ogram was executed on a PC/Linux/gcc/64bit 
   platform, using a DSK file representing a regular icosahedron, 
   the output was: 
 

      Number of vertices:  12
      Number of plates:    20

       Plate number: 1
          Vertex 1: (   0.00000000e+00   0.00000000e+00   1.17557000e+00 )
          Vertex 2: (   1.05146000e+00   0.00000000e+00   5.25731000e-01 )
          Vertex 3: (   3.24920000e-01   1.00000000e+00   5.25731000e-01 )
          Normal:   (   4.91124160e-01   3.56821347e-01   7.94654382e