Javascript 设置边界以显示自定义标记_Javascript_Google Maps Api 3

Javascript 设置边界以显示自定义标记

javascript google-maps-api-3

Javascript 设置边界以显示自定义标记,javascript,google-maps-api-3,Javascript,Google Maps Api 3,我使用下面的代码显示mySQL数据库中给定位置内的标记。我正在尝试设置LatLng界限，以便可以看到每个给定位置的所有标记，但它不起作用，即地图未显示可视地图中的所有标记，并且我还收到一个错误，表示“findid未定义”。作为一个新手，我不确定是代码还是这段代码的位置错了我只是想知道是否有人可以看看这个，让我知道我错在哪里 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtm

我使用下面的代码显示mySQL数据库中给定位置内的标记。我正在尝试设置LatLng界限，以便可以看到每个给定位置的所有标记，但它不起作用，即地图未显示可视地图中的所有标记，并且我还收到一个错误，表示“findid未定义”。作为一个新手，我不确定是代码还是这段代码的位置错了

我只是想知道是否有人可以看看这个，让我知道我错在哪里

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>All Locations</title>
        <link rel="stylesheet" href="css/alllocationsstyle.css" type="text/css" media="all" />
        <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=en"></script>
        <script type="text/javascript"> 
            var customIcons = {
            Artefact: {
            icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
            shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
            },
            Coin: {
            icon: 'http://labs.google.com/ridefinder/images/mm_20_green.png',
            shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
            },
            Jewellery: {
            icon: 'http://labs.google.com/ridefinder/images/mm_20_yellow.png',
            shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
            }
            };

            function load() { 
            var map = new google.maps.Map(document.getElementById("map"), { 
            center: new google.maps.LatLng(54.312195845815246,-4.45948481875007), 
            zoom:14, 
            mapTypeId: 'satellite' 
            }); 

            // Change this depending on the name of your PHP file 
            downloadUrl("phpfile.php", function(data) { 
            var xml = data.responseXML; 
            var markers = xml.documentElement.getElementsByTagName("marker"); 
            for (var i = 0; i < markers.length; i++) { 
            var findid = markers[i].getAttribute("findid");
            var locationid = markers[i].getAttribute("locationid"); 
            var dateoftrip = markers[i].getAttribute("dateoftrip");
            var findcategory = markers[i].getAttribute("findcategory");
            var findname = markers[i].getAttribute("findname");
            var finddescription = markers[i].getAttribute("finddescription");
            var detectorname = markers[i].getAttribute("detectorname");
            var searchheadname = markers[i].getAttribute("searchheadname");
            var detectorsettings = markers[i].getAttribute("detectorsettings");
            var pasref = markers[i].getAttribute("pasref");
            var findimage= markers[i].getAttribute("findimage");
            var additionalcomments= markers[i].getAttribute("additionalcomments");
            var point = new google.maps.LatLng( 
            parseFloat(markers[i].getAttribute("findosgb36lat")), 
            parseFloat(markers[i].getAttribute("findosgb36lon")));
            var icon = customIcons[findcategory] || {}; 
            var marker = new google.maps.Marker({          
            map: map, 
            position: point,
            title: 'Click to view details',
            icon: icon.icon,
            shadow: icon.shadow
            }); 

            } 
            }); 
            } 

            // Creating a LatLngBounds object
            var bounds = new google.maps.LatLngBounds();
            // Looping through the places array
            for (var i = 0; i < findid.length; i += 1) {
            // Extending the bounds object with each LatLng
            bounds.extend(findid[i]);
            }
            // Adjusting the map to new bounding box
            map.fitBounds(bounds)

            function downloadUrl(url, callback) { 
            var request = window.ActiveXObject ? 
            new ActiveXObject('Microsoft.XMLHTTP') : 
            new XMLHttpRequest; 

            request.onreadystatechange = function() { 
            if (request.readyState == 4) { 
            request.onreadystatechange = doNothing; 
            callback(request, request.status); 
            } 
            }; 

            request.open('GET', url, true); 
            request.send(null); 
            } 

            function doNothing() {} 

            </script> 
            </head> 

            <body onLoad="load()">
                <div id="map"></div>
            </body> 
            </html>


所有地点
var customIcons={
人工制品：{
图标：'http://labs.google.com/ridefinder/images/mm_20_red.png',
影子：'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
硬币：{
图标：'http://labs.google.com/ridefinder/images/mm_20_green.png',
影子：'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
珠宝：{
图标：'http://labs.google.com/ridefinder/images/mm_20_yellow.png',
影子：'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
函数加载（）{
var map=new google.maps.map（document.getElementById（“map”），{
中心：新google.maps.LatLng（54.312195845845815246，-4.45948481875007），
缩放：14，
mapTypeId:'卫星'
}); 
//根据PHP文件的名称更改此选项
下载URL（“phpfile.php”，函数（数据）{
var xml=data.responseXML；
var markers=xml.documentElement.getElementsByTagName（“标记”）；
对于（var i=0；i


