martinez-error.js

var martinez = require('martinez-polygon-clipping');

// https://skyvector.com/?fpl=3529S14100E%203556S14216E%203557S14217E%203558S14222E%203650S14259E%203658S14256E%203730S14251E%203720S14319E%203714S14356E%203705S14444E%203712S14510E%203627S14548E%203559S14623E%203553S14610E%203544S14547E%203535S14525E%203526S14502E%203516S14440E%203507S14417E%203458S14355E%203448S14333E%203438S14311E%203429S14249E%203419S14227E%203409S14205E%203359S14143E%203349S14122E%203339S14100E%203529S14100E
var big = [ [ 141, -35.49 ],
  [ 142.27, -35.93 ],
  [ 142.28, -35.95 ],
  [ 142.37, -35.97 ],
  [ 142.98, -36.83 ],
  [ 142.93, -36.97 ],
  [ 142.85, -37.5 ],
  [ 143.32, -37.33 ],
  [ 143.93, -37.23 ],
  [ 144.73, -37.08 ],
  [ 145.17, -37.2 ],
  [ 145.8, -36.45 ],
  [ 146.39, -35.98 ],
  [ 146.16, -35.89 ],
  [ 145.79, -35.74 ],
  [ 145.41, -35.59 ],
  [ 145.03, -35.43 ],
  [ 144.66, -35.27 ],
  [ 144.29, -35.12 ],
  [ 143.92, -34.96 ],
  [ 143.55, -34.8 ],
  [ 143.18, -34.64 ],
  [ 142.81, -34.48 ],
  [ 142.45, -34.31 ],
  [ 142.08, -34.15 ],
  [ 141.72, -33.98 ],
  [ 141.36, -33.82 ],
  [ 141, -33.65 ],
  [ 141, -35.49 ] ]

// https://skyvector.com/?fpl=3800S14230E%203800S14300E%203730S14300E%203730S14230E%203800S14230E
var small =
[ [ 142.5, -38 ],
  [ 143, -38 ],
  [ 143, -37.5 ],
  [ 142.5, -37.5 ],
  [ 142.5, -38 ] ];

console.log(martinez.intersection([big], [small]));