避免对具有多个标记的自定义谷歌地图进行地理编码限制 [英] Avoid geocode limit on custom google map with multiple markers
问题描述
我创建了一个包含大约 150 个标记的自定义地图.在达到地理编码限制之前，它只会绘制大约 20 个左右的图.
I've created a custom map with around 150 markers. It only plots around 20 or so before it hits the geocode limit.
我可以在代码中加入什么以避免达到限制?
What can I incorporate into my code to avoid hitting the limit?
更新:我如何为每个请求添加一个时间延迟，比如 0.25 秒(或任何我能逃脱的最低值)?
UPDATE: How can I add a time delay to each request say 0.25seconds (or whatever the lowest I can get away with)?
我尝试了一些不同的建议，但似乎无法让它们与我的代码一起工作，所以请任何示例使用我的代码.
推荐答案
因此，与其在 for 循环中几乎立即发送所有请求，我认为最好在地理编码返回结果时发送下一个一.如果返回的结果是 OVER_QUERY_LIMIT，则重新发送请求并增加延迟.我还没有找到产生最少 OVER_QUERY_LIMIT 的最佳点超时，但至少它会创建所有标记(对于有效地址).在我的机器上完成大约需要 45 秒左右.
So instead of sending all the requests almost instantly in a for-loop, I thought it might be better that when a geocode returns a result, to send the next one. If the result coming back is a OVER_QUERY_LIMIT, resend the request with an increase on the delay. I haven't found the sweet spot timeout that produces the fewest OVER_QUERY_LIMIT's, but at least it will create all the markers (for valid addresses). It takes about 45 seconds or so to finish on my machine.
<!DOCTYPE html>
<html>
<head>
<link href="http://code.google.com/apis/maps/documentation/javascript/examples/default.css"
rel="stylesheet" type="text/css" />
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var geocoder;
var map;
var infowindow = new google.maps.InfoWindow();
var places = [];
var popup_content = [ /* all your popup_content */];
var address = [/* all of your addresses */];
var address_position = 0;
var timeout = 600;
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(52.40, -3.61);
var myOptions = {
zoom: 8,
center: latlng,
mapTypeId: 'roadmap'
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
addMarker(address_position);
}
function addMarker(position)
{
geocoder.geocode({'address': address[position]}, function(results, status)
{
if (status == google.maps.GeocoderStatus.OK) {
places[position] = results[0].geometry.location;
var marker = new google.maps.Marker({
position: places[position],
map: map
});
google.maps.event.addListener(marker, 'click', function() {
if (!infowindow) {
infowindow = new google.maps.InfoWindow();
}
infowindow.setContent(popup_content[position]);
infowindow.open(map, marker);
});
}
else
{
if (status == google.maps.GeocoderStatus.OVER_QUERY_LIMIT)
{
setTimeout(function() { addMarker(position); }, (timeout * 3));
}
}
address_position++;
if (address_position < address.length)
{
setTimeout(function() { addMarker(address_position); }, (timeout));
}
});
}
</script>
</head>
<body onload="initialize()">
<div id="map_canvas" style="height: 80%; top:10px; border: 1px solid black;"></div>
</body>
</html>
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