[Paraview] pqColorScaleEditor crash

[Gil Wertz]

I'm sorry I think a founded the problem , I didn't know that I had to create a new "pqLookupTableManager" myself and set it to pqApplicationCore::instance() with setLookupTableManager.

I had no problem with ObjectBuilder and PluginManager that I didn't needed to instantiate.

Is it a bug ?

Thanks 

Wertz Gil
gilwertz at hotmail.com




From: gilwertz at hotmail.com
To: utkarsh.ayachit at kitware.com
Date: Fri, 1 Apr 2011 08:23:21 +0200
CC: paraview at paraview.org
Subject: Re: [Paraview] pqColorScaleEditor crash








I'm not sure of what I could give you ( I tried to debug with gdb but it just say that the application crash, I knew it -_- )

But I made a sandbox and have the same problem, the code is shorter, I'll give it.

I joined 3 files, the app file named paraview-crash-on-legend.cpp and my 3D widget.

By the way I'm open for all comment or idea of improvement or else about good practise.

Thanks for your fast answer !

I use :
Qt 4
Paraview 10.0-RC1.

Wertz Gil
gilwertz at hotmail.com




> Date: Thu, 31 Mar 2011 10:40:46 -0400
> Subject: Re: [Paraview] pqColorScaleEditor crash
> From: utkarsh.ayachit at kitware.com
> To: gilwertz at hotmail.com
> CC: paraview at paraview.org
> 
> Gil,
> 
> If you can provide the call-stack for where you're getting the
> segfault, it will be helpful.
> 
> Utkarsh
> 
> On Thu, Mar 31, 2011 at 10:13 AM, Gil Wertz <gilwertz at hotmail.com> wrote:
> > I'm making a program that make calculation and try to integrate some
> > Paraview stuff, every things goes fine, I have my render from the server,
> > but when I use pqColorScaleEditor, the dialog show himself, I can change
> > color depending on scale but when I check the legend checkbox, the
> > application crash and I have no idea why ...
> >
> > Part of my code :
> >
> >     void Widget3D::show_color_editor(){
> >
> >       scaleEdit = new pqColorScaleEditor(m_RenderView->getWidget());
> >       pqDataRepresentation* repr = m_input->getRepresentation(m_RenderView);
> >       scaleEdit->setRepresentation(repr);
> >       scaleEdit->show();
> >
> >     }
> >
> >     void Widget3D::createView(){
> >         if(m_server){
> >         // create a graphics window and put it in our main window
> >         this->m_RenderView = qobject_cast<pqRenderView*>(
> >           m_object_builder->createView(pqRenderView::renderViewType(),
> > m_server));
> >
> >         if(m_RenderView){
> >           m_layout_v->insertWidget(0,this->m_RenderView->getWidget());
> >         }else{
> >             //NLog::globalLog()->addError("Problem when creating a
> > RenderView.");
> >         }
> >         }else{
> >             //NLog::globalLog()->addError("Cannot create RenderView if no
> > paraview server connection is set.");
> >         }
> >
> >     }
> >
> >     void Widget3D::showRender()
> >     {
> >         if(m_source){
> >
> >             m_input = m_source;//m_filter2;
> >
> >
> > m_object_builder->createDataRepresentation(m_input->getOutputPort(0),
> > this->m_RenderView);
> >
> >             changeStyle();
> >
> >             pqDataRepresentation* repr =
> > m_input->getRepresentation(m_RenderView);
> >
> >
> > this->m_color->setRepresentation(m_input->getRepresentation(m_RenderView));
> >
> >
> > //this->scaleEdit->setRepresentation(m_input->getRepresentation(m_RenderView));
> >
> >             qDebug() << repr->getLookupTable();
> >             //m_RenderView->get
> >             qDebug() << repr->getLookupTableProxy();
> >
> >             // zoom to object
> >             this->m_RenderView->resetCamera();
> >             // make sure we update
> >             this->m_RenderView->render();
> >
> >         }else{
> >             //NLog::globalLog()->addError("There is no file to render.");
> >         }
> >     }
> >
> >     Widget3D::Widget3D(QWidget *parent) :
> >             QWidget(parent)
> >     {
> >         // automatically make a server connection
> >         m_core = pqApplicationCore::instance();
> >         m_object_builder = m_core->getObjectBuilder();
> >
> >         // Register ParaView interfaces.
> >         m_plugin_manager = m_core->getPluginManager();
> >
> >         // adds support for standard paraview views.
> >         m_plugin_manager->addInterface(new
> > pqStandardViewModules(m_plugin_manager));
> >
> >     createView();
> >
> >         showRender();
> >
> >
> > connect(m_show_color_palet,SIGNAL(released()),this,SLOT(show_color_editor()));
> >
> >     }
> >
> >
> >
> > You'll notice that I use client - server paraview architecture. What is
> > strange is that I have no problem seting color on my mesh but the legend
> > make the application crash.
> >
> > I tryed different things like :
> >       scaleEdit = new pqColorScaleEditor(m_RenderView->getWidget());
> >       scaleEdit->show();
> >      => it show me that there is no map ta set the legend... So I think it
> > found the map
> >
> > Maybe the problem is that the rendering is made in server side, but I did
> > not have problems with "pqDisplayColorWidget" that also use
> > pqDataRepresentation.
> >
> >
> > Thanks for any idea, if you need the full code I can provide it.
> >
> > ________________________________
> >
> > Wertz Gil
> >
> > gilwertz at hotmail.com
> >
> > ________________________________
> >
> >
> > _______________________________________________
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> >
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> >
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> >
> >
 		 	   		  

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