Coordinate systems

[aclel]

Is there any way to support coordinate systems other than EPSG:4326 or EPSG:3857?

I've got some higher accuracy datasets that I would like to keep in MGA2020 Zone 55 (EPSG:7855) or in GDA2020 (EPSG:7844)

[na9da]

For 3d mode Terria uses CesiumJS which only supports EPSG:4326. There's an open issue in CesiumJS project to support other projections.

In 2d mode, it might be possible to add support using Proj4Leaflet (which i think reprojects on the fly) but as of now it is not possible.