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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal">Nothing to do with OpenGL2, but TestChartXYZ test fails on various platforms and it has been bugging me. It turns out it is failing due to floating point issues. Basically </p><p class="MsoNormal"> </p><p class="MsoListParagraph" style><span style>1)<span style="font:7.0pt "Times New Roman""> </span></span>By default the plot data points define the bounds of the axes for the chart</p><p class="MsoListParagraph" style><span style>2)<span style="font:7.0pt "Times New Roman""> </span></span>the axes define the plot area (clip stuff outside that)</p><p class="MsoListParagraph" style><span style>3)<span style="font:7.0pt "Times New Roman""> </span></span>which defines the clipping plane equations</p><p class="MsoListParagraph" style><span style>4)<span style="font:7.0pt "Times New Roman""> </span></span>which can in turn clip the original data points subject to floating point precision</p><p class="MsoNormal"> </p><p class="MsoNormal">This is what is happening (FYI, the point that disappears in the middle is actual on the boundary in the depth axis). So ... I can “fix” the test by defining axes that are slightly bigger than the data and replacing the valid image. This is what I am planning to do unless someone hollers. I’m not sure what the more general fix is. </p><p class="MsoNormal"> </p><p class="MsoNormal">Thanks</p><p class="MsoNormal">Ken</p><p class="MsoNormal"> </p><p class="MsoNormal"> </p><p class="MsoNormal">Someone wrote...</p><p class="MsoNormal"> </p><p class="MsoNormal">In reply to <a href="http://vtk.1045678.n5.nabble.com/New-OS-X-10-10-dashboards-tp5729207.html">this post</a> by Sean McBride</p><p class="MsoNormal"> </p><p class="MsoNormal">I suspect a real VTK bug behind this test failure. I get *exactly* the <br>same test image on my Windows / Visual Studio 2012 dashboards: <br><br><a href="http://open.cdash.org/testDetails.php?test=266709768&build=3539864" target="_top">http://open.cdash.org/testDetails.php?test=266709768&build=3539864</a><br><br>I suspect there is a rounding error or something like that, which is <br>causing two of the symbols to end up exactly on top of two of the <br>other symbols. <br><br><br>On Wed, Oct 22, 2014 at 1:40 PM, Sean McBride <<a href="http://vtk.1045678.n5.nabble.com/user/SendEmail.jtp?type=node&node=5729213&i=0" target="_top">[hidden email]</a>> wrote: </p><p class="MsoNormal"><br>> Hi all, <br>> <br>> I've had VTK dashboards running on OS X 10.10 for months now, but now that 10.10 is out and the NDA is over I've directed them to the public dashboard. <br>> <br>> Can someone please mark these as expected: <br>> <br>> Mac10.10-clang-dbg-x86_64 <br>> Mac10.10-clang-rel-x86_64 <br>> </p><p class="MsoNormal"> </p><p class="MsoNormal"> </p><p class="MsoNormal">Ken Martin PhD</p><p class="MsoNormal">Chairman & CFO</p><p class="MsoNormal">Kitware Inc.</p><p class="MsoNormal">28 Corporate Drive</p><p class="MsoNormal">Clifton Park NY 12065</p><p class="MsoNormal"><a href="mailto:ken.martin@kitware.com"><span style="color:blue">ken.martin@kitware.com</span></a></p><p class="MsoNormal">518 881-4901 (w)</p><p class="MsoNormal">518 371-4573 (f)</p><p class="MsoNormal"> </p><p class="MsoNormal">This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message. Thank you.</p><p class="MsoNormal"> </p></div></body></html>