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rAKA/src/model/common/non_local_toolbox/base_weight_function_inline_impl.hh
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base_weight_function_inline_impl.hh
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/**
* @file base_weight_function_inline_impl.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Cyprien Wolff <cyprien.wolff@epfl.ch>
*
* @date creation: Wed Sep 01 2010
* @date last modification: Wed Sep 27 2017
*
* @brief Implementation of inline function of base weight function
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "base_weight_function.hh"
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_BASE_WEIGHT_FUNCTION_INLINE_IMPL_HH_
#define AKANTU_BASE_WEIGHT_FUNCTION_INLINE_IMPL_HH_
namespace akantu {
/* -------------------------------------------------------------------------- */
inline void BaseWeightFunction::init() {
/// compute R^2 for a given non-local radius
this->R2 = this->R * this->R;
}
/* -------------------------------------------------------------------------- */
inline void BaseWeightFunction::setRadius(Real radius) {
/// set the non-local radius and update R^2 accordingly
this->R = radius;
this->R2 = this->R * this->R;
}
/* -------------------------------------------------------------------------- */
inline Real
BaseWeightFunction::operator()(Real r, const IntegrationPoint & /* q1 */,
const IntegrationPoint & /* q2 */) const {
/// initialize the weight
Real w = 0;
/// compute weight for given r
if (r <= this->R) {
Real alpha = (1. - r * r / this->R2);
w = alpha * alpha;
// *weight = 1 - sqrt(r / radius);
}
return w;
}
} // namespace akantu
#endif /* AKANTU_BASE_WEIGHT_FUNCTION_INLINE_IMPL_HH_ */
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