Epsg 3875 or epsg 4326 while using gdal2tiles to render on a globe?

CesiumJS
1

Is there any strict recommendation on Projecting to EPSG 3875 before using gdal2tiles?

Currently I combine tiles from EPSG:3875 to tms and terrain from EPSG:4326 to tms , while CesiumJS does support it , I believe 3875 has some issues when latitude goes above ± 85 deg so is it better to project to EPSG:4326 then use gdal2tiles, if I want to render on cesium globe?

2

Hi @Haadi_M1 thanks for you post.

I think you meant to ask about espg3857 (WebMercator) since you are using TMS, instead of espg3875 which is not very common, is that right?

I think you can expect good results viewing your imagery tileset projected on the Cesium globe in espg3857.

But it is true that the practical cutoff for WebMercator is ±85.05112878°. This is because Web Mercator stretches latitude infinitely as it approaches the poles such that rendering breaks and tiles do not exist beyond those latitudes.

If you are looking to render general global imagery, using epsg3857 will probably work well. If you are specifically working with data at the poles, you may want to explore a different solution.

Please let us know if we can help more.
Thanks,
Luke

3

So, if I convert EPSG 3857 to tms formwat can i get rid of the ± 85 latitude problem, as I am currently rendering tiles in tms format.