In the ClusterIcon class, add the following code AFTER the clusterclick trigger:
// Trigger the clusterclick event.
google.maps.event.trigger(markerClusterer, 'clusterclick', this.cluster_);
var zoom = this.map_.getZoom();
var maxZoom = markerClusterer.getMaxZoom();
// if we have reached the maxZoom and there is more than 1 marker in this cluster
// use our onClick method to popup a list of options
if (zoom >= maxZoom && this.cluster_.markers_.length > 1) {
return markerClusterer.onClickZoom(this);
}
Then, in your initialize() function where you initialize the map and declare your MarkerClusterer object:
function multiChoice(mc) {
var cluster = mc.clusters_;
// if more than 1 point shares the same lat/long
// the size of the cluster array will be 1 AND
// the number of markers in the cluster will be > 1
// REMEMBER: maxZoom was already reached and we can't zoom in anymore
if (cluster.length == 1 && cluster[0].markers_.length > 1)
{
var markers = cluster[0].markers_;
for (var i=0; i < markers.length; i++)
{
// you'll probably want to generate your list of options here...
}
return false;
}
return true;
}
// BEGIN MODIFICATION (around line 715)
MarkerClusterer.prototype.onClick = function() {
return true;
};
// END MODIFICATION
In the ClusterIcon class, add the following code AFTER the click/clusterclick trigger:
// EXISTING CODE (around line 143)
google.maps.event.trigger(mc, "click", cClusterIcon.cluster_);
google.maps.event.trigger(mc, "clusterclick", cClusterIcon.cluster_); // deprecated name
// BEGIN MODIFICATION
var zoom = mc.getMap().getZoom();
// Trying to pull this dynamically made the more zoomed in clusters not render
// when then kind of made this useless. -NNC @ BNB
// var maxZoom = mc.getMaxZoom();
var maxZoom = 15;
// if we have reached the maxZoom and there is more than 1 marker in this cluster
// use our onClick method to popup a list of options
if (zoom >= maxZoom && cClusterIcon.cluster_.markers_.length > 1) {
return mc.onClick(cClusterIcon);
}
// END MODIFICATION
Then, in your initialize() function where you initialize the map and declare your MarkerClusterer object:
google.maps.event.trigger(mc, "click", cClusterIcon.cluster_);
google.maps.event.trigger(mc, "clusterclick", cClusterIcon.cluster_); // deprecated name
// BEGIN MODIFICATION
var zoom = mc.getMap().getZoom();
// Trying to pull this dynamically made the more zoomed in clusters not render
// when then kind of made this useless. -NNC @ BNB
// var maxZoom = mc.getMaxZoom();
var maxZoom = 15;
// if we have reached the maxZoom and there is more than 1 marker in this cluster
// use our onClick method to popup a list of options
if (zoom >= maxZoom && cClusterIcon.cluster_.markers_.length > 1) {
var markers = cClusterIcon.cluster_.markers_;
var a = 360.0 / markers.length;
for (var i=0; i < markers.length; i++)
{
var pos = markers[i].getPosition();
var newLat = pos.lat() + -.00004 * Math.cos((+a*i) / 180 * Math.PI); // x
var newLng = pos.lng() + -.00004 * Math.sin((+a*i) / 180 * Math.PI); // Y
var finalLatLng = new google.maps.LatLng(newLat,newLng);
markers[i].setPosition(finalLatLng);
markers[i].setMap(cClusterIcon.cluster_.map_);
}
cClusterIcon.hide();
return ;
}
// END MODIFICATION
var map;
var markers = [];
var infoWindow;
function initialize() {
var center = new google.maps.LatLng(-29.6833300, 152.9333300);
var mapOptions = {
zoom: 5,
center: center,
panControl: false,
zoomControl: false,
mapTypeControl: false,
scaleControl: false,
streetViewControl: false,
overviewMapControl: false,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
$.getJSON('jsonbackend.php', function(data) {
