This is an admittedly artificial example of portals. We've put the visible images in the background (the "base" images), and made portals out of the IR, the temperature plot, and the base map. The PARAMeters needed are:
Here's the applet; to roam around in the portals, "drag" the mouse
around on the background image (hold left button while moving):
Go to the next page to see about portals and overlays together.
AniS Home Page
If you would like more information, or have questions or suggestions, please contact Tom Whittaker