3 ms·
> Is it a materialized remapping of the underlying .hgt or is it done client-side, in some webGL-shader? The map loads pre-rendered map tiles as JPG images fro
by jamessb 5y ago
> Is it a materialized remapping of the underlying .hgt or is it done client-side, in some webGL-shader?
The map loads pre-rendered map tiles as JPG images from Amazon S3 (you can confirm this in the Network tab of your browser's dev tools).
The page says:
> This map layer is hosted as a public service, and map tiles are free to use under a Creative Commons 4.0 Attribution-NonCommercial-ShareAlike license.
- jimmySixDOF 5y agoGeosynced DEMs prepped to feed into microwave link design software can cost a lot of money. I knew one engineer who was sent up in a special plane they found just to photograph a remote region and then he matched the elevation data by hand for all the routes. I don't know what the non commercial uses are for this data but I suspect it would be otherwise prohibitively expensive without the CC4.0 license so I am happy for whomever it benefits.