Different result between old version and Clipper2

[F-Fede]

Hi,

I was testing Clipper2 in order to check if I can replace the old implementation with the new one, but I found a use case when I get different results from the two software versions.

In particular, it seems that some wrong small pieces are added (or misplaced) to the result; also the result seems not to be closed.
I attach a file with the code I used to replicate the issue: am I missing something?

ClipperComparison.zip

[AngusJohnson]

using Clipper2Lib;

namespace ClipperDemo1
{
  public class Application
  {

    public static void Main()
    {
      Paths64 subj = new Paths64(), solution = new Paths64();

      subj.Add(Clipper.MakePath(new int[] {
         154056, -98304, 147456, -93164, 145778, -91750,
         142293, -88474, 140902, -86902, 139742, -85197,
         138254, -81920, 135914, -75366, 134826, -72090,
         128940, -52429, 125640, -39322, 125319, -36045,
         125661, -32768, 128953, -19661, 134788, 0,
         135859, 3277, 138167, 9830, 139596, 13107,
         140902, 15064, 142045, 16384, 145392, 19661,
         147456, 21476, 153196, 26214, 154010, 26841,
         160563, 31381, 162758, 32768, 168456, 36045,
         170394, 37065, 176947, 40169, 180224, 41458,
         183501, 42722, 186778, 43914, 190054, 44890,
         193331, 45932, 196608, 46781, 199885, 47569,
         203162, 48281, 209715, 49428, 212992, 49826,
         219546, 50533, 226099, 50810, 229376, 50856,
         235930, 50689, 242483, 50124, 245760, 49744,
         252314, 48661, 255590, 47961, 262144, 46382,
         263785, 45875, 268698, 44307, 271974, 43144,
         275251, 41860, 278528, 40548, 285082, 37518,
         288047, 36045, 294912, 32399, 301466, 28584,
         308019, 24463, 310347, 22938, 311296, 22217,
         313804, 19661, 314573, 18597, 315813, 16384,
         322243, 3277, 328405, -9830, 335879, -26214,
         337287, -29491, 337510, -30119, 338152, -32768,
         338330, -36045, 337843, -39322, 337510, -40458,
         336648, -42598, 329168, -58982, 322961, -72090,
         321390, -75366, 316504, -85197, 314781, -88474,
         314573, -88796, 312060, -91750, 311296, -92415,
         308019, -94629, 301466, -98621, 294912, -102306,
         291635, -104006, 288358, -105669, 285082, -107260,
         278528, -110176, 271974, -112681, 268698, -113809,
         262144, -115810, 255590, -117338, 252690, -117965,
         245760, -119075, 242483, -119455, 235930, -120020,
         232653, -120143, 229376, -120216, 226099, -120186,
         219546, -119974, 212992, -119358, 209715, -119001,
         203002, -117965, 199885, -117351, 196608, -116648,
         193331, -115867, 190054, -114949, 186778, -114096,
         178843, -111411, 176947, -110670, 173670, -109293,
         170394, -107853, 163840, -104449, 160563, -102518,
         154056, -98304}));


      subj.Add(Clipper.MakePath(new int[] {
         549215, -75366, 547758, -72090, 547226, -70775,
         545367, -65536, 544436, -62259, 543717, -58982,
         542179, -52429, 541622, -49152, 540409, -36045,
         540414, -32768, 541547, -19661, 542111, -16384,
         542880, -13107, 544324, -6554, 545262, -3277,
         547226, 2252, 547645, 3277, 549112, 6554,
         551103, 9830, 553319, 13107, 556339, 16384,
         557056, 17037, 560333, 19224, 561269, 19661,
         563610, 20461, 566886, 21246, 570163, 21546,
         573440, 21184, 576717, 20111, 577642, 19661,
         579994, 18179, 582513, 16384, 583270, 15747,
         585646, 13107, 587855, 9830, 589721, 6554,
         591381, 3277, 593938, -3277, 595103, -6554,
         596378, -11638, 598122, -19661, 599279, -32768,
         599272, -36045, 598027, -49152, 596378, -56574,
         595775, -58982, 594941, -62259, 593771, -65536,
         591203, -72090, 589552, -75366, 587704, -78643,
         585531, -81920, 583270, -84455, 582396, -85197,
         579994, -86958, 577620, -88474, 576717, -88915,
         573440, -89997, 570163, -90368, 566886, -90076,
         563610, -89287, 561254, -88474, 560333, -88040,
         557056, -85840, 556353, -85197, 553779, -82383,
         553380, -81920, 551183, -78643, 549215, -75366
      }));

      solution = Clipper.InflatePaths(subj, 720896, JoinType.Round, EndType.Polygon);
      //Console.WriteLine(solution.ToString());

      SvgWriter svg = new();
      SvgUtils.AddSubject(svg, subj);
      SvgUtils.AddSolution(svg, solution, false);
      SvgUtils.SaveToFile(svg, "..\\..\\..\\tmp.svg", FillRule.EvenOdd, 420, 320, 10);
      ClipperFileIO.OpenFileWithDefaultApp("..\\..\\..\\tmp.svg");
    }

[F-Fede]

Hi Angus,

I tried the code again, then I deleted the project and download it again: now I get the expected result, I don't know what went wrong during previous downloads...

Thank you very much.