[R-sig-Geo] Extracting GIS file - best approach?

Agustin Lobo alobolistas at gmail.com
Tue Oct 18 16:13:09 CEST 2011


Aurelie,

If all you need is defining the region, perhaps the easiest is
guessing the coordinates from the
grid of your jpg file.
Alternatively, you can georeference the jpg to make a companion world
file that would let you use
your map as an spatial object. You can use qgis for that.

Agus

2011/10/18 GodinA <godina at dal.ca>:
> Dear list,
>
> I am working with spatstat and am trying to define my owin: spatial region
> (observation window). I have a set of marked planar point patterns generated
> from random samplings in different strata. Unfortunately I don't have any
> GIS file with all the information for each of my strata. I only have a map
> (see below).
>
> I am new to dealing with spatial data and would like to know what would be
> the best approach to extract this information?
>
> http://r-sig-geo.2731867.n2.nabble.com/file/n6904616/NL.jpg
>
> Thank you very much in advance!
> ~Aurelie
>
>
>
>
> -----
> Aurelie Cosandey-Godin
> Ph.D. Candidate, Department of Biology
> Industrial Graduate Fellow, WWF-Canada
>
> Dalhousie University | Biology Dept. |Halifax, NS, Canada
> Email: godina at dal.ca | Web: wormlab.biology.dal.ca
> --------------------------------------------------------------------------
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