datamaps.js

(function() {
    var svg;

    // Save off default references
    var d3 = window.d3, topojson = window.topojson;

    var defaultOptions = {
        scope: 'world',
        responsive: false,
        aspectRatio: 0.5625,
        setProjection: setProjection,
        projection: 'equirectangular',
        dataType: 'json',
        data: {},
        done: function() {},
        fills: {
            defaultFill: '#ABDDA4'
        },
        filters: {},
        geographyConfig: {
            dataUrl: null,
            hideAntarctica: true,
            hideHawaiiAndAlaska : false,
            borderWidth: 1,
            borderOpacity: 1,
            borderColor: '#FDFDFD',
            popupTemplate: function(geography, data) {
                return '<div class="hoverinfo"><strong>' + geography.properties.name + '</strong></div>';
            },
            popupOnHover: true,
            highlightOnHover: true,
            highlightFillColor: '#FC8D59',
            highlightBorderColor: 'rgba(250, 15, 160, 0.2)',
            highlightBorderWidth: 2,
            highlightBorderOpacity: 1
        },
        projectionConfig: {
            rotation: [97, 0]
        },
        bubblesConfig: {
            borderWidth: 2,
            borderOpacity: 1,
            borderColor: '#FFFFFF',
            popupOnHover: true,
            radius: null,
            popupTemplate: function(geography, data) {
                return '<div class="hoverinfo"><strong>' + data.name + '</strong></div>';
            },
            fillOpacity: 0.75,
            animate: true,
            highlightOnHover: true,
            highlightFillColor: '#FC8D59',
            highlightBorderColor: 'rgba(250, 15, 160, 0.2)',
            highlightBorderWidth: 2,
            highlightBorderOpacity: 1,
            highlightFillOpacity: 0.85,
            exitDelay: 100,
            key: JSON.stringify
        },
        arcConfig: {
            strokeColor: '#DD1C77',
            strokeWidth: 1,
            arcSharpness: 1,
            animationSpeed: 600,
            popupOnHover: false,
            popupTemplate: function(geography, data) {
                // Case with latitude and longitude
                if ( ( data.origin && data.destination ) && data.origin.latitude && data.origin.longitude && data.destination.latitude && data.destination.longitude ) {
                    return '<div class="hoverinfo"><strong>Arc</strong><br>Origin: ' + JSON.stringify(data.origin) + '<br>Destination: ' + JSON.stringify(data.destination) + '</div>';
                }
                // Case with only country name
                else if ( data.origin && data.destination ) {
                    return '<div class="hoverinfo"><strong>Arc</strong><br>' + data.origin + ' -> ' + data.destination + '</div>';
                }
                // Missing information
                else {
                    return '';
                }
            }
        }
    };

    /*
      Getter for value. If not declared on datumValue, look up the chain into optionsValue
    */
    function val( datumValue, optionsValue, context ) {
        if ( typeof context === 'undefined' ) {
            context = optionsValue;
            optionsValues = undefined;
        }
        var value = typeof datumValue !== 'undefined' ? datumValue : optionsValue;

        if (typeof value === 'undefined') {
            return  null;
        }

        if ( typeof value === 'function' ) {
            var fnContext = [context];
            if ( context.geography ) {
                fnContext = [context.geography, context.data];
            }
            return value.apply(null, fnContext);
        }
        else {
            return value;
        }
    }

    function addContainer( element, height, width ) {
        this.svg = d3.select( element ).append('svg')
            .attr('width', width || element.offsetWidth)
            .attr('data-width', width || element.offsetWidth)
            .attr('class', 'datamap')
            .attr('height', height || element.offsetHeight)
            .style('overflow', 'hidden'); // IE10+ doesn't respect height/width when map is zoomed in

        if (this.options.responsive) {
            d3.select(this.options.element).style({'position': 'relative', 'padding-bottom': (this.options.aspectRatio*100) + '%'});
            d3.select(this.options.element).select('svg').style({'position': 'absolute', 'width': '100%', 'height': '100%'});
            d3.select(this.options.element).select('svg').select('g').selectAll('path').style('vector-effect', 'non-scaling-stroke');

        }

        return this.svg;
    }

    // setProjection takes the svg element and options
    function setProjection( element, options ) {
        var width = options.width || element.offsetWidth;
        var height = options.height || element.offsetHeight;
        var projection, path;
        var svg = this.svg;
        width = width + 80;
        if ( options && typeof options.scope === 'undefined') {
            options.scope = 'world';
        }

        if ( options.scope === 'usa' ) {
            projection = d3.geo.albersUsa()
                .scale(width)
                .translate([width / 2, height / 2]);
        }
        else if ( options.scope === 'world' ) {
            projection = d3.geo[options.projection]()
                .scale((width + 1) / 2 / Math.PI)
                .translate([width / 2, height / (options.projection === "mercator" ? 1.45 : 1.8)]);
        }

        if ( options.projection === 'orthographic' ) {

            svg.append("defs").append("path")
                .datum({type: "Sphere"})
                .attr("id", "sphere")
                .attr("d", path);

            svg.append("use")
                .attr("class", "stroke")
                .attr("xlink:href", "#sphere");

            svg.append("use")
                .attr("class", "fill")
                .attr("xlink:href", "#sphere");
            projection.scale(250).clipAngle(90).rotate(options.projectionConfig.rotation)
        }

        path = d3.geo.path()
            .projection( projection );

        return {path: path, projection: projection};
    }

    function addStyleBlock() {
        if ( d3.select('.datamaps-style-block').empty() ) {
            d3.select('head').append('style').attr('class', 'datamaps-style-block')
                .html('.datamap path.datamaps-graticule { fill: none; stroke: #777; stroke-width: 0.5px; stroke-opacity: .5; pointer-events: none; } .datamap .labels {pointer-events: none;} .datamap path:not(.datamaps-arc), .datamap circle, .datamap line {stroke: #FFFFFF; vector-effect: non-scaling-stroke; stroke-width: 1px;} .datamaps-legend dt, .datamaps-legend dd { float: left; margin: 0 3px 0 0;} .datamaps-legend dd {width: 20px; margin-right: 6px; border-radius: 3px;} .datamaps-legend {padding-bottom: 20px; z-index: 1001; position: absolute; left: 330px; font-size: 12px; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;} .datamaps-hoverover {display: none; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; } .hoverinfo {padding: 4px; border-radius: 1px; background-color: #FFF; box-shadow: 1px 1px 5px #CCC; font-size: 12px; border: 1px solid #CCC; } .hoverinfo hr {border:1px dotted #CCC; }');
        }
    }

