api-examples/google-maps-example.html at master · publicinsightnetwork/api-examples · GitHub

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<html>
<head>
 <title>PIN API + Google Map</title>

 <style type="text/css">
  .error { color: red }
  #stats { margin: 1em }
  body { text-align: center; font-family: verdana,arial,helvetica,'sans-serif'; }
 </style>

 <script type="text/javascript" src="https://www.publicinsightnetwork.org/src/sprintf.min.js"></script>
 <script type="text/javascript" src="https://www.publicinsightnetwork.org/source/js/jquery-1.8.1.min.js"></script>
 <script type="text/javascript" src="https://www.publicinsightnetwork.org/source/js/insights.js"></script>

 <!-- based on http://www.geocodezip.com/v3_example_click2add_infowindow.html -->
 <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
 <script type="text/javascript">
 //<![CDATA[

    // global variables
    var map = null;
    var marker = null;

    var infowindow = new google.maps.InfoWindow({
        size: new google.maps.Size(150,50)
    });

    // A function to create the marker and set up the event window function
    function createMarker(latlng, name, html) {
        var contentString = html;
        var marker = new google.maps.Marker({
            position: latlng,
            map: map,
            draggable: true,
            zIndex: Math.round(latlng.lat()*-100000)<<5
        });

        google.maps.event.addListener(marker, 'click', function() {
            infowindow.setContent(contentString);
            infowindow.open(map,marker);
        });
        google.maps.event.trigger(marker, 'click');
        return marker;
    }

    function initialize() {
        // create the map
        var myOptions = {
            zoom: 8,
            center: new google.maps.LatLng(44.8947, -93.3597),
            mapTypeControl: true,
            mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU},
            navigationControl: true,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

        google.maps.event.addListener(map, 'click', function() {
            infowindow.close();
        });

        google.maps.event.addListener(map, 'click', function(event) {
	    //call function to create marker
            if (marker) {
                marker.setMap(null);
                marker = null;
            }
	    marker = createMarker(event.latLng, "name", "<b>Location</b><br>"+event.latLng);
        });

    }

    function normalize_location(latlong) {
        var lat  = sprintf("%010.6f", latlong.lat() + 90.0);
        var long = sprintf("%010.6f", latlong.lng() + 180.0);
        return { lat: parseFloat(lat), long: parseFloat(long) };
    }

    function populate_map() {
        var query = jQuery('#q').val();
        if (!query || !query.length) {
            jQuery('#search').append('<div class="error">Enter a search term</div>');
            return;
        }
        if (!marker || !marker.getPosition()) {
            jQuery('#search').append('<div class="error">Click on the map</div>');
            return;
        }

        // no errors, so clear.
        jQuery('.error').remove();

        var position = normalize_location(marker.getPosition());
        //console.log(position);

        // copy original
        var query_orig = query;

        // append range to query string
        // this makes a search radius of about 40 miles from the marker
        query += ' ' + sprintf("latitude:(%03d.0000..%03d.0000)", position.lat, position.lat + 1.0);
        query += ' ' + sprintf("longitude:(%03d.0000..%03d.0000)", position.long, position.long + 1.0);

        var uri = 'https://www.publicinsightnetwork.org/air2/api/public/search?callback=?&';
        var params = {
            a: '840ffd8f30eabbe3294adce9d9b97c8d',
            q: query
        };
        uri += jQuery.param(params);
        //console.log(uri);
        jQuery('#stats').html('<img src="//www.publicinsightnetwork.org/source/img/loading.gif"/>');
        jQuery.getJSON(uri, function(resp) {
            //console.log(resp);
            jQuery('#stats').html(resp.total + ' results for ' + query_orig);
            jQuery.each(resp.results, function(idx, r) {
                console.log(r);
                var latlong = new google.maps.LatLng(r.primary_lat, r.primary_long);
                var m = createMarker(latlong, r.uri, r.src_first_name+' '+r.src_last_name+'<br/>'+query_orig);
            });
        });
    }

    jQuery(document).ready(function() {
        initialize();
    });

 //]]>
 </script>

</head>

<body>
    <div id="map_canvas" style="margin: auto; width: 550px; height: 450px"></div>
    <div id="search">
      <input type="text" name="q" id="q" />
      <button onclick="populate_map()">Map it!</button>
    </div>
    <div id="stats"></div>
</body>
</html>