234 lines
10 KiB
HTML
234 lines
10 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="zh">
|
||
<head>
|
||
<meta charset="utf-8">
|
||
<meta http-equiv="X-UA-Compatible" content="IE=edge">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||
<title>椭球模型地球上点之间的距离</title>
|
||
<!-- Bootstrap -->
|
||
<link href="https://cdn.gh.ink/assembly/bootstrap/4.6.1/css/bootstrap.min.css" rel="stylesheet">
|
||
<!-- Favicon -->
|
||
<link rel="icon" href="https://2-cdn.ianxia.com/images/avatar/common.png" type="image/png">
|
||
<script src="https://cdn.gh.ink/js/vue/2.6.14/vue.min.js"></script>
|
||
</head>
|
||
<body>
|
||
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
|
||
<a class="navbar-brand" href="https://tools.ianxia.com"><b>Ian</b>Tools</a>
|
||
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
|
||
<span class="navbar-toggler-icon"></span>
|
||
</button>
|
||
<div class="collapse navbar-collapse" id="navbarSupportedContent">
|
||
<ul class="navbar-nav ml-auto">
|
||
<li class="nav-item dropdown">
|
||
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
|
||
语言
|
||
</a>
|
||
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
|
||
<a class="dropdown-item" href="en_US.html"><b>English</b></a>
|
||
</div>
|
||
</li>
|
||
<li class="nav-item">
|
||
<a class="nav-link" href="https://www.ianxia.com">首页</a>
|
||
</li>
|
||
<li class="nav-item">
|
||
<a class="nav-link" href="https://blog.ianxia.com">博客</a>
|
||
</li>
|
||
<li class="nav-item">
|
||
<a class="nav-link" href="https://demo.ianxia.com">DEMO</a>
|
||
</li>
|
||
<li class="nav-item">
|
||
<a class="nav-link" href="https://adsb.ianxia.com">ADS-B</a>
|
||
</li>
|
||
<li class="nav-item active">
|
||
<a class="nav-link" href="../zh_CN.html">小工具</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</nav>
|
||
<section>
|
||
<div class="jumbotron text-center mt-2">
|
||
<div class="container">
|
||
<div class="row">
|
||
<div class="col-12">
|
||
<h1>椭球模型地球上点之间的距离</h1>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
<section>
|
||
<div class="container">
|
||
<div class="row" id="app">
|
||
<div class="col-md-1"></div>
|
||
<div class="col-md-5">
|
||
<form class="form-horizontal" role="form">
|
||
<div class="form-inline">
|
||
<label><b>A点经度</b> </label>
|
||
<input type="number" step="0.01" class="form-control" max="180" min="-180" v-model="lopa" placeholder="A点经度">
|
||
</div><br>
|
||
<div class="form-inline">
|
||
<label><b>A点纬度</b> </label>
|
||
<input type="number" step="0.01" class="form-control" max="90" min="-90" v-model="lapa" placeholder="A点纬度">
|
||
</div><br>
|
||
<div class="form-inline">
|
||
<label><b>B点经度</b> </label>
|
||
<input type="number" step="0.01" class="form-control" max="180" min="-180" v-model="lopb" placeholder="B点经度">
|
||
</div><br>
|
||
<div class="form-inline">
|
||
<label><b>B点纬度</b> </label>
|
||
<input type="number" step="0.01" class="form-control" max="90" min="-90" v-model="lapb" placeholder="B点纬度">
|
||
</div><br>
|
||
</form>
|
||
</div>
|
||
<div class="col-md-6">
|
||
<h5>计算结果：</h5>
|
||
<h5>距离：{{distance}} km</h5>
|
||
</div>
|
||
</div>
|
||
<div class="text-center">
|
||
<hr>
|
||
<h5>算法来源：<a href="http://www.movable-type.co.uk/scripts/latlong-vincenty.html">Vincenty solutions of geodesics on the ellipsoid</a></h5>
|
||
<h5>语言翻译：Bigsk</h5>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
<hr>
|
||
<script>
|
||
let a = 6378137;
|
||
let b = 6356752.314245;
|
||
let f = 1 / 298.257223563;
|
||
|
||
function getDistance(lat_one, lon_one, lat_two, lon_two) {
|
||
let L = toRadians(lon_one - lon_two);
|
||
let U1 = Math.atan((1 - f) * Math.tan(toRadians(lat_one)));
|
||
let U2 = Math.atan((1 - f) * Math.tan(toRadians(lat_two)));
|
||
let sinU1 = Math.sin(U1), cosU1 = Math.cos(U1),
|
||
sinU2 = Math.sin(U2), cosU2 = Math.cos(U2);
|
||
let lambda = L, lambdaP = Math.PI;
|
||
let cosSqAlpha = 0, sinSigma = 0, cos2SigmaM = 0, cosSigma = 0, sigma = 0;
|
||
let circleCount = 40;
|
||
while (Math.abs(lambda - lambdaP) > 1e-12 && --circleCount > 0) {
|
||
let sinLambda = Math.sin(lambda), cosLambda = Math.cos(lambda);
|
||
sinSigma = Math.sqrt((cosU2 * sinLambda) * (cosU2 * sinLambda) +
|
||
(cosU1 * sinU2 - sinU1 * cosU2 * cosLambda) * (cosU1 * sinU2 - sinU1 * cosU2 * cosLambda));
