[vtkusers] can't use my polydata after renderer->ResetCamera

Alex Malyushytskyy alexmalvtk at gmail.com
Mon Sep 17 16:14:28 EDT 2012


Most of the problems you will encounter as a programmer are results of
your bugs.
The code below contains undefined pointer and should generate at least
a warning at compile time.
Read all warnings.
Even if it did not you should use debugger before posting such questions.

        double* nc;
        double x0=nc[0]/10;
...

Alex


On Sat, Sep 15, 2012 at 1:53 AM, Tasnim <hanene-jeder at hotmail.fr> wrote:
> Good morning,
> I changed the coordinates of the points of the mesh in my
> MouseInteractorStyle Class.As result, the mesh becomes very small, I
> ResetCamera() for my renderer in order to make my mesh visible.But,I could
> not use my mesh after this change. Even , when i try to display a message
> showing the new Point's coordinates, the program crashed just after changing
> coordinates and plan:
>
> int bb=0;
>           while(bb<polydata->GetNumberOfPoints())
>  {
>
>         double* nc;
>         double x0=nc[0]/10;
>         double x1=nc[1]/10;
>         double x2=nc[2]/10;
> polydata->GetPoints()->SetPoint(bb,x0,x1,x2 );
> polydata->GetPoints()->Modified();
>         polydata->Modified();
>         polydata->Update();
>         cout<<"nouveau coourdonnées de "<<bb&lt;&lt;&quot;sont :
> &quot;&lt;&lt;x0&lt;&lt;&quot; &quot;&lt;&lt;x1&lt;&lt;&quot;
> &quot;&lt;&lt;x2&lt;&lt;endl;
>         bb++;
> }
>           renderer->ResetCamera();
> *//it crashes after reseting camera*
> double* z;
> polydata->GetPoints()->GetPoint(1,z);
>
> cout<<" nouveau coordonnées du point 1 sont : "<<z[0]<<" "<<z[1]<<"
> "<<z[2]<<"\n"<<endl;
>
>
> Any help to resolve this problem please.
>
>
> Thanks,
>
>
> Tasnim
>
>
>
> --
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