Why wont my Imagery Basemap on ArcGIS Online in the Map Viewer zoom beyond 1:1128


So you have built an Image tile set that you have published to ArcGIS Online. It is made up of high resolution imagery (may be 10cm), and as a result you have created a tiling scheme that goes down to level 22 which is a scale of 1:141.

Now you have it on ArcGIS Online. It has published the tiles from .tpk and “The Manage Tiles” dialog clearly shows that the tiling scheme goes to 1:141 but when you load the imagery as a basemap in the ArcGIS Online Map Viewer it only zooms to 1:1128 and nothing you seem to be able to do will change this. What’s going on? Why won’t it zoom beyond 1:1128 even though the image data has tiles that go to 1:141?

The answer to this is relatively simple but not immediately obvious. All Esri basemaps have a maximum display scale of 1:1128 or level 19. When you first open the ArcGIS Online Map viewer it adds an Esri Basemap which contains this setting and so even if you replace the basemap with your higher resolution basemap it will not zoom beyond this scale.

To allow the map to zoom in beyond this scale simply save the Map and exit back to your content page. Then open the map in the ArcGIS Online map viewer again and you will reset the maximum zoom scale and you will now be able to zoom to 1:141 or level 22.

Cheers

Gordon

3 thoughts on “Why wont my Imagery Basemap on ArcGIS Online in the Map Viewer zoom beyond 1:1128

  1. Iain Stuart

    Seems a rather convoluted way of doing things and a pain if you discover this limitation in the field where exiting back to you content page …etc might be difficult especially if you are off like.

    Reply
  2. george

    Any ideas on how tile sets of scale lower than 1:1100 can be created? I need tiles sets at 1:200 scale, but I can not find instructions on how to create such package anywhere.

    Reply
    1. gsumerling Post author

      George,
      You will need to create a tiling scheme file that has larger scales. This is done using the ArcGIS tool Generate Tile Cache Tiling Scheme. You then create the cache using the Manage Tile Cache tool. You then Package the cache using Export Tile Cache Tool and finally share the Package to ArcGIS online using the Share Package Tool .

      Hope this helps

      Gordon S

      Reply

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