257 lines
7.8 KiB
C++
257 lines
7.8 KiB
C++
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//
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// Created by ylzha on 2025/2/25.
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//
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//#ifndef DBRIDGE_HPP
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//#define DBRIDGE_HPP
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#ifndef slic3r_Bridge_hpp_
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#define slic3r_Bridge_hpp_
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// 防止头文件被重复包含的预处理器指令
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//#pragma once
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#include "../libslic3r.h"
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//#include <utility>
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//#include <vector>
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//#include <unordered_set>
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#include <boost/geometry.hpp>
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//#include <boost/multiprecision/decimal/decimal.hpp>
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//#include <boost/geometry/geometries/point_xy.hpp>
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//#include <boost/geometry/geometries/segment.hpp>
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//#include <boost/geometry/geometries/polygon.hpp>
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//#include <boost/geometry/geometries/ring.hpp>
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//#include <boost/geometry/geometries/linestring.hpp>
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//#include <boost/functional/hash/hash.hpp>
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#include "FillBase.hpp"
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namespace bg = boost::geometry;
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//#include <SFML/Graphics.hpp>
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namespace Slic3r{
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class Surface;
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//namespace bg = boost::geometry;
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// 定义点类型
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typedef bg::model::d2::point_xy<double> Point_t;
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//定义线段
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typedef bg::model::segment<Point_t> Segment;
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// 定义多边形类型
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typedef bg::model::polygon<Point_t> Polygon_t;
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// 多边形集合
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typedef bg::model::multi_polygon<Polygon_t> MultiPolygon;
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// 定义环类型
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typedef bg::model::ring<Point_t> Ring;
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// 定义折线类型（用于表示直线）
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//typedef bg::model::linestring<Point> Linestring;
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// 定义多边形的外边界和内边界
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struct PolygonBoundaries {
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Ring outerBoundary; // 外边界
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std::vector<Ring> innerBoundaries; // 内边界（可能有多个）
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};
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struct IdIndex {
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size_t id{};
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size_t index{};
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// 定义小于运算符
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bool operator<(const IdIndex& other) const {
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return id < other.id;
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}
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IdIndex(const size_t id, const size_t index) : id(id), index(index) {}
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bool operator==(const IdIndex& ii) const {
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return id == ii.id && index == ii.index;
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}
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};
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//环路径树结构中节点类型
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struct RingNode {
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IdIndex id;
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Ring ring; //当前环
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int orientation{}; //方向 -1 向内 1 向外
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std::vector<RingNode> children; //子节点集
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RingNode* parent; //父节点
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bool isHide{ false }; //在最终路径中是否呈现 false 呈现 true 不呈现
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// 构造函数，方便初始化
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RingNode(const IdIndex id, const Ring& ring, const int orientation = 0)
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: id(id), ring(ring), orientation(orientation), parent(nullptr) {
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}
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// 重载==运算符方便比较
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bool operator==(const RingNode& other) const {
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return id.id == other.id.id && id.index == other.id.index;
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}
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};
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//桥接映射
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struct BridgeMap {
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Point_t from;
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Point_t to;
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Point_t from2;
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Point_t to2;
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IdIndex from_ii;
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IdIndex to_ii;
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BridgeMap(Point_t from, Point_t to, Point_t from2, Point_t to2,IdIndex from_ii, IdIndex to_ii) :
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from(from), to(to), from2(from2), to2(to2),from_ii(from_ii), to_ii(to_ii) { }
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};
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//合并映射
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struct MergeMap {
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IdIndex ii1; //环1
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IdIndex ii2; //环2
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std::vector<IdIndex> nodes; //产生的环集
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// 构造函数
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MergeMap(const IdIndex& i1, const IdIndex& i2, const std::vector<IdIndex>& nodeList)
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: ii1(i1), ii2(i2), nodes(nodeList) {
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}
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};
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//struct PointHash_t {
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// std::size_t operator()(const Point_t& p) const {
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// std::size_t seed = 0;
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// boost::hash_combine(seed, bg::get<0>(p));
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// boost::hash_combine(seed, bg::get<1>(p));
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// return seed;
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// }
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//};
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//
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//struct PointEqual_t {
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// bool operator()(const Point_t& a, const Point_t& b) const {
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// return bg::equals(a, b);
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// }