    function drawSubunits( data ) {
        var fillData = this.options.fills,
            colorCodeData = this.options.data || {},
            geoConfig = this.options.geographyConfig;

        var subunits = this.svg.select('g.datamaps-subunits');
        if ( subunits.empty() ) {
            subunits = this.addLayer('datamaps-subunits', null, true);
        }

        var geoData = topojson.feature( data, data.objects[ this.options.scope ] ).features;
        if ( geoConfig.hideAntarctica ) {
            geoData = geoData.filter(function(feature) {
                return feature.id !== "ATA";
            });
        }

        if ( geoConfig.hideHawaiiAndAlaska ) {
            geoData = geoData.filter(function(feature) {
                return feature.id !== "HI" && feature.id !== 'AK';
            });
        }

        var geo = subunits.selectAll('path.datamaps-subunit').data( geoData );

        geo.enter()
            .append('path')
            .attr('d', this.path)
            .attr('class', function(d) {
                return 'datamaps-subunit ' + d.id;
            })
            .attr('data-info', function(d) {
                return JSON.stringify( colorCodeData[d.id]);
            })
            .style('fill', function(d) {
                // If fillKey - use that
                // Otherwise check 'fill'
                // Otherwise check 'defaultFill'
                var fillColor;

                var datum = colorCodeData[d.id];
                if ( datum && datum.fillKey ) {
                    fillColor = fillData[ val(datum.fillKey, {data: colorCodeData[d.id], geography: d}) ];
                }

                if ( typeof fillColor === 'undefined' ) {
                    fillColor = val(datum && datum.fillColor, fillData.defaultFill, {data: colorCodeData[d.id], geography: d});
                }

                return fillColor;
            })
            .style('stroke-width', geoConfig.borderWidth)
            .style('stroke-opacity', geoConfig.borderOpacity)
            .style('stroke', geoConfig.borderColor);
    }

    function handleGeographyConfig () {
        var hoverover;
        var svg = this.svg;
        var self = this;
        var options = this.options.geographyConfig;

        if ( options.highlightOnHover || options.popupOnHover ) {
            svg.selectAll('.datamaps-subunit')
                .on('mouseover', function(d) {
                    var $this = d3.select(this);
                    var datum = self.options.data[d.id] || {};
                    if ( options.highlightOnHover ) {
                        var previousAttributes = {
                            'fill':  $this.style('fill'),
                            'stroke': $this.style('stroke'),
                            'stroke-width': $this.style('stroke-width'),
                            'fill-opacity': $this.style('fill-opacity')
                        };

                        $this
                            .style('fill', val(datum.highlightFillColor, options.highlightFillColor, datum))
                            .style('stroke', val(datum.highlightBorderColor, options.highlightBorderColor, datum))
                            .style('stroke-width', val(datum.highlightBorderWidth, options.highlightBorderWidth, datum))
                            .style('stroke-opacity', val(datum.highlightBorderOpacity, options.highlightBorderOpacity, datum))
                            .style('fill-opacity', val(datum.highlightFillOpacity, options.highlightFillOpacity, datum))
                            .attr('data-previousAttributes', JSON.stringify(previousAttributes));

                        // As per discussion on https://github.com/markmarkoh/datamaps/issues/19
                        if ( ! /((MSIE)|(Trident))/.test(navigator.userAgent) ) {
                            moveToFront.call(this);
                        }
                    }

                    if ( options.popupOnHover ) {
                        self.updatePopup($this, d, options, svg);
                    }
                })
                .on('mouseout', function() {
                    var $this = d3.select(this);

                    if (options.highlightOnHover) {
                        // Reapply previous attributes
                        var previousAttributes = JSON.parse( $this.attr('data-previousAttributes') );
                        for ( var attr in previousAttributes ) {
                            $this.style(attr, previousAttributes[attr]);
                        }
                    }
                    $this.on('mousemove', null);
                    d3.selectAll('.datamaps-hoverover').style('display', 'none');
                });
        }

        function moveToFront() {
            this.parentNode.appendChild(this);
        }
    }

    // Plugin to add a simple map legend
    function addLegend(layer, data, options) {
        data = data || {};
        if ( !this.options.fills ) {
            return;
        }

        var html = '<dl>';
        var label = '';
        if ( data.legendTitle ) {
            html = '<h2>' + data.legendTitle + '</h2>' + html;
        }
        for ( var fillKey in this.options.fills ) {

            if ( fillKey === 'defaultFill') {
                if (! data.defaultFillName ) {
                    continue;
                }
                label = data.defaultFillName;
            } else {
                if (data.labels && data.labels[fillKey]) {
                    label = data.labels[fillKey];
                } else {
                    label= fillKey + ': ';
                }
            }
            html += '<dt>' + label + '</dt>';
            html += '<dd style="background-color:' +  this.options.fills[fillKey] + '">&nbsp;</dd>';
        }
        html += '</dl>';

        var hoverover = d3.select( this.options.element ).append('div')
            .attr('class', 'datamaps-legend')
            .html(html);
    }

    function addGraticule ( layer, options ) {
        var graticule = d3.geo.graticule();
        this.svg.insert("path", '.datamaps-subunits')
            .datum(graticule)
            .attr("class", "datamaps-graticule")
            .attr("d", this.path);
    }

    function handleArcs (layer, data, options) {
        var self = this,
            svg = this.svg;

        if ( !data || (data && !data.slice) ) {
            throw "Datamaps Error - arcs must be an array";
        }

        // For some reason arc options were put in an `options` object instead of the parent arc
        // I don't like this, so to match bubbles and other plugins I'm moving it
        // This is to keep backwards compatability
        for ( var i = 0; i < data.length; i++ ) {
            data[i] = defaults(data[i], data[i].options);
            delete data[i].options;
        }

        if ( typeof options === "undefined" ) {
            options = defaultOptions.arcConfig;
        }

        var arcs = layer.selectAll('path.datamaps-arc').data( data, JSON.stringify );

        var path = d3.geo.path()
            .projection(self.projection);

        arcs
            .enter()
            .append('svg:path')
            .attr('class', 'datamaps-arc')
            .style('stroke-linecap', 'round')
            .style('stroke', function(datum) {
                return val(datum.strokeColor, options.strokeColor, datum);
            })
            .style('fill', 'none')
            .style('stroke-width', function(datum) {
                return val(datum.strokeWidth, options.strokeWidth, datum);
            })
            .attr('d', function(datum) {

                var originXY, destXY;

