Function test1

CPP/Examples/VariableOffset/VariableOffset.cpp:19–46

}

void test1() {

  int64_t const scale = 10;
  double delta = 10 * scale;

  ClipperOffset co;
  co.SetDeltaCallback([delta](const Path64& path,
    const PathD& path_norms, size_t curr_idx, size_t prev_idx)
    {
      // gradually scale down the offset to a minimum of 25% of delta
      double high = static_cast<double>(path.size() - 1) * 1.25;
      return (high - curr_idx) / high * delta;
    });

  Paths64 subject{ Ellipse(Rect64(0, 0, 200 * scale, 180 * scale)) };
  subject[0].resize(subject[0].size() * 0.9);

  co.AddPaths(subject, JoinType::Miter, EndType::Round);
  Paths64 solution;
  co.Execute(1.0, solution);

  std::string filename = "test1.svg";
  SvgWriter svg;
  SvgAddOpenSubject(svg, subject, FillRule::NonZero);
  SvgAddSolution(svg, solution, FillRule::NonZero, false);
  SvgSaveToFile(svg, filename, 400, 400);
  System(filename);
}

void test2() {