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38 lines
1.2 KiB
38 lines
1.2 KiB
3 days ago
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#pragma once
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#include <integrand_handle.hpp>
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#include <fwd_types.hpp>
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#include <macros.h>
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struct SIv2_API integrator {
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auto eval_surf_int_by(const integrand_handle_base& handle) const
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{
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double result{};
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for (auto i = 0; i < integral_points.size(); ++i) {
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for (auto j = 0; j < integral_points[i].size(); ++j) {
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const auto& p = integral_points[i][j];
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result += surface_integral_weights[i][j] * handle.f(p.x(), p.y(), p.z());
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}
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}
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return result * handle.w_without_grad();
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}
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auto eval_volu_int_by(const integrand_handle_base& handle) const
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{
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double result{};
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for (auto i = 0; i < integral_points.size(); ++i) {
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for (auto j = 0; j < integral_points[i].size(); ++j) {
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const auto& p = integral_points[i][j];
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result += volume_integral_weights[i][j] * handle.f(p.x(), p.y(), p.z());
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}
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}
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return result * handle.w();
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}
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stl_vector_mp<stl_vector_mp<Eigen::Vector4d>> integral_points{};
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stl_vector_mp<stl_vector_mp<double>> surface_integral_weights{};
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stl_vector_mp<stl_vector_mp<double>> volume_integral_weights{};
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};
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