Fairly accurate and current 3D mapping has been available for many areas free from usgs.gov for several years as a result of LIDAR. It is used by cellular/radio companies for shadow/fresnel predictions for RF. In 2018, 

I bought a modeling package for a city to determine what views permitting taller buildings would affect, and potential views from elevations on a proposed structure. 

You can download LIDAR data and a some tools for free:
https://www.usgs.gov/faqs/what-lidar-data-and-where-can-i-download-it?qt-news_science_products=0#qt-news_science_products

But the article references LIVE 3D data. I'm sure that would be "crowdsourced" from live device data. With enough bandwidth - 5G+ - image points, position and attitude data can update the world, a few billion points of data at a time...

Mickey Baker, N4MB
Palm Beach Gardens, FL
“The servant-leader is servant first… It begins with the natural feeling that one wants to serve, to serve first. Then conscious choice brings one to aspire to lead." Robert K. Greenleaf


On Sun, May 23, 2021 at 9:02 PM rjairam@gmail.com <rjairam@gmail.com> wrote:
3D mapping is here and improving. Some of the drone jobs I've been
doing as a remote pilot in command are mapping using DJI Terra using
their RTK system and LiDAR:

https://www.dji.com/dji-terra

Mostly for inspections but also inventory of assets.

Skydio now has 3D imaging using their drones, as well:

https://www.skydio.com/3d-scan

Skydio is a company that was founded by ex Tesla engineers, and their
hallmark is having amazing autonomous capabilities.

73
Ria, N2RJ

On Sun, May 23, 2021 at 5:42 PM John Robert Stratton <N5AUS@n5aus.com> wrote:
>
>
>     The predictions found in the enclosed link, if true, mirror Dave's response to Hal's frightened question: What is going to happen? — Something wonderful.
>
>     Many companies are working on versions of what is discussed; even if half of those companies efforts come to fruition, the future will effect a transitional jump.
>
>     If that occurs, whither goes Amateur Radio? At a minimum, every radio manufacturer will be behind the curve.
>
>     See:
>
>     https://scobleizer.blog/2021/05/15/the-new-3d-apple-arriving-at-wwdc/
>
>
> _______________________________________
>
>
>
> John Robert Stratton
>
> N5AUS
>
> Director
>
> West Gulf Division
>
> Office:             512-445-6262
>
> Cell:                512-426-2028
>
> P.O. Box 2232
>
> Austin, Texas 78768-2232
>
>
>
> _______________________________________
>
> _______________________________________________
> arrl-odv mailing list
> arrl-odv@reflector.arrl.org
> https://reflector.arrl.org/mailman/listinfo/arrl-odv
_______________________________________________
arrl-odv mailing list
arrl-odv@reflector.arrl.org
https://reflector.arrl.org/mailman/listinfo/arrl-odv