matplotlib-users Mailing List for matplotlib

Mauro Cavalcanti wrote:
> Dear Jeff,
>
> Sorry, I then got a TypeError: remove() takes exactly one argument (0
> given)... :-(
>
> Best regards,
> 
Mauro: Don't know why that would be. Here's what I get
% ipython --pylab
In [3] from mpl_toolkits.basemap import Basemap
In [4]: m = Basemap()
In [5]: c = m.drawcountries() # map pops up with country boundaries drawn
In [6]: type(c)
Out[6]: <class 'matplotlib.collections.LineCollection'>
In [7]: help(c.remove)
Help on method remove in module matplotlib.artist:
remove(self) method of matplotlib.collections.LineCollection instance
 Remove the artist from the figure if possible. The effect
 will not be visible until the figure is redrawn, e.g., with
 :meth:`matplotlib.axes.Axes.draw_idle`. Call
 :meth:`matplotlib.axes.Axes.relim` to update the axes limits
 if desired.
In [8]: c.remove()
In [9]: draw() # countries disappear from map.
-Jeff
> 2008年12月5日 Jeff Whitaker <js...@fa...>:
> 
>> Mauro Cavalcanti wrote:
>> 
>>> Dear Jeff,
>>>
>>> Thanks for your fast reply. Unfortunately, I have not been able to get
>>> yet working:
>>>
>>> I have a menu event like this:
>>>
>>> borders = []
>>> if self.MapDrawBorderItem.IsChecked():
>>> borders = self.map.drawcountries()
>>> else:
>>> self.ax.lines.remove(borders)
>>> # .... redraw the map here...
>>>
>>> But I got a ValueError: list.remove(x): x not in list
>>>
>>> Any hints?
>>>
>>> 
>> Mauro: Instead of
>>
>> self.ax.lines.remove(borders)
>>
>> I think should simply do
>>
>> borders.remove()
>>
>> -Jeff
>> 
>>> With best regards,
>>>
>>> 2008年12月5日 Jeff Whitaker <js...@fa...>:
>>>
>>> 
>>>> Mauro Cavalcanti wrote:
>>>>
>>>> 
>>>>> Dear ALL,
>>>>>
>>>>> Always engaged in pushing MPL/Basemap ahead of its limits, here am I
>>>>> again with a humble question: I want to be able to toggle the display
>>>>> of country boundaries on a map using a menu option on my wxPython
>>>>> interface. It is quite easy to initially plotting a map without
>>>>> borders and then toggling them on, but I could not figure out a way to
>>>>> toggling them off (if possible, without redrawing the whole map). Is
>>>>> there any trick to do this? ;-)
>>>>>
>>>>> Thanks in advance!
>>>>>
>>>>> With warmest regards,
>>>>>
>>>>>
>>>>>
>>>>> 
>>>> Mauro:
>>>>
>>>> The drawcountries() method returns a matplotlib line collection.
>>>> Invoking
>>>> the remove() method of the line collection will remove the countries from
>>>> the axes instance.
>>>>
>>>> -Jeff
>>>>
>>>> --
>>>> Jeffrey S. Whitaker Phone : (303)497-6313
>>>> Meteorologist FAX : (303)497-6449
>>>> NOAA/OAR/PSD R/PSD1 Email : Jef...@no...
>>>> 325 Broadway Office : Skaggs Research Cntr 1D-113
>>>> Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg
>>>>
>>>>
>>>>
>>>> 
>>>
>>>
>>> 
>> --
>> Jeffrey S. Whitaker Phone : (303)497-6313
>> Meteorologist FAX : (303)497-6449
>> NOAA/OAR/PSD R/PSD1 Email : Jef...@no...
>> 325 Broadway Office : Skaggs Research Cntr 1D-113
>> Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg
>>
>>
>> 
>
>
>
> 
-- 
Jeffrey S. Whitaker Phone : (303)497-6313
Meteorologist FAX : (303)497-6449
NOAA/OAR/PSD R/PSD1 Email : Jef...@no...
325 Broadway Office : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg

