Merge branch 'master' of https://github.com/Prusa-Development/PrusaSlicerPrivate into et_transformations
This commit is contained in:
enricoturri1966
commit
f1b4181cd1
@ -29,10 +29,12 @@
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#include <algorithm>
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#include <cmath>
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#include <cassert>
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#include <cstddef>
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#include <cstdlib>
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#include <functional>
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#include <iterator>
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#include <limits>
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#include <list>
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#include <math.h>
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#include <ostream>
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#include <stack>
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@ -663,187 +665,176 @@ static void export_perimeters_to_svg(const std::string &path, const Polygons &co
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// find out if paths touch - at least one point of one path is within limit distance of second path
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bool paths_touch(const ExtrusionPath &path_one, const ExtrusionPath &path_two, double limit_distance)
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{
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AABBTreeLines::LinesDistancer<Line> lines_one{path_one.as_polyline().lines()};
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AABBTreeLines::LinesDistancer<Line> lines_two{path_two.as_polyline().lines()};
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for (size_t pt_idx = 0; pt_idx < path_one.polyline.size(); pt_idx++) {
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if (lines_two.distance_from_lines<false>(path_one.polyline.points[pt_idx]) < limit_distance) { return true; }
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}
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AABBTreeLines::LinesDistancer<Line> lines_one{path_one.as_polyline().lines()};
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for (size_t pt_idx = 0; pt_idx < path_two.polyline.size(); pt_idx++) {
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if (lines_one.distance_from_lines<false>(path_two.polyline.points[pt_idx]) < limit_distance) { return true; }
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}
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return false;
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}
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ExtrusionPaths reconnect_extrusion_paths(const ExtrusionPaths& paths, double limit_distance) {
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if (paths.empty()) return paths;
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Polylines reconnect_polylines(const Polylines &polylines, double limit_distance)
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{
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if (polylines.empty())
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return polylines;
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std::unordered_map<size_t, ExtrusionPath> connected;
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connected.reserve(paths.size());
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for (size_t i = 0; i < paths.size(); i++) {
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if (!paths[i].empty()) {
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connected.emplace(i, paths[i]);
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std::unordered_map<size_t, Polyline> connected;
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connected.reserve(polylines.size());
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for (size_t i = 0; i < polylines.size(); i++) {
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if (!polylines[i].empty()) {
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connected.emplace(i, polylines[i]);
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}
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}
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for (size_t a = 0; a < paths.size(); a++) {
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for (size_t a = 0; a < polylines.size(); a++) {
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if (connected.find(a) == connected.end()) {
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continue;
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}
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ExtrusionPath &base = connected.at(a);
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for (size_t b = a + 1; b < paths.size(); b++) {
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Polyline &base = connected.at(a);
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for (size_t b = a + 1; b < polylines.size(); b++) {
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if (connected.find(b) == connected.end()) {
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continue;
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}
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ExtrusionPath &next = connected.at(b);
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Polyline &next = connected.at(b);
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if ((base.last_point() - next.first_point()).cast<double>().squaredNorm() < limit_distance * limit_distance) {
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base.polyline.append(std::move(next.polyline));
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base.append(std::move(next));
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connected.erase(b);
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} else if ((base.last_point() - next.last_point()).cast<double>().squaredNorm() < limit_distance * limit_distance) {
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base.polyline.points.insert(base.polyline.points.end(), next.polyline.points.rbegin(), next.polyline.points.rend());
