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kiln / carbonmap.org

http://www.carbonmap.org
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Change the origin of the projection? #41

Open robinhouston opened 12 years ago

robinhouston commented 12 years ago

According to ThermoStat in the comments on the Guardian: “Apparently, the IPCC standard is to do global plots with the left-hand side at 190E, (rather than 180E as above), so that you don't have the far east of the Russian Federation wrapping around to the left-hand side of the map (which looks a bit daft).”

robinhouston commented 12 years ago

Note that this is a feature of the Robinson projection, which we’re using. But it would be interesting to try just shifting it round by ten degrees, and see if that looks better. Presumably you would get a bit of Alaska wrapping round to the right instead, which wouldn’t necessarily be an improvement.

robinhouston commented 12 years ago

We could define a new projection based on http://spatialreference.org/ref/esri/54030/ but with a non-zero value for lon_0 (in PROJ.4 syntax) or Central_Meridian (in WKT syntax).

I can’t find any evidence on Google of anyone having tried that before, but I know of no reason it ought not to work.