OSGB OSTN15 supported?

veddycent

Hi all,

I'm currently using v20.1 and wondering whether GM is using OSTN02 or OSTN15 for OSGB36 transforms?

I came across the same question on here from 2018 but doesnt have a response so I'm asking again.

Any help would be much appreciated.
Regards
V

veddycent

To add to the above. I imported a KMZ which has been exported from Arc using NTv2 OSTN02 and loaded into GM with the original SHP and a KMZ exported from GM.

The SHP and KMZ from GM matched perfectly but the KMZ from ArcGis did not. I assume its because Arc is using a newer projection than GM.

Is there any way to add the newer projection to GM?

Any help would be much appreciated.
Regards
V

VincentR

I do support the request of @veddycent to embed the NTv2 OSTN15 transformation in GM (this is widely used nowadays).

OSTN15 transformation (OSGB36 to ETRS89 NTv2 version) has EPSG code 7709, Ordance Survey has published a toolpack for developers on their site:
https://www.ordnancesurvey.co.uk/business-government/tools-support/os-net/for-developers)

bmg_bob

Hello,

We have an open feature request (GM-6663) to add support for the OSTN15 transformation. I have added your information to the feature request and bumped up the number of users requesting this. Thank you.

Cheers,
Bob