[Ottawa_users] Volunteer project for Fair Vote Canada
gbrauen at connect.carleton.ca
Fri Apr 29 15:29:19 EDT 2011
I was actually playing around with a similar but different idea, using the poll results from 2008 for Ottawa West-Nepean. Different because I twisted the equations to show the cushion enjoyed by the leading candidate at each poll and coloured the layer accordingly, differentiating between Cons vs non-Cons in computing the cushion.
I produced a KML, so it can be overlaid on Google Earth/Maps to get the street references for orientation purposes.
This was a rough demo so the pop-ups defined are just a quick attribute dump.
1) Convert the poll boundaries available from Elections Canada to the coordinate system used in Google Maps/Earth (EPSG: 4326). I used ogr2ogr from GDAL to do this.
2) Produce a shapefile joining the poll boundaries to 2008 election results. This was done in QGIS.
3) Play with colouring and export as KML. For this I used Shape2Earth (http://shape2earth.com/default.aspx) which is a plugin for the MapWindow GIS (http://www.mapwindow.org/)
The export tools are free but a bit rough and it takes some tinkering. A copy of the generated KML is here:
Hope this is useful...
Glenn Brauen, Ph.D. Candidate
Geomatics and Cartographic Research Centre
Department of Geography
email: glenn at gbrauen.ca
home page: https://gcrc.carleton.ca/confluence/x/EoAH
home: (613) 798-7864
On 2011.04.29, at 1:46 PM, Amos Hayes wrote:
> Might want to have a look at this. It was developed by a PhD candidate at our lab. Might be re-usable for what you are trying to accomplish. It explores the use of sound to "show" what isn't shown on your typical election map.
> Amos Hayes
> Geomatics and Cartographic Research Centre
> Carleton University, Canada
> ahayes at gcrc.carleton.ca
> On 2011-04-29, at 12:09 PM, Julien Lamarche wrote:
>> Julien Lamarche from Fair Vote Canada. I've hung around a bit as
>> OSGEO meetings and some of you know me. I must apologize for my
>> prolonged absence.
>> If any of you will be compiling election results, I'd love to have a
>> map on "wasted" votes by poll (votes going to a non-winning candidate)
>> in the Ottawa - Gatineau area. Street lines and rivers would be nice
>> just to situate the polls.
>> Fair Vote Canada's mission is to reform the electoral system to a more
>> proportional system so that more votes count and the legislature
>> better represents canadians in their ethnic and gender diversity. In
>> the last federal election, 50.7% of all votes did not go to a winning
>> candidate. More info at fairvote.ca . I am Vice-president of the
>> Ottawa chapter of FVC.
>> Since its a volunteer project for internal use mostly, you would be
>> free to follow as little or as many requirements as you'd like.
>> Number of ridings (1 to 10), symbology, one map or multiple maps per
>> party, etc.. E-mail me for questions, and I'd be happy to discuss it
>> over phone as well.
>> Sign the ***Declaration of Voters Rights***: http://is.gd/i34Fb
>> Signer la ***Déclaration des droits des électeurs***: http://is.gd/i34Fb
>> Ottawa_users mailing list
>> Ottawa_users at lists.osgeo.org
> Ottawa_users mailing list
> Ottawa_users at lists.osgeo.org
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