Where can we source/download the cesium format terrain data set?
Our application is on an offline server so have to server the tiles and terrain data from our own local server.
Thanks
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You can download with Cesium.createWorldTerrain() 's endpoint URL using a simple downloader.
See this
But wonder if it is a violation of Cesium or not.
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There’s a “Cesium Terrain Builder” open-source tool that can ingest digital terrain data in common formats, and output Cesium terrain tiles. There’s also a prebuilt Docker image that someone is maintaining:
- https://github.com/geo-data/cesium-terrain-builder
- https://github.com/tum-gis/cesium-terrain-builder-docker
I was able to use the CTB tool a while back with the ALOS30 terrain dataset ( ALOS Global Digital Surface Model "ALOS World 3D - 30m" (AW3D30) ) , although I had to do a lot of preprocessing to make it work.
The tiles can be served directly off disk by any static file server, but I ended up putting them into an MBTiles-format SQLite container file and writing a small Python server that would query the tile data for each request and return it.
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@ZhefengJin @Mark_Erikson thank you for jumping in here - you both offered great suggestions!
-Sam