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Prusa 2.7.2

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sunsets
2024-03-27 14:38:03 +08:00
parent 63daf0c087
commit 2387bc9cdb
203 changed files with 6053 additions and 15634 deletions
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1
src/libslic3r/Arachne/utils/PolygonsPointIndex.hpp
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@@ -156,7 +156,6 @@ struct PathsPointIndexLocator
}
};
using PolygonsPointIndexLocator = PathsPointIndexLocator<Polygons>;
}//namespace Slic3r::Arachne

19
src/libslic3r/Arachne/utils/PolygonsSegmentIndex.hpp
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@@ -27,5 +27,24 @@ public:
} // namespace Slic3r::Arachne
namespace boost::polygon {
template<> struct geometry_concept<Slic3r::Arachne::PolygonsSegmentIndex>
{
typedef segment_concept type;
};
template<> struct segment_traits<Slic3r::Arachne::PolygonsSegmentIndex>
{
typedef coord_t coordinate_type;
typedef Slic3r::Point point_type;
static inline point_type get(const Slic3r::Arachne::PolygonsSegmentIndex &CSegment, direction_1d dir)
{
return dir.to_int() ? CSegment.to() : CSegment.from();
}
};
} // namespace boost::polygon
#endif//UTILS_POLYGONS_SEGMENT_INDEX_H

251
src/libslic3r/Arachne/utils/VoronoiUtils.cpp
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@@ -1,251 +0,0 @@
//Copyright (c) 2021 Ultimaker B.V.
//CuraEngine is released under the terms of the AGPLv3 or higher.
#include <stack>
#include <optional>
#include <boost/log/trivial.hpp>
#include "linearAlg2D.hpp"
#include "VoronoiUtils.hpp"
namespace Slic3r::Arachne
{
Vec2i64 VoronoiUtils::p(const vd_t::vertex_type *node)
{
const double x = node->x();
const double y = node->y();
assert(std::isfinite(x) && std::isfinite(y));
assert(x <= double(std::numeric_limits<int64_t>::max()) && x >= std::numeric_limits<int64_t>::lowest());
assert(y <= double(std::numeric_limits<int64_t>::max()) && y >= std::numeric_limits<int64_t>::lowest());
return {int64_t(x + 0.5 - (x < 0)), int64_t(y + 0.5 - (y < 0))}; // Round to the nearest integer coordinates.
}
Point VoronoiUtils::getSourcePoint(const vd_t::cell_type& cell, const std::vector<Segment>& segments)
{
assert(cell.contains_point());
if(!cell.contains_point())
BOOST_LOG_TRIVIAL(debug) << "Voronoi cell doesn't contain a source point!";
switch (cell.source_category()) {
case boost::polygon::SOURCE_CATEGORY_SINGLE_POINT:
assert(false && "Voronoi diagram is always constructed using segments, so cell.source_category() shouldn't be SOURCE_CATEGORY_SINGLE_POINT!\n");
BOOST_LOG_TRIVIAL(error) << "Voronoi diagram is always constructed using segments, so cell.source_category() shouldn't be SOURCE_CATEGORY_SINGLE_POINT!";
break;
case boost::polygon::SOURCE_CATEGORY_SEGMENT_START_POINT:
assert(cell.source_index() < segments.size());
return segments[cell.source_index()].to();
break;
case boost::polygon::SOURCE_CATEGORY_SEGMENT_END_POINT:
assert(cell.source_index() < segments.size());
return segments[cell.source_index()].from();
break;
default:
assert(false && "getSourcePoint should only be called on point cells!\n");
break;
}
assert(false && "cell.source_category() is equal to an invalid value!\n");
BOOST_LOG_TRIVIAL(error) << "cell.source_category() is equal to an invalid value!";
return {};
}
PolygonsPointIndex VoronoiUtils::getSourcePointIndex(const vd_t::cell_type& cell, const std::vector<Segment>& segments)
{
assert(cell.contains_point());
if(!cell.contains_point())
BOOST_LOG_TRIVIAL(debug) << "Voronoi cell doesn't contain a source point!";
assert(cell.source_category() != boost::polygon::SOURCE_CATEGORY_SINGLE_POINT);
switch (cell.source_category()) {
case boost::polygon::SOURCE_CATEGORY_SEGMENT_START_POINT: {
