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39 lines
1.5 KiB
39 lines
1.5 KiB
2 weeks ago
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#pragma once
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#include <math/math_defs.hpp>
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#include <primitive/axis/extrude_axis.hpp>
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namespace internal
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{
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struct PE_API helixline_extrude_axis final : public extrude_axis {
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~helixline_extrude_axis() override = default;
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double get_closest_param(Eigen::Vector3d p) const override;
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std::pair<Eigen::Vector2d, Eigen::Projective2d> to_pattern_local(double t, Eigen::Vector3d p) const override;
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Eigen::AffineCompact3d get_local_cap_mat(double t) const override;
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aabb_t get_local_aabb() const override { return k_aabb_up_unit; }
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double scale_coeff_x; // x缩放倍率（r）
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double scale_coeff_y; // y缩放倍率（rh*sqrt((theta^2+1)/(r^2theta^2+h^2))）
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double total_theta; // 总旋转角度（<0时为左旋，>0时为右旋）
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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::helixline_extrude_axis> {
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size_t operator()(const internal::helixline_extrude_axis& axis) const { return XXH3_64bits(&axis, sizeof(axis)); }
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};
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template <>
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struct eq_compare<internal::helixline_extrude_axis> {
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bool operator()(const internal::helixline_extrude_axis& lhs, const internal::helixline_extrude_axis& rhs) const
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{
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return std::abs(lhs.scale_coeff_x - rhs.scale_coeff_x) <= epsilon //
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&& std::abs(lhs.scale_coeff_y - rhs.scale_coeff_y) <= epsilon //
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&& std::abs(lhs.total_theta - rhs.total_theta) <= epsilon;
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}
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};
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} // namespace detail
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