Add OSTN15

[dragons8mycat]

Add OSTN15 ntv2 from Ordnance survey which supersedes OSTN02

[micahcochran]

Grids are maintained as a separate download from the repository. "Great Britain" is listed as a "non-free" grid that can be freely downloaded.

Perhaps it could be discussed if the BSD license is considered free enough to be distributed with the proj-datumgrid. That is if you want to begin that conversation.

At the very least, the website link should be updated. Is there a link to this file on the Ordnance Survey's website?

[dragons8mycat]

Hi Micah,

Thanks, I have the proj.4 fixed for OSTN15 but wasn't sure how to implement it, it's normally quite easy.

I have a fixed srs.db (let me know if you want it) but can't see where to post it, and the OSTN15_ntv2 gsb file is provided here: https://www.ordnancesurvey.co.uk/docs/gps/OSTN15_NTv2.zip

My apologies for any problems, I'm not a developer but I DO do a lot of work with coordinate systems and implemented OSTN02 for QGIS.

Any help you can provide is greatly received.

Regards

Nick D

---

From: Micah Cochran notifications@github.com
Sent: 23 September 2016 16:00
To: OSGeo/proj.4
Cc: Nicholas Duggan; Author
Subject: Re: [OSGeo/proj.4] Add OSTN15 (#417)

Grids are maintained http://proj4.org/grids.html as a separate download from the repository. "Great Britain" is listed as a "non-free" grid that can be freely downloaded.

Perhaps it could be discussed if the BSD license is considered free enough to be distributed with the proj-datumgrid. That is if you want to begin that conversation.

At the very least, the website linkhttps://github.com/OSGeo/proj.4/blob/master/docs/source/grids.rst should be updated. Is there a link to this file on the Ordnance Survey's website?

You are receiving this because you authored the thread.
Reply to this email directly, view it on GitHubhttps://github.com//pull/417#issuecomment-249232121, or mute the threadhttps://github.com/notifications/unsubscribe-auth/AGSfQVYNt52b51hsStkjLpjY8Imru15fks5qs_eIgaJpZM4KFG8m.

[kbevers]

It is not clear to me if it is allowed to redistribute the grids, so instead I have added a link to the grid files on the webpage. See 37d8b7a and http://proj4.org/grids.html#great-britain