data-tools-2014/map.html at master · MITBlueprint/data-tools-2014 · GitHub

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<!DOCTYPE html>
<html>

<head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
    html {
        height: 100%
    }
    body {
        height: 100%;
        margin: 0;
        padding: 0;
        font-family:"Open Sans", "Roboto", "Tahoma", sans-serif;
    }
    #map-canvas {
        height: 100%;
    }
    #info {
        position: absolute;
        bottom: 0;
        right: 0;
        background: #fff;
        padding: 5px;
        z-index:99;
        text-align: right;
    }
    #info a {
    }
    h2 {
        font-size: 14px;
        margin: 0;
        padding: 0;
    }
    </style>
    <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=geometry&sensor=false">
    </script>
    <script type="text/javascript" src="highschools.js">
    </script>
    <script type="text/javascript">
    var map;
    var totalSchools = 0;
    var totalCount = 0;
    var Boston = new google.maps.LatLng(42.358431, -71.059773);
    var USA = new google.maps.LatLng(39.232253, -96.020508);

    function initialize() {
        var mapOptions = {
            center: USA,
            zoom: 5,
            scrollwheel: true,
            minZoom: 5,
            maxZoom: 12
        };

        map = new google.maps.Map(document.getElementById("map-canvas"),
            mapOptions);

        var FivehCircleOptions = {
            strokeColor: "#FFFF00",
            strokeOpacity: 0.8,
            strokeWeight: 1,
            fillColor: "#FFFF00",
            fillOpacity: 0.1,
            map: map,
            clickable: false,
            center: Boston,
            radius: 500000
        };
        var FivehCircle = new google.maps.Circle(FivehCircleOptions);


        var maCircleOptions = {
            strokeColor: "#00FF00",
            strokeOpacity: 0.8,
            strokeWeight: 1,
            fillColor: "#00FF00",
            fillOpacity: 0.15,
            map: map,
            clickable: false,
            center: Boston,
            radius: 100000
        };
        var maCircle = new google.maps.Circle(maCircleOptions);


        // google.maps.event.addListener(maCircle, 'click', function() {
        //     map.setZoom(12);
        //     map.panTo(Boston);
        // });

        var bostonCircleOptions = {
            strokeColor: "#00FFFF",
            strokeOpacity: 0.8,
            strokeWeight: 1,
            fillColor: "#00FFFF",
            fillOpacity: 0.2,
            map: map,
            clickable: false,
            center: Boston,
            radius: 10000
        };
        var bostonCircle = new google.maps.Circle(bostonCircleOptions);


        var i = 0;

        for (var name in highschools) {

            i++;

            totalSchools++;
            totalCount += highschools[name].count;

            var locationColor = 0;
            var distanceFromBoston = google.maps.geometry.spherical.computeDistanceBetween(Boston, highschools[name].center);

            if (distanceFromBoston < 100000) {
                locationColor = '#2400e0';
            } else if (highschools[name].count > 1) {
                locationColor = '#8d1168';
            } else {
                locationColor = '#FF0000';
            }

            var highschoolOptions = {
                strokeColor: locationColor,
                strokeOpacity: 1,
                strokeWeight: 3,
                fillColor: locationColor,
                fillOpacity: 0.5,
                map: map,
                clickable: true,
                center: highschools[name].center,
                radius: Math.log(highschools[name].count + 1) * (1 / (map.getZoom() - 4)) * 30000
            };


            var hsCircle = new google.maps.Circle(highschoolOptions);
            addInfoWindow(hsCircle, name, highschools[name].count, distanceFromBoston);
            addCircleZoom(hsCircle, highschools[name].count);

        };

        var infowindow = new google.maps.InfoWindow({
            content: '<h2>Total Schools</h2>' + totalSchools + '<h2>Total Students</h2>' + totalCount,
            position: new google.maps.LatLng(28.917923, -122.849609)
        });

        infowindow.open(map);

    }

    google.maps.event.addDomListener(window, 'load', initialize);

    function addCircleZoom(circle, count) {
        google.maps.event.addListener(map, 'zoom_changed', function() {
            var newzoom = map.getZoom();
            if (newzoom == 8) {
                circle.setRadius(3000);
            } else if (newzoom == 9) {
                circle.setRadius(1000);
            } else if (newzoom >= 10) {
                circle.setRadius(500);
            } else {
                circle.setRadius(Math.log(count + 1) * (1 / (newzoom - 4)) * 30000);
            }
        });
    }

    function addInfoWindow(hsCircle, name, count, dist) {
        var studentPlural = " students ";
        if (count == 1) {
            studentPlural = " student ";
        }
        var hsInfo = new google.maps.InfoWindow({
            content: '<h2>' + name + '</h2>' + count + studentPlural + " &nbsp;&nbsp; | &nbsp;&nbsp; dist: " + (Math.round(dist / 1000, 0)) + "km",
            disableAutoPan: true
        });

        google.maps.event.addListener(hsCircle, 'mouseover', function() {
            var infocenter = hsCircle.getCenter();
            if (map.getZoom() <= 6) {
                var p = infocenter.lat() + 0.1;
            } else {
                var p = infocenter.lat() + 0.02;
            }
            hsInfo.setPosition(new google.maps.LatLng(p, infocenter.lng()));
            hsInfo.open(map);
        });

        google.maps.event.addListener(hsCircle, 'click', function() {
            map.panTo(hsCircle.getCenter());
            map.setZoom(7);
        });

        google.maps.event.addListener(hsCircle, 'mouseout', function() {
            setTimeout(function() {
                hsInfo.close();
            }, 300);
        });
    }
    </script>
</head>

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

</html>