[Boost-users] [Accumulators] application in calculation of section geometric properties

Hello, An idea came to me that it is probably convevient and elegant to construct an accumulator to calculate the geometric properties, such as area, center of gravity, 1st/2nd moment, etc., of a section of, say, a ship. The section may consist of concentrated area, representing stiffener, and 'plating' with even thickness. Is there such example out of there? or, how can I build such an accumulator? I'm still very new to this lib. Thanks for any information in advance. Max B/Rgds