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From: Mauro C. <mau...@gm...> - 2008-12-05 20:08:03
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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." |
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From: Jeff W. <js...@fa...> - 2008-12-05 20:32:38
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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 |
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From: Jeff W. <js...@fa...> - 2008-12-05 21:05:42
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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, > > 2008/12/5 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 |
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From: Jeff W. <js...@fa...> - 2008-12-05 22:38:04
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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
> 2008/12/5 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,
>>>
>>> 2008/12/5 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
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