Re: [Geotools-gt2-users] google projection user guide page updated

[Jody G. <jod...@gm...>]

Adrian Custer wrote:
> Hey Jody,
>
> Are you sure that is the right WKT? I thought the whole point of the
> google projection was that it was working on a sphere so would have no
> inverse flattening. The part of the WKT I find surprising is:
>
> SPHEROID["WGS 84", 6378137.0, 298.257223563, AUTHORITY["EPSG","7030"]],
>
> with its 298.crumbs parameter. I would have thought this would be
> explicitly *not* WGS84 but some google sphere. Indeed, your WKT is
> identical to EPSG:3395 which is world mercator projection of WGS84.
>   
I agree that looks wrong; I will check with the developer again tomorrow 
(sigh).
> Also, as I understood things, Martin has not yet upgraded to the newest
> EPSG database to the version with the formal google code in it. At
> least, that's what he said yesterday. I'll try to catch him again after
> lunch to confirm. So, like Andrea, I wonder if you are not using your
> locally souped up JARs rather than what is distributed.
>   
My understanding is the WKT provided on that page will work; while there 
may be more mistakes on that page the useful part was cleaning out the 
instructions to download the google projection from the geoserver 
codebase and compile it locally (which is what the previous instructions 
were all about). My understanding is that the WKT as provided can no be 
used in geotools and produce the expected result.
> Note I recently added a section "how to add a CRS" at the bottom of the
> Referencing FAQ:
>   http://docs.codehaus.org/display/GEOTDOC/11+Referencing+FAQ
> for those who are interested.
>   
Very nice; I update the page to use the {toc} macro so you do not have 
to keep trying to list the FAQ contents at the top of the page; it will 
pick up the headings for you and sort itself out.

Jody