132 lines
4.6 KiB
C++
132 lines
4.6 KiB
C++
#ifndef slic3r_MultiPoint_hpp_
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#define slic3r_MultiPoint_hpp_
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#include "libslic3r.h"
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#include <algorithm>
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#include <vector>
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#include "Line.hpp"
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#include "Point.hpp"
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namespace Slic3r {
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class BoundingBox;
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class BoundingBox3;
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class MultiPoint
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{
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public:
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Points points;
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operator Points() const { return this->points; }
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MultiPoint() {}
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MultiPoint(const MultiPoint &other) : points(other.points) {}
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MultiPoint(MultiPoint &&other) : points(std::move(other.points)) {}
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MultiPoint(std::initializer_list<Point> list) : points(list) {}
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explicit MultiPoint(const Points &_points) : points(_points) {}
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MultiPoint& operator=(const MultiPoint &other) { points = other.points; return *this; }
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MultiPoint& operator=(MultiPoint &&other) { points = std::move(other.points); return *this; }
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void scale(double factor);
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void scale(double factor_x, double factor_y);
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void translate(double x, double y);
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void translate(const Point &vector);
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void rotate(double angle) { this->rotate(cos(angle), sin(angle)); }
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void rotate(double cos_angle, double sin_angle);
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void rotate(double angle, const Point ¢er);
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void reverse() { std::reverse(this->points.begin(), this->points.end()); }
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const Point& first_point() const { return this->points.front(); }
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virtual const Point& last_point() const = 0;
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virtual Lines lines() const = 0;
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size_t size() const { return points.size(); }
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bool empty() const { return points.empty(); }
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double length() const;
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bool is_valid() const { return this->points.size() >= 2; }
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int find_point(const Point &point) const;
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bool has_boundary_point(const Point &point) const;
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int closest_point_index(const Point &point) const {
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int idx = -1;
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if (! this->points.empty()) {
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idx = 0;
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double dist_min = (point - this->points.front()).cast<double>().norm();
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for (int i = 1; i < int(this->points.size()); ++ i) {
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double d = (this->points[i] - point).cast<double>().norm();
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if (d < dist_min) {
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dist_min = d;
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idx = i;
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}
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}
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}
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return idx;
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}
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const Point* closest_point(const Point &point) const { return this->points.empty() ? nullptr : &this->points[this->closest_point_index(point)]; }
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BoundingBox bounding_box() const;
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// Return true if there are exact duplicates.
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bool has_duplicate_points() const;
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// Remove exact duplicates, return true if any duplicate has been removed.
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bool remove_duplicate_points();
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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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bool intersection(const Line& line, Point* intersection) const;
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bool first_intersection(const Line& line, Point* intersection) const;
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static Points _douglas_peucker(const Points &points, const double tolerance);
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static Points visivalingam(const Points& pts, const double& tolerance);
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};
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class MultiPoint3
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{
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public:
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Points3 points;
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void append(const Vec3crd& point) { this->points.push_back(point); }
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void translate(double x, double y);
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void translate(const Point& vector);
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virtual Lines3 lines() const = 0;
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double length() const;
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bool is_valid() const { return this->points.size() >= 2; }
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BoundingBox3 bounding_box() const;
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// Remove exact duplicates, return true if any duplicate has been removed.
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bool remove_duplicate_points();
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};
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extern BoundingBox get_extents(const MultiPoint &mp);
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extern BoundingBox get_extents_rotated(const std::vector<Point> &points, double angle);
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extern BoundingBox get_extents_rotated(const MultiPoint &mp, double angle);
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inline double length(const Points &pts) {
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double total = 0;
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if (! pts.empty()) {
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auto it = pts.begin();
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for (auto it_prev = it ++; it != pts.end(); ++ it, ++ it_prev)
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total += (*it - *it_prev).cast<double>().norm();
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}
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return total;
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}
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inline double area(const Points &polygon) {
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double area = 0.;
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for (size_t i = 0, j = polygon.size() - 1; i < polygon.size(); j = i ++)
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area += double(polygon[i](0) + polygon[j](0)) * double(polygon[i](1) - polygon[j](1));
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return area;
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}
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} // namespace Slic3r
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#endif
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