assert(cell.source_index() < segments.size());
PolygonsPointIndex ret = segments[cell.source_index()];
++ret;
return ret;
break;
}
case boost::polygon::SOURCE_CATEGORY_SEGMENT_END_POINT: {
assert(cell.source_index() < segments.size());
return segments[cell.source_index()];
break;
}
default:
assert(false && "getSourcePoint should only be called on point cells!\n");
break;
}
PolygonsPointIndex ret = segments[cell.source_index()];
return ++ret;
}
const VoronoiUtils::Segment &VoronoiUtils::getSourceSegment(const vd_t::cell_type &cell, const std::vector<Segment> &segments)
{
assert(cell.contains_segment());
if (!cell.contains_segment())
BOOST_LOG_TRIVIAL(debug) << "Voronoi cell doesn't contain a source segment!";
return segments[cell.source_index()];
}
class PointMatrix
{
public:
double matrix[4];
PointMatrix()
{
matrix[0] = 1;
matrix[1] = 0;
matrix[2] = 0;
matrix[3] = 1;
}
PointMatrix(double rotation)
{
rotation = rotation / 180 * M_PI;
matrix[0] = cos(rotation);
matrix[1] = -sin(rotation);
matrix[2] = -matrix[1];
matrix[3] = matrix[0];
}
PointMatrix(const Point p)
{
matrix[0] = p.x();
matrix[1] = p.y();
double f = sqrt((matrix[0] * matrix[0]) + (matrix[1] * matrix[1]));
matrix[0] /= f;
matrix[1] /= f;
matrix[2] = -matrix[1];
matrix[3] = matrix[0];
}
static PointMatrix scale(double s)
{
PointMatrix ret;
ret.matrix[0] = s;
ret.matrix[3] = s;
return ret;
}
Point apply(const Point p) const
{
return Point(coord_t(p.x() * matrix[0] + p.y() * matrix[1]), coord_t(p.x() * matrix[2] + p.y() * matrix[3]));
}
Point unapply(const Point p) const
{
return Point(coord_t(p.x() * matrix[0] + p.y() * matrix[2]), coord_t(p.x() * matrix[1] + p.y() * matrix[3]));
}
};
Points VoronoiUtils::discretizeParabola(const Point& p, const Segment& segment, Point s, Point e, coord_t approximate_step_size, float transitioning_angle)
{
Points discretized;
// x is distance of point projected on the segment ab
// xx is point projected on the segment ab
const Point a = segment.from();
const Point b = segment.to();
const Point ab = b - a;
const Point as = s - a;
const Point ae = e - a;
const coord_t ab_size = ab.cast<int64_t>().norm();
const coord_t sx = as.cast<int64_t>().dot(ab.cast<int64_t>()) / ab_size;
const coord_t ex = ae.cast<int64_t>().dot(ab.cast<int64_t>()) / ab_size;
const coord_t sxex = ex - sx;
assert((as.cast<int64_t>().dot(ab.cast<int64_t>()) / int64_t(ab_size)) <= std::numeric_limits<coord_t>::max());
assert((ae.cast<int64_t>().dot(ab.cast<int64_t>()) / int64_t(ab_size)) <= std::numeric_limits<coord_t>::max());
const Point ap = p - a;
const coord_t px = ap.cast<int64_t>().dot(ab.cast<int64_t>()) / ab_size;
assert((ap.cast<int64_t>().dot(ab.cast<int64_t>()) / int64_t(ab_size)) <= std::numeric_limits<coord_t>::max());
Point pxx;
Line(a, b).distance_to_infinite_squared(p, &pxx);
const Point ppxx = pxx - p;
const coord_t d = ppxx.cast<int64_t>().norm();
const PointMatrix rot = PointMatrix(perp(ppxx));
if (d == 0)
{
discretized.emplace_back(s);
discretized.emplace_back(e);
return discretized;
}
const float marking_bound = atan(transitioning_angle * 0.5);
int64_t msx = - marking_bound * int64_t(d); // projected marking_start
int64_t mex = marking_bound * int64_t(d); // projected marking_end
assert(msx <= std::numeric_limits<coord_t>::max());
assert(double(msx) * double(msx) <= double(std::numeric_limits<int64_t>::max()));
assert(mex <= std::numeric_limits<coord_t>::max());
assert(double(msx) * double(msx) / double(2 * d) + double(d / 2) <= std::numeric_limits<coord_t>::max());
const coord_t marking_start_end_h = msx * msx / (2 * d) + d / 2;
Point marking_start = rot.unapply(Point(coord_t(msx), marking_start_end_h)) + pxx;
Point marking_end = rot.unapply(Point(coord_t(mex), marking_start_end_h)) + pxx;
const int dir = (sx > ex) ? -1 : 1;
