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| 1 | // This file is part of Bembel, the higher order C++ boundary element library. | ||
| 2 | // | ||
| 3 | // Copyright (C) 2022 see <http://www.bembel.eu> | ||
| 4 | // | ||
| 5 | // It was written as part of a cooperation of J. Doelz, H. Harbrecht, S. Kurz, | ||
| 6 | // M. Multerer, S. Schoeps, and F. Wolf at Technische Universitaet Darmstadt, | ||
| 7 | // Universitaet Basel, and Universita della Svizzera italiana, Lugano. This | ||
| 8 | // source code is subject to the GNU General Public License version 3 and | ||
| 9 | // provided WITHOUT ANY WARRANTY, see <http://www.bembel.eu> for further | ||
| 10 | // information. | ||
| 11 | #ifndef BEMBEL_SRC_DUFFYTRICK_INTEGRATE1_HPP_ | ||
| 12 | #define BEMBEL_SRC_DUFFYTRICK_INTEGRATE1_HPP_ | ||
| 13 | |||
| 14 | namespace Bembel { | ||
| 15 | namespace DuffyTrick { | ||
| 16 | /** | ||
| 17 | * \ingroup DuffyTrick | ||
| 18 | * \brief no-problem quadrature routine, elements are sufficiently far away from | ||
| 19 | *each other, but not far-field yet (this is just an isotropic tensor product | ||
| 20 | *quadrature!). | ||
| 21 | * | ||
| 22 | * \todo be sure that map2element computes the weight h*Q.w(i) such that the | ||
| 23 | *integrand may then be scaled by qp1.weight * qp2.weight | ||
| 24 | **/ | ||
| 25 | template <typename Derived, class T> | ||
| 26 | 256 | void integrate1(const LinearOperatorBase<Derived> &LinOp, const T &super_space, | |
| 27 | const ElementTreeNode &e1, int rot1, const ElementTreeNode &e2, | ||
| 28 | int rot2, const ElementSurfacePoints &ffield_qnodes1, | ||
| 29 | const ElementSurfacePoints &ffield_qnodes2, const Cubature &Q, | ||
| 30 | Eigen::Matrix<typename LinearOperatorTraits<Derived>::Scalar, | ||
| 31 | Eigen::Dynamic, Eigen::Dynamic> *intval) { | ||
| 32 | 256 | double h = e1.get_h(); | |
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256 | intval->setZero(); |
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256 | SurfacePoint qp1, qp2; |
| 35 |
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74240 | for (auto i = 0; i < Q.w_.size(); ++i) { |
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73984 | super_space.map2surface(e1, Q.xi_.col(i), h * Q.w_(i), &qp1); |
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21455360 | for (auto j = 0; j < Q.w_.size(); ++j) { |
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21381376 | super_space.map2surface(e2, Q.xi_.col(j), h * Q.w_(j), &qp2); |
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21381376 | LinOp.evaluateIntegrand(super_space, qp1, qp2, intval); |
| 40 | } | ||
| 41 | } | ||
| 42 | |||
| 43 | BEMBEL_UNUSED_(rot1); | ||
| 44 | BEMBEL_UNUSED_(rot2); | ||
| 45 | BEMBEL_UNUSED_(ffield_qnodes1); | ||
| 46 | BEMBEL_UNUSED_(ffield_qnodes2); | ||
| 47 | 512 | return; | |
| 48 | } | ||
| 49 | } // namespace DuffyTrick | ||
| 50 | } // namespace Bembel | ||
| 51 | #endif // BEMBEL_SRC_DUFFYTRICK_INTEGRATE1_HPP_ | ||
| 52 |