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253 lines
12 KiB
C++
253 lines
12 KiB
C++
#ifndef slic3r_BoundingBox_hpp_
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#define slic3r_BoundingBox_hpp_
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#include "libslic3r.h"
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#include "Exception.hpp"
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#include "Point.hpp"
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#include "Polygon.hpp"
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namespace Slic3r {
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template <class PointClass>
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class BoundingBoxBase
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{
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public:
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PointClass min;
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PointClass max;
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bool defined;
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BoundingBoxBase() : min(PointClass::Zero()), max(PointClass::Zero()), defined(false) {}
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BoundingBoxBase(const PointClass &pmin, const PointClass &pmax) :
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min(pmin), max(pmax), defined(pmin(0) < pmax(0) && pmin(1) < pmax(1)) {}
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BoundingBoxBase(const PointClass &p1, const PointClass &p2, const PointClass &p3) :
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min(p1), max(p1), defined(false) { merge(p2); merge(p3); }
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template<class It, class = IteratorOnly<It> >
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BoundingBoxBase(It from, It to) : min(PointClass::Zero()), max(PointClass::Zero())
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{
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if (from == to) {
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this->defined = false;
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// throw Slic3r::InvalidArgument("Empty point set supplied to BoundingBoxBase constructor");
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} else {
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auto it = from;
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this->min = it->template cast<typename PointClass::Scalar>();
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this->max = this->min;
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for (++ it; it != to; ++ it) {
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auto vec = it->template cast<typename PointClass::Scalar>();
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this->min = this->min.cwiseMin(vec);
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this->max = this->max.cwiseMax(vec);
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}
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this->defined = (this->min(0) < this->max(0)) && (this->min(1) < this->max(1));
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}
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}
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BoundingBoxBase(const std::vector<PointClass> &points)
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: BoundingBoxBase(points.begin(), points.end())
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{}
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void reset() { this->defined = false; this->min = PointClass::Zero(); this->max = PointClass::Zero(); }
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void merge(const PointClass &point);
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void merge(const std::vector<PointClass> &points);
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void merge(const BoundingBoxBase<PointClass> &bb);
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void scale(double factor);
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PointClass size() const;
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double radius() const;
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void translate(coordf_t x, coordf_t y) { assert(this->defined); PointClass v(x, y); this->min += v; this->max += v; }
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void translate(const Vec2d &v) { this->min += v; this->max += v; }
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void offset(coordf_t delta);
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BoundingBoxBase<PointClass> inflated(coordf_t delta) const throw() { BoundingBoxBase<PointClass> out(*this); out.offset(delta); return out; }
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PointClass center() const;
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bool contains(const PointClass &point) const {
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return point(0) >= this->min(0) && point(0) <= this->max(0)
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&& point(1) >= this->min(1) && point(1) <= this->max(1);
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}
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bool contains(const BoundingBoxBase<PointClass> &other) const {
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return contains(other.min) && contains(other.max);
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}
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bool overlap(const BoundingBoxBase<PointClass> &other) const {
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return ! (this->max(0) < other.min(0) || this->min(0) > other.max(0) ||
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this->max(1) < other.min(1) || this->min(1) > other.max(1));
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}
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bool operator==(const BoundingBoxBase<PointClass> &rhs) { return this->min == rhs.min && this->max == rhs.max; }
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bool operator!=(const BoundingBoxBase<PointClass> &rhs) { return ! (*this == rhs); }
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};
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template <class PointClass>
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class BoundingBox3Base : public BoundingBoxBase<PointClass>
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{
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public:
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BoundingBox3Base() : BoundingBoxBase<PointClass>() {}
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BoundingBox3Base(const PointClass &pmin, const PointClass &pmax) :
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BoundingBoxBase<PointClass>(pmin, pmax)
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{ if (pmin(2) >= pmax(2)) BoundingBoxBase<PointClass>::defined = false; }
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BoundingBox3Base(const PointClass &p1, const PointClass &p2, const PointClass &p3) :
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BoundingBoxBase<PointClass>(p1, p1) { merge(p2); merge(p3); }
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template<class It, class = IteratorOnly<It> > BoundingBox3Base(It from, It to)
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{
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if (from == to)
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throw Slic3r::InvalidArgument("Empty point set supplied to BoundingBox3Base constructor");
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auto it = from;
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this->min = it->template cast<typename PointClass::Scalar>();
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this->max = this->min;
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for (++ it; it != to; ++ it) {
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auto vec = it->template cast<typename PointClass::Scalar>();