                if (typeof datum.origin === "string") {
                    switch (datum.origin) {
                        case "CAN":
                            originXY = self.latLngToXY(56.624472, -114.665293);
                            break;
                        case "CHL":
                            originXY = self.latLngToXY(-33.448890, -70.669265);
                            break;
                        case "IDN":
                            originXY = self.latLngToXY(-6.208763, 106.845599);
                            break;
                        case "JPN":
                            originXY = self.latLngToXY(35.689487, 139.691706);
                            break;
                        case "MYS":
                            originXY = self.latLngToXY(3.139003, 101.686855);
                            break;
                        case "NOR":
                            originXY = self.latLngToXY(59.913869, 10.752245);
                            break;
                        case "USA":
                            originXY = self.latLngToXY(41.140276, -100.760145);
                            break;
                        case "VNM":
                            originXY = self.latLngToXY(21.027764, 105.834160);
                            break;
                        default:
                            originXY = self.path.centroid(svg.select('path.' + datum.origin).data()[0]);
                    }
                } else {
                    originXY = self.latLngToXY(val(datum.origin.latitude, datum), val(datum.origin.longitude, datum))
                }

                if (typeof datum.destination === 'string') {
                    switch (datum.destination) {
                        case "CAN":
                            destXY = self.latLngToXY(56.624472, -114.665293);
                            break;
                        case "CHL":
                            destXY = self.latLngToXY(-33.448890, -70.669265);
                            break;
                        case "IDN":
                            destXY = self.latLngToXY(-6.208763, 106.845599);
                            break;
                        case "JPN":
                            destXY = self.latLngToXY(35.689487, 139.691706);
                            break;
                        case "MYS":
                            destXY = self.latLngToXY(3.139003, 101.686855);
                            break;
                        case "NOR":
                            destXY = self.latLngToXY(59.913869, 10.752245);
                            break;
                        case "USA":
                            destXY = self.latLngToXY(41.140276, -100.760145);
                            break;
                        case "VNM":
                            destXY = self.latLngToXY(21.027764, 105.834160);
                            break;
                        default:
                            destXY = self.path.centroid(svg.select('path.' + datum.destination).data()[0]);
                    }
                } else {
                    destXY = self.latLngToXY(val(datum.destination.latitude, datum), val(datum.destination.longitude, datum));
                }
                var midXY = [ (originXY[0] + destXY[0]) / 2, (originXY[1] + destXY[1]) / 2];
                if (options.greatArc) {
                    // TODO: Move this to inside `if` clause when setting attr `d`
                    var greatArc = d3.geo.greatArc()
                        .source(function(d) { return [val(d.origin.longitude, d), val(d.origin.latitude, d)]; })
                        .target(function(d) { return [val(d.destination.longitude, d), val(d.destination.latitude, d)]; });

                    return path(greatArc(datum))
                }
                var sharpness = val(datum.arcSharpness, options.arcSharpness, datum);
                return "M" + originXY[0] + ',' + originXY[1] + "S" + (midXY[0] + (50 * sharpness)) + "," + (midXY[1] - (75 * sharpness)) + "," + destXY[0] + "," + destXY[1];
            })
            .attr('data-info', function(datum) {
                return JSON.stringify(datum);
            })
            .on('mouseover', function ( datum ) {
                var $this = d3.select(this);

                if (options.popupOnHover) {
                    self.updatePopup($this, datum, options, svg);
                }
            })
            .on('mouseout', function ( datum ) {
                var $this = d3.select(this);

                d3.selectAll('.datamaps-hoverover').style('display', 'none');
            })
            .transition()
            .delay(100)
            .style('fill', function(datum) {
                /*
                  Thank you Jake Archibald, this is awesome.
                  Source: http://jakearchibald.com/2013/animated-line-drawing-svg/
                */
                var length = this.getTotalLength();
                this.style.transition = this.style.WebkitTransition = 'none';
                this.style.strokeDasharray = length + ' ' + length;
                this.style.strokeDashoffset = length;
                this.getBoundingClientRect();
                this.style.transition = this.style.WebkitTransition = 'stroke-dashoffset ' + val(datum.animationSpeed, options.animationSpeed, datum) + 'ms ease-out';
                this.style.strokeDashoffset = '0';
                return 'none';
            })

        arcs.exit()
            .transition()
            .style('opacity', 0)
            .remove();
    }

    function handleLabels ( layer, options ) {
        var self = this;
        options = options || {};
        var labelStartCoodinates = this.projection([-67.707617, 42.722131]);
        this.svg.selectAll(".datamaps-subunit")
            .attr("data-foo", function(d) {
                var center = self.path.centroid(d);
                var xOffset = 7.5, yOffset = 5;

                if ( ["FL", "KY", "MI"].indexOf(d.id) > -1 ) xOffset = -2.5;
                if ( d.id === "NY" ) xOffset = -1;
                if ( d.id === "MI" ) yOffset = 18;
                if ( d.id === "LA" ) xOffset = 13;

                var x,y;

                x = center[0] - xOffset;
                y = center[1] + yOffset;

                var smallStateIndex = ["VT", "NH", "MA", "RI", "CT", "NJ", "DE", "MD", "DC"].indexOf(d.id);
                if ( smallStateIndex > -1) {
                    var yStart = labelStartCoodinates[1];
                    x = labelStartCoodinates[0];
                    y = yStart + (smallStateIndex * (2+ (options.fontSize || 12)));
                    layer.append("line")
                        .attr("x1", x - 3)
                        .attr("y1", y - 5)
                        .attr("x2", center[0])
                        .attr("y2", center[1])
                        .style("stroke", options.labelColor || "#000")
                        .style("stroke-width", options.lineWidth || 1)
                }

                layer.append("text")
                    .attr("x", x)
                    .attr("y", y)
                    .style("font-size", (options.fontSize || 10) + 'px')
                    .style("font-family", options.fontFamily || "Verdana")
                    .style("fill", options.labelColor || "#000")
                    .text(function() {
                        if (options.customLabelText && options.customLabelText[d.id]) {
                            return options.customLabelText[d.id]
                        } else {
                            return d.id
                        }
                    });

                return "bar";
            });
    }


    function handleBubbles (layer, data, options ) {
        var self = this,
            fillData = this.options.fills,
            filterData = this.options.filters,
            svg = this.svg;

        if ( !data || (data && !data.slice) ) {
            throw "Datamaps Error - bubbles must be an array";
        }

        var bubbles = layer.selectAll('circle.datamaps-bubble').data( data, options.key );

