Question

Takes any LineString or Polygon and returns the overlapping lines between both features.
获取任何LineString或Polygon，并返回两个Feature之间的重叠线。

参数

参数	类型	描述
line1	(Geometry|Feature <(LineString|MultiLineString|Polygon|MultiPolygon)>)	any LineString or Polygon
line2	(Geometry|Feature <(LineString|MultiLineString|Polygon|MultiPolygon)>)	any LineString or Polygon
options	Object	可选参数：见下文

options选项

属性	类型	默认值	描述
tolerance	number	0	Tolerance distance to match overlapping line segments (in kilometers)

返回

FeatureCollection <LineString> - lines(s) that are overlapping between both features

示例

var line1 = turf.lineString([[115, -35], [125, -30], [135, -30], [145, -35]]);
var line2 = turf.lineString([[115, -25], [125, -30], [135, -30], [145, -25]]);

var overlapping = turf.lineOverlap(line1, line2);