Harel M

In maplibre-gl-js geojson is converted to mvt which doesn't have elevation, so this proposal is less about adding elevation to geometries and more about adding a field in the spec

We are actively working on the next vector tiles format, but it will take time... Search for COM and COVTiles.

This is a great write up! Thanks! Regarding using a dem source, there are some issues with which tiles to fetch and use, so it might prove better to copy...

> What are the issues? In terrain it is advised to use a different source instead of using the one for hillshade as the logic of which tile to fetch...

I'm not entirely sure about the details, but there is an opposite direction between cache and source I think, source cache is managing a source instead of the other way...

Sure, implementation details of the web library shouldn't affect the spec. There's no cross reference between sources in the spec right now, but I'm not saying there shouldn't be. I'm...

The calculations are different, and the browser's cache can help in case it's the same tiles, but this proposal is for native as well so let's try and focus on...

I think a user using this source should be able to tweak these parameters in theory, having said that, I think we can start off by using some hardcoded "magic"...

About the multiplier, see @msbarry 's comment which I think is a good solution for this: https://github.com/maplibre/maplibre-style-spec/issues/583#issuecomment-2029497763

Yea, I wouldn't want to try and use the expression engine in a source property, sounds like asking for trouble. I get how generating "too many" contours for a specific...