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this->min = this->min.cwiseMin(vec);
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this->max = this->max.cwiseMax(vec);
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}
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this->defined = (this->min(0) < this->max(0)) && (this->min(1) < this->max(1)) && (this->min(2) < this->max(2));
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}
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BoundingBox3Base(const std::vector<PointClass> &points)
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: BoundingBox3Base(points.begin(), points.end())
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{}
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void merge(const PointClass &point);
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void merge(const std::vector<PointClass> &points);
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void merge(const BoundingBox3Base<PointClass> &bb);
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PointClass size() const;
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double radius() const;
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void translate(coordf_t x, coordf_t y, coordf_t z) { assert(this->defined); PointClass v(x, y, z); this->min += v; this->max += v; }
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void translate(const Vec3d &v) { this->min += v; this->max += v; }
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void offset(coordf_t delta);
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BoundingBoxBase<PointClass> inflated(coordf_t delta) const throw() { BoundingBoxBase<PointClass> out(*this); out.offset(delta); return out; }
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PointClass center() const;
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coordf_t max_size() const;
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bool contains(const PointClass &point) const {
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return BoundingBoxBase<PointClass>::contains(point) && point(2) >= this->min(2) && point(2) <= this->max(2);
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}
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bool contains(const BoundingBox3Base<PointClass>& other) const {
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return contains(other.min) && contains(other.max);
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}
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bool intersects(const BoundingBox3Base<PointClass>& other) const {
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return (this->min(0) < other.max(0)) && (this->max(0) > other.min(0)) && (this->min(1) < other.max(1)) && (this->max(1) > other.min(1)) && (this->min(2) < other.max(2)) && (this->max(2) > other.min(2));
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}
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};
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// Will prevent warnings caused by non existing definition of template in hpp
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extern template void BoundingBoxBase<Point>::scale(double factor);
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extern template void BoundingBoxBase<Vec2d>::scale(double factor);
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extern template void BoundingBoxBase<Vec3d>::scale(double factor);
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extern template void BoundingBoxBase<Point>::offset(coordf_t delta);
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extern template void BoundingBoxBase<Vec2d>::offset(coordf_t delta);
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extern template void BoundingBoxBase<Point>::merge(const Point &point);
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extern template void BoundingBoxBase<Vec2f>::merge(const Vec2f &point);
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extern template void BoundingBoxBase<Vec2d>::merge(const Vec2d &point);
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extern template void BoundingBoxBase<Point>::merge(const Points &points);
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extern template void BoundingBoxBase<Vec2d>::merge(const Pointfs &points);
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extern template void BoundingBoxBase<Point>::merge(const BoundingBoxBase<Point> &bb);
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extern template void BoundingBoxBase<Vec2f>::merge(const BoundingBoxBase<Vec2f> &bb);
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extern template void BoundingBoxBase<Vec2d>::merge(const BoundingBoxBase<Vec2d> &bb);
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extern template Point BoundingBoxBase<Point>::size() const;
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extern template Vec2f BoundingBoxBase<Vec2f>::size() const;
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extern template Vec2d BoundingBoxBase<Vec2d>::size() const;
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extern template double BoundingBoxBase<Point>::radius() const;
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extern template double BoundingBoxBase<Vec2d>::radius() const;
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extern template Point BoundingBoxBase<Point>::center() const;
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extern template Vec2f BoundingBoxBase<Vec2f>::center() const;
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extern template Vec2d BoundingBoxBase<Vec2d>::center() const;
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extern template void BoundingBox3Base<Vec3f>::merge(const Vec3f &point);
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extern template void BoundingBox3Base<Vec3d>::merge(const Vec3d &point);
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extern template void BoundingBox3Base<Vec3d>::merge(const Pointf3s &points);
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extern template void BoundingBox3Base<Vec3d>::merge(const BoundingBox3Base<Vec3d> &bb);
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extern template Vec3f BoundingBox3Base<Vec3f>::size() const;
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extern template Vec3d BoundingBox3Base<Vec3d>::size() const;
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extern template double BoundingBox3Base<Vec3d>::radius() const;
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extern template void BoundingBox3Base<Vec3d>::offset(coordf_t delta);
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extern template Vec3f BoundingBox3Base<Vec3f>::center() const;
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extern template Vec3d BoundingBox3Base<Vec3d>::center() const;
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extern template coordf_t BoundingBox3Base<Vec3f>::max_size() const;
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extern template coordf_t BoundingBox3Base<Vec3d>::max_size() const;
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class BoundingBox : public BoundingBoxBase<Point>
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{
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public:
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void polygon(Polygon* polygon) const;
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Polygon polygon() const;
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BoundingBox rotated(double angle) const;
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BoundingBox rotated(double angle, const Point ¢er) const;
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void rotate(double angle) { (*this) = this->rotated(angle); }
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void rotate(double angle, const Point ¢er) { (*this) = this->rotated(angle, center); }
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// Align the min corner to a grid of cell_size x cell_size cells,
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// to encompass the original bounding box.
