DESCRIPTION
The edge reference element is K = [0,1].
0---------1 xCurved high order Pk edges (k >= 1), in 2d or 3d geometries, are supported. These edges have internal nodes, numbered as:
0----2----1 0--2--3--1 0-2-3-4-1 P2 P3 P4
IMPLEMENTATION
const size_t dimension = 1; const Float measure = 1; const size_t n_vertex = 2; const point vertex [n_vertex] = { point(0), point(1) };