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download basemap

johnmarker

Hello,

Is it possible to take just a base map, like the topographic map, offline? There do not need to be any other custom layers. This should eliminate having to create a full tile package hopefully. Is there any resource that has a list of downloadable base maps for offline use?

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johnmarker

@LukeSmallwood I used that sample you shared a link to for ExportTileCache. It uses the default World_Street_Map and contains a link to it. I have tread looking around and different URL's, but I'm not sure hw to export different maps (like world topographic). The AGOL link shows me a bunch of different maps available for export but I'm not sure where to go/what URL to use for those maps in the program in order to export them.

LSmallwood

Hi @johnmarker - Could you give some more details of the workflow you're building? I'm not sure exactly what you mean by the "local server". Typically a Runtime app that wants to take a basemap offline might do something like:

1 - Load the online service (e.g. one of those in the group I linked above) when you have a connection (e.g. in the office)

2 - Run either the ExportTileCacheTask or ExportVectorTilesTask to download the tile package to the local device (the local file system of the computer)

3 - Use the tile package in a new layer which won't need a network connection

You can either do all 3 steps in a single app, or have one which takes the data offline and then another app that simply consumes it. You can also share a tile package with Runtime apps on other devices if needed.

Does that make sense?

johnmarker

@LukeSmallwood Thanks for sharing that info.

It looks like they offer a lot of ways to download a basemap for use offline, but as i have been looking around it looks like that most the time these offline maps remain on the local server. Is there a way to possibly download the basemap directly to the local file system of the computer? The AGOL group link you attached had many maps available for export but it seemed they were for export to other Esri/ArcGIS products like ArcGIS pro rather than being able to download them as a tile or raster file. Is it possible to do this?

LSmallwood

Hi @johnmarker - yes you can take either raster or vector basemaps offline using Runtime.

The ExportTileTileCache task allows you to export raster tiles from suitable online services as a tile package (.tpk or .tpkx) - see this sample.

The ExportVectorTilesTask lets you take vector basemap tiles offline as a vector tile package (.vtpk). You can also export styles to change the appearance of your offline vector basemap.

Esri has a number of services that support exporting tiles - for example see this AGOL group. Just a note that you will need to sign (or use an API key) to export from these esri services.

Hope that helps!

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