[PROJ] Vertical Transformations?

[Mike Taves]

On Thu, 21 Feb 2019 at 05:15, Even Rouault <even.rouault at spatialys.com> wrote:
> > I have a dream that one day we will replace the datumgrid packages with a
> > download service
> > where as many grids as possible can be served from. PROJ
> > should have the ability to either download grids when the need arises (or
> > at least make it easy for users to do so themselves). At this point it is
> > just a vision and I am not particularly keen on taking on this task myself
> > but I would be very happy to see this happen within the next couple of
> > years.
>
> That would add a libcurl dependency. And/or add a callback mechanism to do the
> download on behalf of PROJ. But as mentionned above, applications built on top
> of PROJ have now what is needed to implement that.

I think this the idea behind
https://github.com/NaturalGIS/naturalgis_ntv2_transformations
which is a QGIS plugin that retrieves various gridshift files collected at
https://github.com/NaturalGIS/naturalgis_ntv2_transformations_grids_and_sample_data

On Thu, 21 Feb 2019 at 08:56, Sebastiaan Couwenberg <sebastic at xs4all.nl> wrote:
> This is why I will not be packaging the regional proj-datumgrid packages
> for Debian. Users will need to download the tarballs and unpack their
> content into /usr/share/proj themselves.

More preferably in /usr/local/share/proj