kinks

Takes a linestring , multi-linestring , multi-polygon , or polygon and returns points at all self-intersections.
获取一个linestring、multi-linestring、multi-polygon，并返回所有自身相交点。

参数

参数	类型	描述
featureIn	Feature <(LineString|MultiLineString|MultiPolygon|Polygon)>	input feature

返回

FeatureCollection <Point> - self-intersections

示例

var poly = turf.polygon([[
  [-12.034835, 8.901183], // 注意：polygon首尾坐标要一致
  [-12.060413, 8.899826],
  [-12.03638, 8.873199],
  [-12.059383, 8.871418],
  [-12.034835, 8.901183]
]]);

var kinks = turf.kinks(poly);