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support for polylines on terrain via entity API #6689
referenced this pull request
Jun 14, 2018
I was wondering if this would be kind of a breaking change, but I guess I can't see a use case where users would be counting on intentional heights of 0 behaving like they do now.
It does put additional onus on the Entity API layer to check position heights though, which seems like it could duplicate a lot of the cartesian-to-cartographic work in
I would recommend against this change. There are certainly places in the world where the ground is below 0, so it's not even a guarantee on the ground is what is desired, plus there are performance issues to consider as well. We might change our mind later (when terrain is on by default) but I wouldn't suggest it for this PR.