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base.points.insert(base.points.end(), next.points.rbegin(), next.points.rend());
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connected.erase(b);
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} else if ((base.first_point() - next.last_point()).cast<double>().squaredNorm() < limit_distance * limit_distance) {
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next.polyline.append(std::move(base.polyline));
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next.append(std::move(base));
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base = std::move(next);
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base.reverse();
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connected.erase(b);
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} else if ((base.first_point() - next.first_point()).cast<double>().squaredNorm() < limit_distance * limit_distance) {
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base.reverse();
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base.polyline.append(std::move(next.polyline));
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base.append(std::move(next));
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base.reverse();
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connected.erase(b);
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}
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}
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}
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ExtrusionPaths result;
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for (auto& ext : connected) {
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Polylines result;
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for (auto &ext : connected) {
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result.push_back(std::move(ext.second));
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}
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return result;
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}
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ExtrusionPaths sort_and_connect_extra_perimeters(const std::vector<ExtrusionPaths> &extra_perims, double extrusion_spacing)
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ExtrusionPaths sort_extra_perimeters(ExtrusionPaths extra_perims, int index_of_first_unanchored, double extrusion_spacing)
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{
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std::vector<ExtrusionPaths> connected_shells;
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connected_shells.reserve(extra_perims.size());
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for (const ExtrusionPaths &ps : extra_perims) {
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// this will also filter away empty paths
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connected_shells.push_back(reconnect_extrusion_paths(ps, 1.0 * extrusion_spacing));
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}
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if (extra_perims.empty()) return {};
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struct Pidx
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{
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size_t shell;
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size_t path;
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bool operator==(const Pidx &rhs) const { return shell == rhs.shell && path == rhs.path; }
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};
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struct PidxHash
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{
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size_t operator()(const Pidx &i) const { return std::hash<size_t>{}(i.shell) ^ std::hash<size_t>{}(i.path); }
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};
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auto get_path = [&](Pidx i) { return connected_shells[i.shell][i.path]; };
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std::vector<std::unordered_map<Pidx, std::unordered_set<Pidx, PidxHash>, PidxHash>> dependencies;
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for (size_t shell = 0; shell < connected_shells.size(); shell++) {
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dependencies.push_back({});
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auto ¤t_shell = dependencies[shell];
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for (size_t path = 0; path < connected_shells[shell].size(); path++) {
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Pidx current_path{shell, path};
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std::unordered_set<Pidx, PidxHash> current_dependencies{};
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if (shell > 0) {
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for (const auto &prev_path : dependencies[shell - 1]) {
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if (paths_touch(get_path(current_path), get_path(prev_path.first), extrusion_spacing * 1.5f)) {
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current_dependencies.insert(prev_path.first);
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};
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std::vector<std::unordered_set<size_t>> dependencies(extra_perims.size());
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for (size_t path_idx = 0; path_idx < extra_perims.size(); path_idx++) {
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for (size_t prev_path_idx = 0; prev_path_idx < path_idx; prev_path_idx++) {
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if (paths_touch(extra_perims[path_idx], extra_perims[prev_path_idx], extrusion_spacing * 1.5f)) {
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dependencies[path_idx].insert(prev_path_idx);
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}
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}
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current_shell[current_path] = current_dependencies;
