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GeoDome Globe

Getting data on the Globe

Keys to working with the Globe:

  1. People cannot zoom in on the Globe.  There is only 1 scale.
  2. Data produced in 2d (on a screen) will look weird on the Globe if it is not warped or projected properly.
  3. You data does not have to cover the Earth--it can cover any sphere including celestial objects, make-believe planets, or even the universe as a whole.
  4. Your data does not need to cover the entire sphere; it can cover a part of the sphere.  However, the entire sphere must be shown.  Thus, showing data for the entire continent of Africa will work well, but showing data for only the area surrounding Golden, Colorado will not.


3 types of data

Data for for the globe can come in 3 distinct ways:

  • Still image (jpg or pgn format)
  • Series of images that creates a sense of the movement of time.
  • Videos, similar to those that can be shown on a normal computer screen.  May or may not have sound.

Projection -- make it look good

Both the still and series of images must be appropriately proportioned (projected) so as to look good displayed on the globe.  If the image is not projected correctly, it will look bad or at least weird.


The data for the globe must be in Equirectangular Projection, also called Equidistant Cylindrical Projection.  The ratio of this image must be 2 to 1 -- twice as wide as tall.

equirectangular projectionEquirectangular projection    

The orange spots cover the same sized area of the globe.


The projection of the data may look a little odd on a flat screen, but will look good on the globe.

Here is a map in the proper projection and how it looks on the Globe.

globe flat  Globe projected good


Here is a map with the wrong projection and how it looks on the globe

world bad projection   world projection bad


Here is the same map projected properly.

globe projection good    globe projected correct


Check your images

You can see if your images will look good on the Globe by uploading to Map to Globe.

Click on "Images" in the upper left corner, and select your file.

NOTE: Map to Globe only allows images up to 10Mb in size.  The images on Mines' Globe can be much larger!!

Data extent

The data for you image does not have to be of the entire globe.  HOWEVER, your data must be laid over the top of entire globe.  For example, you could have data showing the migratory patterns of sea turtles in the South Pacific.  The data only covers the South Pacific, but the data must be placed on the entire globe--not a part of the globe.