if (dir < 0)
{
std::swap(marking_start, marking_end);
std::swap(msx, mex);
}
bool add_marking_start = msx * int64_t(dir) > int64_t(sx - px) * int64_t(dir) && msx * int64_t(dir) < int64_t(ex - px) * int64_t(dir);
bool add_marking_end = mex * int64_t(dir) > int64_t(sx - px) * int64_t(dir) && mex * int64_t(dir) < int64_t(ex - px) * int64_t(dir);
const Point apex = rot.unapply(Point(0, d / 2)) + pxx;
bool add_apex = int64_t(sx - px) * int64_t(dir) < 0 && int64_t(ex - px) * int64_t(dir) > 0;
assert(!(add_marking_start && add_marking_end) || add_apex);
if(add_marking_start && add_marking_end && !add_apex)
{
BOOST_LOG_TRIVIAL(warning) << "Failing to discretize parabola! Must add an apex or one of the endpoints.";
}
const coord_t step_count = static_cast<coord_t>(static_cast<float>(std::abs(ex - sx)) / approximate_step_size + 0.5);
discretized.emplace_back(s);
for (coord_t step = 1; step < step_count; step++)
{
assert(double(sxex) * double(step) <= double(std::numeric_limits<int64_t>::max()));
const int64_t x = int64_t(sx) + int64_t(sxex) * int64_t(step) / int64_t(step_count) - int64_t(px);
assert(double(x) * double(x) <= double(std::numeric_limits<int64_t>::max()));
assert(double(x) * double(x) / double(2 * d) + double(d / 2) <= double(std::numeric_limits<int64_t>::max()));
const int64_t y = int64_t(x) * int64_t(x) / int64_t(2 * d) + int64_t(d / 2);
if (add_marking_start && msx * int64_t(dir) < int64_t(x) * int64_t(dir))
{
discretized.emplace_back(marking_start);
add_marking_start = false;
}
if (add_apex && int64_t(x) * int64_t(dir) > 0)
{
discretized.emplace_back(apex);
add_apex = false; // only add the apex just before the
}
if (add_marking_end && mex * int64_t(dir) < int64_t(x) * int64_t(dir))
{
discretized.emplace_back(marking_end);
add_marking_end = false;
}
assert(x <= std::numeric_limits<coord_t>::max() && x >= std::numeric_limits<coord_t>::lowest());
assert(y <= std::numeric_limits<coord_t>::max() && y >= std::numeric_limits<coord_t>::lowest());
const Point result = rot.unapply(Point(x, y)) + pxx;
discretized.emplace_back(result);
}
if (add_apex)
{
discretized.emplace_back(apex);
}
if (add_marking_end)
{
discretized.emplace_back(marking_end);
}
discretized.emplace_back(e);
return discretized;
}
}//namespace Slic3r::Arachne

47
src/libslic3r/Arachne/utils/VoronoiUtils.hpp
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@@ -1,47 +0,0 @@
//Copyright (c) 2020 Ultimaker B.V.
//CuraEngine is released under the terms of the AGPLv3 or higher.
#ifndef UTILS_VORONOI_UTILS_H
#define UTILS_VORONOI_UTILS_H
#include <vector>
#include <boost/polygon/voronoi.hpp>
#include "PolygonsSegmentIndex.hpp"
namespace Slic3r::Arachne
{
/*!
*/
class VoronoiUtils
{
public:
using Segment = PolygonsSegmentIndex;
using voronoi_data_t = double;
using vd_t = boost::polygon::voronoi_diagram<voronoi_data_t>;
static Point getSourcePoint(const vd_t::cell_type &cell, const std::vector<Segment> &segments);
static const Segment &getSourceSegment(const vd_t::cell_type &cell, const std::vector<Segment> &segments);
static PolygonsPointIndex getSourcePointIndex(const vd_t::cell_type &cell, const std::vector<Segment> &segments);
static Vec2i64 p(const vd_t::vertex_type *node);
/*!
* Discretize a parabola based on (approximate) step size.
* The \p approximate_step_size is measured parallel to the \p source_segment, not along the parabola.
*/
static Points discretizeParabola(const Point &source_point, const Segment &source_segment, Point start, Point end, coord_t approximate_step_size, float transitioning_angle);
static inline bool is_finite(const VoronoiUtils::vd_t::vertex_type &vertex)
{
return std::isfinite(vertex.x()) && std::isfinite(vertex.y());
}
};
} // namespace Slic3r::Arachne
#endif // UTILS_VORONOI_UTILS_H