更新代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>All Locations</title>
        <link rel="stylesheet" href="css/alllocationsstyle.css" type="text/css" media="all" />
        <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=en"></script>
        <script type="text/javascript"> 
            var customIcons = {
            Artefact: {
            icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
            shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
            },
            Coin: {
            icon: 'http://labs.google.com/ridefinder/images/mm_20_green.png',
            shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
            },
            Jewellery: {
            icon: 'http://labs.google.com/ridefinder/images/mm_20_yellow.png',
            shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
            }
            };

            var markers;

            function load() { 
            var map = new google.maps.Map(document.getElementById("map"), { 
            center: new google.maps.LatLng(54.312195845815246,-4.45948481875007), 
            zoom:14, 
            mapTypeId: 'satellite' 
            }); 

            // Change this depending on the name of your PHP file 
            downloadUrl("phpfile.php", function(data) { 
            var xml = data.responseXML; 
            var markers = xml.documentElement.getElementsByTagName("marker"); 
            for (var i = 0; i < markers.length; i++) { 
            var findid = markers[i].getAttribute("findid");
            var locationid = markers[i].getAttribute("locationid"); 
            var dateoftrip = markers[i].getAttribute("dateoftrip");
            var findcategory = markers[i].getAttribute("findcategory");
            var findname = markers[i].getAttribute("findname");
            var finddescription = markers[i].getAttribute("finddescription");
            var detectorname = markers[i].getAttribute("detectorname");
            var searchheadname = markers[i].getAttribute("searchheadname");
            var detectorsettings = markers[i].getAttribute("detectorsettings");
            var pasref = markers[i].getAttribute("pasref");
            var findimage= markers[i].getAttribute("findimage");
            var additionalcomments= markers[i].getAttribute("additionalcomments");
            var point = new google.maps.LatLng( 
            parseFloat(markers[i].getAttribute("findosgb36lat")), 
            parseFloat(markers[i].getAttribute("findosgb36lon")));
            var icon = customIcons[findcategory] || {}; 
            var marker = new google.maps.Marker({          
            map: map, 
            position: point,
            title: 'Click to view details',
            icon: icon.icon,
            shadow: icon.shadow
            }); 
            } 
            }); 
               // Creating a LatLngBounds object
            var bounds = new google.maps.LatLngBounds();
            // Looping through the places array
            for (var i = 0; i < markers.length; i += 1) {
            // Extending the bounds object with each LatLng
            bounds.extend(markers[i]);
            }
            // Adjusting the map to new bounding box
            map.fitBounds(bounds)   
            } 
            function downloadUrl(url, callback) { 
            var request = window.ActiveXObject ? 
            new ActiveXObject('Microsoft.XMLHTTP') : 
            new XMLHttpRequest; 

            request.onreadystatechange = function() { 
            if (request.readyState == 4) { 
            request.onreadystatechange = doNothing; 
            callback(request, request.status); 
            } 
            }; 

            request.open('GET', url, true); 
            request.send(null); 
            } 

            function doNothing() {} 

            </script> 
            </head> 

            <body onLoad="load()">
                <div id="map"></div>
            </body> 
            </html>


所有地点
var customIcons={
人工制品：{
图标：'http://labs.google.com/ridefinder/images/mm_20_red.png',
影子：'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
硬币：{
图标：'http://labs.google.com/ridefinder/images/mm_20_green.png',
影子：'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
珠宝：{
图标：'http://labs.google.com/ridefinder/images/mm_20_yellow.png',
影子：'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
var标记；
函数加载（）{
var map=new google.maps.map（document.getElementById（“map”），{
中心：新google.maps.LatLng（54.312195845845815246，-4.45948481875007），
缩放：14，
mapTypeId:'卫星'
}); 
//根据PHP文件的名称更改此选项
下载URL（“phpfile.php”，函数（数据）{
var xml=data.responseXML；
var markers=xml.documentElement.getElementsByTagName（“标记”）；
对于（var i=0；ifunction load() { 
    var map = new google.maps.Map(document.getElementById("map"), { 
        center: new google.maps.LatLng(54.312195845815246,-4.45948481875007), 
        zoom:14, 
        mapTypeId: 'satellite' 
    });

    var bounds  = new google.maps.LatLngBounds();
    var markers = [];

    downloadUrl("phpfile.php", function(data) { 
        var xml = data.responseXML; 
        var markers = xml.documentElement.getElementsByTagName("marker");
        // loop through the markers in the xml file
        for (var i = 0; i < markers.length; i++) { 
            var point = new google.maps.LatLng( 
                parseFloat(markers[i].getAttribute("findosgb36lat")), 
                parseFloat(markers[i].getAttribute("findosgb36lon"))
            );
            var icon = customIcons[findcategory] || {}; 
            var marker = new google.maps.Marker({          
                map: map, 
                position: point,
                title: 'Click to view details',
                icon: icon.icon,
                shadow: icon.shadow
            });
            // LatLngBounds expects a LatLng object - not a marker object
            bounds.extend(point);
        }
        // fit the map after all the points and markers have been created - i.e. after the loop
        map.fitBounds(bounds);
    });
}