lineSliceAlong

Takes a line , a specified distance along the line to a start Point , and a specified distance along the line to a stop point and returns a subsection of the line in-between those points.
取一条线，沿该线到起始点的指定距离，以及沿该线到终止点的指定距离，并返回这些点之间的该线的分段。

参数

参数	类型	描述
line	(Feature <LineString>|LineString)	input line
startDist	number	distance along the line to starting point
stopDist	number	distance along the line to ending point
options	Object	可选参数：见下文

options选项

属性	类型	默认值	描述
units	string	kilometers	可以是度、弧度、英里或公里

返回

Feature <LineString> - sliced line

示例

var line = turf.lineString([[7, 45], [9, 45], [14, 40], [14, 41]]);
var start = 12.5;
var stop = 25;
var sliced = turf.lineSliceAlong(line, start, stop, {units: 'miles'});