多边形.clip

实施格来纳-凯"高效剪接任意多边形" 纸张

安装

npm install 2d-polygon-boolean

使用情况

签名

var polygons = polygonBoolean(array1, array2, mode)

模式为字符串 and (节间), or (工会), not (切开)

polygons 是数组数组

(例如

  [
    [
      [0, 0],
      [0, 1],
      [1, 1]
    ]
  ]

实例

var polygonBoolean = require('2d-polygon-boolean');

var subject = [
  [0, 0],
  [100, 0],
  [100, 100],
  [0, 100]
];

var clip = [
  [90, 90],
  [110, 90],
  [110, 110],
  [90, 110],
  [90, 90]
];


var union = polygonBoolean(subject, clip, 'or');
console.log('union results', union);

/*
union results [ [ [ 100, 90 ],
    [ 100, 0 ],
    [ 0, 0 ],
    [ 0, 100 ],
    [ 90, 100 ],
    [ 90, 110 ],
    [ 110, 110 ],
    [ 110, 90 ] ] ]
*/

var cut = polygonBoolean(subject, clip, 'not');
console.log('cut results', cut);

/*
cut results [ [ [ 100, 90 ],
    [ 100, 0 ],
    [ 0, 0 ],
    [ 0, 100 ],
    [ 90, 100 ],
    [ 90, 90 ] ] ]
*/

var intersect = polygonBoolean(subject, clip, 'and');
console.log('intersect results', intersect);

/*
intersect results [ [ [ 100, 90 ], [ 100, 100 ], [ 90, 100 ], [ 90, 90 ] ] ]
*/

许可证

麻省理工学院