代码改变世界

利用 Google API 调用谷歌地图 演示4

2010-08-06 20:18  音乐让我说  阅读(623)  评论(0)  编辑  收藏  举报

代码如下：

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
    <title>演示4</title>
    <style type="text/css">
        html { height: 100%; }
        body { height: 100%; margin: 0px; padding: 0px; }
        #map_canvas { width:50%; height: 50%; margin: 50px auto; }
    </style>
    <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
    <script type="text/javascript">
        var map;
        function initialize()
        {
            var myLatlng = new google.maps.LatLng(-25.363882, 131.044922);
            var myOptions = {
                zoom: 4,
                center: myLatlng,
                mapTypeId: google.maps.MapTypeId.ROADMAP
            }
            map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
            // Add 5 markers to the map at random locations
            var southWest = new google.maps.LatLng(-31.203405, 125.244141);
            var northEast = new google.maps.LatLng(-25.363882, 131.044922);
            var bounds = new google.maps.LatLngBounds(southWest, northEast);
            map.fitBounds(bounds);
            var lngSpan = northEast.lng() - southWest.lng();
            var latSpan = northEast.lat() - southWest.lat();
            for (var i = 0; i < 5; i++)
            {
                var location = new google.maps.LatLng(southWest.lat() + latSpan * Math.random(),southWest.lng() + lngSpan * Math.random());
                var marker = new google.maps.Marker({
                    position: location,
                    map: map
                });
                var j = i + 1;
                marker.setTitle(j.toString());
                attachSecretMessage(marker, i);
            }
        }
        // The five markers show a secret message when clicked
        // but that message is not within the marker's instance data
        function attachSecretMessage(marker, number)
        {
            var message = ["北", "京", "欢", "迎", "你"];
            var infowindow = new google.maps.InfoWindow({ 
                content: message[number]
            });
            google.maps.event.addListener(marker, 'click', function()
            {
                infowindow.open(map, marker);
            });
        }
    </script>

</head>
<body onload="initialize()">
    <div id="map_canvas">
    </div>
</body>
</html>

 

效果图如下：

 

谢谢浏览！