[Paraview-developers] PVSM state file reader

[Utkarsh Ayachit]

Sorry, I have no clue. State loading is oft used component and
independent of how pqServerManagerModel is created. I suspect your
initialization is messed up or something else is going on here. Maybe
a debugger will shead light on why the segfault is happening

Utkarsh

On Wed, Jul 13, 2016 at 2:43 AM, Chiranjib Sur <sur.chiranjib at gmail.com> wrote:
> HI Utkarsh,
> I am revisiting again this part now.
> Any clue about how to build the pqServerManagerModel from pqApplicationCore?
> I still have the seg fault problem.
>
> Thanks,
> Chiranjib
>
> On Thu, Jun 23, 2016 at 10:40 PM, Chiranjib Sur <sur.chiranjib at gmail.com>
> wrote:
>>
>> Hi Utkarsh,
>> Still something I am missing, but I can't figure out what is it.
>>
>> Following is my intention:
>>
>>
>> 1. (From my C++ application) Load an external .pvsm file --> Scan through
>> all the objects in the pipeline (this part works in PV GUI extension).
>>
>> 2. instead of using the pqLoadStateReaction can I directly load the file
>> like this :
>>
>>    std::string pvsm_file = "myOwn.pvsm";
>>    QString qstr = QString::fromStdString(pvsm_file); // converts
>> std:;string to QString
>>
>>       pqApplicationCore*    core =  pqApplicationCore::instance();
>>    pqServer* server;
>>    vtkSMStateLoader* loader;
>>    core->loadState( pvsm_file.c_str(), server, loader);
>>
>>
>> If I do that, the program operated normally (no seg fault), but I can't
>> build the servermanager model using the pqApplicationcore, the program give
>> me a seg fault if  I do
>>
>> pqServerManagerModel* sm = core->getServerManagerModel();
>>
>> 3. I need this pqServerManagerModel to use it later for scanning through
>> the pipeline of objects as I see them in PV.
>>
>> Any help?
>>
>> Thanks,
>> Chiranjib
>>
>> On Mon, Jun 20, 2016 at 7:22 PM, Utkarsh Ayachit
>> <utkarsh.ayachit at kitware.com> wrote:
>>>
>>> > The code compiles (all the necessary headers are taken care of) but I
>>> > get a
>>> > seg fault during run time.
>>>
>>> Hard to say why. Debugger is really your friend. If you haven't
>>> already, I'd suggesting doing a debug build of ParaView and seeing
>>> what's going on.
>>>
>>> > Is there any place where I can see some examples on that.
>>> pqLoadStateReaction is the example of how to load a state. That's the
>>> code ParaView uses when you click "Load State" from the File menu.
>>>
>>> > I am familiar with step 2 by which I can scan the paraview pipeline and
>>> > get
>>> > the information all object proxies. At this stage I am not able to
>>> > figure
>>> > out how to link between step 1 and step 2.
>>>
>>> Just step through the code in pqLoadStateReaction.
>>>
>>> pqLoadStateReaction::loadState() --> pqApplicationCore::loadState()
>>> --> vtkSMSessionProxyManager::LoadXMLState() --> vtkSMStateLoader.
>>>
>>> Utkarsh
>>
>>
>