along

Takes a LineString and returns a Point at a specified distance along the line.
接受一个LineString并返回沿该线指定距离的点。

参数

参数	类型	描述
line	Feature <LineString>	LineString
distance	number	沿线距离
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 <Point> - Point distance units along the line

示例

var line = turf.lineString([
        [109.502991, 29.68718],
        [108.837829, 32.969237],
        [113.567871, 37.200787]
      ]);
var options = {units: 'miles'};

var along = turf.along(line, 300, options);

npm install @turf/along