Triangle Namespace Reference

Classes
class	prm
class	Tri

Variables
const int	N = 3
const int	NPI = 4
constexpr double	u [NPI] = {1 / 3., 1 / 5., 3 / 5., 1 / 5.}
constexpr double	v [NPI] = {1 / 3., 1 / 5., 1 / 5., 3 / 5.}
constexpr double	pds [NPI] = {-27 / 96., 25 / 96., 25 / 96., 25 / 96.}
constexpr double	a [N][NPI]
const Eigen::Matrix< double, N, NPI >	eigen_a

Detailed Description

to grab altogether some constants and calculation functions for class Tri

Variable Documentation

a

constexpr double Triangle::a[N][NPI]

constexpr

Initial value:

= {
        {1. - u[0] - v[0], 1. - u[1] - v[1], 1. - u[2] - v[2], 1. - u[3] - v[3]},
        {u[0], u[1], u[2], u[3]},
        {v[0], v[1], v[2], v[3]}}

hat function constants

eigen_a

const Eigen::Matrix<double,N,NPI> Triangle::eigen_a

Initial value:

=
            (Eigen::MatrixXd(N,NPI) << a[0][0], a[0][1], a[0][2], a[0][3],
                                       a[1][0], a[1][1], a[1][2], a[1][3],
                                       a[2][0], a[2][1], a[2][2], a[2][3] ).finished()

eigen matrix a initialization from C array

N

const int Triangle::N = 3

number of sommits

NPI

const int Triangle::NPI = 4

number of Gauss points

pds

constexpr double Triangle::pds[NPI] = {-27 / 96., 25 / 96., 25 / 96., 25 / 96.}

constexpr

some constant weights to build hat functions

u

constexpr double Triangle::u[NPI] = {1 / 3., 1 / 5., 3 / 5., 1 / 5.}

constexpr

some constants to build hat functions

v

constexpr double Triangle::v[NPI] = {1 / 3., 1 / 5., 1 / 5., 3 / 5.}

constexpr

some constants to build hat functions