curran/README.md

## README.md

      
    Raw
  

              README.md
            
          
    A small multiples visualization of donut charts showing the proportion and total number of lynchings by US State and by Race from 1882-1968. Area corresponds to the number of people lynched. The data from the Archives at Tuskegee Institute.
Inspired by

American Lynches Map by @ Malcolm_Decuire
State Grid by @enjalot - created in this Video of Block Remix

forked from curran's block: Lynchings by State Pie Charts


## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>D3 Example</title>
    <script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
    <script src="//cdnjs.cloudflare.com/ajax/libs/d3-legend/1.1.0/d3-legend.js"></script>
    <link href='https://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
    <style>

      .axis text {
        font-family: 'Open Sans', sans-serif;
        font-size: 12pt;
      }

      .axis path, .axis line {
        fill: none;
        stroke: none;
      }

      .color-legend text {
        font-family: 'Open Sans', sans-serif;
        font-size: 12pt;
      }

    </style>
  </head>
  <body>
    <script>

      var outerWidth = 960;
      var outerHeight = 500;
      var margin = { left: 153, top: 1, right: 23, bottom: 1 };

      var yColumn = "state";
      var xColumn = "group";
      var colorColumn = "race";
      var areaColumn = "lynchings";
      var radiusMax = 57;
      var numGroups = 6;

      var innerWidth  = outerWidth  - margin.left - margin.right;
      var innerHeight = outerHeight - margin.top  - margin.bottom;

      var svg = d3.select("body").append("svg")
        .attr("width",  outerWidth)
        .attr("height", outerHeight);
      var g = svg.append("g")
        .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

      var colorLegendG = svg.append("g")
        .attr("class", "color-legend")
        .attr("transform", "translate(24, 224)");

      var yScale = d3.scale.ordinal().rangePoints([0, innerHeight], 1);

      var radiusScale = d3.scale.sqrt().range([0, radiusMax]);
      var colorScale = d3.scale.ordinal()
        .range(["#ffcda8", "#a35400"]);

      var yAxis = d3.svg.axis().scale(yScale).orient("left");

      var pie = d3.layout.pie();
      var arc = d3.svg.arc();
      arc.innerRadius(0);

      var colorLegend = d3.legend.color()
        .scale(colorScale)
        .shapePadding(29)
        .shapeWidth(25)
        .shapeHeight(25)
        .labelOffset(9)
        .orient("horizontal");

      function render(data, group){

        var groupG = g.append("g")
          .attr("transform", "translate(" + group * (innerWidth / (numGroups - 1)) + ", 0)");

        var nested = d3.nest()
          .key(function (d){ return d[yColumn]; })
          .entries(data);

        // Compute sums for the radius field,
        // for setting the size of each pie.
        nested.forEach(function (xEntry){
          xEntry.areaColumnSum = d3.sum(xEntry.values, function (d){
            return d[areaColumn];
          });
        });

        yScale.domain(nested.map( function (d){ return d.key; }));
        colorScale.domain(nested[0].values.map(function (d){ return d[colorColumn]; }));
        pie.value(function(d) { return d[areaColumn]; });

        var pies = groupG.selectAll(".pie").data(nested);
        pies.enter().append("g").attr("class", "pie");
        pies.attr("transform", function (d){
          var y = yScale(d.key);
          return "translate(0," + y + ")";
        });
        pies.exit().remove();

        var slices = pies.selectAll("path").data(function (d){
          return pie(d.values);
        });

        slices.enter().append("path");
        slices
          .attr("d", function (d, i, j){
            var r = radiusScale(nested[j].areaColumnSum);
            arc.outerRadius(r);
            arc.innerRadius(r / 2);
            return arc(d);
          })
          .attr("fill", function (d){ return colorScale(d.data[colorColumn]); });
        slices.exit().remove();

        var yAxisG = groupG.append("g")
          .attr("class", "y axis");
        yAxisG.call(yAxis)
          .selectAll("text")
          .attr("dx", (-0.687379488768002 * (numGroups - group)) + 0.49152 + "em")
          //.attr("dy", "-0.2736816128em")
          //.style("text-anchor", "end")
          //.attr("transform", "rotate(-90)" )

        colorLegendG.call(colorLegend);
      }

      function type(d){
        d.name = "World";
        d.population = +d.population;
        return d;
      }

      d3.csv("lynchings-1882-1968-by-state-and-race.csv", type, function (data){

        // Sort by total
        data = data.sort(function (a, b){
          return b.Total - a.Total;
        });