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}
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}
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Point current_point{};
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for (const ExtrusionPaths &ps : connected_shells) {
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for (const ExtrusionPath &p : ps) {
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if (!p.empty()) {
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current_point = p.first_point();
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goto first_point_found;
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std::vector<bool> processed(extra_perims.size(), false);
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for (size_t path_idx = 0; path_idx < index_of_first_unanchored; path_idx++) {
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processed[path_idx] = true;
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}
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for (size_t i = index_of_first_unanchored; i < extra_perims.size(); i++) {
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bool change = false;
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for (size_t path_idx = index_of_first_unanchored; path_idx < extra_perims.size(); path_idx++) {
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if (processed[path_idx])
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continue;
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auto processed_dep = std::find_if(dependencies[path_idx].begin(), dependencies[path_idx].end(),
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[&](size_t dep) { return processed[dep]; });
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if (processed_dep != dependencies[path_idx].end()) {
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for (auto it = dependencies[path_idx].begin(); it != dependencies[path_idx].end();) {
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if (!processed[*it]) {
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dependencies[*it].insert(path_idx);
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dependencies[path_idx].erase(it++);
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} else {
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++it;
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}
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}
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processed[path_idx] = true;
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change = true;
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}
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first_point_found:
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}
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if (!change) {
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break;
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}
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}
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Point current_point = extra_perims.begin()->first_point();
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ExtrusionPaths sorted_paths{};
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Pidx npidx = Pidx{size_t(-1), 0};
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Pidx next_pidx = npidx;
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size_t null_idx = size_t(-1);
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size_t next_idx = null_idx;
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bool reverse = false;
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while (true) {
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if (next_pidx == npidx) { // find next pidx to print
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if (next_idx == null_idx) { // find next pidx to print
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double dist = std::numeric_limits<double>::max();
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for (size_t shell = 0; shell < dependencies.size(); shell++) {
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for (const auto &p : dependencies[shell]) {
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if (!p.second.empty())
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for (size_t path_idx = 0; path_idx < extra_perims.size(); path_idx++) {
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if (!dependencies[path_idx].empty())
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continue;
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const auto &path = get_path(p.first);
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const auto &path = extra_perims[path_idx];
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double dist_a = (path.first_point() - current_point).cast<double>().squaredNorm();
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if (dist_a < dist) {
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dist = dist_a;
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next_pidx = p.first;
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next_idx = path_idx;
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reverse = false;
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}
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double dist_b = (path.last_point() - current_point).cast<double>().squaredNorm();
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if (dist_b < dist) {
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dist = dist_b;
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next_pidx = p.first;
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next_idx = path_idx;
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reverse = true;
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}
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}
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}
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if (next_pidx == npidx) {
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if (next_idx == null_idx) {
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break;
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}
