quadrangle(9)
NAME
Quadrangular reference element
DESCRIPTION
The quadrangular reference element is [0,1]^2.
NUMBERING
y
3---------2
| |
| |
| |
| |
0---------1 x
IMPLEMENTATION
- const size_t dimension = 2;
const Float measure = 4;
const size_t n_vertex = 4;
const Float vertex [n_vertex][dimension] = { - { -1,-1 },
{ 1,-1 },
{ 1, 1 },
{ -1, 1 } }; - const size_t n_edge = 4;
const size_t edge [n_edge][2] = { - { 0, 1 },
{ 1, 2 },
{ 2, 3 },
{ 3, 0 } };