matplotlib-users Mailing List for matplotlib

Benjamin Root :
> Colorbars are a bit tricky. They are actually a subplot axes separate 
> from your plotting axes. And I don't think they are very easy to 
> remove. You could do a "cbar.axes.cla()", but that would still leave 
> the "ticks", tick labels and the colorbar label.
>
> I am sure that there is a way to get to what you want, but it isn't 
> immediately obvious.
Well, I tried with some success the following. Suppose the programme is:
from pylab import *
fig = figure()
ax = fig.add_subplot(111)
data = rand(250, 250)
cax = ax.imshow(data)
cbar = fig.colorbar(cax)
show()
Now, fig has two axes, the main, and the bar. The command
fig.delaxes(fig.axes[1])
gets rid of the bar and the ticks.
Is there anything wrong with that? Of course, I knew that fig.axes[1] 
was the bar, but finding it in a more complicated case should not be 
difficult.
All the best.
Jerzy Karczmarczuk

Hi everybody.
I have been trying to turn off xticks and yticks and their labels in 
matplotlibrc.
Ticks 
<http://matplotlib.sourceforge.net/api/axis_api.html#matplotlib.axis.Tick> 
have an argument "tick1On" and "label1On" but it seems I can not use these
in the config file. Is that correct?
Is there any other way to turn of ticks by default?
Thanks,
Andy

On Mon, May 21, 2012 at 8:17 AM, Chao YUE <cha...@gm...> wrote:
> Dear all,
>
> Is there a way to remove colorbar? axes.cla() clears only the region for
> map but not the colorbar.
>
> Chao
>
>
Colorbars are a bit tricky. They are actually a subplot axes separate from
your plotting axes. And I don't think they are very easy to remove. You
could do a "cbar.axes.cla()", but that would still leave the "ticks", tick
labels and the colorbar label.
I am sure that there is a way to get to what you want, but it isn't
immediately obvious. If someone knows how to do it, maybe we should make
that into a convenience function? Perhaps cbar.remove()?
Sorry I could not be more help.
Ben Root

On 05/21/2012 06:33 AM, Brian wrote:
> Greetings all,
>
> I am trying to place line labels on a plot similar to how contours in a
> contour plot are labeled (i.e. clabel). I have found that I can use
> ax.annotate but have to optimize by hand while the clabel for contours
> finds a "good" location without my having to find it. Is this feature
> available?
No, it is not. It has occurred to me that factoring out a 
"labeled_line" functionality might be useful, but I haven't looked into it.
Eric
>
> Regards,
> Brian

Greetings all,
I am trying to place line labels on a plot similar to how contours in a
contour plot are labeled (i.e. clabel). I have found that I can use
ax.annotate but have to optimize by hand while the clabel for contours
finds a "good" location without my having to find it. Is this feature
available?
Regards,
Brian

 Hi all! I'm experiencing a strange behaviour with sankey diagram. As
you can see from the attached image, the patch label it's not
positioned in the middle of the patch (as it should), but it's plotted
over the first label... The code is attached also.
Any hints?
Thanks,
 Giovanni

Dear all,
Is there a way to remove colorbar? axes.cla() clears only the region for
map but not the colorbar.
Chao
-- 
***********************************************************************************
Chao YUE
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL)
UMR 1572 CEA-CNRS-UVSQ
Batiment 712 - Pe 119
91191 GIF Sur YVETTE Cedex
Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16
************************************************************************************

On Mon, May 21, 2012 at 3:45 AM, Chao YUE <cha...@gm...> wrote:
> Dear all,
>
> I have a question on how to change default figure dpi when try to save
> figure in interactive mode.
> I try to use mat.rcParams['figure.dpi']=300 before I plot, then the
> problem is that the figure which is drawn is too big for interactive check
> (maybe because of increase in dpi).
> the mat.rcParams['figure.figsize'] is still default [8,6]. The other
> option is that always use fig=gcf(); and fig.savefig('my_plot.jpg',
> dpi=300).
> I am suing 'Agg' backend on ubuntu system.
>
> thanks et cheers,
>
> Chao
>
> Hi Chao,
Have you tried the 'savefig.dpi' rcParam? (see customization
docs<http://matplotlib.sourceforge.net/users/customizing.html>
)
Best,
-Tony

Dear all,
I have a question on how to change default figure dpi when try to save
figure in interactive mode.
I try to use mat.rcParams['figure.dpi']=300 before I plot, then the problem
is that the figure which is drawn is too big for interactive check (maybe
because of increase in dpi).
the mat.rcParams['figure.figsize'] is still default [8,6]. The other option
is that always use fig=gcf(); and fig.savefig('my_plot.jpg', dpi=300).
I am suing 'Agg' backend on ubuntu system.
thanks et cheers,
Chao
-- 
***********************************************************************************
Chao YUE
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL)
UMR 1572 CEA-CNRS-UVSQ
Batiment 712 - Pe 119
91191 GIF Sur YVETTE Cedex
Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16
************************************************************************************

Hi Alejandro,
Thank you very much for your help! It is a font priority problem. I added
cmr to the first of font.serif. Problem solved!
rcParams['font.serif'] = ['Computer Modern Roman'] + rcParams['font.serif']
Many thanks again!
A Spherical Chicken
On Sun, May 20, 2012 at 6:55 PM, Alejandro Weinstein <
ale...@gm...> wrote:
> On Sun, May 20, 2012 at 4:14 PM, Yang Zhang
> <a.s...@gm...> wrote:
> > Recently I have tried to use latex to render all the texts in a plot for
> > consistent look with other texts in a paper. However, it seems that all
> the
> > texts in the plot are rendered in bold font. Please see the attached
> code.
>
> Can you try with the following setup?
>
> params = {'backend': 'Agg',
> 'ps.usedistiller' : 'xpdf',
> 'text.usetex' : True,
> 'font.family': 'serif',
> 'font.serif' : ['Times'],
> }
> mpl.rcParams.update(params)
>
> I made all the figures in this paper using these parameters:
> http://arxiv.org/pdf/1110.5063v1
>
> Alejandro
>