Hi,
Aaron Keesing has left the following comment at Add a primitive surface
area function ... for right hyperbolic cylinders (RHC)
http://www.google-melange.com/gci/task/view/google/gci2012/7982218:
Approximation
I used Simpson's Rule to approximate the integral for arclength. Using the
value of n=1000000 could slow things down on old hardware, but should give
accuracy of 10d.p or greater, from what I've tested (not in BRL-CAD).
The derivation of the formula is similar to that of the centroid for an
ehy, and a lot of the code is similar to the code in that function. If
necessary I can make another document with the derivation of surface area.
I haven't thoroughly checked all the code and all the math because I am in
a little hurry but glancing over my notes everything seems to be correct.
Aaron K
Greetings,
The Google Open Source Programs Team
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