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Diffstat (limited to 'src/libnest2d/examples/main.cpp')
| -rw-r--r-- | src/libnest2d/examples/main.cpp | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/src/libnest2d/examples/main.cpp b/src/libnest2d/examples/main.cpp new file mode 100644 index 000000000..ebc3fb15c --- /dev/null +++ b/src/libnest2d/examples/main.cpp @@ -0,0 +1,218 @@ +#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 "libnest2d/rotfinder.hpp" + +//#include "tools/libnfpglue.hpp" +//#include "tools/nfp_svgnest_glue.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; + + std::vector<Item> rects(202, { + {-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, -6190019}, + {9510560, -7201069}, + {9135450, -8178270}, + {8660249, -9110899}, + {8090169, -9988750}, + {7431449, -10802209}, + {6691309, -11542349}, + {5877850, -12201069}, + {5000000, -12771149}, + {4067369, -13246350}, + {3090169, -13621459}, + {2079119, -13892379}, + {1045279, -14056119}, + {0, -14110899}, + {-1045279, -14056119}, + {-2079119, -13892379}, + {-3090169, -13621459}, + {-4067369, -13246350}, + {-5000000, -12771149}, + {-5877850, -12201069}, + {-6691309, -11542349}, + {-7431449, -10802209}, + {-8090169, -9988750}, + {-8660249, -9110899}, + {-9135450, -8178270}, + {-9510560, -7201069}, + {-9781479, -6190019}, + {-9945219, -5156179}, + {-10000000, -4110899}, + {-9945219, -3065619}, + }); + + 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()); + + Box bin(250*SCALE, 210*SCALE); +// PolygonImpl bin = { +// { +// {25*SCALE, 0}, +// {0, 25*SCALE}, +// {0, 225*SCALE}, +// {25*SCALE, 250*SCALE}, +// {225*SCALE, 250*SCALE}, +// {250*SCALE, 225*SCALE}, +// {250*SCALE, 25*SCALE}, +// {225*SCALE, 0}, +// {25*SCALE, 0} +// }, +// {} +// }; + +// Circle bin({0, 0}, 125*SCALE); + + auto min_obj_distance = static_cast<Coord>(6*SCALE); + + using Placer = placers::_NofitPolyPlacer<PolygonImpl, decltype(bin)>; + using Packer = Nester<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.accuracy = 0.65f; + pconf.parallel = true; + + Packer::SelectionConfig sconf; +// sconf.allow_parallel = false; +// sconf.force_parallel = false; +// sconf.try_triplets = true; +// sconf.try_reverse_order = true; +// sconf.waste_increment = 0.01; + + arrange.configure(pconf, sconf); + + arrange.progressIndicator([&](unsigned r){ + std::cout << "Remaining items: " << r << std::endl; + }); + +// findMinimumBoundingBoxRotations(input.begin(), input.end()); + + Benchmark bench; + + bench.start(); + Packer::ResultType result; + + try { + result = arrange.execute(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 = sl::area(bin); + 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: ("; + size_t 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 = sl::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; + + using SVGWriter = svg::SVGWriter<PolygonImpl>; + + SVGWriter::Config conf; + conf.mm_in_coord_units = SCALE; + SVGWriter svgw(conf); + svgw.setSize(Box(250*SCALE, 210*SCALE)); + svgw.writePackGroup(result); + svgw.save("out"); +} + +int main(void /*int argc, char **argv*/) { + arrangeRectangles(); + return EXIT_SUCCESS; +} |