Re: R-sig-Geo Digest, Vol 175, Issue 8

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Re: R-sig-Geo Digest, Vol 175, Issue 8

Richard Careaga
Mac High Sierra users will need to debug installation of PROJ.4 5.0.0 from
source first (work in progress <g>). Please tell me that latest rgdal will
work with proj.4 4.9.3, I hope?



On March 18, 2018 at 4:01:44 AM, [hidden email] (
[hidden email]) wrote:

PROJ.4 5.0.0

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Re: R-sig-Geo Digest, Vol 175, Issue 8

Roger Bivand
Administrator
On Sun, 18 Mar 2018, Richard Careaga wrote:

> Mac High Sierra users will need to debug installation of PROJ.4 5.0.0 from
> source first (work in progress <g>). Please tell me that latest rgdal will
> work with proj.4 4.9.3, I hope?
>

Yes, backward compatibility continues to be important, and Windows and OSX
CRAN binaries are < 5.0.0. However, in a year or so, we may be ready to
switch, and then no further maintenance will be done for the < 5.0.*
code. It will entail moving away from rgdal::spTransform() and
rgdal::project() as they are now structured, and rather using a fully
qualified pipeline inside PROJ, without first transforming to WGS84 then
on to the target representation.

Roger

>
>
> On March 18, 2018 at 4:01:44 AM, [hidden email] (
> [hidden email]) wrote:
>
> PROJ.4 5.0.0
>
> [[alternative HTML version deleted]]
>
> _______________________________________________
> R-sig-Geo mailing list
> [hidden email]
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>

--
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; e-mail: [hidden email]
http://orcid.org/0000-0003-2392-6140
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