Hi Massi,<br><br>Could you be more precise? Where exactly the program crashes in the ReadFile() function?<br>Are you sure that your file name pointer is not null?<br><br>J.<br><br><div class="gmail_quote">2013/2/7 Massinissa Bandou <span dir="ltr">&lt;<a href="mailto:Massinissa.Bandou@usherbrooke.ca" target="_blank">Massinissa.Bandou@usherbrooke.ca</a>&gt;</span><br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi everyone!!!<br>
<br>
I have a problem to display an object file with QVTKwidget. The program<br>
crashes every time I call the ReadFile() function. Can anyone help me what&#39;s<br>
wrong with this code???<br>
<br>
class ObjectCleaning<br>
{<br>
private:<br>
    Ui::ImageProcessing Widget;<br>
    const char* fileName;<br>
    vtkPolyData* data;<br>
public:<br>
    void ReadFile(const char* file){<br>
        this-&gt;fileName=file;<br>
        vtkOBJReader* obj = vtkOBJReader::New();<br>
        obj-&gt;SetFileName(file);<br>
        obj-&gt;Update();<br>
        this-&gt;data=obj-&gt;GetOutput();<br>
        this-&gt;Visualize(obj-&gt;GetOutputPort());<br>
    }<br>
void Visualize(vtkAlgorithmOutput* pdata){<br>
        vtkSmartPointer&lt;vtkPolyDataMapper&gt; Mapper =<br>
vtkSmartPointer&lt;vtkPolyDataMapper&gt;::New();<br>
        Mapper-&gt;SetInputConnection(pdata);<br>
        vtkSmartPointer&lt;vtkActor&gt; actor = vtkSmartPointer&lt;vtkActor&gt;::New();<br>
        actor-&gt;SetMapper(Mapper);<br>
        vtkSmartPointer&lt;vtkRenderer&gt; renderer =<br>
vtkSmartPointer&lt;vtkRenderer&gt;::New();<br>
        vtkSmartPointer&lt;vtkRenderWindow&gt; renderWindow =<br>
vtkSmartPointer&lt;vtkRenderWindow&gt;::New();<br>
        renderWindow-&gt;AddRenderer(renderer);<br>
        renderer-&gt;AddActor(actor);<br>
        renderer-&gt;ResetCamera();<br>
        Widget.qvtkWidget-&gt;SetRenderWindow(renderWindow);<br>
        Widget.qvtkWidget-&gt;update();<br>
    }<br>
}<br>
<br>
<br>
I used an edit line to get the file path and I&#39;m reading it as follows:<br>
void OpenFile(){<br>
      ObjectCleaning a;<br>
      Widget.editline-&gt;setText(file);<br>
      QString str = Widget.ImagePath-&gt;text();<br>
      const char *filename = str.toLatin1();<br>
      a.ReadFile(filename);<br>
}<br>
<br>
<br>
thx for your help!!<br>
<br>
Massi<br>
<br>
<br>
<br>
<br>
<br>
<br>
--<br>
View this message in context: <a href="http://vtk.1045678.n5.nabble.com/vtkOBJReader-QVTKwidget-problem-tp5718346.html" target="_blank">http://vtk.1045678.n5.nabble.com/vtkOBJReader-QVTKwidget-problem-tp5718346.html</a><br>


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</blockquote></div><br><br clear="all"><br>-- <br><b>Joachim Pouderoux</b><br><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font size="1"><i>PhD, R&amp;D Enginee</i>r</font> <br>

<b><font size="1"><a href="http://www.kitware.fr" target="_blank">Kitware SAS</a></font></b><br></blockquote>