/usr/include/trilinos/Intrepid_CubaturePolylibDef.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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// ************************************************************************
//
// Intrepid Package
// Copyright (2007) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Pavel Bochev (pbboche@sandia.gov) or
// Denis Ridzal (dridzal@sandia.gov).
//
// ************************************************************************
// @HEADER
/** \file Intrepid_CubaturePolylibDef.hpp
\brief Definition file for the Intrepid::CubaturePolylib class.
\author Created by P. Bochev and D. Ridzal.
*/
namespace Intrepid {
template <class Scalar, class ArrayPoint, class ArrayWeight>
CubaturePolylib<Scalar,ArrayPoint,ArrayWeight>::CubaturePolylib(int degree, EIntrepidPLPoly poly_type, Scalar alpha, Scalar beta) {
TEST_FOR_EXCEPTION((degree < 0),
std::out_of_range,
">>> ERROR (CubaturePolylib): No cubature rule implemented for the desired polynomial degree.");
degree_ = degree;
dimension_ = 1;
poly_type_ = poly_type;
alpha_ = alpha;
beta_ = beta;
} // end constructor
template <class Scalar, class ArrayPoint, class ArrayWeight>
const char* CubaturePolylib<Scalar,ArrayPoint,ArrayWeight>::getName() const {
return cubature_name_;
} // end getName
template <class Scalar, class ArrayPoint, class ArrayWeight>
int CubaturePolylib<Scalar,ArrayPoint,ArrayWeight>::getDimension() const {
return dimension_;
} // end dimension
template <class Scalar, class ArrayPoint, class ArrayWeight>
int CubaturePolylib<Scalar,ArrayPoint,ArrayWeight>::getNumPoints() const {
int np = 0;
switch (poly_type_) {
case PL_GAUSS:
np = (degree_+(int)2)/(int)2;
break;
case PL_GAUSS_RADAU_LEFT:
case PL_GAUSS_RADAU_RIGHT:
if (degree_ == 0)
np = 2;
else
np = (degree_+(int)3)/(int)2;
break;
case PL_GAUSS_LOBATTO:
np = (degree_+(int)4)/(int)2;
break;
default:
TEST_FOR_EXCEPTION((1),
std::invalid_argument,
">>> ERROR (CubaturePolylib): Unknown point type argument.");
}
return np;
} // end getNumPoints
template <class Scalar, class ArrayPoint, class ArrayWeight>
void CubaturePolylib<Scalar,ArrayPoint,ArrayWeight>::getAccuracy(std::vector<int> & accuracy) const {
accuracy.assign(1, degree_);
} // end getAccuracy
template <class Scalar, class ArrayPoint, class ArrayWeight>
const char* CubaturePolylib<Scalar,ArrayPoint,ArrayWeight>::cubature_name_ = "INTREPID_CUBATURE_POLYLIB";
template <class Scalar, class ArrayPoint, class ArrayWeight>
void CubaturePolylib<Scalar,ArrayPoint,ArrayWeight>::getCubature(ArrayPoint & cubPoints, ArrayWeight & cubWeights) const {
int numCubPoints = getNumPoints();
int cellDim = getDimension();
// check size of cubPoints and cubWeights
TEST_FOR_EXCEPTION( ( ( (int)cubPoints.size() < numCubPoints*cellDim ) || ( (int)cubWeights.size() < numCubPoints ) ),
std::out_of_range,
">>> ERROR (CubatureDirect): Insufficient space allocated for cubature points or weights.");
// temporary storage
FieldContainer<Scalar> z(numCubPoints);
FieldContainer<Scalar> w(numCubPoints);
// run Polylib routines
switch (poly_type_) {
case PL_GAUSS:
IntrepidPolylib::zwgj(&z[0], &w[0], numCubPoints, alpha_, beta_);
break;
case PL_GAUSS_RADAU_LEFT:
IntrepidPolylib::zwgrjm(&z[0], &w[0], numCubPoints, alpha_, beta_);
break;
case PL_GAUSS_RADAU_RIGHT:
IntrepidPolylib::zwgrjp(&z[0], &w[0], numCubPoints, alpha_, beta_);
break;
case PL_GAUSS_LOBATTO:
IntrepidPolylib::zwglj(&z[0], &w[0], numCubPoints, alpha_, beta_);
break;
default:
TEST_FOR_EXCEPTION((1),
std::invalid_argument,
">>> ERROR (CubaturePolylib): Unknown point type argument.");
}
// fill input arrays
for (int pointId = 0; pointId < numCubPoints; pointId++) {
for (int dim = 0; dim < cellDim; dim++) {
cubPoints(pointId,dim) = z[pointId];
}
cubWeights(pointId) = w[pointId];
}
} // end getCubature
} // end namespace Intrepid
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