Cesium can support any Coordinate System map to show, not need to transform Coordinate System

[small-lady]

I recently tried using cesium, and cesium only support EPSG:3857 and EPSG:4326;
These problems i encountered
the first： a mistake occurred in "ArcGisMapServerImageryProvider": Tile spatial reference WKID 4490 is not supported.
second： error message An error occurred in "m": Failed to obtain image tile X: 1 Y: 0 Level: 0.
Following is my use case ：
the first : My use scene requires cesium to support superimposing a variety of different coordinate systems

const acg4 = new Cesium.ArcGisMapServerImageryProvider({
url:
"http://61.175.211.102/arcgis/rest/services/wzmap/map/MapServer",
}); // Spatial Reference: 4490

error message
a mistake occurred in "ArcGisMapServerImageryProvider": Tile spatial reference WKID 4490 is not supported.

---

const acg3 = new Cesium.WebMapTileServiceImageryProvider({
  url: 'http://61.175.211.102/arcgis/rest/services/wzmap/map/MapServer/WMTS?',
  layer: 'wzmap_map',
  style: 'default',
  tileMatrixSetID: 'default028mm',
  format: 'image/png',
}); // Spatial Reference: 4490;

error message An error occurred in "m": Failed to obtain image tile X: 1 Y: 0 Level: 0.

second：I have a map with a coordinate system of 4326, but it is not global but just a local area，error message An error occurred in "m": Failed to obtain image tile X: 1 Y: 0 Level: 0. i hope load map tile X: 1 Y: 0 Level: 0 can support user to setting not load from X: 1 Y: 0 Level: 0;

The above are my needs. I hope cesium can see and consider it. thank you very much

[OmarShehata]

Thanks for detailing your feature request here @small-lady ! We do have a feature request open for this here: #3877, which I will bump with your request.

In the meantime, I would recommend reprojecting your imagery before loading it into CesiumJS. One way you can do this is by uploading your source GeoTIFFs to Cesium ion and they will be automatically reprojected.

[GatorScott]

Alternatively, you could try to configure that server to also provide the tiles in a Cesium compatible CRS. Unfortunately, those compatible CRSs don't seem to be listed in the documentation. EPSG:3857 appears to be one supported CRS.