代码改变世界

利用 Google API 调用谷歌地图 演示10

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代码如下：

 

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<!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>
    <title>演示10</title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <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=true&key=ABQIAAAAtzdEfkm0e6fFv-EqYY-XJRQdNSJsfUEFgMWL1fb2TrZ8t0A2pRQ10wAqRsmxpdHzRsHswMJAFavZ6g"></script>
    <!-- sensor 参数表示是否检测用户的地理位置 -->
    <script type="text/javascript">
        var map;
        var latlng = new google.maps.LatLng(22.95, 113.4); /* 广州市番禺区，分别为纬度和经度 */
 
        /**
        * The HomeControl adds a control to the map that simply
        * returns the user to Chicago. This constructor takes
        * the control DIV as an argument.
        */
 
        function HomeControl(controlDiv, map)
        {
 
            // Set CSS styles for the DIV containing the control
            // Setting padding to 5 px will offset the control
            // from the edge of the map
            controlDiv.style.padding = '5px';
 
            // Set CSS for the control border
            var controlUI = document.createElement('DIV');
            controlUI.style.backgroundColor = 'white';
            controlUI.style.borderStyle = 'solid';
            controlUI.style.borderWidth = '2px';
            controlUI.style.cursor = 'pointer';
            controlUI.style.textAlign = 'center';
            controlUI.title = '点击返回到最初的位置';
            controlDiv.appendChild(controlUI);
 
            // Set CSS for the control interior
            var controlText = document.createElement('DIV');
            controlText.style.fontFamily = 'Arial,sans-serif';
            controlText.style.fontSize = '12px';
            controlText.style.paddingLeft = '4px';
            controlText.style.paddingRight = '4px';
            controlText.innerHTML = '<b>Home</b>';
            controlUI.appendChild(controlText);
 
            // Setup the click event listeners: simply set the map to
            // Chicago
            google.maps.event.addDomListener(controlUI, 'click', function()
            {
                map.setCenter(latlng);
                map.setZoom(12);
            });
        }
        function initialize()
        {
            var myOptions = {
                zoom: 12,    /* zoom 的取值范围为：0-19，表示范围最广，19表示范围最小但同时最详细 */
                center: latlng,
                mapTypeControlOptions:
                {
                    style: google.maps.MapTypeControlStyle.DROPDOWN_MENU
                },
                navigationControlOptions:
                {
                    style: google.maps.NavigationControlStyle.SMALL     /* 已最简单的形式显示缩放滚动条 */
                },
                mapTypeId: google.maps.MapTypeId.ROADMAP
            };
            map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
            var homeControlDiv = document.createElement('DIV');
            var homeControl = new HomeControl(homeControlDiv, map);
 
            homeControlDiv.index = 1;
            map.controls[google.maps.ControlPosition.TOP_RIGHT].push(homeControlDiv);
        }
    </script>
</head>
<body onload="initialize()">
    <div id="map_canvas">
    </div>
</body>
</html>

 

效果图如下：

 

谢谢浏览！

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