sankey-test-1

_.md

[ Launch: diagonal-test-1 ] 1217283ecbd2093073d4 by jdutta
[ Launch: quick-chart-vert ] 2c8553335067321f44a4 by jdutta
[ Launch: quick-chart-1 ] 99181b7e0eb393be4380 by jdutta
[ Launch: scratchpad ] 9721189 by jdutta

config.json

{"description":"sankey-test-1","endpoint":"","display":"svg","public":true,"require":[],"fileconfigs":{"inlet.js":{"default":true,"vim":false,"emacs":false,"fontSize":12},"_.md":{"default":true,"vim":false,"emacs":false,"fontSize":12},"config.json":{"default":true,"vim":false,"emacs":false,"fontSize":12},"s_action.csv":{"default":true,"vim":false,"emacs":false,"fontSize":12},"inlet.css":{"default":true,"vim":false,"emacs":false,"fontSize":12},"c_ip.csv":{"default":true,"vim":false,"emacs":false,"fontSize":12},"chart_data.csv":{"default":true,"vim":false,"emacs":false,"fontSize":12},"sankey.js":{"default":true,"vim":false,"emacs":false,"fontSize":12},"main.css":{"default":true,"vim":false,"emacs":false,"fontSize":12},"data1.json":{"default":true,"vim":false,"emacs":false,"fontSize":12},"data2.json":{"default":true,"vim":false,"emacs":false,"fontSize":12}},"fullscreen":false,"play":false,"loop":false,"restart":false,"autoinit":true,"pause":true,"loop_type":"pingpong","bv":false,"nclones":15,"clone_opacity":0.4,"duration":3000,"ease":"linear","dt":0.01,"ajax-caching":true,"thumbnail":"http://i.imgur.com/1im8jwg.gif"}

data1.json

{
  "nodes": [
    {"name": "Public"},
    {"name": "Internal"},
    {"name": "External"},
    {"name": "Risk-PCI"},
    {"name": "Risk-PII"},
    {"name": "Risk-SourceCode"},
    {"name": "Risk-Other"},
    {"name": "Type-Executable"},
    {"name": "Type-Health"},
    {"name": "Type-Other"}
  ],
  "links": [
    {"source": 0, "target": 3, "value": 4},
    {"source": 0, "target": 4, "value": 5},
    {"source": 0, "target": 5, "value": 1},
    {"source": 0, "target": 6, "value": 3},
    {"source": 1, "target": 3, "value": 1},
    {"source": 1, "target": 4, "value": 2},
    {"source": 1, "target": 5, "value": 4},
    {"source": 1, "target": 6, "value": 2},
    {"source": 2, "target": 3, "value": 1},
    {"source": 2, "target": 4, "value": 2},
    {"source": 2, "target": 6, "value": 1},
    {"source": 3, "target": 7, "value": 3},
    {"source": 3, "target": 9, "value": 5},
    {"source": 4, "target": 7, "value": 5},
    {"source": 5, "target": 7, "value": 2},
    {"source": 5, "target": 8, "value": 4},
    {"source": 6, "target": 8, "value": 6},
    {"source": 6, "target": 9, "value": 2}
  ]
}

data2.json

{
  "nodes": [
    {"name": "GoogleDrive"},
    {"name": "Dropbox"},
    {"name": "Box"},
    {"name": "Exposed"},
    {"name": "PCI"},
    {"name": "HIPAA"},
    {"name": "PII"}
  ],
  "links": [
    {"source": 0, "target": 3, "value": 478},
    {"source": 0, "target": 4, "value": 228},
    {"source": 0, "target": 5, "value": 25},
    {"source": 0, "target": 6, "value": 238},
    {"source": 1, "target": 3, "value": 133},
    {"source": 1, "target": 4, "value": 28},
    {"source": 1, "target": 5, "value": 11},
    {"source": 1, "target": 6, "value": 12},
    {"source": 2, "target": 3, "value": 51},
    {"source": 2, "target": 4, "value": 2},
    {"source": 2, "target": 5, "value": 2},
    {"source": 2, "target": 6, "value": 1}
  ]
}

inlet.js

// Testing of d3.sankey

// Configurable params
// Click on the number and see a magic slider appears to tweak it.
var config = {
  width: 700,
  height: 382
};

