Google js api different marker image for each marker dynamically

Question

I am using he following js for adding google map, which pulls all my locations from my database within the foreach loop, I want each markers to have a different icon which will be stores in a by field.

Lets say for example I have a field called filename which will store the image path/name (icon.jpg).

I was wondering how I can adapt this script written by August Li to do that.

 <script type="text/javascript">
            //Sample code written by August Li
            var icon = new google.maps.MarkerImage("http://maps.google.com/mapfiles/ms/micons/blue.png",
                       new google.maps.Size(32, 32), new google.maps.Point(0, 0),
                       new google.maps.Point(16, 32));
            var center = null;
            var map = null;
            var currentPopup;
            var bounds = new google.maps.LatLngBounds();
            function addMarker(lat, lng, info) {
                var pt = new google.maps.LatLng(lat, lng);
                bounds.extend(pt);
                var marker = new google.maps.Marker({
                    position: pt,
                    icon: icon,
                    map: map
                });
                var popup = new google.maps.InfoWindow({
                    content: info,
                    maxWidth: 300
                });
                google.maps.event.addListener(marker, "click", function() {
                    if (currentPopup != null) {
                        currentPopup.close();
                        currentPopup = null;
                    }
                    popup.open(map, marker);
                    currentPopup = popup;
                });
                google.maps.event.addListener(popup, "closeclick", function() {
                    map.panTo(center);
                    currentPopup = null;
                });
            }           
            function initMap() {
                map = new google.maps.Map(document.getElementById("map"), {
                    center: new google.maps.LatLng(0, 0),
                    zoom: 14,
                    mapTypeId: google.maps.MapTypeId.ROADMAP,
                    mapTypeControl: true,
                    mapTypeControlOptions: {
                        style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR
                    },
                    navigationControl: true,
                    navigationControlOptions: {
                        style: google.maps.NavigationControlStyle.ZOOM_PAN
                    }
                });
<?php

foreach ($dataProvider->models as $model) {
    echo "addMarker({$model->lat}, {$model->lon}, '<b>$model->name</b><br />$model->website');";
}

?>
 center = bounds.getCenter();
     map.fitBounds(bounds);

     }
     </script>

Answer 1

You would just need a function like:

function makeIcon(filename) {
    return new google.maps.MarkerImage(
                   "http://example.com/path/to/icons/" + filename,
                   new google.maps.Size(32, 32), new google.maps.Point(0, 0),
                   new google.maps.Point(16, 32)
               );
}

updated of course with the path to the location of your icon files.

Then you would need to update the addMarker function to accept an icon parameter:

        function addMarker(lat, lng, gicon, info) {
            var pt = new google.maps.LatLng(lat, lng);
            bounds.extend(pt);
            var marker = new google.maps.Marker({
                position: pt,
                icon: gicon,
                map: map
            });
            ...

Then in your PHP loop, you would need to add the makeIcon() call separately. So, for example,

<?php
foreach ($dataProvider->models as $model) {
    echo "gicon = makeIcon(your filename);";
    echo "addMarker({$model->lat}, {$model->lon}, gicon, '<b>$model->name</b><br />$model->website');";
}
?>

This echos the code to get the gIcon object based on your filename and then passes it to the modified addMarker.