's properties. I am calling this configuration.
Something like state but much simpler, lighter and more portable. With
that in mind, rather than make a one off camera configuration
reader/writer, I took a more general approach in my solution and
implemented camera configuration reader/writer pair from abstract "proxy
configuration" reader/writer base classes. A simple way to use these
proxy configuration classes is to implement a derived class, and in the
constructor initialize the list of properties that will comprise the
configuration. The base classes can then handle the validation and IO of
the XML hierarchy. Using these classes one could also do something
similar to save and load any subset of any proxy's vector properties
pretty easily.
My intentions is that configuration can step in for state in the cases
where state is overkill, or doesn't work. For instance when trying to
reproduce a figure on a different cluster the most crucial aspects are
often the positioning of geometric sources and the camera. these are
also often the most difficult to recreate by hand since they require
precise positioning. unlike state, configuration is not tied to a
specific cluster or connection. It also provides a quick way to
duplicate a source in the same session. A configuration file depends
only on a single proxy minimizing the risk of backward incompatibility
over time.
the gist of the approach I have in mind to expose this functionality for
PV's geometry sources would be by way of a qt widget containing a load
and a save button placed in the object inspector auto generated panels.
The widget would only be added if the SM XML requested it. The XML would
be something like this:
<SourceProxy ...>
...
<ConfigurationManagerProperty>
<PropertyDomain name="managed_properties" values="..."
</ConfigurationManagerProperty>
...
</SourceProxy>
The XML would be added to each of the geometry sources. The properties
that make up the configuration of an individual source would be
explicitly listed in the managed_properties attribute and passed into
the geometry source configuration reader/writer objects which would be
derived from vtkSMProxyConfigurationReader/Writer in the attached patch.
Is this going to be a committable feature? Comments and feedback are
much appreciated. I know its a really small feature, but I think it will
improve the user's experience, and resolve some frustrations with state.
Thanks
Burlen
Scott, W Alan wrote:
> I just wrote this one up as bug number 9805. We really should have this functionality in ParaView.
>
> Thanks for catching this one.
>
> Alan
>
>
>> -----Original Message-----
>> From: paraview-bounces at paraview.org
>> [mailto:paraview-bounces at paraview.org] On Behalf Of Utkarsh Ayachit
>> Sent: Friday, October 30, 2009 4:25 AM
>> To: Bam Ting
>> Cc: Bastil2001 at yahoo.de; ParaView
>> Subject: Re: [Paraview] Save camera setting paraview 3.6.1
>>
>> I agree. We lost this functionality in transition to ParaView
>> 3.0 from 2.6. Please feel free to add it to the bug tracker
>> so that we consider it for the next major release.
>>
>> Utkarsh
>>
>> On Wed, Oct 28, 2009 at 6:35 PM, Bam Ting
>> <bampingting at gmail.com> wrote:
>>
>>> Why no option to save/restore a camera state by click a
>>>
>> button? I want
>>
>>> use this many time!! My feeling--It a little silly to make us use a
>>> python feature for idea so basics.
>>>
>>>
>>> On Wed, Oct 28, 2009 at 11:26 AM, Bastil2001 at yahoo.de
>>> <Bastil2001 at yahoo.de>
>>> wrote:
>>>
>>>> Thanks. However, since I have Paraview 3.6.1 this is not
>>>>
>> possible for
>>
>>>> me. Maybe I will have to switch since this python state
>>>>
>> files seem to
>>
>>>> be very helpful. What is the difference betwwen the curren
>>>>
>> cvs and 3.6.2?
>>
>>>> Thanks.
>>>>
>>>> BastiL
>>>>
>>>> pat marion schrieb:
>>>>
>>>>> Try this (assuming you have paraview cvshead or 3.6.2):
>>>>>
>>>>> build your pipeline
>>>>> open python dialog
>>>>> click on trace tab
>>>>> click start trace
>>>>> move the camera how you want it
>>>>> click stop trace
>>>>> click save trace
>>>>> click on the directory view tab, you should see a new python
>>>>> script, you can select it and click Run Selected
>>>>>
>>>>> Pat
>>>>>
>>>>> On Wed, Oct 28, 2009 at 2:12 PM, Bastil2001 at yahoo.de
>>>>> <Bastil2001 at yahoo.de> wrote:
>>>>>
>>>>>
>>>>>> Maybe - however I do not know how to get the trace and
>>>>>>
>> what to do
>>
>>>>>> with the output?
>>>>>>
>>>>>> Regards
>>>>>>
>>>>>> BastiL
>>>>>>
>>>>>> Adriano Gagliardi schrieb:
>>>>>>
>>>>>>
>>>>>>> Does the trace functionality not output the camera
>>>>>>>
>> settings for
>>
>>>>>>> you in python?
>>>>>>>
>>>>>>>
>>>>>>> ===================================
>>>>>>>
>>>>>>> Adriano Gagliardi MEng PhD
>>>>>>> Project Scientist
>>>>>>> Computational Aerodynamics
>>>>>>> Aircraft Research Association Ltd.
>>>>>>> Manton Lane
>>>>>>> Bedford
>>>>>>>
>>>>>>> Tel: 01234 32 4644
>>>>>>> E-mail: agagliardi at ara.co.uk
>>>>>>> Url: www.ara.co.uk
>>>>>>> -----Original Message-----
>>>>>>> From: paraview-bounces at paraview.org
>>>>>>> [mailto:paraview-bounces at paraview.org]
>>>>>>> On Behalf Of Bastil2001 at yahoo.de
>>>>>>> Sent: 28 October 2009 17:38
>>>>>>> To: 'ParaView'
>>>>>>> Subject: [Paraview] Save camera setting paraview 3.6.1
>>>>>>>
>>>>>>> This has been discussed some time before but I have no
>>>>>>>
>> solution
>>
>>>>>>> so far.
>>>>>>> I think lookmarks are intended to do this, right?
>>>>>>>
>> However, for me
>>
>>>>>>> they always re-create certain parts of the pipe and I
>>>>>>>
>> only want
>>
>>>>>>> to restore a view. How can this be done? Thanks.
>>>>>>>
>>>>>>> BastiL
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