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//};
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class Bridge : public Fill {
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//public:
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// Bridge(Polygon _polygon, const double o) : offset(o), polygon(std::move(_polygon)) {};
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// ~Bridge() = default;
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public:
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//Slic3r::Fill* clone() const override { return new Bridge(*this); };
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Fill* clone() const override { return new Bridge(*this); };
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//Bridge() {};
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//Bridge(Polygon_t _polygon, const double o) : offset(o), polygon(std::move(_polygon)) {};
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~Bridge() override = default;
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Polylines fill_surface(const Surface* surface, const FillParams& params) override;
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protected:
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/*void _fill_surface_single(
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const FillParams& params,
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unsigned int thickness_layers,
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const std::pair<float, Point>& direction,
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ExPolygon expolygon,
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Polylines& polylines_out) override;*/
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//Polylines fill_surface(const Surface* surface, const FillParams& params) override;
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coord_t _min_spacing;
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coord_t _line_spacing;
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// distance threshold for allowing the horizontal infill lines to be connected into a continuous path
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coord_t _diagonal_distance;
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// only for line infill
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coord_t _line_oscillation;
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private:
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//计算多边形的外边界和内边界
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void computePolygonBoundaries(const Polygon_t& polygon);
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// 判断两个环是否相交（不包括包含关系）
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bool ringsIntersect(const Ring& ring1, const Ring& ring2);
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//获取环偏移后的环（可能为空）
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std::vector<Ring> offsetRing(const Ring& ring, double distance);
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// 查找环非邻边的相交点
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std::vector<Point_t> findNonAdjacentIntersections(const Ring& ring);
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// 将环拆分成多个环
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std::vector<Ring> split(const Ring& ring, const std::vector<Point_t>& intersections);
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// 合并两个环
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std::vector<Ring> merge(const RingNode& ring1, const RingNode& ring2);
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//生成环集
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void generateRings();
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//形成节点
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RingNode formatNode(size_t id, size_t index, const Ring& ring, int orientation);
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void addNode(RingNode& node);
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void removeNode(IdIndex id);
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//查找节点
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RingNode& findNode(IdIndex ii);
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//形成树
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void formatTree();
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// 深度优先搜索遍历树
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void dfs(RingNode& node, std::vector<IdIndex>& visited,size_t& edge);
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//找到多边形环第 N 条边的中心点
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Point_t findCenterPointOnEdge(Ring& ring, size_t N);
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// 在环上按顺时针方向查找距离给定点d的另一个点
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Point_t find_point_at_distance_clockwise(Ring& ring, const Point_t& start_point, double d);
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size_t findLongestEdgeIndex(const Ring& ring);
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//在第N条边上进行内外环桥接，并插入桥接点
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//o_ii 外环IdIndex i_ii 内环IdIndex ring_size内环大小 N边索引
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void handleBridge(IdIndex o_ii, IdIndex i_ii, const size_t ring_size, const size_t N);
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//递归遍历环
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void traverseRing(
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RingNode& node,
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IdIndex parent,
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Point_t& start,
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Point_t& end,
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bool isOutermostLayer //是否最外层
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);
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//输出所有环
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void printRings();
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//sf::VertexArray convertToSFML(const Polygon& poly, const sf::Color& color);
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public:
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//输出树结构
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void printTree();
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//std::vector<Point_t> outputPaths();
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//画路径 SFML顶点数组集
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//std::vector<sf::Vertex> outputPaths();
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//std::vector<sf::VertexArray> convert2vertex();
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//std::vector<sf::VertexArray> verteies;
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//std::vector<sf::VertexArray> convertBridge();
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private:
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size_t maxRid = 1; //最大环类型ID值
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double offset; //偏移距离
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Polygon_t polygon; //2D多边形
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double area_threshold = 4; //面积阈值
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PolygonBoundaries boundaries; //外/内边界
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std::map<size_t, std::vector<RingNode>> ringNodes; //存储不同环类型的节点集合 size_t 环类型id
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std::vector<RingNode> nodeHandles; //当前需进行自交或互交处理的节点集合
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std::map<IdIndex, std::vector<IdIndex>> splitMap; //分裂映射集
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std::vector<MergeMap> mergeMap; //合并映射集
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std::map<IdIndex, std::vector<IdIndex>> offsetMap; //偏移后产生的分裂映射集
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std::vector<BridgeMap> bridges; //桥接映射
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std::vector<Point_t> path; // 路径
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bool isFront{ false };
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size_t sel_edge_index{ 1 }; //选择桥接边的索引
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};
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}; // namespace Slic3r
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//#endif //DBRIDGE_HPP
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#endif // slic3r_Bridge_hpp_
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