        bubbles
            .enter()
            .append('svg:circle')
            .attr('class', 'datamaps-bubble')
            .attr('cx', function ( datum ) {
                var latLng;
                if ( datumHasCoords(datum) ) {
                    latLng = self.latLngToXY(datum.latitude, datum.longitude);
                }
                else if ( datum.centered ) {
                    if ( datum.centered === 'USA' ) {
                        latLng = self.projection([-98.58333, 39.83333])
                    } else {
                        latLng = self.path.centroid(svg.select('path.' + datum.centered).data()[0]);
                    }
                }
                if ( latLng ) return latLng[0];
            })
            .attr('cy', function ( datum ) {
                var latLng;
                if ( datumHasCoords(datum) ) {
                    latLng = self.latLngToXY(datum.latitude, datum.longitude);
                }
                else if ( datum.centered ) {
                    if ( datum.centered === 'USA' ) {
                        latLng = self.projection([-98.58333, 39.83333])
                    } else {
                        latLng = self.path.centroid(svg.select('path.' + datum.centered).data()[0]);
                    }
                }
                if ( latLng ) return latLng[1];
            })
            .attr('r', function(datum) {
                // If animation enabled start with radius 0, otherwise use full size.
                return options.animate ? 0 : val(datum.radius, options.radius, datum);
            })
            .attr('data-info', function(datum) {
                return JSON.stringify(datum);
            })
            .attr('filter', function (datum) {
                var filterKey = filterData[ val(datum.filterKey, options.filterKey, datum) ];

                if (filterKey) {
                    return filterKey;
                }
            })
            .style('stroke', function ( datum ) {
                return val(datum.borderColor, options.borderColor, datum);
            })
            .style('stroke-width', function ( datum ) {
                return val(datum.borderWidth, options.borderWidth, datum);
            })
            .style('stroke-opacity', function ( datum ) {
                return val(datum.borderOpacity, options.borderOpacity, datum);
            })
            .style('fill-opacity', function ( datum ) {
                return val(datum.fillOpacity, options.fillOpacity, datum);
            })
            .style('fill', function ( datum ) {
                var fillColor = fillData[ val(datum.fillKey, options.fillKey, datum) ];
                return fillColor || fillData.defaultFill;
            })
            .on('mouseover', function ( datum ) {
                var $this = d3.select(this);

                if (options.highlightOnHover) {
                    // Save all previous attributes for mouseout
                    var previousAttributes = {
                        'fill':  $this.style('fill'),
                        'stroke': $this.style('stroke'),
                        'stroke-width': $this.style('stroke-width'),
                        'fill-opacity': $this.style('fill-opacity')
                    };

                    $this
                        .style('fill', val(datum.highlightFillColor, options.highlightFillColor, datum))
                        .style('stroke', val(datum.highlightBorderColor, options.highlightBorderColor, datum))
                        .style('stroke-width', val(datum.highlightBorderWidth, options.highlightBorderWidth, datum))
                        .style('stroke-opacity', val(datum.highlightBorderOpacity, options.highlightBorderOpacity, datum))
                        .style('fill-opacity', val(datum.highlightFillOpacity, options.highlightFillOpacity, datum))
                        .attr('data-previousAttributes', JSON.stringify(previousAttributes));
                }

                if (options.popupOnHover) {
                    self.updatePopup($this, datum, options, svg);
                }
            })
            .on('mouseout', function ( datum ) {
                var $this = d3.select(this);

                if (options.highlightOnHover) {
                    // Reapply previous attributes
                    var previousAttributes = JSON.parse( $this.attr('data-previousAttributes') );
                    for ( var attr in previousAttributes ) {
                        $this.style(attr, previousAttributes[attr]);
                    }
                }

                d3.selectAll('.datamaps-hoverover').style('display', 'none');
            })

        bubbles.transition()
            .duration(400)
            .attr('r', function ( datum ) {
                return val(datum.radius, options.radius, datum);
            })
            .transition()
            .duration(0)
            .attr('data-info', function(d) {
                return JSON.stringify(d);
            });

        bubbles.exit()
            .transition()
            .delay(options.exitDelay)
            .attr("r", 0)
            .remove();

        function datumHasCoords (datum) {
            return typeof datum !== 'undefined' && typeof datum.latitude !== 'undefined' && typeof datum.longitude !== 'undefined';
        }
    }

    function defaults(obj) {
        Array.prototype.slice.call(arguments, 1).forEach(function(source) {
            if (source) {
                for (var prop in source) {
                    // Deep copy if property not set
                    if (obj[prop] == null) {
                        if (typeof source[prop] == 'function') {
                            obj[prop] = source[prop];
                        }
                        else {
                            obj[prop] = JSON.parse(JSON.stringify(source[prop]));
                        }
                    }
                }
            }
        });
        return obj;
    }
    /**************************************
     Public Functions
     ***************************************/

    function Datamap( options ) {

        if ( typeof d3 === 'undefined' || typeof topojson === 'undefined' ) {
            throw new Error('Include d3.js (v3.0.3 or greater) and topojson on this page before creating a new map');
        }
        // Set options for global use
        this.options = defaults(options, defaultOptions);
        this.options.geographyConfig = defaults(options.geographyConfig, defaultOptions.geographyConfig);
        this.options.projectionConfig = defaults(options.projectionConfig, defaultOptions.projectionConfig);
        this.options.bubblesConfig = defaults(options.bubblesConfig, defaultOptions.bubblesConfig);
        this.options.arcConfig = defaults(options.arcConfig, defaultOptions.arcConfig);

        // Add the SVG container
        if ( d3.select( this.options.element ).select('svg').length > 0 ) {
            addContainer.call(this, this.options.element, this.options.height, this.options.width );
        }

        // Add core plugins to this instance
        this.addPlugin('bubbles', handleBubbles);
        this.addPlugin('legend', addLegend);
        this.addPlugin('arc', handleArcs);
        this.addPlugin('labels', handleLabels);
        this.addPlugin('graticule', addGraticule);

        // Append style block with basic hoverover styles
        if ( ! this.options.disableDefaultStyles ) {
            addStyleBlock();
        }

        return this.draw();
    }

    // Resize map
    Datamap.prototype.resize = function () {

        var self = this;
        var options = self.options;

        if (options.responsive) {
            var newsize = options.element.clientWidth,
                oldsize = d3.select( options.element).select('svg').attr('data-width');

            d3.select(options.element).select('svg').selectAll('g').attr('transform', 'scale(' + (newsize / oldsize) + ')');
        }
    }