|
||
if (sinSigma == 0) {
|
||
return 0;
|
||
}
|
||
cosSigma = sinU1 * sinU2 + cosU1 * cosU2 * cosLambda;
|
||
sigma = Math.atan2(sinSigma, cosSigma);
|
||
let alpha = Math.asin(cosU1 * cosU2 * sinLambda / sinSigma);
|
||
cosSqAlpha = Math.cos(alpha) * Math.cos(alpha);
|
||
cos2SigmaM = cosSigma - 2 * sinU1 * sinU2 / cosSqAlpha;
|
||
let C = f / 16 * cosSqAlpha * (4 + f * (4 - 3 * cosSqAlpha));
|
||
lambdaP = lambda;
|
||
lambda = L + (1 - C) * f * Math.sin(alpha) *
|
||
(sigma + C * sinSigma * (cos2SigmaM + C * cosSigma * (-1 + 2 * cos2SigmaM * cos2SigmaM)));
|
||
}
|
||
if (circleCount == 0) {
|
||
return NaN;
|
||
}
|
||
let uSq = cosSqAlpha * (a * a - b * b) / (b * b);
|
||
let A = 1 + uSq / 16384 * (4096 + uSq * (-768 + uSq * (320 - 175 * uSq)));
|
||
let B = uSq / 1024 * (256 + uSq * (-128 + uSq * (74 - 47 * uSq)));
|
||
let deltaSigma = B * sinSigma * (cos2SigmaM + B / 4 * (cosSigma * (-1 + 2 * cos2SigmaM * cos2SigmaM) -
|
||
B / 6 * cos2SigmaM * (-3 + 4 * sinSigma * sinSigma) * (-3 + 4 * cos2SigmaM * cos2SigmaM)));
|
||
|
||
let result = b * A * (sigma - deltaSigma) / 1000;
|
||
return result;
|
||
}
|
||
|
||
function toRadians(angle) {
|
||
let result = 0;
|
||
if (angle != null) {
|
||
result = angle * Math.PI / 180;
|
||
}
|
||
return result;
|
||
}
|
||
|
||
new Vue({
|
||
el: '#app',
|
||
data: {
|
||
lopa: 120,
|
||
lapa: 30,
|
||
lopb: 79,
|
||
lapb: 44
|
||
},
|
||
computed: {
|
||
distance: function() {
|
||
return getDistance(this.lapa, this.lopa, this.lapb, this.lopb);
|
||
}
|
||
}
|
||
})
|
||
|
||
let date = new Date();
|
||
</script>
|
||
<footer class="text-center">
|
||
<div class="container">
|
||
<div class="row">
|
||
<div class="col-12">
|
||
<p style="color: #516069"><strong>版权所有 © Ian Xia <script>document.write(date.getFullYear().toString());</script> 保留所有权利</strong></p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
|
||
<script src="https://cdn.gh.ink/js/jquery/jquery-3.6.0.min.js"></script>
|
||
<!-- Grey Filter Detector -->
|
||
<script>
|
||
$.ajax({
|
||
type: "GET",
|
||
url: "https://open.geh.ink/grey_filter",
|
||
dataType: "json",
|
||
success: function(data, textStatus){
|
||
for (let i=0;i<data["content"]["accurate_slot"].length;i++) {
|
||
// Accurate Slot
|
||
if (Date.now()/1000 >= data["content"]["accurate_slot"][i][0] && Date.now()/1000 <= data["content"]["accurate_slot"][i][1]) {
|
||
$("html").css({
|
||
'-webkit-filter': 'grayscale(100%)',
|
||
'-moz-filter': 'grayscale(100%)',
|
||
'-ms-filter': 'grayscale(100%)',
|
||
'-o-filter': 'grayscale(100%)',
|
||
'filter': 'progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)',
|
||
'_filter': 'none'
|
||
});
|
||
break;
|
||
}
|
||
}
|
||
for (let i=0;i<data["content"]["day_slot"].length;i++) {
|
||
// Day Slot
|
||
let begin = new Date(
|
||
date.getFullYear().toString() + "-" +
|
||
data["content"]["day_slot"][i][0][0].toString() + "-" +
|
||
data["content"]["day_slot"][i][0][1].toString() + " " +
|
||
data["content"]["day_slot"][i][0][2].toString() + ":" +
|
||
data["content"]["day_slot"][i][0][3].toString() + ":" +
|
||
data["content"]["day_slot"][i][0][4].toString()
|
||
)
|
||
let end = new Date(
|
||
date.getFullYear().toString() + "-" +
|
||
data["content"]["day_slot"][i][1][0].toString() + "-" +
|
||
data["content"]["day_slot"][i][1][1].toString() + " " +
|
||
data["content"]["day_slot"][i][1][2].toString() + ":" +
|
||
data["content"]["day_slot"][i][1][3].toString() + ":" +
|
||
data["content"]["day_slot"][i][1][4].toString()
|
||
)
|
||
if (Date.now() >= begin.getTime() && Date.now() <= end.getTime()) {
|
||
$("html").css({
|
||
'-webkit-filter': 'grayscale(100%)',
|
||
'-moz-filter': 'grayscale(100%)',
|
||
'-ms-filter': 'grayscale(100%)',
|
||
'-o-filter': 'grayscale(100%)',
|
||
'filter': 'progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)',
|
||
'_filter': 'none'
|
||
});
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
});
|
||
</script>
|
||
<!-- Include all compiled plugins (below), or include individual files as needed -->
|
||
<script src="https://cdn.gh.ink/js/popper/1.16.1/popper.min.js"></script>
|
||
<script src="https://cdn.gh.ink/assembly/bootstrap/4.6.1/js/bootstrap.min.js"></script>
|
||
</body>
|
||
</html> |