From: wolf Date: Fri, 24 Sep 2004 19:05:25 +0000 (+0000) Subject: Add some graphics. X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b102e695fe989682b48d925edcb3f558e53ba52d;p=dealii-svn.git Add some graphics. git-svn-id: https://svn.dealii.org/trunk@9685 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/deal.II/deal.II/include/fe/fe_dgq.h b/deal.II/deal.II/include/fe/fe_dgq.h index 0ca387b0bb..0abe17bba3 100644 --- a/deal.II/deal.II/include/fe/fe_dgq.h +++ b/deal.II/deal.II/include/fe/fe_dgq.h @@ -30,7 +30,34 @@ template class MappingQ; * Lagrangian polynomials. The shape functions are Lagrangian * interpolants of an equidistant grid of points on the unit cell. The * points are numbered in lexicographical order, with @p x running - * fastest. + * fastest, then @p y, then @z (if these coordinates are present for a + * given space dimension at all). For example, these are the node + * orderings for FE_DGQ(1) in 3d: + * @verbatim + * 6-------7 6-------7 + * /| | / /| + * / | | / / | + * / | | / / | + * 2 | | 2-------3 | + * | 4-------5 | | 5 + * | / / | | / + * | / / | | / + * |/ / | |/ + * 0-------1 0-------1 + * @endverbatim + * and FE_DGQ(2): + * @verbatim + * 24--25---26 24---25--26 + * /| | / /| + * 15 | | 15 16 17| + * / 21 22 23 / / 23 + * 6 | | 6---7---8 | + * | 18--19---20 | | 20 + * 3 / / 3 4 5 / + * | 9 10 11 | | 11 + * |/ / | |/ + * 0---1---2 0---1---2 + * @endverbatim * * @author Ralf Hartmann, 2001, 2004, Guido Kanschat 2001 */