Re: Benchmark for graphics in 4.0

[Pantxo Diribarne]

Le 10/03/2015 01:43, Ben Abbott a écrit :
> > On Mar 9, 2015, at 6:08 PM, Pantxo Diribarne <address@hidden> wrote:
> >
> > Le 09/03/2015 22:57, Pantxo Diribarne a écrit :
> > > Le 09/03/2015 20:54, Andreas Weber a écrit :
> > >
> > > > Am 09.03.2015 um 09:13 schrieb Pantxo Diribarne
> > > >
> > > > > During the last months I found that this page [1] was really helpful
> > > > >
> > > > > in order to compare plots with older versions of Octave. Could we run
> > > > >
> > > > > the script that generated those plots  and make a 4.0 benchmark. I'd
> > > > >
> > > > > be happy to help on this (I have Matlab 2013a at work) but need
> > > > >
> > > > > instructions: where do I find the necessary scripts? How do I run them?
> > > > >
> > > > > @Andy: will you be able to host the resulting plots on the same page?
> > > > Hi Pantxo,
> > > >
> > > > the used scripts are in octave-src/scripts/testfun/private/
> > > >
> > > > dump_demos creates a script with the demo blocks which can be run with
> > > >
> > > > FLTK, gnuplot and Matlab,
> > > >
> > > > html_compare_plot_demos fills the result to the html template.
> > > >
> > > > Btw, do you know http://wiki.octave.org/Plot_comparison?
> > > Yes, I even edited it once :-) but my memory is more or less in my
> > > bookmarks table, in which I forgot to put that page.
> > >
> > > > I can run the scripts for FLTK and gnuplot on 4.0-rc1 but haven't access
> > > >
> > > > to Matlab (I'm even unsure if the matlab scripts would run after the
> > > >
> > > > last changes which removed for example sombrero) and yes, I can host
> > > >
> > > > them on tech-chat.de
> > > Thanks, I generated the script and will try to run it on Matlab soon.
> > >
> > > > -- Andy
> > > Pantxo
> > I forgot, if we are to generate the plots separately we should probably use the 
> > very same script. I attached the script generated from the current dev although 
> > it should be identical with 4.0-rc1.
> >
> > Pantxo
> >
> > <dump_plot_demos.m>
> Wow!. Lots of regressions since the last time this was run on Matlab.
>
> Some simple things need to be fixed.
>
> (1) In Matlab "!' is an alias for "system".
I'll take care of those.
> (2) Matlab recently introduced the "assert()" function, which is not compatible 
> with Octave's. In general tests should be avoided in demo scripts.
Agreed, those should be turned into proper tests or removed
> (3) Matlab does not use double quotes. So in demos all strings need to be 
> defined using single quotes.
I'll take care of those.
> (4) Matlab does not have a sombrero() function. The demos should avoid it.
Many demos use it and it's like Octave's second logo after all :-). I'd 
vote for keeping them.
@Andy: you talked about sombrero being removed. Is there a reason for 
not having a Matlab compatible version with the other utility scripts?
> That covers most of the changes needed to get the script to run.  I've zipped the 
> directory containing the modified script and all the output. I've also included the 
> command line output as "dump_plot_demos.txt" to help in tracking down other 
> errors I didn't catch.
>
>         https://www.dropbox.com/s/c17g6xt2rkyi8w3/dump_plot_demos.zip?dl=0
>
> To avoid regressions, would it make sense to write a test script that grabs all 
> the demos and checks for the incompatibilities above?
>
> Ben
The images produced by my version of Matlab (2013a on a Unix server) 
have many problems with fonts and 3D rendering. Ben's are probably more 
representative of what Matlab can produce (on actually supported 
platforms).

Pantxo