    // Actually draw the features(states & countries)
    Datamap.prototype.draw = function() {
        // Save off in a closure
        var self = this;
        var options = self.options;

        // Set projections and paths based on scope
        var pathAndProjection = options.setProjection.apply(this, [options.element, options] );

        this.path = pathAndProjection.path;
        this.projection = pathAndProjection.projection;

        // If custom URL for topojson data, retrieve it and render
        if ( options.geographyConfig.dataUrl ) {
            d3.json( options.geographyConfig.dataUrl, function(error, results) {
                if ( error ) throw new Error(error);
                self.customTopo = results;
                draw( results );
            });
        }
        else {
            draw( this[options.scope + 'Topo'] || options.geographyConfig.dataJson);
        }

        return this;

        function draw (data) {
            // If fetching remote data, draw the map first then call `updateChoropleth`
            if ( self.options.dataUrl ) {
                // Allow for csv or json data types
                d3[self.options.dataType](self.options.dataUrl, function(data) {
                    // In the case of csv, transform data to object
                    if ( self.options.dataType === 'csv' && (data && data.slice) ) {
                        var tmpData = {};
                        for(var i = 0; i < data.length; i++) {
                            tmpData[data[i].id] = data[i];
                        }
                        data = tmpData;
                    }
                    Datamaps.prototype.updateChoropleth.call(self, data);
                });
            }
            drawSubunits.call(self, data);
            handleGeographyConfig.call(self);

            if ( self.options.geographyConfig.popupOnHover || self.options.bubblesConfig.popupOnHover) {
                hoverover = d3.select( self.options.element ).append('div')
                    .attr('class', 'datamaps-hoverover')
                    .style('z-index', 10001)
                    .style('position', 'absolute');
            }

