nasa-gibs/gibs-web-examples

Investigate ways to use 4326 vector tiles on 3857 map

Benjaki2 opened this issue · 4 comments

Benjaki2 commented

FIRMS Vector layers are not provided in EPSG:3857 and it would be nice to be able to point users to an example of how to use EPSG:4326 vector layers on their EPSG:3857 maps.

martinvandzura commented

Is there way to display vector tiles from https://gibs.earthdata.nasa.gov/wmts/epsg4326/best/VIIRS_NOAA20_Thermal_Anomalies_375m_All/default/{Time}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.mvt on Mapbox native (iOS) which uses EPSG:3857 projection? Or any way to transform from EPSG:4326 to EPSG:3857 ?

I need to display fires but Thermal_Anomalies layers are not available for EPSG:3857 https://gibs.earthdata.nasa.gov/wmts/epsg3857/best/1.0.0/WMTSCapabilities.xml

mcechini commented

Due to the nature of MVTs being "go here, draw this", I don't think you could easily translate an EPSG:4326 tile to EPSG:3857. Of course, we could just generate the EPSG:3857 vector tiles and serve them natively. In the meantime, you can request a WMS visualization of those products in EPSG:3857... though you lose the vector aspect and simply get a raster representation.

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martinvandzura commented

Thanks, is there a plan to support EPSG:3857 vector tiles natively? I see some layers are already supported but not Fire(Thermal_Anomalies) layers

mcechini commented

No current plan, but I just filed the enhancement ticket for our ingest software. As we are in the midst of testing a major release, I'm not sure what the timeline will be.

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