Geographic Information Systems Asked on February 11, 2021
I have been trying to directly export ESRI tiles designed for offline use (http://www.arcgis.com/home/item.html?id=226d23f076da478bba4589e7eae95952) to tile package but all the methods I know (Create Map Tile Package georprocessing tool and ArcMap->File->Sharing->Tile Package) fail complaining about layer type is not supported. So I am wondering how I am supposed to “Export” these for offline use.
The end goal is to have some base map in a Mobile Map Package (MMPK) file that includes other data so that crew working in remote areas have some reference about locations.
I have seen the other posts, none really answers this question (or even the original question). Closest questions are:
One method: By exploring the REST API service page and it's sub-pages, especially Estimate Export Tiles Size, you can test and refine input parameters until usable results are achieved.
generate a footprint polygon and convert Features to JSON
Go to the service url and login
At bottom of page open Estimate Export Tile Size
Paste your JSON footprint poly into "Area of interest" text field.
In "Export By" select a Level ID
number you think has imagery for your AOI and level of detail then submit [GET]. (Use a range, i.e. 1-17
, to include overviews.)
totalSize
and totalTilesToExport
are 0 go back and choose a lower Level ID
and resubmitGo back to main service url and choose Export Tiles at page bottom.
true
and set other parameters as per the working Estimate above.Layers.tpk
tile package. Download it!Notes:
The polygon JSON coords do not need to be web mercator! Any valid EPSG wkid
will work. They do need to be Esri JSON though, not GeoJSON.
Don't despair if opening the .tpk shows 'Layers' in table of contents but nothing in the map area. It just means there are no overview pyramids in the package, zoom in several times.
During the Job Status phase 0 percent messages mean that zoom level is empty and you can drop them from the Level
range.
esriJobMessageTypeInformative: Estimated Time Remaining: Calculating... esriJobMessageTypeInformative: Finished:: 0 percent
"ERROR 001461: Failed to package tiles" - probably means tile cache is too large, select a smaller Level
range and try again.
Theoretically the 'Export Map' sub-page should allow exporting a single image up to the max size reported on the main service page (4096 x 4096), but I always got zero results when putting any image size parameters in at all.
Answered by matt wilkie on February 11, 2021
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