Caching with ArcGIS: Creating A Custom Basemap Tiling Scheme

[@georginascholes2478]

Hi :) Thanks for a great video. I accidentally posted my comment on another of your videos instead of this one - sorry for any confusion. Can you let me know whether it is essential to have the same origin and levels of detail as the vector basemap? For ArcGIS Online, the Map Viewer can show a tile layer with a different tiling scheme than the basemap, but the coordinate systems must match. What I'm after is when is it essential to match origins and levels of detail? Finally, do you know of a way to work out the tiling scheme of a raster tile layer as easily as this?

[@CartoRedux]

Hi Georgina, in terms combining basemaps / tile layers in the same map, all of the tiling schemes need to have the same coordinate reference system, origin, and levels of detail. The map viewer may be doing some magic behind the scenes to more gracefully switch between basemaps of different tiling schemes; but it's still not able to show two tile layers with different tiling schemes. The fastest way to find the tiling scheme of a tile layer is to dig in to the item details page and find the rest endpoint URL. Not the friendliest of things to navigate; but all the info is there.

[@miriam_8450]

Hi, is there a way to find the origin in arcgis pro itself? I couldn't find the Origin with Chrome, because I have No expierence with the Developer Tools.

[@CartoRedux]

Not that I could find. If you have a raster tile or vector tile layer in ArcGIS Pro, the layer properties source tab has a server URL that you can open in a browser, and it should list the origin under the tile info heading. If the page you launch doesn't appear to be formatted, it's likely a vector tile service. Copy all of the text, and paste it into Notepad++. Make sure you have the JSTool plugin loaded. Paste the text into Notepad++, and use the JSTool plugin - "JSFormat" (ctrl+alt+m), to make the text a bit easier to read and locate the tiling scheme origin. I hope this helps!

[@miriam_8450]

@@CartoRedux thank you so much 👍