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

[Martin]

Many thanks Raymond: that is helpful. Now at least I know what the 
projection is! As QGIS has so many projections it never occurred to me 
that there may be one that it didn't include. I will now see if there is 
some other way - outside QGIS perhaps? - to convert this projection into 
something more friendly (so to speak).

Martin



On 19/03/17 21:30, Raymond Nijssen wrote:
> 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
>>
>>
>>
>> _______________________________________________
>> Qgis-user mailing list
>> Qgis-user at lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user