[Qgis-user] Distorted Maps

[ahmed at elegantdesigns.ca]

Thanks a lot.

The suggestions worked flawlessly; however, on some occasions the cartogram
plugin gave the following error:

"...path .../doCartogram.py", line 246, in getInfo
    dSizeError = max(dPolygonArea, dDesired) / min(dPolygonArea, dDesired)
#calculate size error...
ZeroDivisionError: float division

cheers,
Ahmed


On Tue, 2 Feb 2010 13:36:57 +0000, Carson Farmer <carson.farmer at gmail.com>
wrote:
> Hi dassouki,
> 
>> Can the following map types be done with QGIS or any other software:
>>
>> http://www.worldmapper.org/countrycartograms/cartograms/world.jpg :
>> Distorted map based on field values
> The above is actually an area-cartogram, and yes using the cartogram
> creator plugin (should be working, if not, let me know).
> 
>>
http://kelsocartography.com/blog/wp-content/uploads/2008/03/carbonatlas.pdf
>> : Cartogram
> Possibly using the diagram overlay (and some post-processing in
> inkscape or other vector graphics package)?
> 
>>
http://www.girardin.org/fabien/blog/wp-content/_images_maps_peopleonthemove_groot.jpg
>> : Separated polygons
> No, but have a look at R for this type of thing.
> It would probably be relatively simple, you should just have to figure
> out how to scale the individual features (lot's of cartogram
> algorithms out there for this type of application).
> 
> Carson