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void align_to_grid(const coord_t cell_size);
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BoundingBox() : BoundingBoxBase<Point>() {}
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BoundingBox(const Point &pmin, const Point &pmax) : BoundingBoxBase<Point>(pmin, pmax) {}
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BoundingBox(const Points &points) : BoundingBoxBase<Point>(points) {}
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BoundingBox inflated(coordf_t delta) const throw() { BoundingBox out(*this); out.offset(delta); return out; }
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friend BoundingBox get_extents_rotated(const Points &points, double angle);
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};
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class BoundingBox3 : public BoundingBox3Base<Vec3crd>
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{
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public:
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BoundingBox3() : BoundingBox3Base<Vec3crd>() {}
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BoundingBox3(const Vec3crd &pmin, const Vec3crd &pmax) : BoundingBox3Base<Vec3crd>(pmin, pmax) {}
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BoundingBox3(const Points3& points) : BoundingBox3Base<Vec3crd>(points) {}
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};
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class BoundingBoxf : public BoundingBoxBase<Vec2d>
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{
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public:
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BoundingBoxf() : BoundingBoxBase<Vec2d>() {}
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BoundingBoxf(const Vec2d &pmin, const Vec2d &pmax) : BoundingBoxBase<Vec2d>(pmin, pmax) {}
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BoundingBoxf(const std::vector<Vec2d> &points) : BoundingBoxBase<Vec2d>(points) {}
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};
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class BoundingBoxf3 : public BoundingBox3Base<Vec3d>
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{
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public:
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using BoundingBox3Base::BoundingBox3Base;
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BoundingBoxf3 transformed(const Transform3d& matrix) const;
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};
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template<typename VT>
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inline bool empty(const BoundingBoxBase<VT> &bb)
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{
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return ! bb.defined || bb.min(0) >= bb.max(0) || bb.min(1) >= bb.max(1);
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}
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template<typename VT>
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inline bool empty(const BoundingBox3Base<VT> &bb)
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{
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return ! bb.defined || bb.min(0) >= bb.max(0) || bb.min(1) >= bb.max(1) || bb.min(2) >= bb.max(2);
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}
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inline BoundingBox scaled(const BoundingBoxf &bb) { return {scaled(bb.min), scaled(bb.max)}; }
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inline BoundingBox3 scaled(const BoundingBoxf3 &bb) { return {scaled(bb.min), scaled(bb.max)}; }
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inline BoundingBoxf unscaled(const BoundingBox &bb) { return {unscaled(bb.min), unscaled(bb.max)}; }
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inline BoundingBoxf3 unscaled(const BoundingBox3 &bb) { return {unscaled(bb.min), unscaled(bb.max)}; }
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template<class Tout, class Tin>
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auto cast(const BoundingBoxBase<Tin> &b)
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{
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return BoundingBoxBase<Vec<3, Tout>>{b.min.template cast<Tout>(),
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b.max.template cast<Tout>()};
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}
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template<class Tout, class Tin>
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auto cast(const BoundingBox3Base<Tin> &b)
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{
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return BoundingBox3Base<Vec<3, Tout>>{b.min.template cast<Tout>(),
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b.max.template cast<Tout>()};
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}
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} // namespace Slic3r
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// Serialization through the Cereal library
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namespace cereal {
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template<class Archive> void serialize(Archive& archive, Slic3r::BoundingBox &bb) { archive(bb.min, bb.max, bb.defined); }
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template<class Archive> void serialize(Archive& archive, Slic3r::BoundingBox3 &bb) { archive(bb.min, bb.max, bb.defined); }
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template<class Archive> void serialize(Archive& archive, Slic3r::BoundingBoxf &bb) { archive(bb.min, bb.max, bb.defined); }
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template<class Archive> void serialize(Archive& archive, Slic3r::BoundingBoxf3 &bb) { archive(bb.min, bb.max, bb.defined); }
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}
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#endif
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