[dgorges]

Reminds me of another project visualizing wifi signals: > This project explores the invisible terrain of WiFi networks in urban spaces by light painting signal strength in long-exposure photographs. > A four-metre long measuring rod with 80 points of light reveals cross-sections through WiFi networks using a photographic technique called light-painting.

* More Info: nearfield.org/2011/02/wifi-light-painting * Video: https://vimeo.com/20412632 * Thread on Hacker News: https://news.ycombinator.com/item?id=2270878

[ChuckMcM]

That is interesting also, but it is 1D only, the light stick's total illuminated length is signal strength. If they re-did that project using RGB LEDs and each LED colored from Red to Blue based on the signal strength at the LED then you would get a 2D plot, And of course if did as the author and photograph an LED at intervals in a 3D space you could do the 3D plotting.

The whole thing has my head buzzing with ideas. Imagine a drone which has a string of RGB LEDs hanging from it making such plot using GPS/6DOF IMU data to allow a computer to reconstruct the scene. Could be very cool indeed.

[jrk_]

I was thinking the same about drones. Take a drone and let it automatically cover an area you're interested in. Maybe following a certain pattern or just random movement.