Gauss points

In MED, it is possible to declare a Gauss model that describes the location of Gauss points in a reference cell. This Gauss model definition is contained in the GAUSS_LOCALIZATION class. A GAUSS_LOCALIZATION object is associated to a field and to a type.

It is not permitted to define a Gauss model in a polygonal or polyhedric element.

The Gauss model can be :

• loaded from a MED file,
• written to a MED file,
• used to define a FIELD with multiple localizations per element.

Constructing a Gauss Model

A Gauss model can be constructed with the following constructor :

Parameters:

locName	defines a name associated with the gauss model
typeGeo	names the type to which the Gauss model is assocaited
nGauss	defines the number of Gauss points
cooRef	defines an array giving the coordinates of the nodes of the reference element (dimension : spaceDimension * number of nodes for type typeGeo)
cooGauss	defines an array giving the coordinates of the nodes of the Gauss points (dimension : spaceDimension * nGauss )
wg	weights associated with each Gauss point (dimension : nGauss)

Example : in 2D, a Gauss model definition for a triangle would be written as :

string locname("gauss model");
double cooRef[6] ={0.0, 0.0, 1.0, 0.0, 0.0, 1.0};
double cooGauss[6]={0.2, 0.2, 0.8, 0.1, 0.1, 0.8};
double wg[3]={0.3334, 0.3334, 0.3334};
GAUSS_LOCALIZATION model(locname, 
                         MED_EN::MED_TRIA3,  
                         3,
                         cooRef,
                         cooGauss,
                         wg);