Mauro Cavalcanti wrote:
> Dear Jeff,
>
> Thanks for your fast reply. Unfortunately, I have not been able to get
> yet working:
>
> I have a menu event like this:
>
> borders = []
> if self.MapDrawBorderItem.IsChecked():
> 	borders = self.map.drawcountries()
> else:
> 	self.ax.lines.remove(borders)
> # .... redraw the map here...
>
> But I got a ValueError: list.remove(x): x not in list
>
> Any hints?
> 
Mauro: Instead of
self.ax.lines.remove(borders)
I think should simply do
borders.remove()
-Jeff
> With best regards,
>
> 2008年12月5日 Jeff Whitaker <js...@fa...>:
> 
>> Mauro Cavalcanti wrote:
>> 
>>> Dear ALL,
>>>
>>> Always engaged in pushing MPL/Basemap ahead of its limits, here am I
>>> again with a humble question: I want to be able to toggle the display
>>> of country boundaries on a map using a menu option on my wxPython
>>> interface. It is quite easy to initially plotting a map without
>>> borders and then toggling them on, but I could not figure out a way to
>>> toggling them off (if possible, without redrawing the whole map). Is
>>> there any trick to do this? ;-)
>>>
>>> Thanks in advance!
>>>
>>> With warmest regards,
>>>
>>>
>>> 
>> Mauro:
>>
>> The drawcountries() method returns a matplotlib line collection. Invoking
>> the remove() method of the line collection will remove the countries from
>> the axes instance.
>>
>> -Jeff
>>
>> --
>> Jeffrey S. Whitaker Phone : (303)497-6313
>> Meteorologist FAX : (303)497-6449
>> NOAA/OAR/PSD R/PSD1 Email : Jef...@no...
>> 325 Broadway Office : Skaggs Research Cntr 1D-113
>> Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg
>>
>>
>> 
>
>
>
> 
-- 
Jeffrey S. Whitaker Phone : (303)497-6313
Meteorologist FAX : (303)497-6449
NOAA/OAR/PSD R/PSD1 Email : Jef...@no...
325 Broadway Office : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg

Mauro Cavalcanti wrote:
> Dear ALL,
>
> Always engaged in pushing MPL/Basemap ahead of its limits, here am I
> again with a humble question: I want to be able to toggle the display
> of country boundaries on a map using a menu option on my wxPython
> interface. It is quite easy to initially plotting a map without
> borders and then toggling them on, but I could not figure out a way to
> toggling them off (if possible, without redrawing the whole map). Is
> there any trick to do this? ;-)
>
> Thanks in advance!
>
> With warmest regards,
>
> 
Mauro:
The drawcountries() method returns a matplotlib line collection. 
Invoking the remove() method of the line collection will remove the 
countries from the axes instance.
-Jeff
-- 
Jeffrey S. Whitaker Phone : (303)497-6313
Meteorologist FAX : (303)497-6449
NOAA/OAR/PSD R/PSD1 Email : Jef...@no...
325 Broadway Office : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg

Dear ALL,
Always engaged in pushing MPL/Basemap ahead of its limits, here am I
again with a humble question: I want to be able to toggle the display
of country boundaries on a map using a menu option on my wxPython
interface. It is quite easy to initially plotting a map without
borders and then toggling them on, but I could not figure out a way to
toggling them off (if possible, without redrawing the whole map). Is
there any trick to do this? ;-)
Thanks in advance!
With warmest regards,
-- 
Dr. Mauro J. Cavalcanti
Ecoinformatics Studio
P.O. Box 46521, CEP 20551-970
Rio de Janeiro, RJ, BRASIL
E-mail: mau...@gm...
Web: http://studio.infobio.net
Linux Registered User #473524 * Ubuntu User #22717
"Life is complex. It consists of real and imaginary parts."

The bottleneck for Python 3 adoption is going to be the availability of
compatible third party libraries. I'm using numpy, scipy, matplotlib,
wxpython, pywin32 and py2exe, so I'm not even going to download python 3
until all these projects have moved to it.
Armando.
On Fri, Dec 5, 2008 at 2:37 AM, Kaushik Ghose <Kau...@hm...
> wrote:
>
> Has anyone switched to python 3?
>
> Thanks
> -Kaushik
>

On Thu, Dec 4, 2008 at 8:42 PM, David Cournapeau
<da...@ar...> wrote:
>> Quick question. Is matplotlib python 3 compatible? Has anyone switched to python
>> 3? Anecdotally, how much of a pain is it to switch over, if you use common
>> scientific libraries such as PIL and VTK?
>>
>
> matplotlib depends on numpy, and numpy on python 3 won't be finished
> anytime soon - it will be a huge task.
mpl also depends on CXX for extension code. I was heartened to see
that the python 3 migration is well underway in CXX svn. Since this
is most of our extension code, hopefully it will insulate from serious
difficulties porting the extension code. But we will have to wait for
CXX and numpy before we can do serious work.
JDH

Kaushik Ghose wrote:
> Hi Everyone,
>
> Quick question. Is matplotlib python 3 compatible? Has anyone switched to python 
> 3? Anecdotally, how much of a pain is it to switch over, if you use common 
> scientific libraries such as PIL and VTK?
> 
matplotlib depends on numpy, and numpy on python 3 won't be finished
anytime soon - it will be a huge task.
David

Hi Everyone,
Quick question. Is matplotlib python 3 compatible? Has anyone switched to python 
3? Anecdotally, how much of a pain is it to switch over, if you use common 
scientific libraries such as PIL and VTK?
Thanks
-Kaushik