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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <body>
    <div id="timeline"></div>
	<img class="original-map" src="http://www.slate.com/content/dam/slate/blogs/the_vault/2013/8/12/HistomapFinal.jpg.CROP.article920-large.jpg"/>
</body>
<script>
    function getMetrics() {
        var metrics = ["2000bc", "1950bc", "1900bc", "1850bc", "1800bc", "1750bc", "1700bc", "1650bc", "1600bc", "1550bc", "1500bc", "1450bc", "1400bc", "1350bc", "1300bc", "1250bc", "1200bc", "1150bc", "1100bc", "1050bc", "1000bc", "950bc", "900bc", "850bc", "800bc", "750bc", "700bc", "650bc", "600bc", "550bc", "500bc", "450bc", "400bc", "350bc", "300bc", "250bc", "200bc", "150bc", "100bc", "50bc", "0ad", "50ad", "100ad", "150ad", "200ad", "250ad", "300ad", "350ad", "400ad", "450ad", "500ad", "550ad", "600ad", "650ad", "700ad", "750ad", "800ad", "850ad", "900ad", "950ad", "1000ad", "1050ad", "1100ad", "1150ad", "1200ad", "1250ad", "1300ad", "1350ad", "1400ad", "1450ad", "1500ad", "1550ad", "1600ad", "1650ad", "1700ad", "1750ad", "1800ad", "1850ad", "1900ad", "~1950ad", "~2000ad"];
        return metrics;
    };
</script>
            
          
!
            
              body {
	overflow: visible;
}

.axisYears path {
	fill: none;
}

.tick line {
	stroke: black;
}

$timeline-width: 800px;
#timeline {
	float: left;
	width: $timeline-width;
	padding-top: 30px;
	/* 	border: 1px solid green; */
}

.original-map {
	position: absolute;
	top: 0;
	left: $timeline-width;
	height: 2830px;
	float: left;
	/* 	border: 1px solid red; */
}
            
          
!
            
              d3.json("https://codepen.io/cmchap/pen/qddbOQ.js",
        
function (err, jsonResponse) {

    // NOTE: d is usually "current datum", per d3 convention.
    // e is usually something like "current array element".
    // i is usually "index of current datum or array element"

    //Grab our data
    var civData = jsonResponse,
        metrics = getMetrics();

    // Set some dimensions for our chart
    var width = 500,
        height = width * 5.3,
        padding = width/5;

    // Create the svg.
    // We make it a little bigger than the chart will be to account for labels overflowing (for now)
    var svg = d3.select("#timeline").append("svg")
        .attr({
        "width": width + 2 * padding,
            "height": height + 2 * padding
            })

    // Create a scale for the x axis of our chart.
    // It scales from the layout scale (0,1) to the chart scale (0,width)
    // It also reverses it. I'm a little unclear on why.
    var xScale = d3.scale.linear()
        .domain([0, 1])
        .range([width, 0]);

    // Create a scale for the y axis of our chart, as above.
    var timeScale = d3.scale.linear()
        .domain([0, metrics.length - 1])
        .range([0, height]);

    // The stack function takes an array (layers) of arrays of objects (datapoints in each layer)
    // This bit constructs that array of arrays.

    civData.forEach(function (v, i, a) {
        v.layer = metrics.map(function (metric, i) {
            return {
                x: i,
                y: v.metrics[metric]
            };
        });
    });

    // Prep the stack layout function. https://github.com/mbostock/d3/wiki/Stack-Layout
    // "expand" tells it to fill out the (0,1) space
    // "reverse" tells it to stack the layers in reverse order. I'm a little unclear on why.
    var stack = d3.layout.stack()
        .offset("expand")
        .order("reverse")
        .values(function (d) {
        return d.layer;
    });

    // Use the stack function we configured earlier to lay out the chart
    layers = stack(civData);

    // The area function constructs a polygon from two lines, more or less.
    var area = d3.svg.area()
    // .y tells it to use the same y value for both lines, and to get it this way
    .y(function (d) {
        return timeScale(d.x) + padding;
    })
    // .x0 tells it to get the x value for the left line this way
    .x0(function (d) {
        return xScale(null) + padding;
    })
    // .x1 tells it to get the x value for the right line this way
    .x1(function (d) {
        return xScale(d.y0 + d.y) + padding;
    });

    // NOTE: Area and stack sort of think of x and y differently.
    // Area means it literally: x and y on your svg/canvas.
    // Stack is more like y=direction things are stacked and x=direction things flow

    //Draw layers
    svg.selectAll("path")
        .data(layers)
        .enter().append("path")
        .attr("d", function (d) {
        return area(d.layer);
    })
        .style({
        "fill": function (d) {
            return d.color;
        },
            "stroke": function (d) {
            return d3.hsl(d.color).darker(0.25);
        },
            "stroke-width": width / 200
    });

    //Draw text
    svg.selectAll("text")
        .data(layers)
        .enter().append("text")
        .each(function (d) {
        // Figure out what the layer's highest value is
        var max = d3.max(d.layer, function (e) {
            return e.y;
        });
        // Figure out at what index that occurs
        var index = d.layer.map(function (e) {
            return e.y;
        }).indexOf(max);
        // Place the text halfway between the left and right edges of the layer at that index
        var x = xScale(d.layer[index].y / 2 + d.layer[index].y0) + padding;
        // Place the text at that index, vertically
        var y = timeScale(d.layer[index].x) + padding;
        d3.select(this).attr({
            "x": x,
                "y": y,
                "text-anchor": "middle",
            "class": "civName"
        });
    })
        .text(function (d) {
        return d.name;
        });

    //Create scale our of metrics
    var yearScale = d3.scale.ordinal().domain(metrics).rangePoints([0, height]);

    //Create left axis
    var leftAxis = d3.svg.axis().orient("left").scale(yearScale);
    svg.append("g")
        .attr("transform", "translate(" + padding + "," + padding + ")")
        .attr("class", "axisYears")
        .call(leftAxis);

    //Create right axis
    var rightAxis = d3.svg.axis().orient("right").scale(yearScale);
    svg.append("g")
        .attr("transform", "translate(" + (padding + width) + "," + padding + ")")
        .attr("class", "axisYears")
        .call(rightAxis);
    
    //Set civilization name font size relative to chart width
    d3.selectAll(".civName")
        .style("font-size", function () {
            return width/30;
        });
    
    // Set axis font size relative to chart width
    d3.selectAll(".axisYears")
        .style("font-size", function () {
            return width/20;
        });
});
            
          
!
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