#OpenTopography

Hans van der Kwast :qgis:hansakwast@fosstodon.org
2024-11-24

#30DayMapChallenge Day 24: Only circular shapes
Elevation of #Cyprus in dot matrix style. Made with #QGIS using #OpenData SRTM 3 Arc-Second via #OpenTopography DEM Downloader plugin.

Hans van der Kwast :qgis:hansakwast@fosstodon.org
2024-11-06

#30DayMapChallenge Day 6: Rasters
My thoughts are with the victims of the devastating #ValenciaFlood.

I've created a map showing flow accumulation of 500 mm uniform rainfall near Valencia using #QGIS and the #PCRaster Tools plugin. #OpenData: SRTM90 via the #OpenTopography DEM downloader plugin and #OpenStreetMap via the QuickOSM plugin. :openstreetmaps: :qgis:

Dinosaurs say Raawresklarski@peoplemaking.games
2024-09-13

Finally had some time to return to my pet project, and properly port my helicopter physics and aerodynamics from Long Line Helicopter'ine.

With the controller in place I decided to take the Terrain3D addon for #Godot by Tokisan Games for another spin.

youtube.com/watch?v=dhKCLINyow

It's amazing that I was flying about a 16,000km2 piece of terrain in less than 15 mins. The terrain heightmap is #lidar data from #OpenTopography of the area north of Vancouver Canada.

Check out Tokisan Game's addon here:
tokisan.com/terrain3d/
or on the Asset Library

Ragnar Heiðar ÞrastarsonRagnarHeidar
2023-09-12

Great to see being available via as well. ArcticDEM was a total game changer when it was first made available for replacing a old patchwork of DEMs with some parts based on digitized contour lines from the 1950s. Today it’s the default surface layer for all of our avalanche and flood modeling. We owe Polar Geospatial Center lots of 🍺

opentopography.org/news/arctic

2023-05-26

Howdy #mapstodon !

I'm hoping someone can take the time to help a #GIS #noob with a project. I'm working in the #Unity3D game engine to create game terrain from real world data.

So far it has been successful, but it is a painstaking process done completely by hand.

My trouble has to do with the projection of #OpenTopography data, USGS30m #Rasters to be precise.

I've attached two images to illustrate my problem...

DEM data converted to Unity Texture2D.

Note the vertical compression. This is incorrect...Open Topography's "visualization product" of the same area.

Note the very different vertical dimension. This one is correct.A screenshot from OpenTopography.org showing the job results of the requested data.
2022-12-14

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