Google Maps – Multiple Custom Markers

• mondererdesign

• February 27, 2016 at 2:53 am

Hello,

I’ve found lots of code for how to add custom markers to Google Maps, but hardly anything about using different markers on the same map. For instance, I may have 4 markers from a repeater field that I want to appear with a green marker, and the rest of the markers related to a custom post type to appear with a gray marker.

I’ve tried a few different methods, like duplicating the marker variable and changing the name and colors, but everything I try breaks some part of the map.

<style type="text/css">

.acf-map {
	width: 100%;
	height: 730px;
}

/* fixes potential theme css conflict */
.acf-map img {
   max-width: inherit !important;
}

</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
<script type="text/javascript">
(function($) {

/*
*  new_map
*
*  This function will render a Google Map onto the selected jQuery element
*
*  @type	function
*  @date	8/11/2013
*  @since	4.3.0
*
*  @param	$el (jQuery element)
*  @return	n/a
*/

function new_map( $el ) {

	// var
	var $markers = $el.find('.marker');

	// vars
	var args = {
		zoom		: 5,
      scrollwheel: false,
		center: {lat: 39.8, lng: 98.5795},
		mapTypeId	: google.maps.MapTypeId.ROADMAP,
		 styles: [
    {
        "featureType": "all",
        "elementType": "all"
	};

	// create map
	var map = new google.maps.Map( $el[0], args);

	// add a markers reference
	map.markers = [];

	// add markers
	$markers.each(function(){

    	add_marker( $(this), map );

	});

	// center map
	center_map( map );

	// return
	return map;

}

/*
*  add_marker
*
*  This function will add a marker to the selected Google Map
*
*  @type	function
*  @date	8/11/2013
*  @since	4.3.0
*
*  @param	$marker (jQuery element)
*  @param	map (Google Map object)
*  @return	n/a
*/

function add_marker( $marker, map ) {

	// var
	var latlng = new google.maps.LatLng( $marker.attr('data-lat'), $marker.attr('data-lng') );

	// // create marker
	// var marker = new google.maps.Marker({
	// 	position	: latlng,
	// 	map			: map
	// });

  var grayCircle = {
  	//path: 'M -1,0 A 1,1 0 0 0 1,0 1,1 0 0 0 -1,0 z',
    path: google.maps.SymbolPath.CIRCLE,
    fillColor: '#888888',
    fillOpacity: 1,
    scale: 3,
    strokeColor: "#888888",
	 strokeWeight: 3
  };

  var marker = new google.maps.Marker({
    position: latlng,
    icon: grayCircle,
    map: map
  });

	// add to array
	map.markers.push( marker );

	// if marker contains HTML, add it to an infoWindow
	if( $marker.html() )
	{
		// create info window
		var infowindow = new google.maps.InfoWindow({
			content		: $marker.html()
		});

		// show info window when marker is clicked
		google.maps.event.addListener(marker, 'click', function() {

			infowindow.open( map, marker );

		});
	}

}

/*
*  center_map
*
*  This function will center the map, showing all markers attached to this map
*
*  @type	function
*  @date	8/11/2013
*  @since	4.3.0
*
*  @param	map (Google Map object)
*  @return	n/a
*/

function center_map( map ) {

	// vars
	var bounds = new google.maps.LatLngBounds();

	// loop through all markers and create bounds
	$.each( map.markers, function( i, marker ){

		var latlng = new google.maps.LatLng( marker.position.lat(), marker.position.lng() );

		bounds.extend( latlng );

	});

	// only 1 marker?
	if( map.markers.length == 1 )
	{
		// set center of map
	    map.setCenter( bounds.getCenter() );
	    map.setZoom( 5 );
	}
	else
	{
		// fit to bounds
		map.fitBounds( bounds );
	}

}

/*
*  document ready
*
*  This function will render each map when the document is ready (page has loaded)
*
*  @type	function
*  @date	8/11/2013
*  @since	5.0.0
*
*  @param	n/a
*  @return	n/a
*/
// global var
var map = null;

$(document).ready(function(){

	$('.acf-map').each(function(){

		// create map
		map = new_map( $(this) );

	});

});

})(jQuery);
</script>

	<div class="portfolio-map">

	<div class="acf-map">

			<?php
			// check if the repeater field has rows of data
			if( have_rows('site_details') ):
			 	// loop through the rows of data
			    while ( have_rows('site_details') ) : the_row();
			        // display a sub field value
			        $siteName = get_sub_field('site_name');
			        $siteLink = get_sub_field('site_link');
			        $siteAddress = get_sub_field('site_address');
			?>
				<!-- I would like this set of information to have a green marker --> <div class="marker" data-lat="<?php echo $siteAddress['lat']; ?>" data-lng="<?php echo $siteAddress['lng']; ?>">
					<h4><?php echo $siteName; ?></h4>
				</div>
		<?php
			endwhile;
				else :
				    // no rows found
				endif;
		?>

			<?
				$args = array(
				  'post_type' => 'organization',
				  'posts_per_page' => 99
				);

				$locationMap = new WP_Query($args);
				$count = 0;
			?>

			  <? if($locationMap->have_posts()) : while($locationMap->have_posts()) : $locationMap->the_post();
			      $count++;
			      $location = get_field('organization_address');
			      $siteLocation = get_field('site_address');

			   ?>

			  	<!-- I would like this set of information to have a gray marker --> <div class="marker" data-lat="<?php echo $location['lat']; ?>" data-lng="<?php echo $location['lng']; ?>">
					<a href="<?php the_permalink(); ?>">
						<img class="popup" src="<?php the_field('logo'); ?>"/>
					</a>
					<div class="popup-details">
						<?php the_field('map_popup_details'); ?>
					</div>
					<div class="popup-link">
						<a href="<?php the_permalink(); ?>">Learn More </a>
					</div>
				</div>
			  <? endwhile; endif; ?>

		<?php wp_reset_query(); ?>

		</div>
	</div>

• James

• February 28, 2016 at 4:26 pm

Hi @mondererdesign

If you want to customize the look of the map, please ask the Google Map community about that.

Thanks 🙂

• mondererdesign

• March 1, 2016 at 1:03 am

I did. Someone in the Google Maps community told me to try this forum. I guess I’m on my own! I’ll try Stack Overflow. Thanks.

• James

• March 1, 2016 at 8:41 pm

Hi @mondererdesign

That’s weird. I believe you can get the latitude and longitude from ACF correctly, right? The problem is you want to set a different color for certain markers. If that’s right, I believe you need to use Google maps functions, not ACF functions. So, asking it to the Google Map community should be more appropriate.

I hope this makes sense.