Re: Octave-maintainers Digest, Vol 112, Issue 43

[Rik]

On 07/20/2015 10:14 PM, address@hidden wrote:

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Re: Problem with patch () under Octave 4.0.0

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Julien Bect <address@hidden>

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Le 21/07/2015 05:54, Rik a écrit :

On 07/20/2015 08:37 AM, address@hidden wrote:

Subject:

Problem with patch () under Octave 4.0.0

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Julien Bect <address@hidden>

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07/20/2015 08:37 AM

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Hello all,

A colleague just showed me a problem that he is facing with the patch () function in Octave 4.0.0.

A script that examplifies the problem is attached, with graphical output from Octave 3.8.2 + FLTK (the expected result) and Octave 4.0.0 + qt and FTLK (no more color on the rectangles).

I have checked with Matlab 2012b and the script works there as it was working in Octave 3.8.2.

This looks very much like a regression to me, but perhaps am I missing something ?

Has anyone met this problem before ? Is it a known regression or should I file a bug report ?

Julien,

I can confirm this is a regression.  Please file a bug report along with the example script and files.

--Rik

Done : https://savannah.gnu.org/bugs/index.php?45593.

Any idea where this might come from ?

Very likely libinterp/corefcn/gl-render.cc in the routine draw_patch().  It's pretty complicated, and I did a lot of work to get it to be Matlab compatible for all sorts of different input combinations.  Apparently there is a corner case I missed.

--Rik