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获取json数据后在地图上打点，根据 json不断移动点的位置

2018-04-14 12:46 337 查看

<?php

echo <<<_END
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
<title>点标记</title>
<link rel="stylesheet" href="http://cache.amap.com/lbs/static/main1119.css"/>
<style>
.marker {
color: #ff6600;
padding: 4px 10px;
border: 1px solid #fff;
white-space: nowrap;
font-size: 12px;
font-family: "";
background-color: #0066ff;
}
</style>
<script src="http://webapi.amap.com/maps?v=1.3&key=您申请的key值"></script>
<script type="text/javascript" src="http://cache.amap.com/lbs/static/addToolbar.js"></script>
</head>
<body>
<div id="container"></div>
<script>
var marker, map = new AMap.Map("container", {
resizeEnable: true,
center: [126.60580555556, 45.702363888889],
zoom: 13
});
var getJSON = function(url) {
return new Promise(function(resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open('get', url, true);
xhr.responseType = 'json';
xhr.onload = function() {
var status = xhr.status;
if (status == 200) {
resolve(xhr.response);
} else {
reject(status);
}
};
xhr.send();
});
};

getJSON('http://web.cellpies.com/api/driving/getVehicleLocationPoints?vehicleDeviceId=0400000000030603&timeType=4&startTime=2017-03-17%2013:00:00&stopTime=2017-03-17%2014:00:00').then(function(jdata) {
//alert('Your Json result is:  ' + jdata); //you can comment this, i used it to debug
//alert(jdata.data[0].gpsx);
//alert(jdata.data[0].gpsy);
window.i=0;
//addMarker(jdata.data[i].gpsx,jdata.data[i].gpsy);
setInterval(function () { addMarker(jdata.data[window.i].gpsx,jdata.data[window.i].gpsy); },"1000");

}, function(status) { //error detection....
alert('Something went wrong.');
});

// 实例化点标记
function addMarker(v1,v2) {

window.i+=10;
marker = new AMap.Marker({
icon: "http://webapi.amap.com/theme/v1.3/markers/n/mark_b.png",
position: [v1,v2]
});
marker.setMap(map);
}

</script>
</body>
</html>

</script>
</body>
</html>

_END;

?>

效果图

-----------------------------------------------------------------------更新---------------------------------------------------------

去掉连续显示多个点，每次只显示一个点

<?php
echo<<<_END
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
<title>点标记</title>
<link rel="stylesheet" href="http://cache.amap.com/lbs/static/main1119.css"/>
<style>
.marker {
color: #ff6600;
padding: 4px 10px;
border: 1px solid #fff;
white-space: nowrap;
font-size: 12px;
font-family: "";
background-color: #0066ff;
}
</style>
<script src="http://webapi.amap.com/maps?v=1.3&key=您申请的key值"></script>
<script type="text/javascript" src="http://cache.amap.com/lbs/static/addToolbar.js"></script>
</head>
<body>
<div id="container"></div>
<script>
var marker, map = new AMap.Map("container", {
resizeEnable: true,
center: [126.60580555556, 45.702363888889],
zoom: 13
});
var getJSON = function(url) {
return new Promise(function(resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open('get', url, true);
xhr.responseType = 'json';
xhr.onload = function() {
var status = xhr.status;
if (status == 200) {
resolve(xhr.response);
} else {
reject(status);
}
};
xhr.send();
});
};

getJSON('http://web.cellpies.com/api/driving/getVehicleLocation
4000
Points?vehicleDeviceId=0400000000030603&timeType=4&startTime=2017-03-17%2013:00:00&stopTime=2017-03-17%2014:00:00').then(function(jdata) {
addMarker(jdata.data[0].gpsx,jdata.data[0].gpsy);
window.i=1;
//updateMarker(jdata.data[1].gpsx,jdata.data[1].gpsy);
setInterval(function () { updateMarker(jdata.data[window.i].gpsx,jdata.data[window.i].gpsy); },"1000");

}, function(status) { //error detection....
alert('Something went wrong.');
});

// 实例化点标记
function addMarker(v1,v2) {

marker = new AMap.Marker({
icon: "http://webapi.amap.com/theme/v1.3/markers/n/mark_b.png",
position: [v1,v2]
});
marker.setMap(map);
}
function updateMarker(v1,v2) {
//在地图上更新标记
// 自定义点标记内容
window.i+=10;
var markerContent = document.createElement("div");

// 点标记中的图标
var markerImg = document.createElement("img");
markerImg.className = "markerlnglat";
markerImg.src = "http://webapi.amap.com/theme/v1.3/markers/n/mark_r.png";
markerContent.appendChild(markerImg);

// 点标记中的文本
var markerSpan = document.createElement("span");
markerSpan.className = 'marker';
markerSpan.innerHTML = "Hi，我换新装备啦！";
markerContent.appendChild(markerSpan);

marker.setContent(markerContent); //更新点标记内容
marker.setPosition([v1,v2]); //更新点标记位置
}

</script>
</body>
</html>

</script>
</body>
</html>

_END;
?>

涉及setInterval传参的问题。

发现用addMarker(jdata.data[i].gpsx,jdata.data[i].gpsy);时程序可正常运行，但是将该函数放到setInterval中后却出现了问题，可通过闭包解决。

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获取json数据后在 地图上打点，根据 json不断移动点的位置

获取json数据后在地图上打点，根据 json不断移动点的位置