noelnamai/README.md

## README.md

      
    Raw
  

              README.md
            
          
    This is the code for Chapter 6, Figure 4 from D3.js in Action showing how to create a simple adjacency matrix from node and edge list formatted data.
forked from emeeks's block: Ch. 6, Fig. 4 - D3.js in Action

  
## edgelist.csv

          
            source
            target
            weight

            
              sam
              pris
              1

            
              roy
              pris
              5

            
              roy
              sam
              1

            
              tully
              pris
              5

            
              tully
              kim
              3

            
              tully
              pat
              1

            
              tully
              mo
              3

            
              kim
              pat
              2

            
              kim
              mo
              1

            
              mo
              tully
              7

            
              mo
              pat
              1

            
              mo
              pris
              1

            
              pat
              tully
              1

            
              pat
              kim
              2

            
              pat
              mo
              5

            
              lee
              al
              3

## index.html
<html>
<head>
  <title>D3 in Action Chapter 6 - Example 1</title>
  <meta charset="utf-8" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script src="https://d3js.org/queue.v1.min.js" type="text/JavaScript"></script>
</head>
<style>
  svg {
    height: 500px;
    width: 500px;
    border: 1px solid gray;
  }

</style>
<body>

<div id="viz">
  <svg>
  </svg>
</div>
<div id="controls" />
</body>
  <footer>

<script>
    queue()
    .defer(d3.csv, "nodelist.csv")
    .defer(d3.csv, "edgelist.csv")
    .await(function(error, file1, file2) { createAdjacencyMatrix(file1, file2); });

    function createAdjacencyMatrix(nodes,edges) {
      var edgeHash = {};
      for (x in edges) {
        var id = edges[x].source + "-" + edges[x].target;
        edgeHash[id] = edges[x];
      }
      matrix = [];
      //create all possible edges
      for (a in nodes) {
        for (b in nodes) {
          var grid = {id: nodes[a].id + "-" + nodes[b].id, x: b, y: a, weight: 0};
          if (edgeHash[grid.id]) {
            grid.weight = edgeHash[grid.id].weight;
          }
          matrix.push(grid);
        }
      }

      d3.select("svg")
      .append("g")
      .attr("transform", "translate(50,50)")
      .attr("id", "adjacencyG")
      .selectAll("rect")
      .data(matrix)
      .enter()
      .append("rect")
      .attr("width", 25)
      .attr("height", 25)
      .attr("x", function (d) {return d.x * 25})
      .attr("y", function (d) {return d.y * 25})
      .style("stroke", "black")
      .style("stroke-width", "1px")
      .style("fill", "red")
      .style("fill-opacity", function (d) {return d.weight * .2})
      .on("mouseover", gridOver)

      var scaleSize = nodes.length * 25;
      var nameScale = d3.scale.ordinal().domain(nodes.map(function (el) {return el.id})).rangePoints([0,scaleSize],1);

      xAxis = d3.svg.axis().scale(nameScale).orient("top").tickSize(4);
      yAxis = d3.svg.axis().scale(nameScale).orient("left").tickSize(4);
      d3.select("#adjacencyG").append("g").call(xAxis).selectAll("text").style("text-anchor", "end").attr("transform", "translate(-10,-10) rotate(90)");
      d3.select("#adjacencyG").append("g").call(yAxis);

      function gridOver(d,i) {
        d3.selectAll("rect").style("stroke-width", function (p) {return p.x == d.x || p.y == d.y ? "3px" : "1px"})
      }

    }
</script>
  </footer>

</html>

## nodelist.csv

          
            id
            followers
            following

            
              sam
              17
              500

            
              roy
              83
              80

            
              pris
              904
              15

            
              tully
              7
              5

            
              kim
              11
              50

            
              mo
              80
              85

            
              pat
              150
              300

            
              lee
              38
              7

            
              al
              12
              12
source	target	weight
sam	pris	1
roy	pris	5
roy	sam	1
tully	pris	5
tully	kim	3
tully	pat	1
tully	mo	3
kim	pat	2
kim	mo	1
mo	tully	7
mo	pat	1
mo	pris	1
pat	tully	1
pat	kim	2
pat	mo	5
lee	al	3
	<html>
	<head>
	<title>D3 in Action Chapter 6 - Example 1</title>
	<meta charset="utf-8" />
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<script src="https://d3js.org/queue.v1.min.js" type="text/JavaScript"></script>
	</head>
	<style>
	svg {
	height: 500px;
	width: 500px;
	border: 1px solid gray;
	}

	</style>
	<body>

	<div id="viz">
	<svg>
	</svg>
	</div>
	<div id="controls" />
	</body>
	<footer>

	<script>
	queue()
	.defer(d3.csv, "nodelist.csv")
	.defer(d3.csv, "edgelist.csv")
	.await(function(error, file1, file2) { createAdjacencyMatrix(file1, file2); });

	function createAdjacencyMatrix(nodes,edges) {
	var edgeHash = {};
	for (x in edges) {
	var id = edges[x].source + "-" + edges[x].target;
	edgeHash[id] = edges[x];
	}
	matrix = [];
	//create all possible edges
	for (a in nodes) {
	for (b in nodes) {
	var grid = {id: nodes[a].id + "-" + nodes[b].id, x: b, y: a, weight: 0};
	if (edgeHash[grid.id]) {
	grid.weight = edgeHash[grid.id].weight;
	}
	matrix.push(grid);
	}
	}

	d3.select("svg")
	.append("g")
	.attr("transform", "translate(50,50)")
	.attr("id", "adjacencyG")
	.selectAll("rect")
	.data(matrix)
	.enter()
	.append("rect")
	.attr("width", 25)
	.attr("height", 25)
	.attr("x", function (d) {return d.x * 25})
	.attr("y", function (d) {return d.y * 25})
	.style("stroke", "black")
	.style("stroke-width", "1px")
	.style("fill", "red")
	.style("fill-opacity", function (d) {return d.weight * .2})
	.on("mouseover", gridOver)

	var scaleSize = nodes.length * 25;
	var nameScale = d3.scale.ordinal().domain(nodes.map(function (el) {return el.id})).rangePoints([0,scaleSize],1);

	xAxis = d3.svg.axis().scale(nameScale).orient("top").tickSize(4);
	yAxis = d3.svg.axis().scale(nameScale).orient("left").tickSize(4);
	d3.select("#adjacencyG").append("g").call(xAxis).selectAll("text").style("text-anchor", "end").attr("transform", "translate(-10,-10) rotate(90)");
	d3.select("#adjacencyG").append("g").call(yAxis);

	function gridOver(d,i) {
	d3.selectAll("rect").style("stroke-width", function (p) {return p.x == d.x \|\| p.y == d.y ? "3px" : "1px"})
	}

	}
	</script>
	</footer>

	</html>
id	followers	following
sam	17	500
roy	83	80
pris	904	15
tully	7	5
kim	11	50
mo	80	85
pat	150	300
lee	38	7
al	12	12