[PROJ] Syntax to change projection from UTM to TM

[Greg Troxel]

Ulises Ibarra via PROJ <proj at lists.osgeo.org> writes:

> echo 480037.249 2143783.696 2271.294 | cct +proj=pipeline +step +inv
> +proj=utm +zone=14 +ellps=GRS80 +k=0.9996439573 +step +proj=tmerc
> +lat_0=19.388187333 +lon_0=-99.190762728 +x_0=479969.231 +y_0=2143791.499
> +ellps=GRS80 +k=1

I am far from an expert here, but "UTM zone 14" defines everything about
the projection, so I don't understand why you are needing to specify the
k.  Also sort of the ellipse, but people use UTM with both NAD83 and
WGS84, and you are using it with ITRF2008.

https://www.oc.nps.edu/oc2902w/maps/utmups.pdf

may be useful