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48 lines
1.4 KiB
48 lines
1.4 KiB
#pragma once
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#include <numeric>
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#include <primitive/pattern/pattern.hpp>
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#include <math/math_defs.hpp>
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#include <primitive_descriptor.h>
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namespace internal
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{
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struct PE_API polyline_pattern final : public pattern {
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~polyline_pattern() override = default;
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std::pair<bool, Eigen::Vector2d> eval_sdf(Eigen::Vector2d p) const override;
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double get_max_bounding_length() const override
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{
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Eigen::AlignedBox2d aabb{};
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for (const auto& v : vertices) aabb.extend(v);
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return aabb.sizes().maxCoeff();
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}
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std::vector<Eigen::Vector2d> vertices{}; // 所有顶点（圆弧段为端点）
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std::vector<double> bulges{}; // bulge = tan(theta/2)
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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::polyline_pattern> {
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size_t operator()(const internal::polyline_pattern& pattern) const
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{
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auto parity1 = hash_funcs(pattern.vertices.begin(), pattern.vertices.end());
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auto parity2 = hash_funcs(pattern.bulges.begin(), pattern.bulges.end());
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return hash_combine(size_t{0}, parity1, parity2);
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}
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};
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template <>
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struct eq_compare<internal::polyline_pattern> {
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bool operator()(const internal::polyline_pattern& lhs, const internal::polyline_pattern& rhs) const
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{
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return eq_funcs(lhs.vertices.begin(), lhs.vertices.end(), rhs.vertices.begin())
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&& eq_funcs(lhs.bulges.begin(), lhs.bulges.end(), rhs.bulges.begin());
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}
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};
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} // namespace detail
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