331c187b39
PolylineCollection.cpp/hpp was removed, use Polylines instead. Various first_point() / last_point() now return references, not copies.
170 lines
5.1 KiB
C++
170 lines
5.1 KiB
C++
#ifndef slic3r_Polyline_hpp_
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#define slic3r_Polyline_hpp_
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#include "libslic3r.h"
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#include "Line.hpp"
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#include "MultiPoint.hpp"
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#include <string>
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#include <vector>
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namespace Slic3r {
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class Polyline;
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class ThickPolyline;
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typedef std::vector<Polyline> Polylines;
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typedef std::vector<ThickPolyline> ThickPolylines;
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class Polyline : public MultiPoint {
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public:
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Polyline() {};
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Polyline(const Polyline &other) : MultiPoint(other.points) {}
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Polyline(Polyline &&other) : MultiPoint(std::move(other.points)) {}
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Polyline(std::initializer_list<Point> list) : MultiPoint(list) {}
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explicit Polyline(const Point &p1, const Point &p2) { points.reserve(2); points.emplace_back(p1); points.emplace_back(p2); }
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explicit Polyline(const Points &points) : MultiPoint(points) {}
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explicit Polyline(Points &&points) : MultiPoint(std::move(points)) {}
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Polyline& operator=(const Polyline &other) { points = other.points; return *this; }
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Polyline& operator=(Polyline &&other) { points = std::move(other.points); return *this; }
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static Polyline new_scale(const std::vector<Vec2d> &points) {
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Polyline pl;
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pl.points.reserve(points.size());
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for (const Vec2d &pt : points)
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pl.points.emplace_back(Point::new_scale(pt(0), pt(1)));
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return pl;
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}
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void append(const Point &point) { this->points.push_back(point); }
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void append(const Points &src) { this->append(src.begin(), src.end()); }
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void append(const Points::const_iterator &begin, const Points::const_iterator &end) { this->points.insert(this->points.end(), begin, end); }
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void append(Points &&src)
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{
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if (this->points.empty()) {
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this->points = std::move(src);
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} else {
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this->points.insert(this->points.end(), src.begin(), src.end());
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src.clear();
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}
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}
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void append(const Polyline &src)
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{
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points.insert(points.end(), src.points.begin(), src.points.end());
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}
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void append(Polyline &&src)
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{
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if (this->points.empty()) {
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this->points = std::move(src.points);
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} else {
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this->points.insert(this->points.end(), src.points.begin(), src.points.end());
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src.points.clear();
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}
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}
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operator Polylines() const;
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operator Line() const;
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const Point& last_point() const override { return this->points.back(); }
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const Point& leftmost_point() const;
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virtual Lines lines() const;
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void clip_end(double distance);
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void clip_start(double distance);
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void extend_end(double distance);
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void extend_start(double distance);
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Points equally_spaced_points(double distance) const;
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void simplify(double tolerance);
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template <class T> void simplify_by_visibility(const T &area);
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void split_at(const Point &point, Polyline* p1, Polyline* p2) const;
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bool is_straight() const;
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};
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// Don't use this class in production code, it is used exclusively by the Perl binding for unit tests!
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#ifdef PERL_UCHAR_MIN
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class PolylineCollection
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{
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public:
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Polylines polylines;
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};
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#endif /* PERL_UCHAR_MIN */
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extern BoundingBox get_extents(const Polyline &polyline);
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extern BoundingBox get_extents(const Polylines &polylines);
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inline double total_length(const Polylines &polylines) {
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double total = 0;
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for (const Polyline &pl : polylines)
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total += pl.length();
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return total;
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}
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inline Lines to_lines(const Polyline &poly)
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{
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Lines lines;
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if (poly.points.size() >= 2) {
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lines.reserve(poly.points.size() - 1);
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for (Points::const_iterator it = poly.points.begin(); it != poly.points.end()-1; ++it)
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lines.push_back(Line(*it, *(it + 1)));
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}
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return lines;
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}
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inline Lines to_lines(const Polylines &polys)
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{
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size_t n_lines = 0;
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for (size_t i = 0; i < polys.size(); ++ i)
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if (polys[i].points.size() > 1)
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n_lines += polys[i].points.size() - 1;
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Lines lines;
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lines.reserve(n_lines);
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for (size_t i = 0; i < polys.size(); ++ i) {
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const Polyline &poly = polys[i];
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for (Points::const_iterator it = poly.points.begin(); it != poly.points.end()-1; ++it)
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lines.push_back(Line(*it, *(it + 1)));
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}
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return lines;
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}
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inline void polylines_append(Polylines &dst, const Polylines &src)
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{
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dst.insert(dst.end(), src.begin(), src.end());
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}
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inline void polylines_append(Polylines &dst, Polylines &&src)
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{
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if (dst.empty()) {
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dst = std::move(src);
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} else {
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std::move(std::begin(src), std::end(src), std::back_inserter(dst));
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src.clear();
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}
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}
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const Point& leftmost_point(const Polylines &polylines);
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bool remove_degenerate(Polylines &polylines);
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class ThickPolyline : public Polyline {
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public:
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ThickPolyline() : endpoints(std::make_pair(false, false)) {}
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ThickLines thicklines() const;
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void reverse() {
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Polyline::reverse();
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std::reverse(this->width.begin(), this->width.end());
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std::swap(this->endpoints.first, this->endpoints.second);
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}
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std::vector<coordf_t> width;
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std::pair<bool,bool> endpoints;
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};
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class Polyline3 : public MultiPoint3
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{
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public:
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virtual Lines3 lines() const;
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};
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typedef std::vector<Polyline3> Polylines3;
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}
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#endif
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