            // Fire off finished callback
            self.options.done(self);
        }
    };
    /**************************************
     TopoJSON
     ***************************************/
    Datamap.prototype.worldTopo = '__WORLD__';
    Datamap.prototype.abwTopo = '__ABW__';
    Datamap.prototype.afgTopo = '__AFG__';
    Datamap.prototype.agoTopo = '__AGO__';
    Datamap.prototype.aiaTopo = '__AIA__';
    Datamap.prototype.albTopo = '__ALB__';
    Datamap.prototype.aldTopo = '__ALD__';
    Datamap.prototype.andTopo = '__AND__';
    Datamap.prototype.areTopo = '__ARE__';
    Datamap.prototype.argTopo = '__ARG__';
    Datamap.prototype.armTopo = '__ARM__';
    Datamap.prototype.asmTopo = '__ASM__';
    Datamap.prototype.ataTopo = '__ATA__';
    Datamap.prototype.atcTopo = '__ATC__';
    Datamap.prototype.atfTopo = '__ATF__';
    Datamap.prototype.atgTopo = '__ATG__';
    Datamap.prototype.ausTopo = '__AUS__';
    Datamap.prototype.autTopo = '__AUT__';
    Datamap.prototype.azeTopo = '__AZE__';
    Datamap.prototype.bdiTopo = '__BDI__';
    Datamap.prototype.belTopo = '__BEL__';
    Datamap.prototype.benTopo = '__BEN__';
    Datamap.prototype.bfaTopo = '__BFA__';
    Datamap.prototype.bgdTopo = '__BGD__';
    Datamap.prototype.bgrTopo = '__BGR__';
    Datamap.prototype.bhrTopo = '__BHR__';
    Datamap.prototype.bhsTopo = '__BHS__';
    Datamap.prototype.bihTopo = '__BIH__';
    Datamap.prototype.bjnTopo = '__BJN__';
    Datamap.prototype.blmTopo = '__BLM__';
    Datamap.prototype.blrTopo = '__BLR__';
    Datamap.prototype.blzTopo = '__BLZ__';
    Datamap.prototype.bmuTopo = '__BMU__';
    Datamap.prototype.bolTopo = '__BOL__';
    Datamap.prototype.braTopo = '__BRA__';
    Datamap.prototype.brbTopo = '__BRB__';
    Datamap.prototype.brnTopo = '__BRN__';
    Datamap.prototype.btnTopo = '__BTN__';
    Datamap.prototype.norTopo = '__NOR__';
    Datamap.prototype.bwaTopo = '__BWA__';
    Datamap.prototype.cafTopo = '__CAF__';
    Datamap.prototype.canTopo = '__CAN__';
    Datamap.prototype.cheTopo = '__CHE__';
    Datamap.prototype.chlTopo = '__CHL__';
    Datamap.prototype.chnTopo = '__CHN__';
    Datamap.prototype.civTopo = '__CIV__';
    Datamap.prototype.clpTopo = '__CLP__';
    Datamap.prototype.cmrTopo = '__CMR__';
    Datamap.prototype.codTopo = '__COD__';
    Datamap.prototype.cogTopo = '__COG__';
    Datamap.prototype.cokTopo = '__COK__';
    Datamap.prototype.colTopo = '__COL__';
    Datamap.prototype.comTopo = '__COM__';
    Datamap.prototype.cpvTopo = '__CPV__';
    Datamap.prototype.criTopo = '__CRI__';
    Datamap.prototype.csiTopo = '__CSI__';
    Datamap.prototype.cubTopo = '__CUB__';
    Datamap.prototype.cuwTopo = '__CUW__';
    Datamap.prototype.cymTopo = '__CYM__';
    Datamap.prototype.cynTopo = '__CYN__';
    Datamap.prototype.cypTopo = '__CYP__';
    Datamap.prototype.czeTopo = '__CZE__';
    Datamap.prototype.deuTopo = '__DEU__';
    Datamap.prototype.djiTopo = '__DJI__';
    Datamap.prototype.dmaTopo = '__DMA__';
    Datamap.prototype.dnkTopo = '__DNK__';
    Datamap.prototype.domTopo = '__DOM__';
    Datamap.prototype.dzaTopo = '__DZA__';
    Datamap.prototype.ecuTopo = '__ECU__';
    Datamap.prototype.egyTopo = '__EGY__';
    Datamap.prototype.eriTopo = '__ERI__';
    Datamap.prototype.esbTopo = '__ESB__';
    Datamap.prototype.espTopo = '__ESP__';
    Datamap.prototype.estTopo = '__EST__';
    Datamap.prototype.ethTopo = '__ETH__';
    Datamap.prototype.finTopo = '__FIN__';
    Datamap.prototype.fjiTopo = '__FJI__';
    Datamap.prototype.flkTopo = '__FLK__';
    Datamap.prototype.fraTopo = '__FRA__';
    Datamap.prototype.froTopo = '__FRO__';
    Datamap.prototype.fsmTopo = '__FSM__';
    Datamap.prototype.gabTopo = '__GAB__';
    Datamap.prototype.psxTopo = '__PSX__';
    Datamap.prototype.gbrTopo = '__GBR__';
    Datamap.prototype.geoTopo = '__GEO__';
    Datamap.prototype.ggyTopo = '__GGY__';
    Datamap.prototype.ghaTopo = '__GHA__';
    Datamap.prototype.gibTopo = '__GIB__';
    Datamap.prototype.ginTopo = '__GIN__';
    Datamap.prototype.gmbTopo = '__GMB__';
    Datamap.prototype.gnbTopo = '__GNB__';
    Datamap.prototype.gnqTopo = '__GNQ__';
    Datamap.prototype.grcTopo = '__GRC__';
    Datamap.prototype.grdTopo = '__GRD__';
    Datamap.prototype.grlTopo = '__GRL__';
    Datamap.prototype.gtmTopo = '__GTM__';
    Datamap.prototype.gumTopo = '__GUM__';
    Datamap.prototype.guyTopo = '__GUY__';
    Datamap.prototype.hkgTopo = '__HKG__';
    Datamap.prototype.hmdTopo = '__HMD__';
    Datamap.prototype.hndTopo = '__HND__';
    Datamap.prototype.hrvTopo = '__HRV__';
    Datamap.prototype.htiTopo = '__HTI__';
    Datamap.prototype.hunTopo = '__HUN__';
    Datamap.prototype.idnTopo = '__IDN__';
    Datamap.prototype.imnTopo = '__IMN__';
    Datamap.prototype.indTopo = '__IND__';
    Datamap.prototype.ioaTopo = '__IOA__';
    Datamap.prototype.iotTopo = '__IOT__';
    Datamap.prototype.irlTopo = '__IRL__';
    Datamap.prototype.irnTopo = '__IRN__';
    Datamap.prototype.irqTopo = '__IRQ__';
    Datamap.prototype.islTopo = '__ISL__';
    Datamap.prototype.isrTopo = '__ISR__';
    Datamap.prototype.itaTopo = '__ITA__';
    Datamap.prototype.jamTopo = '__JAM__';
    Datamap.prototype.jeyTopo = '__JEY__';
    Datamap.prototype.jorTopo = '__JOR__';
    Datamap.prototype.jpnTopo = '__JPN__';
    Datamap.prototype.kabTopo = '__KAB__';
    Datamap.prototype.kasTopo = '__KAS__';
    Datamap.prototype.kazTopo = '__KAZ__';
    Datamap.prototype.kenTopo = '__KEN__';
    Datamap.prototype.kgzTopo = '__KGZ__';
    Datamap.prototype.khmTopo = '__KHM__';
    Datamap.prototype.kirTopo = '__KIR__';
    Datamap.prototype.knaTopo = '__KNA__';
    Datamap.prototype.korTopo = '__KOR__';
    Datamap.prototype.kosTopo = '__KOS__';
    Datamap.prototype.kwtTopo = '__KWT__';
    Datamap.prototype.laoTopo = '__LAO__';
    Datamap.prototype.lbnTopo = '__LBN__';
    Datamap.prototype.lbrTopo = '__LBR__';
    Datamap.prototype.lbyTopo = '__LBY__';
    Datamap.prototype.lcaTopo = '__LCA__';
    Datamap.prototype.lieTopo = '__LIE__';
    Datamap.prototype.lkaTopo = '__LKA__';
    Datamap.prototype.lsoTopo = '__LSO__';
    Datamap.prototype.ltuTopo = '__LTU__';
    Datamap.prototype.luxTopo = '__LUX__';
    Datamap.prototype.lvaTopo = '__LVA__';
    Datamap.prototype.macTopo = '__MAC__';
    Datamap.prototype.mafTopo = '__MAF__';
    Datamap.prototype.marTopo = '__MAR__';
    Datamap.prototype.mcoTopo = '__MCO__';
    Datamap.prototype.mdaTopo = '__MDA__';
    Datamap.prototype.mdgTopo = '__MDG__';
    Datamap.prototype.mdvTopo = '__MDV__';
    Datamap.prototype.mexTopo = '__MEX__';
    Datamap.prototype.mhlTopo = '__MHL__';
    Datamap.prototype.mkdTopo = '__MKD__';
    Datamap.prototype.mliTopo = '__MLI__';
    Datamap.prototype.mltTopo = '__MLT__';
    Datamap.prototype.mmrTopo = '__MMR__';
    Datamap.prototype.mneTopo = '__MNE__';
    Datamap.prototype.mngTopo = '__MNG__';
    Datamap.prototype.mnpTopo = '__MNP__';
    Datamap.prototype.mozTopo = '__MOZ__';
    Datamap.prototype.mrtTopo = '__MRT__';
    Datamap.prototype.msrTopo = '__MSR__';
    Datamap.prototype.musTopo = '__MUS__';
    Datamap.prototype.mwiTopo = '__MWI__';
    Datamap.prototype.mysTopo = '__MYS__';
    Datamap.prototype.namTopo = '__NAM__';
