i_overlay 6.0.0

Boolean Operations for 2D Polygons: Supports intersection, union, difference, xor, and self-intersections for all polygon varieties.
Documentation 
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{
  "fillRule": 1,
  "subjPaths": [
    [
      [-15, -5],
      [ -5,-15],
      [  5,-15],
      [ 15, -5],
      [ 15,  5],
      [  5, 15],
      [ -5, 15],
      [-15,  5]
    ]
  ],
  "clipPaths": [],
  "subject": [[
    [
      [[0, 0], [3, 3], [2, 1]]
    ],
    [
      [[0, 0], [2,-1], [3,-3]]
    ]
  ]],
  "clip": [[]],
  "union": [[
    [
      [[0, 0], [3, 3], [2, 1]]
    ],
    [
      [[0, 0], [2,-1], [3,-3]]
    ]
  ]],
  "intersect": [[]],
  "difference": [[
    [
      [[0, 0], [3, 3], [2, 1]]
    ],
    [
      [[0, 0], [2,-1], [3,-3]]
    ]
  ]],
  "inverseDifference": [[]],
  "xor": [[
    [
      [[0, 0], [3, 3], [2, 1]]
    ],
    [
      [[0, 0], [2,-1], [3,-3]]
    ]
  ]]
}