# MOERTEL::Function_ConstantTri Class Reference

A 2D constant shape function for a 3-noded triangle More...

`#include <mrtr_functions.H>`

Inheritance diagram for MOERTEL::Function_ConstantTri:

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Collaboration diagram for MOERTEL::Function_ConstantTri:

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List of all members.

## Public Member Functions

Function_ConstantTri (int out)
Constructor.
Function_ConstantTri (const MOERTEL::Function_ConstantTri &old)
Copy-Constructor.
virtual MOERTEL::FunctionClone () const
Clone method.
virtual ~Function_ConstantTri ()
Destructor.
bool EvaluateFunction (const MOERTEL::Segment &seg, const double *xi, double *val, const int valdim, double *deriv)
Evaluate the function and derivatives at a given local coordinate.

## Detailed Description

A 2D constant shape function for a 3-noded triangle

phi_1 = 1
phi_2 = 1
phi_3 = 1
phi_1,xi_1 = 0
phi_1,xi_2 = 0
phi_2,xi_1 = 0
phi_2,xi_2 = 0
phi_3,xi_1 = 0
phi_3,xi_2 = 0

Author:
Michael W. Gee (mwgee@sandia.gov)

## Constructor & Destructor Documentation

 MOERTEL::Function_ConstantTri::Function_ConstantTri ( int out ) ` [inline]`

Constructor.

Parameters:
 out : Level of output information written to stdout ( 0 - 10 )

## Member Function Documentation

 MOERTEL::Function * MOERTEL::Function_ConstantTri::Clone ( ) const` [virtual]`

Clone method.

Makes a deep copy of this instance and returns a pointer to it.

Implements MOERTEL::Function.

 bool MOERTEL::Function_ConstantTri::EvaluateFunction ( const MOERTEL::Segment & seg, const double * xi, double * val, const int valdim, double * deriv ) ` [virtual]`

Evaluate the function and derivatives at a given local coordinate.

Parameters:
 xi (in) : Local coordinate where to evaluate the function (dimension 2) val (out) : Function values at xi, dimension 3, if NULL on input no evaluation valdim (in) : Dimension of val should be 3 deriv (out) : Derivative of functions at xi, dimension 6, if NULL on input no evaluation

Implements MOERTEL::Function.

The documentation for this class was generated from the following files:

Generated on Wed May 12 21:58:36 2010 for Moertel by  1.4.7