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} else {
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// we have valid next_pidx, add it to the sorted paths, update dependencies, update current point and potentialy set new next_pidx
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ExtrusionPath path = get_path(next_pidx);
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// we have valid next_idx, add it to the sorted paths, update dependencies, update current point and potentialy set new next_idx
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ExtrusionPath path = extra_perims[next_idx];
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if (reverse) {
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path.reverse();
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}
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sorted_paths.push_back(path);
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assert(dependencies[next_idx].empty());
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dependencies[next_idx].insert(null_idx);
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current_point = sorted_paths.back().last_point();
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if (next_pidx.shell < dependencies.size() - 1) {
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for (auto &p : dependencies[next_pidx.shell + 1]) {
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p.second.erase(next_pidx);
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for (size_t path_idx = 0; path_idx < extra_perims.size(); path_idx++) {
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dependencies[path_idx].erase(next_idx);
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}
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}
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dependencies[next_pidx.shell].erase(next_pidx);
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// check current and next shell for next pidx
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double dist = std::numeric_limits<double>::max();
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size_t current_shell = next_pidx.shell;
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next_pidx = npidx;
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for (size_t shell = current_shell; shell < std::min(current_shell + 2, dependencies.size()); shell++) {
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for (const auto &p : dependencies[shell]) {
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if (!p.second.empty())
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next_idx = null_idx;
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for (size_t path_idx = next_idx + 1; path_idx < extra_perims.size(); path_idx++) {
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if (!dependencies[path_idx].empty()) {
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continue;
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const ExtrusionPath &next_path = get_path(p.first);
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}
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const ExtrusionPath &next_path = extra_perims[path_idx];
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double dist_a = (next_path.first_point() - current_point).cast<double>().squaredNorm();
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if (dist_a < dist) {
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dist = dist_a;
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next_pidx = p.first;
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next_idx = path_idx;
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reverse = false;
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}
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double dist_b = (next_path.last_point() - current_point).cast<double>().squaredNorm();
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if (dist_b < dist) {
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dist = dist_b;
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next_pidx = p.first;
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next_idx = path_idx;
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reverse = true;
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}
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}
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}
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if (dist > scaled(5.0)) {
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next_pidx = npidx;
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next_idx = null_idx;
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}
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}
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}
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@ -877,58 +868,24 @@ first_point_found:
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// Polygons filled by those clipped perimeters
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std::tuple<std::vector<ExtrusionPaths>, Polygons> generate_extra_perimeters_over_overhangs(ExPolygons infill_area,
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const Polygons &lower_slices_polygons,
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int perimeter_count,
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const Flow &overhang_flow,
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double scaled_resolution,
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const PrintObjectConfig &object_config,
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const PrintConfig &print_config)
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{
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coord_t anchors_size = scale_(EXTERNAL_INFILL_MARGIN);
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coord_t anchors_size = std::min(coord_t(scale_(EXTERNAL_INFILL_MARGIN)), overhang_flow.scaled_spacing() * (perimeter_count + 1));
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BoundingBox infill_area_bb = get_extents(infill_area).inflated(SCALED_EPSILON);
