[R-sig-Geo] Leader lines for inset map

[Bernd Vogelgesang]

Hi Vladimir,
I'm sure, R is very versatile software, but it sounds really insane to me  
to try to do sth like your examples in R (If you haven't got to do this  
hundreds of times with different maps)
Map compositions are a matter of graphics programs or even better a  
Desktop GIS, like QGIS for example.

In QGIS, this would be a matter of just adding two composer frames,  
legend(s) and some lines drawn by hand.
"Coding" a layout seems not really reasonable when you can also drag and  
drop the items in a matter of minutes.

Just my 2 cents
Bernd

Am 01.11.2014, 21:03 Uhr, schrieb Vladimir <sendmeoffer at gmail.com>:

> Hello list!
>
> I would like to add leader lines to my inset maps. These lines connect  
> the frame of the inset map with the corresponding area on the main map.  
> Good examples are here [1], [2], or here [3].
>
> What is the most convenient R approach to do so?
>
> Kind regards,
> Vladimir.
>
> ---
> [1]  
> http://gce-lter.marsci.uga.edu/public/images/gce_study_area_blowup_nov07_rev.jpg
> [2] http://pubs.usgs.gov/fs/fs08203/images/study_area.gif
> [3]  
> http://www.innovativegis.com/basis/supplements/bm_dec_02/Ironing_Colorado_files/image004.jpg
>
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Bernd Vogelgesang
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