        // Transform the data so it works with the nest logic.
        var transformed = [];

        data.forEach(function(d, i){

          // The "group" is the vertical column.
          var group = Math.floor(Math.sqrt(i) / 1.12);

          transformed.push({
            state: d.State,
            race: "White",
            lynchings: d.White,
            group: group
          });
          transformed.push({
            state: d.State,
            race: "Black",
            lynchings: d.Black,
            group: group
          });
        });

        var nested = d3.nest()
          .key(function (d){ return d[yColumn]; })
          .entries(transformed);

        // Compute sums for the radius field,
        // for setting the size of each pie.
        nested.forEach(function (xEntry){
          xEntry.areaColumnSum = d3.sum(xEntry.values, function (d){
            return d[areaColumn];
          });
        });

        radiusScale.domain([
          0,
          d3.max(nested, function (xEntry){
            return xEntry.areaColumnSum;
          })
        ]);

        var groups = d3.nest()
          .key(function (d){ return d.group; })
          .entries(transformed);

        groups.forEach(function (groupData, i){
          render(groupData.values, i);
        });


      });

    </script>
  </body>
</html>

## lynchings-1882-1968-by-state-and-race.csv

          
            State
            White
            Black
            Total

            
              Alabama
              48
              299
              347

            
              Arizona
              31
              0
              31

            
              Arkansas
              58
              226
              284

            
              California
              41
              2
              43

            
              Colorado
              65
              3
              68

            
              Delaware
              0
              1
              1

            
              Florida
              25
              257
              282

            
              Georgia
              39
              492
              531

            
              Idaho
              20
              0
              20

            
              Illinois
              15
              19
              34

            
              Indiana
              33
              14
              47

            
              Iowa
              17
              2
              19

            
              Kansas
              35
              19
              54

            
              Kentucky
              63
              142
              205

            
              Louisiana
              56
              335
              391

            
              Maine
              1
              0
              1

            
              Maryland
              2
              27
              29

            
              Michigan
              7
              1
              8

            
              Minnesota
              5
              4
              9

            
              Mississippi
              42
              539
              581

            
              Missouri
              53
              69
              122

            
              Montana
              82
              2
              84

            
              Nebraska
              52
              5
              57

            
              Nevada
              6
              0
              6

            
              New Jersey
              1
              1
              2

            
              New Mexico
              33
              3
              36

            
              New York
              1
              1
              2

            
              North C.
              15
              86
              101

            
              North Dakota
              13
              3
              16

            
              Ohio
              10
              16
              26

            
              Oklahoma
              82
              40
              122

            
              Oregon
              20
              1
              21

            
              Pennsylvania
              2
              6
              8

            
              South C.
              4
              156
              160

            
              South Dakota
              27
              0
              27

            
              Tennessee
              47
              204
              251

            
              Texas
              141
              352
              493

            
              Utah
              6
              2
              8

            
              Vermont
              1
              0
              1

            
              Virginia
              17
              83
              100

            
              Washington
              25
              1
              26

            
              West Virginia
              20
              28
              48

            
              Wisconsin
              6
              0
              6

            
              Wyoming
              30
              5
              35

## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>D3 Example</title>
	<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<script src="//cdnjs.cloudflare.com/ajax/libs/d3-legend/1.1.0/d3-legend.js"></script>
	<link href='https://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
	<style>

	.axis text {
	font-family: 'Open Sans', sans-serif;
	font-size: 12pt;
	}

	.axis path, .axis line {
	fill: none;
	stroke: none;
	}

	.color-legend text {
	font-family: 'Open Sans', sans-serif;
	font-size: 12pt;
	}

	</style>
	</head>
	<body>
	<script>

	var outerWidth = 960;
	var outerHeight = 500;
	var margin = { left: 153, top: 1, right: 23, bottom: 1 };

	var yColumn = "state";
	var xColumn = "group";
	var colorColumn = "race";
	var areaColumn = "lynchings";
	var radiusMax = 57;
	var numGroups = 6;

	var innerWidth = outerWidth - margin.left - margin.right;
	var innerHeight = outerHeight - margin.top - margin.bottom;

	var svg = d3.select("body").append("svg")
	.attr("width", outerWidth)
	.attr("height", outerHeight);
	var g = svg.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	var colorLegendG = svg.append("g")
	.attr("class", "color-legend")
	.attr("transform", "translate(24, 224)");

	var yScale = d3.scale.ordinal().rangePoints([0, innerHeight], 1);

	var radiusScale = d3.scale.sqrt().range([0, radiusMax]);
	var colorScale = d3.scale.ordinal()
	.range(["#ffcda8", "#a35400"]);

	var yAxis = d3.svg.axis().scale(yScale).orient("left");

	var pie = d3.layout.pie();
	var arc = d3.svg.arc();
	arc.innerRadius(0);

	var colorLegend = d3.legend.color()
	.scale(colorScale)
	.shapePadding(29)
	.shapeWidth(25)
	.shapeHeight(25)
	.labelOffset(9)
	.orient("horizontal");

	function render(data, group){

	var groupG = g.append("g")
	.attr("transform", "translate(" + group * (innerWidth / (numGroups - 1)) + ", 0)");

	var nested = d3.nest()
	.key(function (d){ return d[yColumn]; })
	.entries(data);

