matplotlib-users Mailing List for matplotlib

Hi Sterling and Alex,

thanks to both of you. I followed what proposed by you Alex and it's
working perfectly.
my version of matplotlib is 1.2.0 and I don't want to upgrade before I
submit the MS and
so I pick up the code of "get_segments" method from the github and put it
in my 1.2.0
matplotlib and it works.

I wish everybody a good new year.

Chao



On Tue, Dec 31, 2013 at 3:09 AM, Alex Goodman <ale...@co...>wrote:

> Hi Chao,
>
> Actually it is possible to remove the borders for Antarctica with basemap.
> The default method for drawing the continents in basemap, drawcontinents(),
> returns an instance of matplotlib.collections.LineCollection. What you will
> want to do is manually remove the line segments within the collection that
> correspond to Antarctica. For example,
>
> # m is a Basemap instance
> lcol = m.drawcoastlines()
> segs = lcol.get_segments()
>
> for i, seg in enumerate(segs):
>      # The segments are lists of ordered pairs in spherical (lon, lat),
> coordinates.
>      # We can filter out which ones correspond to Antarctica based on
> latitude using numpy.any()
>      if np.any(seg[:, 1] < -60):
>           segs.pop(i)
>
> lcol.set_segments(segs)
>
> This should do the trick unless I made a silly typo somewhere.
>
> Thanks,
> Alex
>
>
> On Mon, Dec 30, 2013 at 5:05 PM, Sterling Smith <sm...@fu...>wrote:
>
>> Chao,
>>
>> I know nothing of the Basemap toolkit so I can't comment on the removal
>> of continents, but presumably the text command you are using takes some
>> keywords to set the properties of the bounding box.  Try setting the
>> background of the bounding box to white so that your words show up cleanly.
>>  Feel free to let me know that I'm barking up the wrong tree.
>>
>> -Sterling
>>
>> On Dec 30, 2013, at 3:46PM, Chao YUE wrote:
>>
>> > Dear all,
>> >
>> > Happy new year!
>> >
>> > I am using Basemap toolkit to make some maps, I would like to
>> > write something at the bottom of the map, whose position is now
>> > taken by the contourf of Antarctica. Is there a way I can keep contours
>> > of other continents but suppressing the one for antarctica? I attached
>> > showing why I would like to have this.
>> >
>> > thanks for any help,
>> >
>> > 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
>> >
>> ************************************************************************************
>> >
>> <figure_4_new.jpg>------------------------------------------------------------------------------
>> > Rapidly troubleshoot problems before they affect your business. Most IT
>> > organizations don't have a clear picture of how application performance
>> > affects their revenue. With AppDynamics, you get 100% visibility into
>> your
>> > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of
>> AppDynamics Pro!
>> >
>> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk_______________________________________________
>> > Matplotlib-users mailing list
>> > Mat...@li...
>> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Rapidly troubleshoot problems before they affect your business. Most IT
>> organizations don't have a clear picture of how application performance
>> affects their revenue. With AppDynamics, you get 100% visibility into your
>> Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics
>> Pro!
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>
>
>
> --
> Alex Goodman
> Graduate Research Assistant
> Department of Atmospheric Science
> Colorado State University
>



-- 
***********************************************************************************
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 Chao,

Actually it is possible to remove the borders for Antarctica with basemap.
The default method for drawing the continents in basemap, drawcontinents(),
returns an instance of matplotlib.collections.LineCollection. What you will
want to do is manually remove the line segments within the collection that
correspond to Antarctica. For example,

# m is a Basemap instance
lcol = m.drawcoastlines()
segs = lcol.get_segments()

for i, seg in enumerate(segs):
     # The segments are lists of ordered pairs in spherical (lon, lat),
coordinates.
     # We can filter out which ones correspond to Antarctica based on
latitude using numpy.any()
     if np.any(seg[:, 1] < -60):
          segs.pop(i)

lcol.set_segments(segs)

This should do the trick unless I made a silly typo somewhere.

Thanks,
Alex


On Mon, Dec 30, 2013 at 5:05 PM, Sterling Smith <sm...@fu...>wrote:

> Chao,
>
> I know nothing of the Basemap toolkit so I can't comment on the removal of
> continents, but presumably the text command you are using takes some
> keywords to set the properties of the bounding box.  Try setting the
> background of the bounding box to white so that your words show up cleanly.
>  Feel free to let me know that I'm barking up the wrong tree.
>
> -Sterling
>
> On Dec 30, 2013, at 3:46PM, Chao YUE wrote:
>
> > Dear all,
> >
> > Happy new year!
> >
> > I am using Basemap toolkit to make some maps, I would like to
> > write something at the bottom of the map, whose position is now
> > taken by the contourf of Antarctica. Is there a way I can keep contours
> > of other continents but suppressing the one for antarctica? I attached
> > showing why I would like to have this.
> >
> > thanks for any help,
> >
> > 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
> >
> ************************************************************************************
> >
> <figure_4_new.jpg>------------------------------------------------------------------------------
> > Rapidly troubleshoot problems before they affect your business. Most IT
> > organizations don't have a clear picture of how application performance
> > affects their revenue. With AppDynamics, you get 100% visibility into
> your
> > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of
> AppDynamics Pro!
> >
> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk_______________________________________________
> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
>
> ------------------------------------------------------------------------------
> Rapidly troubleshoot problems before they affect your business. Most IT
> organizations don't have a clear picture of how application performance
> affects their revenue. With AppDynamics, you get 100% visibility into your
> Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics
> Pro!
> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>



