Re: octave 4.0.0 release candidate 4 available for ftp

[Carnë Draug]

On 1 May 2015 at 15:47, Andreas Weber <address@hidden> wrote:
> Am 01.05.2015 um 15:16 schrieb Carnë Draug:
>> On 29 April 2015 at 19:07, John W. Eaton <address@hidden> wrote:
>>> The fourth release candidate for Octave 4.0.0 is available from
>>>
>> CentOS 6.6 --- Dual Core AMD Opteron Processor 280 --- gcc 4.4.7
>> ----------------------------------------------------------------
>> <snip>
>> Failing tests:
>>
>>   * __osmesa_print__.cc: maybe needs more tolerance but may be related to
>>     a nvidia graphics card
>>
>>     libGL error: failed to open drm device: Permission denied
>>     libGL error: failed to load driver: nouveau
>>     [...]
>>     !!!!! test failed
>>     ASSERT errors for:  assert (stat (fn).size,7438,-0.1)
>>
>>       Location  |  Observed  |  Expected  |  Reason
>>          ()          6180         7438       Rel err 0.16913 exceeds tol 0.1
>
> This is interesting, if you run this test manually, is the generated
> print visually correct or garbage?
>

Yes, the image looks right.

> Do you have a better idea to check the generated image? My idea was to
> use a rought image fingerprint (sum of rgb pixels) to check if the image
> is correct.
>

If we can count on imread, the figure is displayed with imshow, and
__osmesa_print__ saves a bitmap with lossless format instead of svg,
then it would be easy to compare, since the figure would be the same.

Carnë