/* objocta.h - structure values for octahedron */ { "octahedron", "octa", /* long and short names */ "cube", /* long name of dual */ 6, 12, 8, /* number of vertices, edges, and faces */ { /* vertices (x,y,z) */ /* all points must be within radius 1 of the origin */ #define T 1.0 { T, 0, 0 }, { -T, 0, 0 }, { 0, T, 0 }, { 0, -T, 0 }, { 0, 0, T }, { 0, 0, -T }, #undef T }, { /* faces (numfaces + indexes into vertices) */ /* faces must be specified clockwise from the outside */ 3, 0, 4, 2, 3, 0, 2, 5, 3, 0, 5, 3, 3, 0, 3, 4, 3, 1, 2, 4, 3, 1, 5, 2, 3, 1, 3, 5, 3, 1, 4, 3, } }, /* leave a comma to separate from the next include file */ /* end */