topic Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)? in ArcGIS Pro Questions

Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

RobHodder — Thu, 05 Apr 2018 13:20:55 GMT

I have a las dataset the uses the NAD83CSRS UTM20 datum; elevations are ellipsoidal. I am trying to transform the data to the CGVD2013 vertical datum, but have been unsuccessful thus far. I have tried setting the output coordinate system to the desired datum in the Create LAS Dataset tool, but the output elevations are still ellipsoidal. Is there a known reason why this isn't working? Is there an alternative way to apply a vertical transformation to a las dataset? Thanks!

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

MelitaKennedy — Fri, 06 Apr 2018 23:13:20 GMT

We don't have any vertical transformations for Canada yet. I hoped to get CGVD2013 in for 10.6.1 / 2.2 but some other projects came up and we haven't been able to get to it.

Melita

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

RobHodder — Fri, 06 Apr 2018 23:53:15 GMT

Ok. Thanks very much Melita. Looking forward to being able to perform vertical transformations on LiDAR data!

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

BruceHarold — Mon, 09 Apr 2018 15:09:26 GMT

If Natural Resources Canada publish a geoid model in a format that Data Interoperability can consume (like GSB) that extension can be used to directly transform LAS data elevations.

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

ShaneRuljancich — Tue, 17 Jul 2018 20:30:08 GMT

I was wondering if there is any ETA for when CGVD2013 might be added to ArcMap? Thanks.

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

MelitaKennedy — Wed, 18 Jul 2018 00:58:48 GMT

Hi Shane,

It's currently on our list of tasks for ArcGIS 10.7 / Pro 2.3.

Melita

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

KentBuchanan — Thu, 31 Jan 2019 19:53:00 GMT

Hi Melita, did this come to pass?

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

MelitaKennedy — Fri, 08 Feb 2019 00:16:12 GMT

I am sorry, but it did not. Last year had a few, "Wow, I did not see THAT coming moments," which derailed some of my plans. It's on the list for 2.4/10.7.1. Keep your fingers crossed!

Melita

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

MattWilkie1 — Thu, 14 Nov 2019 23:22:34 GMT

Hey everybody, vote this up at Need for ArcGIS Pro tool to convert vertical Datum (CGVD1928 ↔ CGVD2013)

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

ANILREDDY1 — Tue, 28 Jun 2022 05:33:38 GMT

hi do you found CGVD2013 prj,we have a task client need output with CGVD2013 can you provide .

prj file.

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

BojanŠavrič — Fri, 15 Jul 2022 20:14:47 GMT

Please note that we added support for vertical transformations between CGVD28 and CGVD2013 in ArcGIS Pro 2.9. You will need to install supplementary coordinate system files, which include CGG2013 and CGG2013a geoid models and other conversion grid files. This allows you to convert heights between NAD83CSRS and CGVD2013.

I hope this helps,
Bojan

Re: Is it possible to apply a vertical datum transformation to a las dataset (*.lasd)?

EmmaSchultz1 — Tue, 24 Jan 2023 20:05:46 GMT

Thank you for this. I was very confused that I could not find the vertical datum transformation on ESRI's geographic transformation list. CGVD2013 is now Canada's vertical datum standard. Will be nice when that is realized in ArcGIS Pro!