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Wolfgang,

Will you please try using these new files? I think they should solve the 
problems you were having. Please post some feedback as soon as possible. 
Thanks.

Darren


On Monday 12 June 2006 1:18 pm, Wolfgang wrote:
> Hi,
>
> I've changed back all my changes but:
>
>   if exit_status: raise RuntimeError('dvipng was not able to \
> RuntimeError: dvipng was not able to process the flowing file:
> C:\Documents and
> Settings\s0167070\.matplotlib\tex.cache\3bb1bc57100b0c65915bdda3a1f60dae.dv
>i Here is the full report generated by dvipng:

Hello,

It looks like there are a couple of typos in the equations used in the=20
function.

On Friday 07 July 2006 12:17, Faheem Mitha wrote:
> I think the bivariate normal probability distribution function
> implementation in Matplotlib is buggy. See the example code below, and
> note that the change in the x directions and the y directions is not
> uniform as it should be.
> The implementation (in mlab.py) is appended.
[snip]
> =A0 =A0 =A0z =3D Xmu**2/sigmax**2 + Ymu**2/sigmay - 2*rho*Xmu*Ymu/(sigmax=
*sigmay)
                                           ^ **2
> =A0 =A0 =A0return 1.0/(2*pi*sigmax*sigmay*(1-rho**2)) * exp( -z/(2*(1-rho=
**2)))
                                      ^ sqrt()

Compare to equations (1) and (2) from the link in the docstring:

http://mathworld.wolfram.com/BivariateNormalDistribution.html

I've attached a patch.

Mike

On Sunday 09 July 2006 12:53 am, you wrote:
> > The fix took a little more work in order to address a problem Wolfgang
> > reported with win32 a while back. Both texmanager and backend_ps have
> > been improved and tested on a bleeding edge gentoo system and a windows
> > system.
> >
> > Iff you have time, would you please update to svn 2550 and test the new
> > usetex code? Otherwise, I can test it on a RHEL4 system Monday morning.
>
> The joys of X11, I can actually test this (the fedora box is in my
> office).  It works just fine, thanks a lot!
>
> But I did notice something a bit odd, by accident.  I made up a random
> title for a test plot with various symbols, and the exported eps file
> shows a strange thing: look at the integral limits in the attached
> eps.  The -\infty is smooth (as is all the rest of the latex), while
> the \beta is all jaggy.  With ubuntu's gv it's not super visible until
> you zoom in, but with Fedora's it really stands out.
>
> Not a big issue, but I did find it a bit strange.  You know a lot more
> about this, so the reason behind it may be obvious to you.

I think this is artifact results from a combination of the ghostscript 
distiller and the postscript renderer. If you have xpdf on your system, you 
can set ps.usedistiller : xpdf in rc. That will give you embeddable eps files 
without converting the fonts to outlines (or whatever ghostscript does), so 
they scale nicely. As a bonus, if you put the figure in a pdf, the figure 
text will be searchable.

Darren

On 7/8/06, Darren Dale <dd...@co...> wrote:
> Hi Fernando,
>
> On Friday 07 July 2006 10:36 pm, you wrote:
> > On 7/7/06, Darren Dale <dd...@co...> wrote:
> > > Thanks Fernando. I'll work on this in the morning. I've been boozing all
> > > evening...
> >
> > Enjoy the evening, and in the morning, watch out for the
> >
> > cd foo && command
> >
> > syntax I used.  It's valid bash, but I don't know about win32...
>
> The fix took a little more work in order to address a problem Wolfgang
> reported with win32 a while back. Both texmanager and backend_ps have been
> improved and tested on a bleeding edge gentoo system and a windows system.
>
> Iff you have time, would you please update to svn 2550 and test the new usetex
> code? Otherwise, I can test it on a RHEL4 system Monday morning.

The joys of X11, I can actually test this (the fedora box is in my
office).  It works just fine, thanks a lot!

But I did notice something a bit odd, by accident.  I made up a random
title for a test plot with various symbols, and the exported eps file
shows a strange thing: look at the integral limits in the attached
eps.  The -\infty is smooth (as is all the rest of the latex), while
the \beta is all jaggy.  With ubuntu's gv it's not super visible until
you zoom in, but with Fedora's it really stands out.

Not a big issue, but I did find it a bit strange.  You know a lot more
about this, so the reason behind it may be obvious to you.

In any case, many thanks for getting this up and running again!

Cheers,

f

Hi Fernando,

On Friday 07 July 2006 10:36 pm, you wrote:
> On 7/7/06, Darren Dale <dd...@co...> wrote:
> > Thanks Fernando. I'll work on this in the morning. I've been boozing all
> > evening...
>
> Enjoy the evening, and in the morning, watch out for the
>
> cd foo && command
>
> syntax I used.  It's valid bash, but I don't know about win32...

The fix took a little more work in order to address a problem Wolfgang 
reported with win32 a while back. Both texmanager and backend_ps have been 
improved and tested on a bleeding edge gentoo system and a windows system. 

Iff you have time, would you please update to svn 2550 and test the new usetex 
code? Otherwise, I can test it on a RHEL4 system Monday morning.

Darren