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PrusaSlicer/xs/src/libnest2d/examples/main.cpp

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#include <iostream>
#include <string>
#include <fstream>
//#define DEBUG_EXPORT_NFP
#include <libnest2d.h>
#include "tests/printer_parts.h"
#include "tools/benchmark.h"
#include "tools/svgtools.hpp"
//#include "tools/libnfpglue.hpp"
using namespace libnest2d;
using ItemGroup = std::vector<std::reference_wrapper<Item>>;
std::vector<Item>& _parts(std::vector<Item>& ret, const TestData& data)
{
if(ret.empty()) {
ret.reserve(data.size());
for(auto& inp : data)
ret.emplace_back(inp);
}
return ret;
}
std::vector<Item>& prusaParts() {
static std::vector<Item> ret;
return _parts(ret, PRINTER_PART_POLYGONS);
}
std::vector<Item>& stegoParts() {
static std::vector<Item> ret;
return _parts(ret, STEGOSAUR_POLYGONS);
}
std::vector<Item>& prusaExParts() {
static std::vector<Item> ret;
if(ret.empty()) {
ret.reserve(PRINTER_PART_POLYGONS_EX.size());
for(auto& p : PRINTER_PART_POLYGONS_EX) {
ret.emplace_back(p.Contour, p.Holes);
}
}
return ret;
}
void arrangeRectangles() {
using namespace libnest2d;
const int SCALE = 1000000;
// const int SCALE = 1;
std::vector<Rectangle> rects = {
{80*SCALE, 80*SCALE},
{60*SCALE, 90*SCALE},
{70*SCALE, 30*SCALE},
{80*SCALE, 60*SCALE},
{60*SCALE, 60*SCALE},
{60*SCALE, 40*SCALE},
{40*SCALE, 40*SCALE},
{10*SCALE, 10*SCALE},
{10*SCALE, 10*SCALE},
{10*SCALE, 10*SCALE},
{10*SCALE, 10*SCALE},
{10*SCALE, 10*SCALE},
{5*SCALE, 5*SCALE},
{5*SCALE, 5*SCALE},
{5*SCALE, 5*SCALE},
{5*SCALE, 5*SCALE},
{5*SCALE, 5*SCALE},
{5*SCALE, 5*SCALE},
{5*SCALE, 5*SCALE},
{20*SCALE, 20*SCALE}
};
// std::vector<Rectangle> rects = {
// {20*SCALE, 10*SCALE},
// {20*SCALE, 10*SCALE},
// {20*SCALE, 20*SCALE},
// };
// std::vector<Item> input {
// {{0, 0}, {0, 20*SCALE}, {10*SCALE, 0}, {0, 0}}
// };
std::vector<Item> crasher =
{
{
{-5000000, 8954050},
{5000000, 8954050},
{5000000, -45949},
{4972609, -568549},
{3500000, -8954050},
{-3500000, -8954050},
{-4972609, -568549},
{-5000000, -45949},
{-5000000, 8954050},
},
{
{-5000000, 8954050},
{5000000, 8954050},
{5000000, -45949},
{4972609, -568549},
{3500000, -8954050},
{-3500000, -8954050},
{-4972609, -568549},
{-5000000, -45949},
{-5000000, 8954050},
},
{
{-5000000, 8954050},
{5000000, 8954050},
{5000000, -45949},
{4972609, -568549},
{3500000, -8954050},
{-3500000, -8954050},
{-4972609, -568549},
{-5000000, -45949},
{-5000000, 8954050},
},
{
{-5000000, 8954050},
{5000000, 8954050},
{5000000, -45949},
{4972609, -568549},
{3500000, -8954050},
{-3500000, -8954050},
{-4972609, -568549},
{-5000000, -45949},
{-5000000, 8954050},
},
{
{-5000000, 8954050},
{5000000, 8954050},
{5000000, -45949},
{4972609, -568549},
{3500000, -8954050},
{-3500000, -8954050},
{-4972609, -568549},
{-5000000, -45949},
{-5000000, 8954050},
},
{
{-5000000, 8954050},
{5000000, 8954050},
{5000000, -45949},
{4972609, -568549},
{3500000, -8954050},
{-3500000, -8954050},
{-4972609, -568549},
{-5000000, -45949},
{-5000000, 8954050},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-9945219, -3065619},
{-9781479, -2031780},
{-9510560, -1020730},
{-9135450, -43529},
{-2099999, 14110899},
{2099999, 14110899},
{9135450, -43529},
{9510560, -1020730},
{9781479, -2031780},
{9945219, -3065619},
{10000000, -4110899},
{9945219, -5156179},
{9781479, -6190020},
{9510560, -7201069},
{9135450, -8178270},
{8660249, -9110899},
{8090169, -9988750},
{7431449, -10802200},
{6691309, -11542300},
{5877850, -12201100},
{5000000, -12771100},
{4067369, -13246399},
{3090169, -13621500},
{2079119, -13892399},
{1045279, -14056099},
{0, -14110899},
{-1045279, -14056099},
{-2079119, -13892399},
{-3090169, -13621500},
{-4067369, -13246399},
{-5000000, -12771100},
{-5877850, -12201100},
{-6691309, -11542300},
{-7431449, -10802200},
{-8090169, -9988750},
{-8660249, -9110899},
{-9135450, -8178270},
{-9510560, -7201069},
