[Proj] Proj4 and Epoch

Mike Toews mwtoews at gmail.com
Mon Mar 7 21:40:47 EST 2016

Enhancement request #154 [1] is somewhat related, which is to add
support for ITRF geocent EPSG codes (e.g. [2]), but nothing about
datum support.

An alternative is NRCan's TRX tool [3], which uses reference frame and
datum inputs for 3D transformations.

[1] https://github.com/OSGeo/proj.4/issues/154
[2] http://epsg.io/4917
[3] http://webapp.geod.nrcan.gc.ca/geod/tools-outils/trx.php?locale=en

On 8 March 2016 at 13:18, barronian <ian at roqc.no> wrote:
> Is there support for Epoch in Proj4 ?
> If so could you please give me a pointer as to how to access the
> functionality?

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