2 \page connectivity_page Nodal connectivity of elements
4 The following images show order of nodes in correctly defined elements.
7 <tr><td> Edge (segment): linear and quadratic<br>
8 \image html connectivity_edge.png </td></tr>
9 <tr><td> Triangle: linear, quadratic and bi-quadratic <br>
10 \image html connectivity_tria.png </td></tr>
11 <tr><td> Quadrangle: linear, quadratic and bi-quadratic <br>
12 \image html connectivity_quad.png </td></tr>
13 <tr><td align="left"> Polygon: linear and quadratic <br>
14 \image html connectivity_polygon.png </td></tr>
15 <tr><td> Tetrahedron: linear and quadratic <br>
16 \image html connectivity_tetra.png </td></tr>
17 <tr><td> Hexahedron: linear, quadratic and tri-quadratic <br>
18 \image html connectivity_hexa.png </td></tr>
19 <tr><td> Pentahedron: linear and quadratic <br>
20 \image html connectivity_penta.png </td></tr>
21 <tr><td> Pyramid: linear and quadratic <br>
22 \image html connectivity_pyramid.png </td></tr>
23 <tr><td> Hexagonal prism <br>
24 \image html connectivity_hex_prism.png </td></tr>
25 <tr><td> Polyhedron is defined by <ul>
26 <li> a sequence of nodes defining all facets</li>
27 <li> a sequence of number of nodes per facet</li>
30 Node1_of_Facet1, Node2_of_Facet1, ..., NodeN_of_Facet1, <br>
31 Node1_of_Facet2, Node2_of_Facet2, ..., NodeN_of_Facet2, <br>
32 Node1_of_FacetM, Node2_of_FacetM, ..., NodeN_of_FacetM <br>
33 \b Quantity of nodes per facet: <br>
34 NbNodes_in_Facet1, NbNodes_in_Facet2, ..., NbNodes_in_FacetM
36 For example the polyhedron shown in the image below is defined by nodes <br>
37 [ 1,2,3, 1,4,5,2, 2,5,6,3, 3,6,4,1, 4,7,9,5, 5,9,8,6, 6,8,7,4, 7,8,9 ]<br>
38 and quantities [ 3, 4, 4, 4, 4, 4, 4, 3 ]
39 \image html connectivity_polyhedron.png
40 Order of nodes of a facet must assure outward direction of its normal.