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Polygons optimized_lower_slices = ClipperUtils::clip_clipper_polygons_with_subject_bbox(lower_slices_polygons, infill_area_bb);
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Polygons overhangs = diff(infill_area, optimized_lower_slices);
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if (overhangs.empty()) { return {}; }
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AABBTreeLines::LinesDistancer<Line> lower_layer_aabb_tree{to_lines(optimized_lower_slices)};
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Polygons anchors = intersection(infill_area, optimized_lower_slices);
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Polygons inset_anchors; // anchored area inset by the anchor length
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{
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std::vector<double> deltas{anchors_size * 0.15 + 0.5 * overhang_flow.scaled_spacing(),
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anchors_size * 0.33 + 0.5 * overhang_flow.scaled_spacing(),
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anchors_size * 0.66 + 0.5 * overhang_flow.scaled_spacing(), anchors_size * 1.00};
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std::vector<Polygons> anchor_areas_w_delta_anchor_size{};
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for (double delta : deltas) {
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// for each delta, store anchors without the delta region around overhangs
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anchor_areas_w_delta_anchor_size.push_back(diff(anchors, expand(overhangs, delta, EXTRA_PERIMETER_OFFSET_PARAMETERS)));
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}
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for (size_t i = 0; i < anchor_areas_w_delta_anchor_size.size() - 1; i++) {
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// Then, clip off each anchor area by the next area expanded back to original size, so that this smaller anchor region is only where larger wouldnt fit
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anchor_areas_w_delta_anchor_size[i] = diff(anchor_areas_w_delta_anchor_size[i], expand(anchor_areas_w_delta_anchor_size[i + 1],
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deltas[i + 1], EXTRA_PERIMETER_OFFSET_PARAMETERS));
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}
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for (size_t i = 0; i < anchor_areas_w_delta_anchor_size.size(); i++) {
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inset_anchors = union_(inset_anchors, anchor_areas_w_delta_anchor_size[i]);
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}
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inset_anchors = expand(inset_anchors, 0.1*overhang_flow.scaled_width());
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#ifdef EXTRA_PERIM_DEBUG_FILES
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{
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std::vector<std::string> colors = {"blue", "purple", "orange", "red"};
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BoundingBox bbox = get_extents(anchors);
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bbox.offset(scale_(1.));
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::Slic3r::SVG svg(debug_out_path("anchored").c_str(), bbox);
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for (const Line &line : to_lines(inset_anchors)) svg.draw(line, "green", scale_(0.2));
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for (size_t i = 0; i < anchor_areas_w_delta_anchor_size.size(); i++) {
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for (const Line &line : to_lines(anchor_areas_w_delta_anchor_size[i])) svg.draw(line, colors[i], scale_(0.1));
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}
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svg.Close();
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}
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#endif
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}
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Polygons inset_anchors = diff(anchors,
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expand(overhangs, anchors_size + 0.1 * overhang_flow.scaled_width(), EXTRA_PERIMETER_OFFSET_PARAMETERS));
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Polygons inset_overhang_area = diff(infill_area, inset_anchors);
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#ifdef EXTRA_PERIM_DEBUG_FILES
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@ -944,7 +901,7 @@ std::tuple<std::vector<ExtrusionPaths>, Polygons> generate_extra_perimeters_over
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Polygons inset_overhang_area_left_unfilled;
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std::vector<std::vector<ExtrusionPaths>> extra_perims; // overhang region -> shell -> shell parts
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std::vector<ExtrusionPaths> extra_perims; // overhang region -> extrusion paths
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for (const ExPolygon &overhang : union_ex(to_expolygons(inset_overhang_area))) {
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Polygons overhang_to_cover = to_polygons(overhang);
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Polygons expanded_overhang_to_cover = expand(overhang_to_cover, 1.1 * overhang_flow.scaled_spacing());
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@ -956,9 +913,7 @@ std::tuple<std::vector<ExtrusionPaths>, Polygons> generate_extra_perimeters_over
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overhang_to_cover.end());
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continue;
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}
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extra_perims.emplace_back();
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std::vector<ExtrusionPaths> &overhang_region = extra_perims.back();
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ExtrusionPaths &overhang_region = extra_perims.emplace_back();
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Polygons anchoring = intersection(expanded_overhang_to_cover, inset_anchors);
