1. First, start fresh
2. Load an image.
   • Open the Data Choosers.
   • In the Data Chooser tree click on the URLs node.
   • Enter the URL:

     https://www.unidata.ucar.edu/software/idv/data/image.gif
     

   • Press Add Source
   • The IDV will take some time to load this because it defaults to the VisAD data source.
3. Let's look at this image.
   • You should have the image loaded in the Field Selector Note the funny field name. This is the VisAD math type of the data.
   • Create an Omni Control display to see the image.
   • Click on the Mappings button.
   • Let's play around with some of these mappings.
4. Now we're going to look at the moon.
   • In the Data Chooser tree click on the URLs node and enter the URL:

     https://www.unidata.ucar.edu/software/idv/data/moon.gif
     

   • Let's geolocate the image.
     • In the Data Sources in the Field Selector window select Formulas
     • Under Fields open the Imagery tab. Select Geolocate an Image.
     • Under Displays select 3 Color (RGB) Image and create the display.
     • In the popup enter: 90,-180,-90,180 and press OK
     • Now, select the funny (ImageElement,ImageLine)... field.
   • Now, a flat moon picture isn't very exciting. Let's create a Globe display window with the File→New→View Window→Globe Display→One Pane menu item.
   • Create the moon image as described above.

Unidata IDV Workshop for version 5.7 > Accessing and Displaying Data > Miscellaneous Displays