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103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
#include <cstdlib>
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#include <string>
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#include <chrono>
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#include <random>
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#include "clipper2/clipper.h"
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#include "../../Utils/clipper.svg.utils.h"
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#include "../../Utils/ClipFileLoad.h"
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#include "../../Utils/ClipFileSave.h"
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using namespace Clipper2Lib;
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const int display_width = 800, display_height = 600;
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void DoLoopThruPolygons(int start = 0, int end = 0);
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void System(const std::string &filename);
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int main()
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{
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std::cout.imbue(std::locale(""));
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srand((unsigned)time(0));
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//DoLoopThruPolygons(); // check all
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//DoLoopThruPolygons(46); // display one
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DoLoopThruPolygons(110,113); // display a range
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return 0;
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}
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void DoLoopThruPolygons(int start, int end)
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{
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Paths64 subject, subject_open, clip, solution, solution_open;
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int64_t stored_area, stored_count;
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ClipType ct;
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FillRule fr;
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bool first_fail = true;
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bool do_all = (start == 0 && end == 0);
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if (do_all) { start = 1; end = 0xFFFF; }
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else if (end == 0) end = start;
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std::ifstream ifs("Polygons.txt");
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for (int test_number = start; test_number <= end; ++test_number)
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{
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if (!LoadTestNum(ifs, test_number,
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subject, subject_open, clip, stored_area, stored_count, ct, fr)) break;
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Clipper64 c64;
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c64.AddSubject(subject);
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c64.AddOpenSubject(subject_open);
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c64.AddClip(clip);
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if (!c64.Execute(ct, fr, solution, solution_open)) return;
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if (do_all)
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{
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double area = (double)Area(solution);
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double area_diff = (double)stored_area <= 0 ?
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0 :
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std::fabs((area / (double)stored_area) - 1.0);
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int count = (int)(solution.size());
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double count_diff = stored_count <= 0 ?
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0 :
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std::abs(count - stored_count)/(double)stored_count;
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if (count_diff > 0.02 || (area_diff > 0.1))
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{
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if (first_fail)
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{
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std::cout << "\nCount and area differences (expected vs measured):\n" << std::endl;
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first_fail = false;
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}
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if (count_diff > 0.02)
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std::cout << test_number << ": counts " << stored_count << " vs " << count << std::endl;
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if (area_diff > 0.1)
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std::cout << test_number << ": areas " << stored_area << " vs " << area << std::endl;
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}
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continue;
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}
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SvgWriter svg;
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SvgAddSubject(svg, subject, fr);
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SvgAddClip(svg, clip, fr);
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if (fr == FillRule::Negative)
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for (auto& path: solution) std::reverse(path.begin(), path.end());
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SvgAddSolution(svg, solution, fr, false);
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SvgAddCaption(svg, std::to_string(test_number), 20, 20);
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std::string filename = "poly" + std::to_string(test_number - 1) + ".svg";
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SvgSaveToFile(svg, filename, 800, 600, 10);
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System(filename);
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}
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if (!do_all) return;
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std::cout << std::endl;
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std::string s;
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std::cout << "Press Enter to continue" << std::endl;
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std::getline(std::cin, s);
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}
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void System(const std::string &filename)
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{
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#ifdef _WIN32
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system(filename.c_str());
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#else
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system(("firefox " + filename).c_str());
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#endif
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}
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