    Datamap.prototype.nclTopo = '__NCL__';
    Datamap.prototype.nerTopo = '__NER__';
    Datamap.prototype.nfkTopo = '__NFK__';
    Datamap.prototype.ngaTopo = '__NGA__';
    Datamap.prototype.nicTopo = '__NIC__';
    Datamap.prototype.niuTopo = '__NIU__';
    Datamap.prototype.nldTopo = '__NLD__';
    Datamap.prototype.nplTopo = '__NPL__';
    Datamap.prototype.nruTopo = '__NRU__';
    Datamap.prototype.nulTopo = '__NUL__';
    Datamap.prototype.nzlTopo = '__NZL__';
    Datamap.prototype.omnTopo = '__OMN__';
    Datamap.prototype.pakTopo = '__PAK__';
    Datamap.prototype.panTopo = '__PAN__';
    Datamap.prototype.pcnTopo = '__PCN__';
    Datamap.prototype.perTopo = '__PER__';
    Datamap.prototype.pgaTopo = '__PGA__';
    Datamap.prototype.phlTopo = '__PHL__';
    Datamap.prototype.plwTopo = '__PLW__';
    Datamap.prototype.pngTopo = '__PNG__';
    Datamap.prototype.polTopo = '__POL__';
    Datamap.prototype.priTopo = '__PRI__';
    Datamap.prototype.prkTopo = '__PRK__';
    Datamap.prototype.prtTopo = '__PRT__';
    Datamap.prototype.pryTopo = '__PRY__';
    Datamap.prototype.pyfTopo = '__PYF__';
    Datamap.prototype.qatTopo = '__QAT__';
    Datamap.prototype.rouTopo = '__ROU__';
    Datamap.prototype.rusTopo = '__RUS__';
    Datamap.prototype.rwaTopo = '__RWA__';
    Datamap.prototype.sahTopo = '__SAH__';
    Datamap.prototype.sauTopo = '__SAU__';
    Datamap.prototype.scrTopo = '__SCR__';
    Datamap.prototype.sdnTopo = '__SDN__';
    Datamap.prototype.sdsTopo = '__SDS__';
    Datamap.prototype.senTopo = '__SEN__';
    Datamap.prototype.serTopo = '__SER__';
    Datamap.prototype.sgpTopo = '__SGP__';
    Datamap.prototype.sgsTopo = '__SGS__';
    Datamap.prototype.shnTopo = '__SHN__';
    Datamap.prototype.slbTopo = '__SLB__';
    Datamap.prototype.sleTopo = '__SLE__';
    Datamap.prototype.slvTopo = '__SLV__';
    Datamap.prototype.smrTopo = '__SMR__';
    Datamap.prototype.solTopo = '__SOL__';
    Datamap.prototype.somTopo = '__SOM__';
    Datamap.prototype.spmTopo = '__SPM__';
    Datamap.prototype.srbTopo = '__SRB__';
    Datamap.prototype.stpTopo = '__STP__';
    Datamap.prototype.surTopo = '__SUR__';
    Datamap.prototype.svkTopo = '__SVK__';
    Datamap.prototype.svnTopo = '__SVN__';
    Datamap.prototype.sweTopo = '__SWE__';
    Datamap.prototype.swzTopo = '__SWZ__';
    Datamap.prototype.sxmTopo = '__SXM__';
    Datamap.prototype.sycTopo = '__SYC__';
    Datamap.prototype.syrTopo = '__SYR__';
    Datamap.prototype.tcaTopo = '__TCA__';
    Datamap.prototype.tcdTopo = '__TCD__';
    Datamap.prototype.tgoTopo = '__TGO__';
    Datamap.prototype.thaTopo = '__THA__';
    Datamap.prototype.tjkTopo = '__TJK__';
    Datamap.prototype.tkmTopo = '__TKM__';
    Datamap.prototype.tlsTopo = '__TLS__';
    Datamap.prototype.tonTopo = '__TON__';
    Datamap.prototype.ttoTopo = '__TTO__';
    Datamap.prototype.tunTopo = '__TUN__';
    Datamap.prototype.turTopo = '__TUR__';
    Datamap.prototype.tuvTopo = '__TUV__';
    Datamap.prototype.twnTopo = '__TWN__';
    Datamap.prototype.tzaTopo = '__TZA__';
    Datamap.prototype.ugaTopo = '__UGA__';
    Datamap.prototype.ukrTopo = '__UKR__';
    Datamap.prototype.umiTopo = '__UMI__';
    Datamap.prototype.uryTopo = '__URY__';
    Datamap.prototype.usaTopo = {"type":"Topology","transform":{"scale":[0.03514630243024302,0.005240860686068607],"translate":[-178.123152,18.948267]},"objects":{"usa":{"type":"GeometryCollection","geometries":[{"type":"Polygon","id":"AL","arcs":[[0,1,2,3,4]],"properties":{"name":"Alabama"}},{"type":"MultiPolygon","id":"AK","arcs":[[[5]],[[6]],[[7]],[[8]],[[9]],[[10]],[[11]],[[12]],[[13]],[[14]],[[15]],[[16]],[[17]],[[18]],[[19]],[[20]],[[21]],[[22]],[[23]],[[24]],[[25]],[[26]],[[27]],[[28]],[[29]],[[30]],[[31]],[[32]],[[33]],[[34]],[[35]],[[36]],[[37]],[[38]],[[39]],[[40]],[[41]],[[42]],[[43]]],"properties":{"name":"Alaska"}},{"type":"Polygon","id":"AZ","arcs":[[44,45,46,47,48]],"properties":{"name":"Arizona"}},{"type":"Polygon","id":"AR","arcs":[[49,50,51,52,53,54]],"properties":{"name":"Arkansas"}},{"type":"Polygon","id":"CA","arcs":[[55,-47,56,57]],"properties":{"name":"California"}},{"type":"Polygon","id":"CO","arcs":[[58,59,60,61,62,63]],"properties":{"name":"Colorado"}},{"type":"Polygon","id":"CT","arcs":[[64,65,66,67]],"properties":{"name":"Connecticut"}},{"type":"Polygon","id":"DE","arcs":[[68,69,70,71]],"properties":{"name":"Delaware"}},{"type":"Polygon","id":"DC","arcs":[[72,73]],"properties":{"name":"District of Columbia"}},{"type":"Polygon","id":"FL","arcs":[[74,75,-2]],"properties":{"name":"Florida"}},{"type":"Polygon","id":"GA","arcs":[[76,77,-75,-1,78,79]],"properties":{"name":"Georgia"}},{"type":"MultiPolygon","id":"HI","arcs":[[[80]],[[81]],[[82]],[[83]],[[84]]],"properties":{"name":"Hawaii"}},{"type":"Polygon","id":"ID","arcs":[[85,86,87,88,89,90,91]],"properties":{"name":"Idaho"}},{"type":"Polygon","id":"IL","arcs":[[92,93,94,95,96,97]],"properties":{"name":"Illinois"}},{"type":"Polygon","id":"IN","arcs":[[98,99,-95,100,101]],"properties":{"name":"Indiana"}},{"type":"Polygon","id":"IA","arcs":[[102,-98,103,104,105,106]],"properties":{"name":"Iowa"}},{"type":"Polygon","id":"KS","arcs":[[107,108,-60,109]],"properties":{"name":"Kansas"}},{"type":"Polygon","id":"KY","arcs":[[110,111,112,113,-96,-100,114]],"properties":{"name":"Kentucky"}},{"type":"Polygon","id":"LA","arcs":[[115,116,117,-52]],"properties":{"name":"Louisiana"}},{"type":"Polygon","id":"ME","arcs":[[118,119]],"properties":{"name":"Maine"}},{"type":"MultiPolygon","id":"MD","arcs":[[[120]],[[-71,121,122,123,124,-74,125,126,127]]],"properties":{"name":"Maryland"}},{"type":"Polygon","id":"MA","arcs":[[128,129,130,131,-68,132,133,134]],"properties":{"name":"Massachusetts"}},{"type":"MultiPolygon","id":"MI","arcs":[[[-102,135,136]],[[137]],[[138,139]],[[140]]],"properties":{"name":"Michigan"}},{"type":"Polygon","id":"MN","arcs":[[-107,141,142,143,144]],"properties":{"name":"Minnesota"}},{"type":"Polygon","id":"MS","arcs":[[-4,145,-116,-51,146]],"properties":{"name":"Mississippi"}},{"type":"Polygon","id":"MO","arcs":[[-97,-114,147,-55,148,-108,149,-104]],"properties":{"name":"Missouri"}},{"type":"Polygon","id":"MT","arcs":[[150,151,-92,152,153]],"properties":{"name":"Montana"}},{"type":"Polygon","id":"NE","arcs":[[-105,-150,-110,-59,154,155]],"properties":{"name":"Nebraska"}},{"type":"Polygon","id":"NV","arcs":[[156,-48,-56,157,-88]],"properties":{"name":"Nevada"}},{"type":"Polygon","id":"NH","arcs":[[-135,158,159,-120,160]],"properties":{"name":"New 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    Datamap.prototype.usgTopo = '__USG__';
    Datamap.prototype.uzbTopo = '__UZB__';
    Datamap.prototype.vatTopo = '__VAT__';
    Datamap.prototype.vctTopo = '__VCT__';
    Datamap.prototype.venTopo = '__VEN__';
    Datamap.prototype.vgbTopo = '__VGB__';
    Datamap.prototype.virTopo = '__VIR__';
    Datamap.prototype.vnmTopo = '__VNM__';
    Datamap.prototype.vutTopo = '__VUT__';
    Datamap.prototype.wlfTopo = '__WLF__';
    Datamap.prototype.wsbTopo = '__WSB__';
    Datamap.prototype.wsmTopo = '__WSM__';
    Datamap.prototype.yemTopo = '__YEM__';
    Datamap.prototype.zafTopo = '__ZAF__';
    Datamap.prototype.zmbTopo = '__ZMB__';
    Datamap.prototype.zweTopo = '__ZWE__';

