function OhioMap(elementIdSelector) {

    this.mapSelector = elementIdSelector;

    this.drawMap = function() {

        var map = this;
        var el = $(map.mapSelector)[0];

        //var width = 960,
        //    height = 1200;
        map.height = el.clientHeight;
        map.width = (960 / 1200) * map.height;
        console.log('Making map size: ' + map.width + 'x' + map.height);

        //map.projection = d3.geo.mercator().translate([map.width / 2, map.height / 2]);
        map.projection = d3.geo.conicConformal()
            .rotate([82 + 30 / 60, -39 - 40 / 60])
            .translate([map.width / 2, map.height / 2]);

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

        map.svg = d3.select(map.mapSelector).append('svg')
            .attr('width', map.width)
            .attr('height', map.height);

        this.loadState();

        $('#redraw').click(function() {
            map.drawState();
        });
    };

    this.loadState = function() {

        var map = this;
        d3.json('state.oh.json', function(error, response) {

            map.projection.scale(1).translate([0, 0]);

            var b = map.path.bounds(response),
                s = 0.95 / Math.max((b[1][0] - b[0][0]) / map.width, (b[1][1] - b[0][1]) / map.height),
                t = [(map.width - s * (b[1][0] + b[0][0])) / 2, (map.height - s * (b[1][1] + b[0][1])) / 2];

            map.projection.scale(s).translate(t);

            map.svg.selectAll('path')
                .data(response.features)
                .enter().append('path')
                .attr('id', 'pathOhio')
                .attr('class', 'state')
                .attr('stroke', '#fff')
                .attr('stroke-width', 3)
                .attr('d', map.path)

            map.drawState();
        });
    };

    this.drawState = function() {
        var path = document.querySelector('#pathOhio');
        var length = path.getTotalLength();

        // Set up the starting positions
        path.style.strokeDasharray = length + ' ' + length;
        path.style.strokeDashoffset = length;
        // Clear any previous transition
        path.style.transition = path.style.WebkitTransition =
        'none';
        // Set up the starting positions
        path.style.strokeDasharray = length + ' ' + length;
        path.style.strokeDashoffset = length;
        // Trigger a layout so styles are calculated & the browser
        // picks up the starting position before animating
        path.getBoundingClientRect();
        // Define our transition
        path.style.transition = path.style.WebkitTransition =
        'stroke-dashoffset 5s ease';
        // Go!
        path.style.strokeDashoffset = '0';
    };

}; // OhioMap