If I am not mistaken there is no direct FME reader for XYZ tiles in FME Desktop. Do you see a convenient method for reading raster data being served via an api looking like http://<url>/{z}/{x}/{y}.png ?
I need to read such data on the fly. These are Terrain RGB files which I need to convert into some GeoTIFF DEM format for different resolutions.
What are possible workarounds or solutions? Could a HTTPCaller help in this case?
Thanks!
Hi @olivier,
I think the ImageFetcher transformer would be the best to download images from URLs, since it can auto-detect the image type. It is quite a bit simpler than the HTTPCaller to use.
Most of FME's file based readers can read from URLs as well, so you could also use a FeatureReader transformer with the PNG format.
Hi @daveatsafe ,
Thanks for your reply and suggestion. I have now also tried the ImageFetcher but I keep getting time-outs for all services. That being said I don't think the problem is a real time-out because setting the time-out parameters to 0. Furthermore all services work well from QGIS (without time-outs). Just to be clear I am trying to read from the following type of web map service: https://docs.qgis.org/3.22/en/docs/user_manual/managing_data_source/opening_data.html#using-xyz-tile-services
Indeed everything on our end is served via this protocol.
Quick update: I noticed a bit late that the Windows virtual machine I was trying to do this from had network/firewall settings making it impossible to reach such web services. I tried this on my own personal machine and it worked like a charm. Thank you!