{-9781479, -6190020},
{-9945219, -5156179},
{-10000000, -4110899},
{-9945219, -3065619},
},
{
{-18000000, -1000000},
{-15000000, 22000000},
{-11000000, 26000000},
{11000000, 26000000},
{15000000, 22000000},
{18000000, -1000000},
{18000000, -26000000},
{-18000000, -26000000},
{-18000000, -1000000},
},
};
std::vector<Item> proba = {
{
{ {0, 0}, {20, 20}, {40, 0}, {0, 0} }
},
{
{ {0, 100}, {50, 60}, {100, 100}, {50, 0}, {0, 100} }
},
};
std::vector<Item> input;
input.insert(input.end(), prusaParts().begin(), prusaParts().end());
// input.insert(input.end(), prusaExParts().begin(), prusaExParts().end());
// input.insert(input.end(), stegoParts().begin(), stegoParts().end());
// input.insert(input.end(), rects.begin(), rects.end());
// input.insert(input.end(), proba.begin(), proba.end());
// input.insert(input.end(), crasher.begin(), crasher.end());
Box bin(250*SCALE, 210*SCALE);
Coord min_obj_distance = 6*SCALE;
using Placer = NfpPlacer;
using Packer = Arranger<Placer, FirstFitSelection>;
Packer arrange(bin, min_obj_distance);
Packer::PlacementConfig pconf;
pconf.alignment = Placer::Config::Alignment::CENTER;
pconf.starting_point = Placer::Config::Alignment::CENTER;
pconf.rotations = {0.0/*, Pi/2.0, Pi, 3*Pi/2*/};
pconf.object_function = [&bin](Placer::Pile pile, double area,
double norm, double penality) {
auto bb = ShapeLike::boundingBox(pile);
auto& sh = pile.back();
auto rv = Nfp::referenceVertex(sh);
auto c = bin.center();
auto d = PointLike::distance(rv, c);
double score = double(d)/norm;
// If it does not fit into the print bed we will beat it
// with a large penality
if(!NfpPlacer::wouldFit(bb, bin)) score = 2*penality - score;
return score;
};
Packer::SelectionConfig sconf;
// sconf.allow_parallel = false;
// sconf.force_parallel = false;
// sconf.try_triplets = true;
// sconf.try_reverse_order = true;
// sconf.waste_increment = 0.1;
arrange.configure(pconf, sconf);
arrange.progressIndicator([&](unsigned r){
// svg::SVGWriter::Config conf;
// conf.mm_in_coord_units = SCALE;
// svg::SVGWriter svgw(conf);
// svgw.setSize(bin);
// svgw.writePackGroup(arrange.lastResult());
// svgw.save("debout");
std::cout << "Remaining items: " << r << std::endl;
})/*.useMinimumBoundigBoxRotation()*/;
Benchmark bench;
bench.start();
Packer::ResultType result;
try {
result = arrange.arrange(input.begin(), input.end());
} catch(GeometryException& ge) {
std::cerr << "Geometry error: " << ge.what() << std::endl;
return ;
} catch(std::exception& e) {
std::cerr << "Exception: " << e.what() << std::endl;
return ;
}
bench.stop();
std::vector<double> eff;
eff.reserve(result.size());
auto bin_area = double(bin.height()*bin.width());
for(auto& r : result) {
double a = 0;
std::for_each(r.begin(), r.end(), [&a] (Item& e ){ a += e.area(); });
eff.emplace_back(a/bin_area);
};
std::cout << bench.getElapsedSec() << " bin count: " << result.size()
<< std::endl;
std::cout << "Bin efficiency: (";
for(double e : eff) std::cout << e*100.0 << "% ";
std::cout << ") Average: "
<< std::accumulate(eff.begin(), eff.end(), 0.0)*100.0/result.size()
<< " %" << std::endl;
std::cout << "Bin usage: (";
unsigned total = 0;
for(auto& r : result) { std::cout << r.size() << " "; total += r.size(); }
std::cout << ") Total: " << total << std::endl;
for(auto& it : input) {
auto ret = ShapeLike::isValid(it.transformedShape());
std::cout << ret.second << std::endl;
}
if(total != input.size()) std::cout << "ERROR " << "could not pack "
<< input.size() - total << " elements!"
<< std::endl;
svg::SVGWriter::Config conf;
conf.mm_in_coord_units = SCALE;
svg::SVGWriter svgw(conf);
svgw.setSize(bin);
svgw.writePackGroup(result);
// std::for_each(input.begin(), input.end(), [&svgw](Item& item){ svgw.writeItem(item);});
svgw.save("out");
}
int main(void /*int argc, char **argv*/) {
arrangeRectangles();
// findDegenerateCase();
return EXIT_SUCCESS;
}
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