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This plugin used to be downloadable from Carson Farmer's plugin repository page. However, the repository is broken.

An old version of the plugin source code is still available at https://code.google.com/p/ftools-qgis/ but using QGIS 1.8 the plugin can not be loaded ("corrupted").

Any help will be greatly appreciated...

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The plugin need to be updated for QGIS 2.0 version, after that, it will be be downloadable again. You should contact the plugin developer. –  Alexandre Neto Sep 24 '13 at 13:36
    
ftools have already been ported, but this question may be about some old version. What's this cartogram functionality you are after @user16542? –  lynxlynxlynx Sep 24 '13 at 20:54
    
I'm looking for the cartogram map functionality, that is, changing the area of a spatial object (country) as a function of an attribute's value –  user16542 Sep 25 '13 at 13:04
    
@AlexandreNeto: ok, thanks a lot. –  user16542 Sep 25 '13 at 13:29

2 Answers 2

up vote 7 down vote accepted

The latest version of the Cartogram plugin, which works in QGIS 2.2, is here: https://github.com/CristianCantoro/cartogram-plugin , pending a pull request.

To prove it works in 2.2 I created a bendy map of London with it:

carto

To install, unzip/clone the repository into the qgis2/python/plugins folder. E.g., this is how I did it on my Linux system:

mv repos/cartogram-plugin-master ~/.qgis2/python/plugins/

You should then find the icon in QGIS's top bar next time you load it.

cartogram

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FYI, when I try to load this plugin in QGIS 2.4 Chugiak, it says "This plugin is broken: invalid syntax". This happens in both the CristianCantoro fork linked above, and in the cfarmer version that it forked from (which appears to be more up to date). –  LarsH Sep 25 at 21:10
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See this issue for status of the aforementioned brokenness: github.com/cfarmer/cartogram/issues/9 The author said he doesn't have time to fix it. –  LarsH Sep 26 at 2:18
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There is a fix for this now. It is described here: github.com/carsonfarmer/cartogram/pull/11/files Just remove the lines 58,59 and 60 in the doCartogram.py file before using it. –  mace Nov 29 at 11:39

Carson Farmer's repository may be out of commission for the time being, however there are a number of other options for creating cartograms like the one you described.

Cart, by Gastner and Newman using their diffusion-based method http://www-personal.umich.edu/~mejn/cart/

Cartograms, by Widdle (for Windows) http://www.griddle-gidata-analysis.com/page2.htm

ScapeToad, by Choros Laboratory using the diffusion-based method: http://scapetoad.choros.ch/index.php

Provotis, by Stanford Visualization Group includes tool for Dorling Cartograms http://mbostock.github.io/protovis/

IndieMapper, by Axis Maps produces noncontiguous cartograms http://indiemapper.com/app/

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