matplotlib-devel Mailing List for matplotlib

On Wednesday 04 May 2005 3:45 pm, John Hunter wrote:
> >> To fix this one should get the kerning information from the
> >> font, and do the kerning manually. Have a look at dvips output
> >> to get inspiration.
>
> We could go the route of embedding type1 fonts and using afm files for
> layout -- this wouldn't be too hard. But our energy might be best
> served by converting the mathtext data tables to map text characters
> to unicode and then using a set of unicode fonts, using freefont for
> now (GPLd I think)
>
> 
> http://sourceforge.net/mailarchive/forum.php?thread_id=7090823&forum_id=361
>87
>
> and STIX fonts when they are done 
Let me make sure I understand this. If we map mathtext characters to unicode, 
and use freefont for now, will that help prepare MPL for STIX fonts? If there 
is an option available now that moves MPL in the direction of a permanent 
solution, then it seems like the decision is already made. Can we come up 
with some kind of a plan or design document for what steps we need to take? I 
will pick at it after work, if I understand what needs to be done.
> I realize you have a thesis to print, so hopefully we can figure out a
> smooth path to success soon! When do you need to turn that thing in?
Now that the new formatter is complete, I have to find new ways to 
procrastinate. I will defend in August.

>>>>> "Marcin" == Marcin Wojdyr <wo...@un...> writes:
 Marcin> On Wed, 4 May 2005, John Hunter wrote:
 >> I don't like the idea of making the label a string or None,
 >> because it leads to code that is difficult to maintain and may
 >> break existing code that relies on the label to be a string. I
 >> would be amenable to using a sentinel string, such as
 >> '_nolegend_' or something like that.
 Marcin> Ok, it would also work well for me.
OK, could you resend a patch against CVS?
 Marcin> BTW when I was reading mpl docs I stopped for a while on
 Marcin> description of 'hold'. I'm not used to Matlab and didn't
 Marcin> understand what is "hold state". (I found it out in
 Marcin> Matlab docs).
When hold is True, subsequent plot commands will be added to the
current axes. When hold is False, the current axes and figure
will be cleared on the next plot command
There are many ways to manipulate the hold state. You can call the
pylab (or Axes) "hold" function with a boolean. You can pass hold as
a kwarg to a plot command to temporarily override the default. And
you can set the default value in your rc file.
For example, suppose you have hold=False in rc. Then every plot
command will clear the previous one. But you may want to add a new
overplot
 plot([1,2,3])
 plot([2,4,6], hold=True) # overplot
The default rc file that ships with matplotlib already has hold : True
be default (matlab is hold False by default).
You can query the hold state with ishold.
 Marcin> And if I could say what features I'm lacking most in MPL,
 Marcin> it would be: 1. plotting a function like in, say, gnuplot,
 Marcin> without using arange() 2. something like wxPython demo,
 Marcin> that contains all the examples
 1) Would definitely be nice -- we've talked about it.
 2) Have you seen the examples directory in the matplotlib src
 distribution, and is also available here
 http://matplotlib.sourceforge.net/matplotlib_examples_0.80.zip ?
 Or do you mean something else?
JDH

On Wed, 4 May 2005, John Hunter wrote:
> I don't like the idea of making the label a string or None, because it
> leads to code that is difficult to maintain and may break existing
> code that relies on the label to be a string. I would be amenable to
> using a sentinel string, such as '_nolegend_' or something like that.
Ok, it would also work well for me. 
BTW when I was reading mpl docs I stopped for a while on description of 
'hold'. I'm not used to Matlab and didn't understand what is "hold state".
(I found it out in Matlab docs).
And if I could say what features I'm lacking most in MPL, it would be: 
1. plotting a function like in, say, gnuplot, without using arange()
2. something like wxPython demo, that contains all the examples
Thanks for your work,
Marcin
-- 
Marcin Wojdyr | http://www.unipress.waw.pl/~wojdyr/