SIMPLE SOLUTIONS

QUADRANGLE(7RHEOLEF) - Linux man page online | Overview, conventions, and miscellany

Quadrangular reference element.

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rheolef-6.7
quadrangle(7rheolef) rheolef-6.7 quadrangle(7rheolef)

NAME

quadrangle - Quadrangular reference element

DESCRIPTION

The quadrangular reference element is [-1,1]^2.

NUMBERING

y 3---------2 | | | | | | | | 0---------1 x Curved high order Pk quadrangles (k >= 1), in 2d or 3d geometries, are supported. These quadrangles have additional edge-nodes and face-nodes.

THESE NODES ARE NUMBERED AS

first vertex, then edge-node, following the edge numbering order and orientation, and finally the face internal nodes, following the quadrangle lattice. See below for edge numbering and orientation. 3-----6-----2 3---9---8---2 | | | | | | 10 14 15 7 7 8 5 | | | | 11 12 13 6 | | | | 0-----4-----1 0---4---5---1 P2 P3

IMPLEMENTATION

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