[GRASSLIST:10672] Re: Area cartograms

[Matthew Perry]

On 3/1/06, Dylan Beaudette <dylan.beaudette at gmail.com> wrote:
> Actually,
>
> It will output an UNGENERATE format vector file too.
>
> Dylan

Ahh good to know. You mentioned old versions of GRASS could deal with
this format...Are there any open source tools than work with the
UNGENERATE format?

matt

>
> On Wednesday 01 March 2006 02:40 pm, Matthew Perry wrote:
> > Another limitation of that C algorithm for cartograms is it only
> > outputs .ps files.
> >
> > Try the link to the Java version.
> > (http://people.cas.sc.edu/hardistf/cartograms/) It inputs/outputs
> > shapefiles and has a nice GUI that autmates alot of the tediousness of
> > the C version.
> >
> > matt
> >
> >
> > There's also a link to the
> >
> > On 3/1/06, Dylan Beaudette <dylan.beaudette at gmail.com> wrote:
> > > On Wednesday 01 March 2006 11:35 am, Laurent Courty wrote:
> > > > Miha Staut wrote:
> > > > > Dear list,
> > > > >
> > > > > Sorry for a GRASS non related question. Does anybody know a software
> > > > > in which one could make cartograms where the area of the polygon
> > > > > reflects the size of the variable in question. E.g. in a map of the
> > > > > countries of the world (projection should be equivalent of course),
> > > > > the area of the country shows the size of the population of the
> > > > > country, not the actual area. I would be happy with either contiguous
> > > > > polygons with distortion of the shape or non contiguous polygons
> > > > > without shape distortion.
> > > > >
> > > > > If you fell responding to the question would burden the listers with
> > > > > non related topics, please reply me off list.
> > > > >
> > > > > Thanks,
> > > > > Miha
> > > > >
> > > > >
> > > > >
> > > > > ___________________________________________________________
> > > > > Yahoo! Photos – NEW, now offering a quality print service from just
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> > > >
> > > > Hello,
> > > >
> > > > You could take a look at this :
> > > > http://ccablog.blogspot.com/2006/02/cartograms-again.html
> > > >
> > > > Laurent
> > >
> > > Cool Link! It looks like the underlying algorithm is written in C, and
> > > open source. Compiles nicely on linux -- although it requires an ESRI
> > > ungenerate format file as input... and v.out.arc seems to be stranded in
> > > GRASS54.
> > >
> > > Dylan
> > >
> > > --
> > > Dylan Beaudette
> > > Soils and Biogeochemistry Graduate Group
> > > University of California at Davis
> > > 530.754.7341
> >
> > --
> > Matt Perry
> > perrygeo at gmail.com
> > http://www.perrygeo.net
>
> --
> Dylan Beaudette
> Soils and Biogeochemistry Graduate Group
> University of California at Davis
> 530.754.7341
>


--
Matt Perry
perrygeo at gmail.com
http://www.perrygeo.net