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Polygons perimeter_polygon = offset(union_(expand(overhang_to_cover, 0.1 * overhang_flow.scaled_spacing()), anchoring),
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@ -1004,9 +959,9 @@ std::tuple<std::vector<ExtrusionPaths>, Polygons> generate_extra_perimeters_over
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if (perimeter_polygon.empty()) { // fill possible gaps of single extrusion width
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Polygons shrinked = intersection(offset(prev, -0.3 * overhang_flow.scaled_spacing()), expanded_overhang_to_cover);
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if (!shrinked.empty()) {
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overhang_region.emplace_back();
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extrusion_paths_append(overhang_region.back(), perimeter, ExtrusionRole::OverhangPerimeter, overhang_flow.mm3_per_mm(),
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overhang_flow.width(), overhang_flow.height());
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extrusion_paths_append(overhang_region, reconnect_polylines(perimeter, overhang_flow.scaled_spacing()),
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ExtrusionRole::OverhangPerimeter, overhang_flow.mm3_per_mm(), overhang_flow.width(),
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overhang_flow.height());
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}
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Polylines fills;
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@ -1017,15 +972,15 @@ std::tuple<std::vector<ExtrusionPaths>, Polygons> generate_extra_perimeters_over
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}
|
||||
if (!fills.empty()) {
|
||||
fills = intersection_pl(fills, shrinked_overhang_to_cover);
|
||||
overhang_region.emplace_back();
|
||||
extrusion_paths_append(overhang_region.back(), fills, ExtrusionRole::OverhangPerimeter, overhang_flow.mm3_per_mm(),
|
||||
overhang_flow.width(), overhang_flow.height());
|
||||
extrusion_paths_append(overhang_region, reconnect_polylines(fills, overhang_flow.scaled_spacing()),
|
||||
ExtrusionRole::OverhangPerimeter, overhang_flow.mm3_per_mm(), overhang_flow.width(),
|
||||
overhang_flow.height());
|
||||
}
|
||||
break;
|
||||
} else {
|
||||
overhang_region.emplace_back();
|
||||
extrusion_paths_append(overhang_region.back(), perimeter, ExtrusionRole::OverhangPerimeter, overhang_flow.mm3_per_mm(),
|
||||
overhang_flow.width(), overhang_flow.height());
|
||||
extrusion_paths_append(overhang_region, reconnect_polylines(perimeter, overhang_flow.scaled_spacing()),
|
||||
ExtrusionRole::OverhangPerimeter, overhang_flow.mm3_per_mm(), overhang_flow.width(),
|
||||
overhang_flow.height());
|
||||
}
|
||||
|
||||
if (intersection(perimeter_polygon, real_overhang).empty()) { continuation_loops--; }
|
||||
@ -1059,14 +1014,21 @@ std::tuple<std::vector<ExtrusionPaths>, Polygons> generate_extra_perimeters_over
|
||||
for (const Line &line : to_lines(inset_overhang_area_left_unfilled)) svg.draw(line, "red", scale_(0.05));
|
||||
svg.Close();
|
||||
#endif
|
||||
overhang_region.erase(std::remove_if(overhang_region.begin(), overhang_region.end(),
|
||||
[](const ExtrusionPath &p) { return p.empty(); }),
|
||||
overhang_region.end());
|
||||
|
||||
std::reverse(overhang_region.begin(), overhang_region.end()); // reverse the order, It shall be printed from inside out
|
||||
if (!overhang_region.empty()) {
|
||||
auto is_anchored = [&lower_layer_aabb_tree](const ExtrusionPath &path) {
|
||||
return lower_layer_aabb_tree.distance_from_lines<true>(path.first_point()) <= 0 ||
|
||||
lower_layer_aabb_tree.distance_from_lines<true>(path.last_point()) <= 0;
|
||||
};
|
||||
std::reverse(overhang_region.begin(), overhang_region.end());
|
||||
auto first_unanchored = std::stable_partition(overhang_region.begin(), overhang_region.end(), is_anchored);
|
||||
int index_of_first_unanchored = first_unanchored - overhang_region.begin();
|
||||
overhang_region = sort_extra_perimeters(overhang_region, index_of_first_unanchored, overhang_flow.scaled_spacing());
|
||||
}
|
||||
}
|
||||
|
||||
std::vector<ExtrusionPaths> result{};
|
||||
for (const std::vector<ExtrusionPaths> &paths : extra_perims) {
|
||||
result.push_back(sort_and_connect_extra_perimeters(paths, overhang_flow.scaled_spacing()));
|
||||
}
|
||||
|
||||
#ifdef EXTRA_PERIM_DEBUG_FILES
|
||||
@ -1081,7 +1043,7 @@ std::tuple<std::vector<ExtrusionPaths>, Polygons> generate_extra_perimeters_over
|
||||
|
||||
inset_overhang_area_left_unfilled = union_(inset_overhang_area_left_unfilled);
|
||||
|
||||
return {result, diff(inset_overhang_area, inset_overhang_area_left_unfilled)};
|
||||
return {extra_perims, diff(inset_overhang_area, inset_overhang_area_left_unfilled)};
|
||||
}
|
||||
|
||||
// Thanks, Cura developers, for implementing an algorithm for generating perimeters with variable width (Arachne) that is based on the paper
|
||||
@ -1315,6 +1277,7 @@ void PerimeterGenerator::process_arachne(
|
||||
// Generate extra perimeters on overhang areas, and cut them to these parts only, to save print time and material
|
||||
auto [extra_perimeters, filled_area] = generate_extra_perimeters_over_overhangs(infill_areas,
|
||||
lower_slices_polygons_cache,
|
||||
loop_number + 1,
|
||||
params.overhang_flow, params.scaled_resolution,
|
||||
params.object_config, params.print_config);
|
||||
if (!extra_perimeters.empty()) {
|
||||
@ -1609,6 +1572,7 @@ void PerimeterGenerator::process_classic(
|
||||
// Generate extra perimeters on overhang areas, and cut them to these parts only, to save print time and material
|
||||
auto [extra_perimeters, filled_area] = generate_extra_perimeters_over_overhangs(infill_areas,
|
||||
lower_slices_polygons_cache,
|
||||
loop_number + 1,
|
||||
params.overhang_flow, params.scaled_resolution,
|
||||
params.object_config, params.print_config);
|
||||
if (!extra_perimeters.empty()) {
|
||||
|
||||
@ -5621,6 +5621,7 @@ bool Plater::preview_zip_archive(const boost::filesystem::path& archive_path)
|
||||
close_zip_reader(&archive);
|
||||
throw Slic3r::FileIOError(e.what());
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user