Revision 7cd1fc921902d90d8ab7ebdf6cc4dd37f1506923 authored by Tom Fischer on 12 October 2021, 04:28:22 UTC, committed by Tom Fischer on 12 October 2021, 04:28:22 UTC
[GeoTools] Remove untested, undocumented and probably unused tool TriangulatePolyline. See merge request ogs/ogs!3840
GaussLegendreTet.cpp
/**
* \file
* \copyright
* Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
* Distributed under a Modified BSD License.
* See accompanying file LICENSE.txt or
* http://www.opengeosys.org/project/license
*
*/
#include "GaussLegendreTet.h"
namespace MathLib
{
template <>
const std::array<std::array<double, 3>, GaussLegendreTet<1>::NPoints>
GaussLegendreTet<1>::X = {{{{1. / 4., 1. / 4., 1. / 4.}}}};
template <>
double const GaussLegendreTet<1>::W[1] = {1. / 6.};
const std::array<std::array<double, 3>, GaussLegendreTet<2>::NPoints>
GaussLegendreTet<2>::X = {{{{1. / 4., 1. / 4., 1. / 4.}},
{{1. / 6., 1. / 6., 1. / 6.}},
{{1. / 2., 1. / 6., 1. / 6.}},
{{1. / 6., 1. / 2., 1. / 6.}},
{{1. / 6., 1. / 6., 1. / 2.}}}};
double const GaussLegendreTet<2>::W[5] = {-2. / 15., 0.075, 0.075, 0.075,
0.075};
static std::array<std::array<double, 3>, GaussLegendreTet<3>::NPoints>
initGLTet3X()
{
// Cf. Gellert, M., Harbord, R., 1991. Moderate degree cubature formulas for
// 3-D tetrahedral finite-element approximations. Communications in Applied
// Numerical Methods 7, 487-495. doi:10.1002/cnm.1630070609
const double a = 0.0673422422100983;
const double b = 0.3108859192633005;
const double c = 0.7217942490673264;
const double d = 0.0927352503108912;
const double e = 0.4544962958743506;
const double f = 0.045503704125649;
return {{{{a, b, b}},
{{b, a, b}},
{{b, b, a}},
{{b, b, b}},
{{c, d, d}},
{{d, c, d}},
{{d, d, c}},
{{d, d, d}},
{{e, e, f}},
{{e, f, e}},
{{e, f, f}},
{{f, e, e}},
{{f, e, f}},
{{f, f, e}}}};
}
const std::array<std::array<double, 3>, GaussLegendreTet<3>::NPoints>
GaussLegendreTet<3>::X = initGLTet3X();
static const double p = 0.1126879257180162 / 6.;
static const double q = 0.0734930431163619 / 6.;
static const double r = 0.0425460207770812 / 6.;
double const GaussLegendreTet<3>::W[GaussLegendreTet<3>::NPoints] = {
p, p, p, p, q, q, q, q, r, r, r, r, r, r};
} // namespace MathLib
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