infoWindow = new google.maps.InfoWindow();
$.each(data, function(key, val) {
if(val['LATITUDE']!='' && val['LONGITUDE']!='')
{
// Set the coordonates of the new point
var latLng = new google.maps.LatLng(val['LATITUDE'],val['LONGITUDE']);
//Check Markers array for duplicate position and offset a little
if(markers.length != 0) {
for (i=0; i < markers.length; i++) {
var existingMarker = markers[i];
var pos = existingMarker.getPosition();
if (latLng.equals(pos)) {
var a = 360.0 / markers.length;
var newLat = pos.lat() + -.00004 * Math.cos((+a*i) / 180 * Math.PI); //x
var newLng = pos.lng() + -.00004 * Math.sin((+a*i) / 180 * Math.PI); //Y
var latLng = new google.maps.LatLng(newLat,newLng);
}
}
}
// Initialize the new marker
var marker = new google.maps.Marker({map: map, position: latLng, title: val['TITLE']});
// The HTML that is shown in the window of each item (when the icon it's clicked)
var html = "<div id='iwcontent'><h3>"+val['TITLE']+"</h3>"+
"<strong>Address: </strong>"+val['ADDRESS']+", "+val['SUBURB']+", "+val['STATE']+", "+val['POSTCODE']+"<br>"+
"</div>";
// Binds the infoWindow to the point
bindInfoWindow(marker, map, infoWindow, html);
// Add the marker to the array
markers.push(marker);
}
});
// Make a cluster with the markers from the array
var markerCluster = new MarkerClusterer(map, markers, { zoomOnClick: true, maxZoom: 15, gridSize: 20 });
});
}
function markerOpen(markerid) {
map.setZoom(22);
map.panTo(markers[markerid].getPosition());
google.maps.event.trigger(markers[markerid],'click');
switchView('map');
}
google.maps.event.addDomListener(window, 'load', initialize);
// This code is in swift
for loop markers
{
//create marker
let mapMarker = GMSMarker()
mapMarker.groundAnchor = CGPosition(0.5, 0.5)
mapMarker.position = //set the CLLocation
//instead of setting marker.icon set the iconView
let image:UIIMage = UIIMage:init(named:"filename")
let imageView:UIImageView = UIImageView.init(frame:rect(0,0, ((image.width/2 * markerIndex) + image.width), image.height))
imageView.contentMode = .Right
imageView.image = image
mapMarker.iconView = imageView
mapMarker.map = mapView
}
为了补充 Matthew Fox 的狡猾的天才答案,我在设置标记对象时为每个 lat 和 lng 添加了一个小的随机偏移量。例如:
new LatLng(getLat()+getMarkerOffset(), getLng()+getMarkerOffset()),
private static double getMarkerOffset(){
//add tiny random offset to keep markers from dropping on top of themselves
double offset =Math.random()/4000;
boolean isEven = ((int)(offset *400000)) %2 ==0;
if (isEven) return offset;
else return -offset;
}
//This is the value to shift the pips by. I found this worked best with markerClusterer
$add_to_latlng = 0.00003;
while ($query->have_posts()) {
$query->the_post();
$meta = get_post_meta(get_the_ID(), "postcode", true); //uses an acf field to store location
$lat = $meta["lat"];
$lng = $meta["lng"];
if(in_array($meta["lat"],$lat_checker)){ //check if this meta matches
//if matches then update the array to a new value (current value + shift value)
// This is using the lng value for a horizontal line of pips, use lat for vertical, or both for a diagonal
if(isset($latlng_storer[$meta["lng"]])){
$latlng_storer[$meta["lng"]] = $latlng_storer[$meta["lng"]] + $add_to_latlng;
$lng = $latlng_storer[$meta["lng"]];
} else {
$latlng_storer[$meta["lng"]] = $meta["lng"];
$lng = $latlng_storer[$meta["lng"]];
}
} else {
$lat_checker[] = $meta["lat"]; //just for simple checking of data
$latlng_storer[$meta["lat"]] = floatval($meta["lat"]);
$latlng_storer[$meta["lng"]] = floatval($meta["lng"]);
}
$entry[] = [
"lat" => $lat,
"lng" => $lng,
//...Add all the other post data here and use this array for the pips
];
} // end query