Question

我在地图上制作了这条路线。使用一些坐标生成的路线，其中包含附加信息（速度）。我希望当路线悬停时，将出现工具提示并在这些坐标处显示信息（速度）。我混淆了如何显示速度的工具提示。

<html>
<head>
   <title>Polyline Route v3 Example</title>
   <script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?v=3&amp;sensor=false"></script>
   <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>   
   <script type="text/javascript">
    var locations = [
        {"speed":"13","lat":"-6.246192976751192","lon":"106.79324626922607"}, {"speed":"33","lat":"-6.245723710157699","lon":"106.79603576660156"}, {"speed":"23","lat":"-6.245723710157699","lon":"106.79796695709229"}, {"speed":"43","lat":"-6.243334710069922","lon":"106.79800987243652"},
        {"speed":"12","lat":"-6.245723810157699","lon":"106.79796725709229"}, {"speed":"1","lat":"-6.245723860157699","lon":"106.79796735709229"}, {"speed":"45","lat":"-6.245723890157699","lon":"106.79797755709229"}, {"speed":"21","lat":"-6.245723910157699","lon":"106.79797895709229"}
    ];
    var map;
    function createRouteMap(){
    var listRoute = [];
    for (var i = 0; i < locations.length; i++) {
        listRoute.push(new google.maps.LatLng(locations[i].lat, locations[i].lon));
    }
    var mapOptions = {
      zoom: 16,
      center: listRoute[Math.ceil(listRoute.length/2)],
      mapTypeId: google.maps.MapTypeId.ROADMAP,
    };
    map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
    showMap(listRoute);
    createMarkers(locations);
}

function showMap(listRoute){
    if((listRoute.length < 1) || (listRoute == null)){
        jQuery("#map_canvas").html('<div class="alert alert-info"> <strong>Empty Trail!</strong> This trip still has no trail </div>'+
        '<div class="btn-toolbar"> <p><code>The gps device </code>in the car still not sent position!</p> </div>');
    }else{
        var flightPath = new google.maps.Polyline({
            path: listRoute,
            strokeColor: "#FF0000",
            strokeOpacity: 5,
            strokeWeight: 3.7
        });
        flightPath.setMap(map);
    }
}

function createMarkers(locations) {
    for (var i = 0; i < locations.length; i++) {
        var point = locations[i];
        var myLatLng = new google.maps.LatLng(point.lat, point.lon);
        var marker = new google.maps.Marker({
            position: myLatLng,
            map: map,
            icon: 'greencirclemarker.png',
            title: point.speed
        });
    }
}

$(document).ready(function() {
    createRouteMap();
});

</script>
</head>
<body>
<div id="map_canvas" style="height:400px; border:1px 00f solid;"></div>
</body>
</html>

Answer 1

你的“速度”与积分有关。你有几个选择：

添加标记并显示鼠标悬停在标记上的速度（或作为标记的工具提示）
使用自己的鼠标悬停事件处理程序将线条的每个线段渲染为单独的折线。您需要指定如何将速度应用于线段。使用单个折线执行此操作有更复杂的方法，但使用鼠标悬停事件可能会出现性能问题。

折线（路线）悬停上的工具提示

1 个答案: