Warning: file_get_contents(/data/phpspider/zhask/data//catemap/0/react-native/7.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Google maps 多段线(管线)悬停时的工具提示_Google Maps_Google Maps Api 3 - Fatal编程技术网

Google maps 多段线(管线)悬停时的工具提示

Google maps 多段线(管线)悬停时的工具提示,google-maps,google-maps-api-3,Google Maps,Google Maps Api 3,我做了​​路线在地图上。使用一些坐标生成的路线,这些坐标包含附加信息(速度)。我想当路线悬停时,会出现一个工具提示,显示这些坐标处的信息(速度)。我搞不清楚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/

我做了​​路线在地图上。使用一些坐标生成的路线,这些坐标包含附加信息(速度)。我想当路线悬停时,会出现一个工具提示,显示这些坐标处的信息(速度)。我搞不清楚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>
你的“速度”与积分相关联。您有两个选择:

  • 添加标记并在标记上方的鼠标上显示速度(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直线的每一段渲染为单独的多段线。您需要指定如何将速度应用于线段。使用单个多段线有更复杂的方法,但是使用鼠标悬停事件可能会有性能问题


  • 对于第一个选项,是否意味着我必须创建标记作为点的数量?我的意思是,如果我有10个点,那么我必须创建10个标记。是这样吗?是的。这似乎是最简单的(因为速度与这些联系在一起)。谢谢geocodezip先生,这很有效。我已经编辑了我的问题并插入了正确的代码。当我有大约25000个点(坐标)时,显示地图的速度会非常慢。我怎样才能使它更快?或者最好为这个问题创建新的线索?这是另一个问题。对于25000个点,您可能希望在平铺上渲染线条(在服务器上或使用渲染为平铺的Kmlayer或FusionTablesLayer),问题将是创建鼠标悬停处理程序,在这种情况下会更复杂。请参阅文档的“文章”部分。