Esteemed list... My wife is a realtor who often wants to determine the direction a house is facing. Being directionally impaired, and not having a car with a built-in compass, she is usually at a loss. I had the idea, not especially original or brilliant, of writing an anti-sundial for her Palm PDA. My idea is that, given the time and approximate location and knowing the position of the sun, we should be able to determine which way is North. I was thinking of a program that would draw a compass rose and display a marker showing the sun's position. She would then rotate the Palm until the marker pointed at the sun and, voila, the rose would be oriented properly. Accuracy of +/- 30 degrees is adequate. Any reason this won't work? And, since I'm mathematically lazy, can someone tell me how to do the calculation?
Thanks. -
