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I wanted to log my efforts connecting to an Esri ArcGIS Server (AGS) raster layer / TMS-like tile service from JOSM and iD OpenStreetMap Editors. I didn’t see much material out-there, specifically for AGS, so maybe someone else will find this useful.

Previously, I wrote about cutting tiles for consumption via TMS…one method to share that gdal2tiles output is via Amazon S3. For example, a US Standard (region) bucket named ‘tile-demo’ connection URL for iD is: https://s3.amazonaws.com/tile-demo/{z}/{x}/{-y}.png. Thank goodness one can pass -y instead of running a script to rename TMS layout to Google layout on 6 million tiles.

tiles_z19size_total

Another option you may encounter is tiles available from an ArcGIS tile cache (is that the right term?). Here’s how I got there, provided your source also publishes the imagery under an appropriate license & in web mercator, EPSG 3857.

REST resource URL: http://gis.yourcounty.ca.gov/arcgis/rest/services

for iD: http://gis.yourcounty.ca.gov/arcgis/rest/services/Aerials/2014_1_FT_AERIAL/MapServer/tile/{z}/{y}/{x}

for JOSM, use ‘zoom’ instead of ‘z’: http://gis.yourcounty.ca.gov/arcgis/rest/services/Aerials/2014_1_FT_AERIAL/MapServer/tile/{zoom}/{y}/{x}

I didn’t need to specify image filetype in the URL e.g. .jpg / .png

So, if you have something like that available in your area - and it’s better quality/resolution that Bing .. try out those custom sources templates as base imagery during your OpenStreetMap editing.

EDIT: Ian Dees replied, “Another option is to use the WMS endpoint that ships with all MapServer instances with JOSM’s WMS code. OSM US can also proxy.” see https://twitter.com/iandees/status/386150404737622016