booleanPointOnLine
描述
¥Description
如果点位于直线上,则返回 true。接受可选参数以忽略线串的起始和终止顶点。
¥Returns true if a point is on a line. Accepts a optional parameter to ignore the start and end vertices of the linestring.
参数
¥Parameters
名称 | 类型 | 描述 |
---|---|---|
pt | 坐标系 | GeoJSON 点 |
line | 特性<LineString> | GeoJSON 线串 |
options? | 对象 | 可选参数(默认 {}) |
options.ignoreEndVertices? | boolean | 是否忽略起点和终点。(默认 false) |
options.epsilon? | number | 用于与叉积结果进行比较的分数。用于处理浮点数,例如经纬度点 |
返回
¥Returns
boolean 真/假
¥boolean true/false
示例
¥Examples
var pt = turf.point([0, 0]);
var line = turf.lineString([
[-1, -1],
[1, 1],
[1.5, 2.2],
]);
var isPointOnLine = turf.booleanPointOnLine(pt, line);
//=true
安装
¥Installation
$ npm install @turf/boolean-point-on-line
import { booleanPointOnLine } from "@turf/boolean-point-on-line";
const result = booleanPointOnLine(...);
$ npm install @turf/turf
import * as turf from "@turf/turf";
const result = turf.booleanPointOnLine(...);