Rheolef
7.2
an efficient C++ finite element environment
|
The quadrangle reference_element
is K = [-1,1]^2
.
x1 3---------2 | | | | | | | | 0---------1---> x0
This two-dimensional reference_element
is then transformed, after the Piola geometrical application, as a quadrangle in a 2D or 3D physical space, as a geo_element
.
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.
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
This documentation has been generated from file fem/geo_element/quadrangle.icc