	// Compute sums for the radius field,
	// for setting the size of each pie.
	nested.forEach(function (xEntry){
	xEntry.areaColumnSum = d3.sum(xEntry.values, function (d){
	return d[areaColumn];
	});
	});

	yScale.domain(nested.map( function (d){ return d.key; }));
	colorScale.domain(nested[0].values.map(function (d){ return d[colorColumn]; }));
	pie.value(function(d) { return d[areaColumn]; });

	var pies = groupG.selectAll(".pie").data(nested);
	pies.enter().append("g").attr("class", "pie");
	pies.attr("transform", function (d){
	var y = yScale(d.key);
	return "translate(0," + y + ")";
	});
	pies.exit().remove();

	var slices = pies.selectAll("path").data(function (d){
	return pie(d.values);
	});

	slices.enter().append("path");
	slices
	.attr("d", function (d, i, j){
	var r = radiusScale(nested[j].areaColumnSum);
	arc.outerRadius(r);
	arc.innerRadius(r / 2);
	return arc(d);
	})
	.attr("fill", function (d){ return colorScale(d.data[colorColumn]); });
	slices.exit().remove();

	var yAxisG = groupG.append("g")
	.attr("class", "y axis");
	yAxisG.call(yAxis)
	.selectAll("text")
	.attr("dx", (-0.687379488768002 * (numGroups - group)) + 0.49152 + "em")
	//.attr("dy", "-0.2736816128em")
	//.style("text-anchor", "end")
	//.attr("transform", "rotate(-90)" )

	colorLegendG.call(colorLegend);
	}

	function type(d){
	d.name = "World";
	d.population = +d.population;
	return d;
	}

	d3.csv("lynchings-1882-1968-by-state-and-race.csv", type, function (data){

	// Sort by total
	data = data.sort(function (a, b){
	return b.Total - a.Total;
	});

	// Transform the data so it works with the nest logic.
	var transformed = [];

	data.forEach(function(d, i){

	// The "group" is the vertical column.
	var group = Math.floor(Math.sqrt(i) / 1.12);

	transformed.push({
	state: d.State,
	race: "White",
	lynchings: d.White,
	group: group
	});
	transformed.push({
	state: d.State,
	race: "Black",
	lynchings: d.Black,
	group: group
	});
	});

	var nested = d3.nest()
	.key(function (d){ return d[yColumn]; })
	.entries(transformed);

	// Compute sums for the radius field,
	// for setting the size of each pie.
	nested.forEach(function (xEntry){
	xEntry.areaColumnSum = d3.sum(xEntry.values, function (d){
	return d[areaColumn];
	});
	});

	radiusScale.domain([
	0,
	d3.max(nested, function (xEntry){
	return xEntry.areaColumnSum;
	})
	]);

	var groups = d3.nest()
	.key(function (d){ return d.group; })
	.entries(transformed);

	groups.forEach(function (groupData, i){
	render(groupData.values, i);
	});


	});

	</script>
	</body>
	</html>
State	White	Black	Total
Alabama	48	299	347
Arizona	31	0	31
Arkansas	58	226	284
California	41	2	43
Colorado	65	3	68
Delaware	0	1	1
Florida	25	257	282
Georgia	39	492	531
Idaho	20	0	20
Illinois	15	19	34
Indiana	33	14	47
Iowa	17	2	19
Kansas	35	19	54
Kentucky	63	142	205
Louisiana	56	335	391
Maine	1	0	1
Maryland	2	27	29
Michigan	7	1	8
Minnesota	5	4	9
Mississippi	42	539	581
Missouri	53	69	122
Montana	82	2	84
Nebraska	52	5	57
Nevada	6	0	6
New Jersey	1	1	2
New Mexico	33	3	36
New York	1	1	2
North C.	15	86	101
North Dakota	13	3	16
Ohio	10	16	26
Oklahoma	82	40	122
Oregon	20	1	21
Pennsylvania	2	6	8
South C.	4	156	160
South Dakota	27	0	27
Tennessee	47	204	251
Texas	141	352	493
Utah	6	2	8
Vermont	1	0	1
Virginia	17	83	100
Washington	25	1	26
West Virginia	20	28	48
Wisconsin	6	0	6
Wyoming	30	5	35