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<p class="MsoNormal">Dear All,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Maybe this is already know but I did not find information on it in the archive.</p>
<p class="MsoNormal">Whenever a ctest dashboard is ran on VTK on windows (<a href="http://open.cdash.org/index.php?project=VTK">http://open.cdash.org/index.php?project=VTK</a>), the tests comparing images are failing because of image size incompatibilities
(difference with the baseline).</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">When trying to debug this, I observed for a test like BoxClipPolyData that the render window is set to 800x640</p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#BD63C5; background:black">VTK_CREATE</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">(</span><span style="font-size:9.5pt; font-family:Consolas; color:#4EC9B0; background:black">vtkRenderWindow</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">,</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">renwin</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">);</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black"></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">renwin</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">-></span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">SetSize</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">(</span><span style="font-size:9.5pt; font-family:Consolas; color:#B5CEA8; background:black">800</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">,</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#B5CEA8; background:black">640</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">);</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4"></span></p>
<p class="MsoNormal">This is coherent with the corresponding baseline png image.</p>
<p class="MsoNormal">However, as soon as the scene is rendered</p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">renwin</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">-></span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">Render</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">();</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black"></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#569CD6; background:black">int</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">retVal</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">=</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#BD63C5; background:black">vtkRegressionTestImage</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">(</span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">renwin</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">);</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4"></span></p>
<p class="MsoNormal">the renwin size becomes 792x632. This size is actually modified in
<span style="font-size:9.5pt; font-family:Consolas; color:#569CD6; background:black">
int</span><span style="font-size:9.5pt; font-family:Consolas; color:gainsboro; background:black">
</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">*</span><span style="font-size:9.5pt; font-family:Consolas; color:#4EC9B0; background:black">vtkWin32OpenGLRenderWindow</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">::</span><span style="font-size:9.5pt; font-family:Consolas; color:#C8C8C8; background:black">GetSize</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">(</span><span style="font-size:9.5pt; font-family:Consolas; color:#569CD6; background:black">void</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4; background:black">)</span><span style="font-size:9.5pt; font-family:Consolas; color:#B4B4B4"></span></p>
<p class="MsoNormal">and corresponds to the GetClientRect(this->WindowsId,&rect) of the rendering window.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">So my question: Why renwin->SetSize(XXX,YYY) do not take into account the window border size ?</p>
<p class="MsoNormal">Correcting this would allow for a cleaner windows dashboard.</p>
<p class="MsoNormal">Is that because I don’t use the OffScreenRendering option ?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards,</p>
<p class="MsoNormal"><span style="color:#1F497D">--</span></p>
<p class="MsoNormal"><span style="color:#1F497D">Jean-Michel</span></p>
<p class="MsoNormal"> </p>
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