该博客介绍了如何使用JavaScript实现经纬度坐标判断一个点是否位于一个多边形内部的方法。通过遍历多边形边界，计算与测试点的交点数量来确定点的位置。提供的代码示例展示了具体的实现逻辑。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<head>
</head>
</head>
<body style="background:#f8f9fa;">
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
var p = [116.428752 , 40.065088];//测试gps坐标
var lp = {
p0:[116.361774 , 39.949914],
p1:[116.423578 , 40.064204],
p2:[116.252253 , 40.178962],
p3:[116.540286 , 40.045206],
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<head>
</head>
</head>
<body style="background:#f8f9fa;">
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
var p = [116.428752 , 40.065088];//测试gps坐标
var lp = {
p0:[116.361774 , 39.949914],
p1:[116.423578 , 40.064204],
p2:[116.252253 , 40.178962],
p3:[116.540286 , 40.045206],
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