[Matplotlib-users] Basemap - bluemarble doesn't map to zommed in orthographic projection
Hello, I'm new to this list (but not matplotlib and basemap), and am not sure if this is the place to post basemap questions. I apologise if I have erred. I'm reporting an issue whereby if I try to plot a zoomed in orthographic projection with a bluemarble (or etopo or shaded relief) background, the background remains "global," though it's oriented to the correct location, not mapping to the zoomed projection coordinates. I am pasting in a simple demo code that illustrates the behaviour. If you use the lcc projection, all works fine, and if you use a "non-zoomed" ortho projection, the background maps correctly. It seems that there is something preventing the background from mapping into anything but a "complete-domain" ortho projection. I'm not a great map person, and I realise I may be missing the boat on the way I'm trying to zoom my ortho projection, but I'm not sure. Am I screwing up, or is it a bug? Thank you, Don Morton #--- import mpl_toolkits.basemap as bm import matplotlib.pyplot as plt import numpy as np # Define a lambert conformal over northwest United States # With this projection (centered on Montana, and zoomed in), # the background image does map to the zoomed in projection ''' theMap = bm.Basemap(projection='lcc', lat_0=47, lat_1=30, lat_2=60, lon_0=-115, llcrnrlat=43, llcrnrlon=-128, urcrnrlat=55, urcrnrlon=-105, resolution='i', area_thresh=1000) ''' # With this projection (centered on Vienna, and zoomed in), # the background image doesn't map to the zoomed in projection theMap = bm.Basemap(projection='ortho', lat_0=48.2, lon_0=16.4, llcrnry=-100.0, llcrnrx=-100.0, urcrnry=100.0, urcrnrx=100.0, resolution='l', area_thresh=1000) theMap.drawcountries() theMap.drawcoastlines() theMap.bluemarble() #theMap.shadedrelief() #theMap.etopo() plt.show() --- Don Morton, Owner/Manager Boreal Scientific Computing LLC Fairbanks, Alaska USA http://www.borealscicomp.com/ http://www.borealscicomp.com/Miscellaneous/MortonBio/ -- Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] checking if an artist is in the list of artists for an axes
In most cases, you can also query the artist object for which axes it belongs to: ax = a.get_axes() Note that is can be None if it hasn't been attached anywhere. Cheers! Ben Root On Tue, Apr 22, 2014 at 3:35 AM, Eric Firing wrote: > On 2014/04/21 8:30 PM, Michael Mossey wrote: > > How do I check if an artist is in the list of artists attached to an > axes? > > if a in ax.get_children(): > ... > > Eric > > > > Mike > > > > > > > > > -- > > Start Your Social Network Today - Download eXo Platform > > Build your Enterprise Intranet with eXo Platform Software > > Java Based Open Source Intranet - Social, Extensible, Cloud Ready > > Get Started Now And Turn Your Intranet Into A Collaboration Platform > > http://p.sf.net/sfu/ExoPlatform > > > > > > > > ___ > > Matplotlib-users mailing list > > Matplotlib-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > > > > > -- > Start Your Social Network Today - Download eXo Platform > Build your Enterprise Intranet with eXo Platform Software > Java Based Open Source Intranet - Social, Extensible, Cloud Ready > Get Started Now And Turn Your Intranet Into A Collaboration Platform > http://p.sf.net/sfu/ExoPlatform > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Make clear figure used in the powerpoint slides?
Yes, there is a difference if you use the button versus explicitly stating
the dpi in a savefig call. When you use the button, matplotlib has to use
the default dpi since there is no other way to specify it.
Cheers!
Ben Root
On Mon, Apr 21, 2014 at 5:03 PM, Chao YUE wrote:
> Yes, in fact I set dpi as 1000, which is already very high. In fact I have
> another question, will there be any difference if I use the save button on
> the interactive plotting toolbar and use the command line
> figure.savefig('xx.png',dpi=1000)?
>
> Chao
>
>
> On Mon, Apr 21, 2014 at 10:59 PM, Jody Klymak wrote:
>
>> Did you set the dpi of the png?
>>
>> Cheers, Jody
>>
>>
>> On Apr 21, 2014, at 13:50 PM, ChaoYue wrote:
>>
>> OK, I tried but I don't really see the difference between jpg and png by
>> my eyes in the attached case, maybe for other more complicated plots there
>> will be real difference. Anyway, thanks to all for your nice discussions.
>> And, BTW, I tried >2 hours trying to find a way to convert svg to emf, but
>> now I konw :p
>>
>> Cheers,
>>
>> Chao
>>
>>
>> On Mon, Apr 21, 2014 at 9:49 PM, Benjamin Root-2 [via matplotlib] <[hidden
>> email]> wrote:
>>
>>> JPGs will *always* have "bit blur" as it is a lossy image format. PNGs
>>> would be a better bet.
>>>
>>> Ben Root
>>>
>>>
>>> On Mon, Apr 21, 2014 at 3:33 PM, ChaoYue <[hidden
>>> email]
>>> > wrote:
>>>
Hi all,
Thank you all for your kind response. I am sorry, but none of these
solutions significantly improved the visual quality on microsoft powerpiont
2007. Thought I didn't try eps. So probably l have to go with the current
quality.
here is a best case I have now:
https://www.dropbox.com/s/0uhjogalz92hssm/different_figure_example.pptx
You can still see the "a bit blur" everywhere (currently with jpg being
inserted directly). I didn't have better quality than this one by trying
the method as suggested by you. Let me know if I am raising too much high
demand for this.
Cheers,
Chao
On Mon, Apr 21, 2014 at 4:41 PM, Jonathan Slavin [via matplotlib] <[hidden
email] > wrote:
> Another alternative, if a vector graphics format doesn't work, is to
> make your png figure large. Then when you shrink it down to fit in your
> slide, it should still have good resolution.
>
> Jon
>
> On Mon, Apr 21, 2014 at 10:13 AM, <[hidden
> email]
> > wrote:
>
>> No Powerpoint version I know supports SVG (or any vector graphics
>> format useful in this case) and Matplotlib does not
>> export WMF graphics anymore. So the easiest way is to use PNGs, if
>> you can live with raster graphics.
>>
>> Alternatively, if you need vector graphics, you can export the
>> Matplotlib plot as SVG and convert it to WMF or EMF using
>> Inkscape. This can be done in the command line like this:
>>
>> "c:\Program Files\Inkscape-0.48\inkscape.exe" --without-gui
>> --export-emf="output.emf" "input.svg"
>>
>>
>> Juergen
>>
>
>
> --
>
> Jonathan D. Slavin Harvard-Smithsonian CfA
> [hidden email]
>60 Garden Street, MS 83
> phone:
> +16174967981" target="_blank">(617) 496-7981 Cambridge, MA
> 02138-1516
> fax:
> +16174967577" target="_blank">(617) 496-7577USA
>
>
>
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Re: [Matplotlib-users] checking if an artist is in the list of artists for an axes
On 2014/04/21 8:30 PM, Michael Mossey wrote: > How do I check if an artist is in the list of artists attached to an axes? if a in ax.get_children(): ... Eric > > Mike > > > > -- > Start Your Social Network Today - Download eXo Platform > Build your Enterprise Intranet with eXo Platform Software > Java Based Open Source Intranet - Social, Extensible, Cloud Ready > Get Started Now And Turn Your Intranet Into A Collaboration Platform > http://p.sf.net/sfu/ExoPlatform > > > > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
