In article <[EMAIL PROTECTED]>, Steve Hill <[EMAIL PROTECTED]> wrote: >I think putting the lateral buoys in a relation would be a good plan - >this means that to find the channel you don't need to know whether they >are placed in the upstream or downstream direction, you just know that the >bit between a port and starboard buoy within the same relation is the >channel. > >i.e. imagine a pair of channels marked like: > > S P S P > S P S P > S P S P > >(where S is a starboard marker, P is a port marker).
There are two systems, IALA "A" and "B". Under the "A" system, you leave green marks to starboard when returning to port. Under the "B" system it is the opposite. You should record colours red/green, not starboard/port. It's probably quite dangerous not to. Nick _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
