Google maps API: JSON to jQuery
Google maps API: JSON to jQuery
我有麻烦让我的标记显示使用谷歌地图API V3。
这是我的JavaScript:
function getMap(zoom, center) {
var myOptions = {
zoom: zoom,
center: center,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map"), myOptions);
var marker = new google.maps.Marker({ position: centerBegin })
$.getJSON('json/markers.json', function (data) {
$.each(data, function (i, marker) {
var markerOptions = { map: map, position: new google.maps.LatLng(marker.latitude, marker.longtitude) , title: 'test'};
var marker = new google.maps.Marker(markerOptions);
/*var marker = new google.maps.Marker({
position: new google.maps.LatLng(marker.latitude, marker.longtitude),
content: i.toString(),
map: map,
title: 'test'
});*/
});
});
}
这是我的JSON文件:{"markers": [
{"text":"Ondertekenen koopverkoopcontract", "latitude":-12.917239, "longtitude":-38.48209},
{"text":"Openen documentair krediet", "latitude":51.218584, "longtitude":4.40413},
{"text":"Transport van producent naar haven Salvador", "latitude":51.22952, "longtitude":4.411617},
{"text":"Vertrek naar haven Antwerpen", "latitude":-12.968114, "longtitude":-38.511543},
{"text":"Aankomst haven Antwerpen + vertrek naar Transibel", "latitude":51.22952, "longtitude":4.411617},
{"text":"Aankomst Transibel", "latitude":51.094863, "longtitude":4.12973},
{"text" : "center point", "latitude":28.767659, "longtitude":-31.640625}
]}
我在地图上看不到任何标记。有人能帮我一下吗? 您发布的示例代码有两个问题。
-
当你真正想迭代
data['markers']
时,迭代data
。如果你看看你的JSON文件,你会看到它不是一个array
,而是一个object
,其markers
元素持有一个array
的标记信息。 -
过度使用
marker
变量,如graphicdivine指出的
看起来您在each
循环中重新声明了marker
,如下所示。
$.each(data, function (i, marker) {
//--------------------------^
// [...]
var marker = new google.maps.Marker(markerOptions);
//--------^
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