extract explicit mesh with topology information from implicit surfaces with boolean operations, and do surface/volume integrating on them.
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#pragma once
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#include <base/subface.hpp>
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namespace internal
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{
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// local: plane x=0
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// u: planar local x-axis
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// v: planar local y-axis
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struct plane_t final : subface {
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};
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} // namespace internal
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namespace detail
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{
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template <>
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struct hasher<internal::plane_t> {
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size_t operator()(const internal::plane_t &subface) const
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{
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const auto &mat = subface.world_to_local.matrix();
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Eigen::Vector4d vec = mat.row(0);
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vec.head<3>().normalize();
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if (vec.z() < 0) vec.head<3>() = -vec.head<3>();
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return hash_funcs(vec);
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}
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};
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} // namespace detail
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