[Proj] WGS84 to NAD27 Coordinate conversion in Android

Robb Main rmain.mws at gmail.com
Wed Nov 14 09:07:51 EST 2018

Thanks, Martin.
I had not come across that - I will definitely check it out.

I found this Android app (
). I'm not sure what codebase he used, but his app certainly supports a
broad list of datums). The installed size is only 7.8MB, so clearly it is a
limited implementation.

Best Regards,

On Wed, Nov 14, 2018 at 8:59 AM Martin Desruisseaux <
martin.desruisseaux at geomatys.com> wrote:

> Hello Rob
> Le 14/11/2018 à 14:51, Robb Main a écrit :
> I was hoping to find an operational (or easily ported) Android solution,
> and less of a swiss-army knife codebase. You covered these issues in your
> response, and SIS / GDAL may yet prove usefull in the eventual solution.
> I'm still hopeful that there might be a simpler solution, not yet suggested
> (and that I've not yet discovered).
> No problem. I'm not sure if it has been pointed out in previous replies,
> but another good source is:
> https://geographiclib.sourceforge.io/
> It provides both C++ and Java implementations of the same algorithm, and
> part of those C++ algorithms are actually integrated into Proj.4.
>     Martin
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