//var data = tributary.data1;
var data = tributary.data2;

var getUid = (function () {
  var counter = 0;
  return function() {
    return 'uid-' + counter++;
  }
})();

function assignUid(data) {
  data.nodes.forEach(function (d) {
    d.uid = getUid();
  });
  data.links.forEach(function (d) {
    d.uid = getUid();
  });
  return data;
}

console.log(data)
visualize(assignUid(data));


function visualize(data) {
    
  var svg = d3.select('svg');
  var gRoot = svg.append('svg:g')
        .attr('transform', 'translate(5, 90)');
  
  var color = d3.scale.category20();
  
  // Set the sankey diagram properties
  var sankey = d3.sankey()
      .nodeWidth(20)
      .nodePadding(10)
      .size([config.width, config.height])
      .nodes(data.nodes)
      .links(data.links)
      .layout(32);

  var path = sankey.link(); // path function
  
  var link = gRoot.selectAll(".link")
      .data(data.links)
      .enter().append("path")
      .attr("class", "link")
      .attr('id', function (d) { return d.uid; })
      .attr("d", path)
      //.style('fill', 'none').style('stroke', '#000').style('stroke-opacity', 0.2)
      .style("stroke-width", function(d) { return Math.max(1, d.dy); })
      .sort(function(a, b) { return b.dy - a.dy; });

  link.append("title")
        .text(function(d) {
			return d.source.name + " → " + d.target.name + "\n" + d.value; 
        });
  
  var node = gRoot.selectAll(".node")
      .data(data.nodes)
    .enter().append("g")
      .attr("class", "node")
      .attr("transform", function(d) { 
		  return "translate(" + d.x + "," + d.y + ")"; })
    .call(d3.behavior.drag()
      .origin(function(d) { return d; })
      .on("dragstart", function() { 
		  this.parentNode.appendChild(this); })
      .on("drag", dragmove));
  
  node.append("rect")
      .attr("height", function(d) { return d.dy; })
      .attr("width", sankey.nodeWidth())
      .style("fill", function(d) { 
		  return d.color = color(d.name); })
      .style("stroke", function(d) { 
		  return d3.rgb(d.color).darker(2); })
      .append("title")
      .text(function(d) { return d.name + "\n" + d.value; });
  
  node.append("text")
      .attr("x", -6)
      .attr("y", function(d) { return d.dy / 2; })
      .attr("dy", ".35em")
      .attr("text-anchor", "end")
      .attr("transform", null)
      .text(function(d) { return d.name; })
      .filter(function(d) { return d.x < config.width / 2; })
      .attr("x", 6 + sankey.nodeWidth())
      .attr("text-anchor", "start");
  
  node.on('mouseover', function (d) {
    console.log(d);
    d3.selectAll('.link').classed('active', false);
    d.sourceLinks.forEach(function (x) {
      d3.select('#' + x.uid).classed('active', true);
    })
    d.targetLinks.forEach(function (x) {
      d3.select('#' + x.uid).classed('active', true);
    })
  });
  node.on('mouseout', function (d) {
    d3.selectAll('.link').classed('active', false);
  });
  
  function dragmove(d) {
    var newX = Math.max(0, Math.min(config.width - d.dx, d3.event.x));
    var newY = Math.max(0, Math.min(config.height - d.dy, d3.event.y));
    d3.select(this).attr("transform", 
        "translate(" + (d.x /*= newX*/) + "," + (d.y = newY) + ")");
    sankey.relayout();
    link.attr("d", path);
  }
}

d3.selection.prototype.moveToFront = function() {
  return this.each(function() {
    this.parentNode.appendChild(this);
  });
};

main.css

.node rect {
  cursor: move;
  fill-opacity: .9;
  shape-rendering: crispEdges;
}

