Did something happen with matrix_plot in 6.7

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David Einstein

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May 20, 2015, 5:54:57 PM5/20/15
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In 6.6 if I did
sage: matrix_plot(matrix([[1,2,3,4],[4,3,2,1]]))

I'd get a boring image (a bunch of squares)

In 6.7 I just get an axis.

This happens on my Mac OSX 10.10.3 and My linux machine (some recent Fedora).  Both sages are built from source.

There do not seem to be any open trac tickets for this, but I may be doing something wrong.  Am I?

John H Palmieri

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May 20, 2015, 9:46:25 PM5/20/15
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It looks like a bug was introduced, my guess is in http://trac.sagemath.org/ticket/18327. I have now reported it at http://trac.sagemath.org/ticket/18463.

--
John
 

Volker Braun

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May 21, 2015, 3:24:52 AM5/21/15
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A temp workaround is 

matrix_plot(matrix([[1,2,3,4],[4,3,2,1]]), aspect_ratio='automatic')
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