[Qgis-user] How to reproject maps of world grasslands

[Raymond Nijssen]

Hi Martin,

Sorry, I cannot really help you.

Your data seems to be in the (quite odd for distributing data) projection:
https://en.wikipedia.org/wiki/Goode_homolosine_projection

And it is not recognized by qgis.

Proj4 seems to know it though:
http://proj4.org/projections/igh.html

And I found this:
http://gis.stackexchange.com/questions/17263/is-it-possible-to-use-the-goode-homolosine-projection-in-qgis

Hope it helps (a bit),
Raymond


On 19-03-17 20:49, Martin wrote:
> Hello folks!
>
> I would like to plot a simple map of the WWF World Grassland Types (the
> shape file is available at
> https://www.worldwildlife.org/publications/world-grassland-types
>
> It is in an unusual projection. The .prj file is:
>
> PROJCS["World_Goode_Homolosine_Land",GEOGCS["GCS_WGS_1984",DATUM
> ["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM
> "Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION
> ["Goode_Homolosine"],PARAMETER["False_Easting",0.0],PARAMETER
> ["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER
> ["Option",1.0],UNIT["Meter",1.0]]
>
> The map does not include the outline countries of the world and
> therefore I would like to add these (perhaps the NaturalEarth 110
> million scale country shape file, which is in WGS84).
>
> However, I cannot figure out how to align the grassland layer and the
> 110 million NaturalEarth layer. As I understand it, I should use Save As
> to reproject the grassland shape file with a new CRS (perhaps Mercator).
> With Enable on the fly CRS transformation enabled I should then be able
> to put the two shape files together - but I am darned if I can obtain
> anything sensible: I cannot get the two layers to align in any way.
>
> With grateful thanks for  any help, Martin
>
>
>
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