matplotlib-users

Re: [Matplotlib-users] LaTeX, eps, ghostscript, and the like

[Darren D. <dd...@co...>]

On Thursday 09 February 2006 10:42, John Hunter wrote:
> >>>>> "Darren" == Darren Dale <dd...@co...> writes:
>
>     Darren> There is some issue related to the dvipng hack that I dont
>     Darren> understand. Robert and Samuel want to apply the hack to
>     Darren> dvipng version 1.6. I also have version 1.6, but if I
>     Darren> apply the hack, then my output doesnt look right. Whats
>     Darren> going on here? Are there two OS dependent versions of
>     Darren> dvipng-1.6?
>
> According to the release notes for 1.6
>
>   The 1.6 release adds proper alpha channel support and xcolor
>   support.  It also reestablishes identification of preview-latex'
>   tightpage mode option.
>
> Not sure why we are seeing differences between 1.6 on different
> platforms, unless there is an endian issue in the png files.

I don't know how to proceed on this. Do I check the platform and apply the 
hack for darwin? Would that break usetex for any other mac users out there? 

Re: [Matplotlib-users] LaTeX, eps, ghostscript, and the like

[Robert H. <he...@ta...>]

On Feb 9, 2006, at 12:08 PM, Darren Dale wrote:

> I don't know how to proceed on this. Do I check the platform and  
> apply the
> hack for darwin? Would that break usetex for any other mac users  
> out there?

This is a good question..

My suspicion is that this is a problem specific to the dvipng in the  
I-Installer teTeX distribution.  We could simply suggest to mac users  
to upgrade to 1.7, but dvipng is actually a pain to compile.  I tried  
to update, but the configure script was never able to find my  
freetype (I only have freetype2 installed -- does dvipng require  
freetype 1?), and I gave up.  It also wants other graphic libraries,  
which makes me think that this is something that people will hate  
more than the Ghostscript requirement.

My only suggestion is to poll Mac users about dvipng versions and  
problems (or lack of problems).  Perhaps a short term solution would  
be to create an rc option that users could toggle if they were having  
problems.  This would at least allow us to investigate the problem  
further, without too much hacking on the part of the user.

-Rob.

-----
Rob Hetland, Assistant Professor
Dept of Oceanography, Texas A&M University
p: 979-458-0096, f: 979-845-6331
e: he...@ta..., w: http://pong.tamu.edu

Re: [Matplotlib-users] LaTeX, eps, ghostscript, and the like

[Darren D. <dd...@co...>]

I just committed a number of changes related to the usetex option. I modified 
the way we scale text to handle changes in font size, this is handled by 
latex now and closes a long standing bug related to the rendering of 
extremely long strings. I believe the recent problem related to an errant 
font command I introduced last week have also been resolved.

On Thursday 09 February 2006 13:20, Robert Hetland wrote:
> My only suggestion is to poll Mac users about dvipng versions and
> problems (or lack of problems).  Perhaps a short term solution would
> be to create an rc option that users could toggle if they were having
> problems.  This would at least allow us to investigate the problem
> further, without too much hacking on the part of the user.

Mac users can use a temporary rc parameter to get nice results with usetex. 
Just add text.dvipnghack : True to your matplotlibrc file.

Darren

Re: [Matplotlib-users] LaTeX, eps, ghostscript, and the like

[Darren D. <dd...@co...>]

I just committed to cvs an extensive cleanup of the usetex code in the 
postscript backend. In the process, I think I resolved the clipping problem 
people were reporting with ghostscript-7.07. Things look good on my machine, 
at least.

I've tested every combination of the postscript backend with and without 
usetex, with all three distiller options (None, ghostscript, and xpdf), and 
didnt find any problems. But if a problem turns up, please let me know.

Darren

[Matplotlib-users] Getting latex fonts to display in plot window

[Samuel M. S. <sm...@sa...>]

Rob,

Is there a way for matplotlib to use the latex fonts in the plot  
window not just in the saved version of the graph?
Even when I have usetex True it picks a font from the font list given  
in the matplotlibrc file.
How do I force it to use the type1cm or pslatex fonts?

Sam

Re: [Matplotlib-users] Getting latex fonts to display in plot window

[Darren D. <dd...@co...>]

On Saturday 25 February 2006 12:32, Samuel M. Smith wrote:
> Rob,
>
> Is there a way for matplotlib to use the latex fonts in the plot
> window not just in the saved version of the graph?
> Even when I have usetex True it picks a font from the font list given
> in the matplotlibrc file.

This is a new feature, it uses the font list to select the appropriate latex 
font, and the same font is used in the saved version.

> How do I force it to use the type1cm or pslatex fonts?

For type1cm, use:

font.serif : serif (or "computer modern roman")
font.sans-serif : sans-serif (or "computer modern sans-serif")
font.monospace : monospace (or "computer modern typewriter")

for pslatex, use:

font.serif : times
font.sans-serif : helvetica
font.monospace : courier

I'm planning on updating the usetex wiki page, I just havent had time to do it 
yet.

Darren