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March 29, 2024, 05:52:51 AM

Terrain Height Data?

Started by Myst1cPrun3, March 10, 2019, 04:23:42 PM

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Myst1cPrun3

I've been debating making an attempt at modding a track, and was wondering where I'd find height data from? Is it something I'd need to pay for or is there a decent free site/location out there?
Any help on how to get started would be great.
Thanks.   :)

Hawk

March 10, 2019, 11:09:03 PM #1 Last Edit: March 10, 2019, 11:20:14 PM by Hawk
Hi Myst1cPrun3.... These should get you going mate.  ;)

https://www.usgs.gov/faqs/where-can-i-get-elevation-data

https://opendem.info/link_dem.html

https://www.ordnancesurvey.co.uk/business-and-government/products/terrain-50.html

https://grindgis.com/data/free-world-dem-data

https://openmaptiles.com/dem/

https://catalog.data.gov/dataset/usgs-national-elevation-dataset-ned-1-meter-downloadable-data-collection-from-the-national-map-

https://gisgeography.com/free-global-dem-data-sources/


You can also use Google Earth pro to download height data, but Google offset their data by 2 arc sec(to discourage piracy of their data), so their data is not particularly accurate for representing a real-life topographical 3D model.


Myst1cPrun3

Sweeeeeet. Will look into these. Is there a lot of places mapped, as I did find a few sites but they seemed to be NA/Mainland European Mountains etc?

Hawk

Quote from: Myst1cPrun3 on March 10, 2019, 11:22:29 PM
Sweeeeeet. Will look into these. Is there a lot of places mapped, as I did find a few sites but they seemed to be NA/Mainland European Mountains etc?

Most of the USA you can get hi-res(Lidar) height data from the USGS site for free.

Unfortunately the governments of Europe and UK prefer to protect the industries that have invested money to provide a paid service to obtain this kind of data, so we don't get the same freedom of information that the USA does with data like this, even though they have accurate lidar data sets that have been paid for by the public.
However, on some of the open data sites, individuals have posted good lidar and satellite data of certain areas of Europe and UK and other parts of the world that can be downloaded for free, so it's not all bad-news.  :)

Myst1cPrun3

I'll have a look into it.

I did notice on some google searches that the official .gov website seems to have height map surveys of some sort, but I'm not sure what to do with it or what format its in.
https://data.gov.uk/dataset/8b007edd-a886-44ca-9fa0-2ee2efc1248d/lidar-composite-dsm-25cm

There's also this I found, but again, not sure what to do with it:

https://houseprices.io/lab/lidar/map

Also this site called bluesky seems to have some available to purchase. Not sure if I can find the stuff anywhere else tho.
https://www.blueskymapshop.com/maps/dsm?x=358091.9575&y=401290.621&z=2&w=1000&h=1000&f=&p=[]&m=






Hawk

I recommend you take a look at some tutorials for getting height data into 3D apps....

This should help: https://www.youtube.com/results?search_query=Getting+DEM+height+data+into+3D+applications

Grooveski

There is a version of 3 sisters for rfactor.  I can't find a link that works  :( but it's name was...

Three Sisters 2010 1.00 by Madcowie

A video....
https://www.youtube.com/watch?v=PIOH2BG_ebk

Looks like LauZzZn was going to do a conversion for KRP.  You could maybe PM him and ask if he still has a copy on his hard drive.
http://forum.kartracing-pro.com/index.php?topic=2464.msg25410#msg25410

P.S. Autodesk Infraworks 2015 for converting DEMs and LIDAR to a usable format.  Other programs will do it too but Infraworks is the best I've tried.  It's handled every format I've thrown at it.    :)

Myst1cPrun3

I did see that version, and I think I did see a video of it in KRP, but like you I couldn't find a link that works. As for infraworks I can't say I've heard of it I'll look into it tonight. Thanks

Myst1cPrun3

I did also debate using race track builder on steam. Initially I was going to try and do the entire track there, but it didn't come up that well.
The program can pull accurate (ISH) height data from Google, so I was wondering if it'd be possible toget the height data from that and export it to 3ds Max?
I'm just wondering if the scaling would be difficult for something that already has height in it?

Grooveski

Looks like they've changed the way the lidar data is distributed on data.gov.uk
All the individual tiles are gone, as is the old coverage map.  You now have to link the dataset urls straight into GIS software.

I tried it out with ArcGIS and yeah - it all works ok.

...but unfortunately Three Sisters falls in a gap in the coverage.  I've got all the lidar layers on here, both 25cm ones, the 50cm, 1m and 2m.



So you're out of luck with the free lidar.  :(

Looking at the bluesky site you posted(go to the purchase options and check the previews) their lidar sets have the same gap(probably the same data) - The only one of their sets that covers it is the Photogrammetric DSM 2m, whatever that is.

Myst1cPrun3

I did find this other site called terrain.party which I did manage to get into blender back on my old PC. Didn't have a satellite image over it however so I couldn't see where the tracks were. Which is kinda important lol
I'll have to have a look into it as there's a few track I'd like to look into making, so its depend on what data is available

h106frp


Myst1cPrun3