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Include a default imagery layer for Cesium #1938
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If no layers are configured for a new Cesium map, then the Natural Earth II base layer will now be displayed (in branch The Natural Earth II layer can now also be added to any map by adding a layer with the following config to the The images for this layer are shipped with Cesium and thus also shipped with MetacatUI |
We never merged the @jeanetteclark recently discovered open imagery that is hosted by USGS. I'm re-opening this issue to cover adding a USGS layer as another default option. |
The USGS layer can now be configured by setting a layer asset to:
The cesium imagery model takes care of setting the other required options (url, attribution, etc). This is similar to how the Natural Earth layer can be configured:
Here is how the USGS layer looks from a global view: It's higher resolution than the Natural Earth layer. Here's a random area in Alaska at around 100m scale: The downsides are that the imagery disappears at around the 50-100m scale mark, and that there is no imagery covering the poles: |
In order to use Cesium maps where we use Google maps, we should include a default imagery layer in Cesium maps that doesn't require Cesium Ion or another service. We could 'ship' this default layer with MetacatUI.
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