.TH "edge" 6rheolef "Version 7.2" "rheolef" \" -*- nroff -*-
.ad l
.nh
.SH NAME
edge \- reference element (rheolef-7\&.2)
.PP
.SH "DESCRIPTION"
.PP
The edge \fBreference_element(6)\fP is \fCK = [0,1]\fP\&. 
.PP
.nf
    0---------1
         x  

.fi
.PP
 This one-dimensional \fBreference_element(6)\fP is then transformed, after the Piola geometrical application, as a segment in a 1D, 2D or 3D physical space, as a \fBgeo_element(6)\fP\&.
.PP
Curved high order transformed \fBgeo_element(6)\fP Pk edges (k >= 1) are supported for 2D or 3D geometries\&. In these cases, the nodes of an high-order edge are numbered as: 
.PP
.nf
  0----2----1     0--2--3--1    0-2-3-4-1
      P2              P3           P4

.fi
.PP
 It means that boundary nodes come first, and then are the internal nodes\&.
.SH "IMPLEMENTATION"
.PP
This documentation has been generated from file fem/geo_element/edge\&.icc
.PP
.PP
.nf
const size_t dimension = 1;
const Float  measure = 1;
const size_t n_vertex = 2;
const point vertex [n_vertex] = {
        point(0),
        point(1) };
.fi
.PP
 
.SH AUTHOR
Pierre  Saramito  <Pierre.Saramito@imag.fr>
.SH COPYRIGHT
Copyright   (C)  2000-2018  Pierre  Saramito  <Pierre.Saramito@imag.fr>
GPLv3+: GNU GPL version 3 or later  <http://gnu.org/licenses/gpl.html>.
This  is  free  software:  you  are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.