[vtk-developers] Failing Matplotlib tests

[David Lonie]

Hey Bill,

On Sun, Feb 10, 2013 at 2:47 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> David,
>
> The following test:
> vtkRenderingMatplotlibCxx-TestMathTextActor3D and the related test
>
> has been failing since mid-October:
>
> http://open.cdash.org/testSummary.php?project=11&name=vtkRenderingMatplotlibCxx-TestMathTextActor3D&date=2013-02-10
>
> There are two types oi failures:
> 1) A regression failure that is probably due to a zbuffer issue requiring a
> ren->ResetCameraClippingRange();
> http://open.cdash.org/testDetails.php?test=176797125&build=2806419


Sure, I'll add the call and see if that fixes it.


> and
> 2) Systems that don't seem to interpret the equations properly.
> http://open.cdash.org/testDetails.php?test=176815607&build=2806934
> On these systems, many of the matplotlib tests also fail.
>
> I also see 2) on my Fedora 13 system
>

This looks like a bad matplotlib install -- it's definitely loading
incorrect fonts in these images. I did some digging, and it looks like this
is a known issue with fedora 13. There's a workaround in comment 31 of this
bug report:

https://bugzilla.redhat.com/show_bug.cgi?id=562421#c31

Does doing this (install lyx-fonts and clearing the fontconfig cache) fix
the problem for you?

We should contact the maintainers and have them fix the installation, or
exclude these tests from fedora boxes.

Dave
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