block by emeeks 4497604

Yearly Parallel Coordinates

Full Screen

Parallel coordinates using time for coordinates.

Interactions done with the brush component

Based on d3.js Parallel Coordinates

index.html

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
    <title>Canvas Parallel Coordinates</title>
    <style type="text/css">

svg {
  font: 10px sans-serif;
}

canvas, svg {
  position: absolute;
  top: 0;
  left: 0;
}

#chart {
  position: relative;
    display: block
    width: 100%;
    height: 500px;
}

#table {
  position: relative;
    display: block
    width: 100%;
    height: 300px;
    overflow:auto
  
}
.brush .extent {
  fill-opacity: .3;
  stroke: #fff;
  shape-rendering: crispEdges;
}

line {
  stroke-width: 3;
}

path {
  stroke-width: 3;
}

.axis line, .axis path {
  stroke-width: .5;
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.axis text {
  text-shadow: 0 1px 0 #fff;
}

    </style>
  </head>
  <body>
    <div id="chart" height="500">
      <canvas id="background"></canvas>
      <canvas id="foreground"></canvas>
      <svg></svg>
    </div>
    <div id="table">    
    </div>
    <script type="text/javascript" src="//mbostock.github.com/d3/d3.v2.js"></script>
    <script type="text/javascript">

var m = [30, 10, 10, 10],
    w = 960 - m[1] - m[3],
    h = 500 - m[0] - m[2];

var x = d3.scale.ordinal().rangePoints([0, w], 1),
    y = {};

var line = d3.svg.line(),
    axis = d3.svg.axis().orient("left"),
    background,
    foreground;

d3.selectAll("canvas")
    .attr("width", w + m[1] + m[3])
    .attr("height", h + m[0] + m[2])
    .style("padding", m.join("px ") + "px");

foreground = document.getElementById('foreground').getContext('2d');
background = document.getElementById('background').getContext('2d');

foreground.strokeStyle = "rgba(0,100,160,0.8)";
background.strokeStyle = "rgba(0,0,0,0.02)";

var svg = d3.select("svg")
    .attr("width", w + m[1] + m[3])
    .attr("height", h + m[0] + m[2])
  .append("svg:g")
    .attr("transform", "translate(" + m[3] + "," + m[0] + ")");

d3.csv("foodstuff.csv", function(foodstuff) {

  // Extract the list of dimensions and create a scale for each.
  x.domain(dimensions = d3.keys(foodstuff[0]).filter(function(d) {
    return d != "name" && (y[d] = d3.scale.linear()
        .domain(d3.extent(foodstuff, function(p) { return +p[d]; }))
        .range([h, 0]));
  }));

  // Render full foreground and background
  foodstuff.map(function(d) {
    path(d, background);
    path(d, foreground);
  });

  // Add a group element for each dimension.
  var g = svg.selectAll(".dimension")
      .data(dimensions)
    .enter().append("svg:g")
      .attr("class", "dimension")
      .attr("transform", function(d) { return "translate(" + x(d) + ")"; });

  // Add an axis and title.
  g.append("svg:g")
      .attr("class", "axis")
      .each(function(d) { d3.select(this).call(axis.scale(y[d])); })
    .append("svg:text")
      .attr("text-anchor", "middle")
      .attr("y", -9)
      .text(String);

  // Add and store a brush for each axis.
  g.append("svg:g")
      .attr("class", "brush")
      .each(function(d) { d3.select(this).call(y[d].brush = d3.svg.brush().y(y[d]).on("brush", brush)); })
    .selectAll("rect")
      .attr("x", -8)
      .attr("width", 16);

  // Handles a brush event, toggling the display of foreground lines.
  function brush() {
    var actives = dimensions.filter(function(p) { return !y[p].brush.empty(); }),
        extents = actives.map(function(p) { return y[p].brush.extent(); });

    // Get lines within extents
    var selected = [];
    foodstuff.map(function(d) {
      return actives.every(function(p, i) {
        return extents[i][0] <= d[p] && d[p] <= extents[i][1];
      }) ? selected.push(d) : null;
    });

    rows
    .style("display", function(d) {
    	      return actives.every(function(p, i) {
    	        return extents[i][0] <= d[p] && d[p] <= extents[i][1];
    	      }) ? null : "none";
  })

    	      
//    .style("display", function(d,i) {return i < 20 ? "none" : null })

    // Render selected lines
    foreground.clearRect(0,0,w+1,h+1);
    selected.map(function(d) {
      path(d, foreground);
    });
  }
  
      var columns = d3.keys(foodstuff[0]);

  	  var table = d3.select("#table").append("table"),
		    thead = table.append("thead");
		    tbody = table.append("tbody");
        
        thead.append("tr")
		    .selectAll("th")
		    .data(columns)
		    .enter()
		    .append("th")
		    .text(function(column) { return column; });
        
        rows = tbody.selectAll("tr")
		    .data(foodstuff)
		    .enter()
		    .append("tr")
		    .style("display", null);

		  //creates a cell for each column in each row
		  cells = rows.selectAll("td")
		    .data(function(row) {
		        return columns.map(function(column) {
		          return {column: column, value: row[column]};
		        });
		      })
		    .enter()
		    .append("td")
		      .html(function(d,i) { return i == 0 ? '* '+d.value+'' : d.value; });
});

function path(d, ctx) {
  ctx.beginPath();
  dimensions.map(function(p,i) {
    if (i == 0) {
      ctx.moveTo(x(p),y[p](d[p]));
    } else { 
      ctx.lineTo(x(p),y[p](d[p]));
    }
  });
  ctx.stroke();
};

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

foodstuff.csv