gmaps4rails 启用集群

Question

如何启用集群而不是显示集群的标记？例如：https://www.police.uk/metropolitan/00BK17N/crime/

users_controller

class UsersController < ApplicationController
  def index
    @users = User.all
    @hash = Gmaps4rails.build_markers(@users) do |user, marker|
      marker.lat user.latitude
      marker.lng user.longitude
      marker.infowindow user.description
    end
  end
end

index.html.erb

<div id="map-container">
  <div id="map-canvas"></div>
</div>

<script>
$(document).ready(function(){
  handler = Gmaps.build('Google');
  handler.buildMap({ provider: {}, internal: {id: 'map-canvas'}}, function(){
    markers = handler.addMarkers(<%=raw @hash.to_json %>)
    handler.bounds.extendWith(markers);
    handler.fitMapToBounds(markers);
    if(navigator.geolocation)
      navigator.geolocation.getCurrentPosition;
  });
});
</script>

感谢您的帮助

Answer 1

你试过了吗？ https://github.com/apneadiving/Google-Maps-for-Rails/wiki/Markers#displaying-your-markers

只需传递 do_clustering => true 即可启用它。默认为假。 示例：

<%= gmaps("markers" => { "data" => @markers, "options" => { "do_clustering" => true } }) %>