-- 
Alex Goodman
Graduate Research Assistant
Department of Atmospheric Science
Colorado State University

A quick apology for a typo in my previous message, the method in question
is drawcoastlines(), not drawcontinents(). The code snippet should still be
correct though!


On Mon, Dec 30, 2013 at 7:09 PM, Alex Goodman <ale...@co...>wrote:

> Hi Chao,
>
> Actually it is possible to remove the borders for Antarctica with basemap.
> The default method for drawing the continents in basemap, drawcontinents(),
> returns an instance of matplotlib.collections.LineCollection. What you will
> want to do is manually remove the line segments within the collection that
> correspond to Antarctica. For example,
>
> # m is a Basemap instance
> lcol = m.drawcoastlines()
> segs = lcol.get_segments()
>
> for i, seg in enumerate(segs):
>      # The segments are lists of ordered pairs in spherical (lon, lat),
> coordinates.
>      # We can filter out which ones correspond to Antarctica based on
> latitude using numpy.any()
>      if np.any(seg[:, 1] < -60):
>           segs.pop(i)
>
> lcol.set_segments(segs)
>
> This should do the trick unless I made a silly typo somewhere.
>
> Thanks,
> Alex
>
>
> On Mon, Dec 30, 2013 at 5:05 PM, Sterling Smith <sm...@fu...>wrote:
>
>> Chao,
>>
>> I know nothing of the Basemap toolkit so I can't comment on the removal
>> of continents, but presumably the text command you are using takes some
>> keywords to set the properties of the bounding box.  Try setting the
>> background of the bounding box to white so that your words show up cleanly.
>>  Feel free to let me know that I'm barking up the wrong tree.
>>
>> -Sterling
>>
>> On Dec 30, 2013, at 3:46PM, Chao YUE wrote:
>>
>> > Dear all,
>> >
>> > Happy new year!
>> >
>> > I am using Basemap toolkit to make some maps, I would like to
>> > write something at the bottom of the map, whose position is now
>> > taken by the contourf of Antarctica. Is there a way I can keep contours
>> > of other continents but suppressing the one for antarctica? I attached
>> > showing why I would like to have this.
>> >
>> > thanks for any help,
>> >
>> > 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
>> >
>> ************************************************************************************
>> >
>> <figure_4_new.jpg>------------------------------------------------------------------------------
>> > Rapidly troubleshoot problems before they affect your business. Most IT
>> > organizations don't have a clear picture of how application performance
>> > affects their revenue. With AppDynamics, you get 100% visibility into
>> your
>> > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of
>> AppDynamics Pro!
>> >
>> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk_______________________________________________
>> > Matplotlib-users mailing list
>> > Mat...@li...
>> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Rapidly troubleshoot problems before they affect your business. Most IT
>> organizations don't have a clear picture of how application performance
>> affects their revenue. With AppDynamics, you get 100% visibility into your
>> Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics
>> Pro!
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>
>
>
> --
> Alex Goodman
> Graduate Research Assistant
> Department of Atmospheric Science
> Colorado State University
>



-- 
Alex Goodman
Graduate Research Assistant
Department of Atmospheric Science
Colorado State University

Chao,

I know nothing of the Basemap toolkit so I can't comment on the removal of continents, but presumably the text command you are using takes some keywords to set the properties of the bounding box.  Try setting the background of the bounding box to white so that your words show up cleanly.  Feel free to let me know that I'm barking up the wrong tree.

-Sterling

On Dec 30, 2013, at 3:46PM, Chao YUE wrote:

> Dear all,
> 
> Happy new year!
> 
> I am using Basemap toolkit to make some maps, I would like to 
> write something at the bottom of the map, whose position is now
> taken by the contourf of Antarctica. Is there a way I can keep contours
> of other continents but suppressing the one for antarctica? I attached 
> showing why I would like to have this. 
> 
> thanks for any help,
> 
> 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
> ************************************************************************************
> <figure_4_new.jpg>------------------------------------------------------------------------------
> Rapidly troubleshoot problems before they affect your business. Most IT 
> organizations don't have a clear picture of how application performance 
> affects their revenue. With AppDynamics, you get 100% visibility into your 
> Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk_______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users