此问题与Google Maps Marker Clusterer有关。我不知道我的标记聚类器的位置是否关闭，或者什么，但它没有通过。我收到错误：Uncaught TypeError: Can not read property of 'icon' of undefined.
当标记聚类器代码不到位时，不会出现此错误。
链接到页面以供参考：http://exilebrewing.com/locations/
有谁知道为什么会这样？任何见解都表示赞赏！
<?php // Index template
get_header(); ?>
<div class="twelve column">
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<div class="intro"> </div>
<?php the_content(); ?>
<div>
<header class="clearfix"></header>
<div id="mapcanvas"></div>
<?php
// For creating multiple, customized loops.
// http://codex.wordpress.org/Class_Reference/WP_Query
$custom_query = new WP_Query('post_type=locations'); // exclude category 9
while($custom_query->have_posts()) : $custom_query->the_post(); ?>
<?php if(get_field('link')): ?>
<div>
<?php while(has_sub_field('link')): ?>
<div>
<p><?php the_sub_field('url'); ?></p>
</div>
<?php endwhile; ?>
</div>
<?php endif; ?>
<?php endwhile; ?>
<?php wp_reset_postdata(); // reset the query ?>
<?php
function get_single_term($post_id, $taxonomy)
{
$terms = wp_get_object_terms($post_id, $taxonomy);
if(!is_wp_error($terms)) {
return '<a href="'.get_term_link($terms[0]->slug, $taxonomy).'">'.$terms[0]->name.'</a>';
}
}
$i = 0;
// For creating multiple, customized loops.
// http://codex.wordpress.org/Class_Reference/WP_Query
$custom_query = new WP_Query('post_type=location&posts_per_page=-1');
while($custom_query->have_posts()) : $custom_query->the_post();
$title = get_the_title(); // Location title
$map = get_field('location'); // ACF location contains address and coordinates
$terms = strip_tags( get_the_term_list( $post->ID, 'distributors', '', ' & ' )); // Get distributor terms and rm links
$info = '<strong>' . $title . '</strong><br>' . $map['address']; // Info window content
$link = get_field('link');
if($link){
$info .= '<br><a href="http://'. $link .'">'. $link .'</a>';
}
$location[$i][0] = $title; // Store the post title
$location[$i][1] = $map['coordinates']; // Store the ACF coordinates
$location[$i][2] = json_encode($info); // Store info window content
$location[$i][3] = strip_tags( get_single_term( $post->ID, 'distributors' )); // Get first term for marker icon
$i ++;
endwhile; ?>
<?php wp_reset_postdata(); // reset the query ?>
<script type="text/javascript">
function initialize() {
var myLatLng = new google.maps.LatLng(41.583013,-93.63701500000002);
var bounds = new google.maps.LatLngBounds();
var styles = [
{
stylers: [
{ saturation: -99.9 }
]
}
];
// Create a new StyledMapType object, passing it the array of styles,
// as well as the name to be displayed on the map type control.
var styledMap = new google.maps.StyledMapType(styles, {name: 'exile'});
// Create a map object, and include the MapTypeId to add
// to the map type control.
var mapOptions = {
mapTypeId: 'roadmap',
center: myLatLng,
zoom: 14,
disableDefaultUI: false,
scrollwheel: true,
draggable: true
};
// Display a map on the page
var map = new google.maps.Map(document.getElementById('mapcanvas'), mapOptions);
//var mc = new MarkerClusterer(map);
map.setTilt(45);
//Associate the styled map with the MapTypeId and set it to display.
map.mapTypes.set('exile', styledMap);
map.setMapTypeId('exile');
// Marker icons
typeObject = {
"Others" : {
"icon" : new google.maps.MarkerImage('http://exilebrewing.com/site/img/beer-mug.png', new google.maps.Size(18,26), new google.maps.Point(0,0), new google.maps.Point(9,26)),
"shadow" : new google.maps.MarkerImage('http://maps.google.com/mapfiles/shadow50.png', new google.maps.Size(40,34))
}
}
var markers = [
];
for (var i = 0; i < 100; i++) {
var dataPhoto = data.photos[i];
var latLng = new google.maps.LatLng(dataPhoto.latitude, dataPhoto.longitude);
var marker = new google.maps.Marker({
position: latLng
});
markers.push(marker);
}
var markerCluster = new MarkerClusterer(map, markers);
// Info Window Content
var infoWindowContent = [
["<strong>Exile Brewing Co.</strong><br>1514 Walnut Street, Des Moines"],
<?php
if (count($location)>0) {
foreach ($location as $key => $value){
if ($key < (count($location)-1)) {
echo '[' . $location[$key][2] . '], ' . "\n";
} else {
echo '[' . $location[$key][2] . ']';
}
}
}
?>
];
// Display multiple markers on a map
var infoWindow = new google.maps.InfoWindow(), marker, i;
// Loop through our array of markers & place each one on the map
for( i = 0; i < markers.length; i++ ) {
var position = new google.maps.LatLng(markers[i][1], markers[i][2]); // ACF coordinates
var icon = typeObject[markers[i][3]]['icon'];
var shadow = typeObject[markers[i][3]]['shadow'];
bounds.extend(position);
marker = new google.maps.Marker({
position: position,
map: map,
title: markers[i][0],
icon: icon,
shadow: shadow
});
// Allow each marker to have an info window
google.maps.event.addListener(markers, 'click', (function(markers, i) {
return function() {
infoWindow.setContent(infoWindowContent[i][0]);
infoWindow.open(map, markers);
}
})(markers, i));
// Automatically center the map fitting all markers on the screen
//map.fitBounds(bounds);
}
// Override our map zoom level once our fitBounds function runs (Make sure it only runs once)
var boundsListener = google.maps.event.addListener((map), 'bounds_changed', function(event) {
this.setZoom(15);
google.maps.event.removeListener(boundsListener);
});
};
google.maps.event.addDomListener(window, 'load', initialize);
</script>
<footer class="clearfix"></footer>
<?php endwhile;?>
<?php endif; ?>
</div>
</div>
<?php get_footer(); ?>
答案 0 :(得分：2)
您正在将google.maps.Markers推送到标记数组（不是google.maps.Markers.MarkerClusterer需要一系列google.maps.Markers。
在全球范围内：
var gmarkers = [];
当你创建标记时，将它推到这个新数组上（不到标记数组的末尾）：
var marker = new google.maps.Marker({
position: latLng
});
gmarkers.push(marker);
使用新阵列初始化标记聚类器：
var markerCluster = new MarkerClusterer(map, gmarkers);