NAME

       prism - reference element (rheolef-7.2)

DESCRIPTION

       The prism reference_element(6) is

           K = { 0 < x < 1 and 0 < y < 1-x and -1 < z < 1 }

                   x2

                   3 ---- 5
                '  | .    |
             4 .  '|      |
             |     |      |
             |     |      |
             |     0 . . .2    x1
             |  '    .
             1 .  '

           x0

        The orientation is such that trihedral (01, 02, 03) is direct and all faces, see from
       exterior, are in the direct sens. See

           P. L. Georges,
           Generation automatique de maillages,
           page 24, coll RMA, 16, Masson, 1994.

        This three-dimensional reference_element(6) is then transformed, after the Piola
       geometrical application, as a prism in a 3D physical space, as a geo_element(6).

       Curved high order transformed geo_element(6) Pk prisms (k >= 1) are supported for 2D or 3D
       geometries.

IMPLEMENTATION

       This documentation has been generated from file fem/geo_element/prism.icc

       const size_t dimension = 3;
       const Float  measure = 1;
       const size_t n_vertex = 6;
       const point vertex [n_vertex] = {
               point( 0, 0,-1 ),
               point( 1, 0,-1 ),
               point( 0, 1,-1 ),
               point( 0, 0, 1 ),
               point( 1, 0, 1 ),
               point( 0, 1, 1 ) };
       const size_t  n_face = 5;
       const size_t face [n_face][4] = {
               { 0, 2, 1, size_t(-1) },
               { 3, 4, 5, size_t(-1) },
               { 0, 1, 4, 3 },
               { 1, 2, 5, 4 },
               { 0, 3, 5, 2 } };
       const size_t  n_edge = 9;
       const size_t edge [n_edge][2] = {
               { 0, 1 },
               { 1, 2 },
               { 2, 0 },
               { 0, 3 },
               { 1, 4 },
               { 2, 5 },
               { 3, 4 },
               { 4, 5 },
               { 5, 3 } };

AUTHOR

       Pierre  Saramito  <Pierre.Saramito@imag.fr>

COPYRIGHT

       Copyright   (C)  2000-2018  Pierre  Saramito  <Pierre.Saramito@imag.fr> GPLv3+: GNU GPL
       version 3 or later  <http://gnu.org/licenses/gpl.html>.  This  is  free  software:  you
       are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by
       law.