    /**************************************
     Utilities
     ***************************************/

    // Convert lat/lng coords to X / Y coords
    Datamap.prototype.latLngToXY = function(lat, lng) {
        return this.projection([lng, lat]);
    };

    // Add <g> layer to root SVG
    Datamap.prototype.addLayer = function( className, id, first ) {
        var layer;
        if ( first ) {
            layer = this.svg.insert('g', ':first-child')
        }
        else {
            layer = this.svg.append('g')
        }
        return layer.attr('id', id || '')
            .attr('class', className || '');
    };

    Datamap.prototype.updateChoropleth = function(data, options) {
        var svg = this.svg;
        var that = this;

        // When options.reset = true, reset all the fill colors to the defaultFill and kill all data-info
        if ( options && options.reset === true ) {
            svg.selectAll('.datamaps-subunit')
                .attr('data-info', function() {
                    return "{}"
                })
                .transition().style('fill', this.options.fills.defaultFill)
        }

        for ( var subunit in data ) {
            if ( data.hasOwnProperty(subunit) ) {
                var color;
                var subunitData = data[subunit]
                if ( ! subunit ) {
                    continue;
                }
                else if ( typeof subunitData === "string" ) {
                    color = subunitData;
                }
                else if ( typeof subunitData.color === "string" ) {
                    color = subunitData.color;
                }
                else if ( typeof subunitData.fillColor === "string" ) {
                    color = subunitData.fillColor;
                }
                else {
                    color = this.options.fills[ subunitData.fillKey ];
                }
                // If it's an object, overriding the previous data
                if ( subunitData === Object(subunitData) ) {
                    this.options.data[subunit] = defaults(subunitData, this.options.data[subunit] || {});
                    var geo = this.svg.select('.' + subunit).attr('data-info', JSON.stringify(this.options.data[subunit]));
                }
                svg
                    .selectAll('.' + subunit)
                    .transition()
                    .style('fill', color);
            }
        }
    };

    Datamap.prototype.updatePopup = function (element, d, options) {
        var self = this;
        element.on('mousemove', null);
        element.on('mousemove', function() {
            var position = d3.mouse(self.options.element);
            d3.select(self.svg[0][0].parentNode).select('.datamaps-hoverover')
                .style('top', ( (position[1] + 30)) + "px")
                .html(function() {
                    var data = JSON.parse(element.attr('data-info'));
                    try {
                        return options.popupTemplate(d, data);
                    } catch (e) {
                        return "";
                    }
                })
                .style('left', ( position[0]) + "px");
        });

        d3.select(self.svg[0][0].parentNode).select('.datamaps-hoverover').style('display', 'block');
    };

    Datamap.prototype.addPlugin = function( name, pluginFn ) {
        var self = this;
        if ( typeof Datamap.prototype[name] === "undefined" ) {
            Datamap.prototype[name] = function(data, options, callback, createNewLayer) {
                var layer;
                if ( typeof createNewLayer === "undefined" ) {
                    createNewLayer = false;
                }

                if ( typeof options === 'function' ) {
                    callback = options;
                    options = undefined;
                }

                options = defaults(options || {}, self.options[name + 'Config']);

                // Add a single layer, reuse the old layer
                if ( !createNewLayer && this.options[name + 'Layer'] ) {
                    layer = this.options[name + 'Layer'];
                    options = options || this.options[name + 'Options'];
                }
                else {
                    layer = this.addLayer(name);
                    this.options[name + 'Layer'] = layer;
                    this.options[name + 'Options'] = options;
                }
                pluginFn.apply(this, [layer, data, options]);
                if ( callback ) {
                    callback(layer);
                }
            };
        }
    };

    // Expose library
    if (typeof exports === 'object') {
        d3 = require('d3');
        topojson = require('topojson');
        module.exports = Datamap;
    }
    else if ( typeof define === "function" && define.amd ) {
        define( "datamaps", ["require", "d3", "topojson"], function(require) {
            d3 = require('d3');
            topojson = require('topojson');

            return Datamap;
        });
    }
    else {
        window.Datamap = window.Datamaps = Datamap;
    }

    if ( window.jQuery ) {
        window.jQuery.fn.datamaps = function(options, callback) {
            options = options || {};
            options.element = this[0];
            var datamap = new Datamap(options);
            if ( typeof callback === "function" ) {
                callback(datamap, options);
            }
            return this;
        };
    }
})();