例如可以使用以下坐标在传单的2个近点之间绘制一条曲线:
point_1 = (23.634501, -102.552783)
point_2 = (17.987557, -92.929147)
谢谢。
答案 0 :(得分:0)
正如@Wrokar所暗示的,可以使用Leaflet.curve库来实现。您可以简单地使用此gist提供的代码,并将坐标分别替换为变量latlng1和latlng2中定义的坐标。
var latlng1 = [LATITUDE, LONGTITUDE],
latlng2 = [LATITUDE, LONGTITUDE];
这是一个有效的示例:
var map = L.map('mapid').setView([51.505, -10], 1);
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);
var latlngs = [];
var latlng1 = [23.634501, -102.552783],
latlng2 = [17.987557, -92.929147];
var offsetX = latlng2[1] - latlng1[1],
offsetY = latlng2[0] - latlng1[0];
var r = Math.sqrt(Math.pow(offsetX, 2) + Math.pow(offsetY, 2)),
theta = Math.atan2(offsetY, offsetX);
var thetaOffset = (3.14 / 10);
var r2 = (r / 2) / (Math.cos(thetaOffset)),
theta2 = theta + thetaOffset;
var midpointX = (r2 * Math.cos(theta2)) + latlng1[1],
midpointY = (r2 * Math.sin(theta2)) + latlng1[0];
var midpointLatLng = [midpointY, midpointX];
latlngs.push(latlng1, midpointLatLng, latlng2);
var pathOptions = {
color: 'red',
weight: 3
}
var curvedPath = L.curve(
[
'M', latlng1,
'Q', midpointLatLng,
latlng2
], pathOptions).addTo(map);
body {
padding: 0px;
margin: 0px;
}
#mapid {
height: 300px;
}
<link rel="stylesheet" type="text/css" href="https://unpkg.com/leaflet@1.3.3/dist/leaflet.css">
<script src="https://unpkg.com/leaflet@1.3.3/dist/leaflet.js"></script>
<script src="https://elfalem.github.io/Leaflet.curve/src/leaflet.curve.js"></script>
<div id="mapid"></div>