geo_element(7rheolef)						    rheolef-6.1 					     geo_element(7rheolef)

NAME

       geo_element - element of a mesh

DESCRIPTION

       Defines	geometrical elements and sides as a set of vertice and edge indexes.  This element is obtained after a Piola transformation from a
       reference element (see reference_element(2)).  Indexes are related to arrays of edges and vertices.   These  arrays  are  included  in  the
       description of the mesh.  Thus, this class is related of a given mesh instance (see geo(2)).

EXAMPLE

       This is the test of geo_element:

	   geo_element_auto<> K;
	   K.set_name('t') ;
	   cout << "n_vertices: " << K.size()	   << endl
		<< "n_edges   : " << K.n_edges()   << endl
		<< "dimension : " << K.dimension() << endl << endl;
	   for(geo_element::size_type i = 0; i < K.size(); i++)
	       K[i] = i*10 ;
	   for(geo_element::size_type i = 0; i < K.n_edges(); i++)
	       K.set_edge(i, i*10+5) ;
	   cout << "vertices: local -> global" << endl;
	   for (geo_element::size_type vloc = 0; vloc < K.size(); vloc++)
	       cout << vloc << "-> " << K[vloc] << endl;
	   cout << endl
		<< "edges: local -> global" << endl;
	   for (geo_element::size_type eloc = 0; eloc < K.n_edges(); eloc++) {
	       geo_element::size_type vloc1 = subgeo_local_vertex(1, eloc, 0);
	       geo_element::size_type vloc2 = subgeo_local_vertex(1, eloc, 1);
	       cout << eloc << "-> " << K.edge(eloc) << endl
		    << "local_vertex_from_edge(" << eloc
		    << ") -> (" << vloc1 << ", " << vloc2 << ")" << endl;
	   }

SEE ALSO

       reference_element(2), geo(2)

rheolef-6.1							    rheolef-6.1 					     geo_element(7rheolef)