[gdal-dev] gdalwarp EPSG:32662 problem

[Andre Joost]

Am 09.02.2014 00:42, schrieb Even Rouault:

>
> But Antti guess seems right. Instead of +ellps=WGS84 (or +datum=WGS84), if you
> play with the a (semi-major axis) and b (semi-minor axis) parameters, you can
> see that only +a has an influence, so latest proj version seems to use a
> spherical version of eqc.

If you look at
<http://trac.osgeo.org/proj/browser/trunk/proj/src/PJ_eqc.c>

and the chapter 12 of Snyders manual, you will only find formulas for 
the sphere. So I guess there is no other way to calculate eqc.

Maybe older versions calculated another radius for the sphere when an 
ellipsoid was given.

Greetings,
André Joost