Directionality/Windroses
Bill Moller writes:
"Someone had mentioned directionality... I think with your circle that it would be very very easy, and would require 1 extra drawn line... check out the pic. warchalk 2 shows the cases where the "direction" is straight up or down... note the alternative method with the "directional" line pointing from the center, as otherwise, it's be ambiguous... 2 symbols meaning the same thing..."
Here are Bill's illustrations:
Thanks Bill!
Posted by matt at June 26, 2002 09:31 AM