Freely available Offline World Imagery?

[M. Timson]

Hello,

I was wondering if anyone knows of some freely available world imagery tilesets, similar to the ArcGIS World Imagery? I have seen the NaturalEarthII imagery, but I was hoping to find something with more detail.

Thank you

[Hannah Pinkos]

Hello,

We have a few extra levels of NatrualEarthII imagery available here: https://github.com/AnalyticalGraphicsInc/cesium-assets/tree/master/imagery/NaturalEarthII

I'm not sure of any other tilesets available for download, but maybe someone else will have a suggestion =)

-Hannah

[Mark Erikson]

There's some freely-available source datasets that could be used to generate Cesium compatible tilesets.  For example, NASA's Blue Marble Next Gen dataset at http://visibleearth.nasa.gov/view.php?id=73776 , and Unearthed Outdoors' True Marble dataset at http://www.unearthedoutdoors.net/global_data/true_marble/ .  You would want to use tools like gdal2tiles to turn those source images into a TMS-format tileset.

I spent time last fall doing research on geodata tools, formats, and data sources, and wrote them up in an internal wiki.  At some point I may see if I can post that info publicly, but doing so is pretty low on my priority list.