-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I don't have much experience with geometry libraries, but looking at the concept diagram for gtl made me curious if symmetry concepts could be integrated in a useful way into the library. That is, some kind of mapping onto planar symmetry groups: http://en.wikipedia.org/wiki/List_of_planar_symmetry_groups which at least takes advantage of basic rotational and reflection symmetries. - From my naive point of view, it seems like knowing the symmetry of a polygon could be useful when operating on it. I do see a section on isotropy, and there is a Rectangle concept, but I don't see anything that could take advantage of the symmetry of, say, an equilateral triangle. Maybe the above isn't relevant to Boost.Polygon though, as I'm having difficulty telling what the library does from the online docs. A full tutorial instead of just a list of commented example code files might help new users a lot. Also, I cant find any documentation on what the names of the library's header files are or what they each contain. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkqUBNMACgkQ5vihyNWuA4UcNACfV55D2u6bGjPA9cV/X7I+NiVS ClgAoJ6rsAUeTj3GhMTavt58XutJR/jA =eamR -----END PGP SIGNATURE-----