[gdal-dev] [PATCH v2] Support Mercator_2SP in GeoTIFF

[Even Rouault]

Le mercredi 20 novembre 2013 03:29:25, Trent Piepho a écrit :
> Antii,
> 
> Thank you for the testing.  It looks like Arc/GIS works while FME and
> Intergraph don't.

Some of those proprietary software use GDAL, but possibly not for GeoTIFF 
support, or if they do, perhaps with their own patches.

> 
> That file had both StdParallel1 and ScaleAtNatOrigin defined.
> 
> I've uploaded two new files.  This one has only StdParallel1 defined with
> no ScaleAtNatOrigin.
> https://drive.google.com/file/d/0BybuTedE9CLxRnNlNUl2Zm5JRzg/edit?usp=shari
> ng
> 
> This file has the lat_ts stored in NatOriginLat and no ScaleAtNatOrigin
> defined.
> https://drive.google.com/file/d/0BybuTedE9CLxMzltYlBFWU51RzA/edit?usp=shari
> ng
> 
> I think the latter might have better compatibility.  Yet it seems to
> clearly be the incorrect way to do it.

If the way of encoding/decoding is changed, it would be best to do it the 
"right" way and eventually other vendors will catch up with this 
interpretation.

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