如何在谷歌地图中可视化路径
我想创建一个谷歌地图的网页应用，能够导入一个GPX文件，把路线在地图上以覆盖层的形式显示出来。导入后，我希望结果看起来像这样！
我该怎么做呢？我正在使用Python的Django框架。
希望有人能帮帮我。
1 个回答
4
我对GPX、Python和Django这方面的内容帮不了你。不过，如果你能得到一组包含你路线所有点的经纬度数据，这段代码就能帮你生成这条路线。
<!DOCTYPE html>
<html>
<head>
<title>Draw a polyline given many coordinates</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas { height: 100% }
</style>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js"></script>
<script>
function initialize() {
var homeLatlng = new google.maps.LatLng(51.476706,0);
var myOptions = {
zoom: 15,
center: homeLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
// create an array of coordinates
var arrCoords = [
new google.maps.LatLng(51.482238,0.001581),
new google.maps.LatLng(51.473364,0.011966),
new google.maps.LatLng(51.471974,-0.000651),
new google.maps.LatLng(51.472108,-0.002196),
new google.maps.LatLng(51.474995,-0.003827),
new google.maps.LatLng(51.476492,-0.005629),
new google.maps.LatLng(51.477855,-0.006058),
new google.maps.LatLng(51.478443,-0.007045),
new google.maps.LatLng(51.479298,-0.007861),
new google.maps.LatLng(51.481202,-0.002136),
new google.maps.LatLng(51.481577,-0.0022)
];
// draw the route on the map
var route = new google.maps.Polyline({
path: arrCoords,
strokeColor: "#00FF00",
strokeOpacity: 1.0,
strokeWeight: 4,
geodesic: false,
map: map
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map_canvas"></div>
</body>
</html>