.node text {
  font-size: 12px;
  pointer-events: none;
  text-shadow: 0 1px 0 #fff;
}

.link {
  fill: none;
  stroke: #000;
  stroke-opacity: 0.1;
}

.link.active {
  stroke-opacity: 0.5;
}

.link:hover {
  stroke-opacity: 0.3;
}

sankey.js

d3.sankey = function() {
  var sankey = {},
      nodeWidth = 24,
      nodePadding = 8,
      size = [1, 1],
      nodes = [],
      links = [];

  sankey.nodeWidth = function(_) {
    if (!arguments.length) return nodeWidth;
    nodeWidth = +_;
    return sankey;
  };

  sankey.nodePadding = function(_) {
    if (!arguments.length) return nodePadding;
    nodePadding = +_;
    return sankey;
  };

  sankey.nodes = function(_) {
    if (!arguments.length) return nodes;
    nodes = _;
    return sankey;
  };

  sankey.links = function(_) {
    if (!arguments.length) return links;
    links = _;
    return sankey;
  };

  sankey.size = function(_) {
    if (!arguments.length) return size;
    size = _;
    return sankey;
  };

  sankey.layout = function(iterations) {
    computeNodeLinks();
    computeNodeValues();
    computeNodeBreadths();
    computeNodeDepths(iterations);
    computeLinkDepths();
    return sankey;
  };

  sankey.relayout = function() {
    computeLinkDepths();
    return sankey;
  };

  sankey.link = function() {
    var curvature = 0.5;

    function link(d) {
      var x0 = d.source.x + d.source.dx,
          x1 = d.target.x,
          xi = d3.interpolateNumber(x0, x1),
          x2 = xi(curvature),
          x3 = xi(1 - curvature),
          y0 = d.source.y + d.sy + d.dy / 2,
          y1 = d.target.y + d.ty + d.dy / 2;
      return "M" + x0 + "," + y0
           + "C" + x2 + "," + y0
           + " " + x3 + "," + y1
           + " " + x1 + "," + y1;
    }

    link.curvature = function(_) {
      if (!arguments.length) return curvature;
      curvature = +_;
      return link;
    };

    return link;
  };

  // Populate the sourceLinks and targetLinks for each node.
  // Also, if the source and target are not objects, assume they are indices.
  function computeNodeLinks() {
    nodes.forEach(function(node) {
      node.sourceLinks = [];
      node.targetLinks = [];
    });
    links.forEach(function(link) {
      var source = link.source,
          target = link.target;
      if (typeof source === "number") source = link.source = nodes[link.source];
      if (typeof target === "number") target = link.target = nodes[link.target];
      source.sourceLinks.push(link);
      target.targetLinks.push(link);
    });
  }

  // Compute the value (size) of each node by summing the associated links.
  function computeNodeValues() {
    nodes.forEach(function(node) {
      node.value = Math.max(
        d3.sum(node.sourceLinks, value),
        d3.sum(node.targetLinks, value)
      );
    });
  }

  // Iteratively assign the breadth (x-position) for each node.
  // Nodes are assigned the maximum breadth of incoming neighbors plus one;
  // nodes with no incoming links are assigned breadth zero, while
  // nodes with no outgoing links are assigned the maximum breadth.
  function computeNodeBreadths() {
    var remainingNodes = nodes,
        nextNodes,
        x = 0;

    while (remainingNodes.length) {
      nextNodes = [];
      remainingNodes.forEach(function(node) {
        node.x = x;
        node.dx = nodeWidth;
        node.sourceLinks.forEach(function(link) {
          nextNodes.push(link.target);
        });
      });
      remainingNodes = nextNodes;
      ++x;
    }

    //
    moveSinksRight(x);
    scaleNodeBreadths((size[0] - nodeWidth) / (x - 1));
  }

  function moveSourcesRight() {
    nodes.forEach(function(node) {
      if (!node.targetLinks.length) {
        node.x = d3.min(node.sourceLinks, function(d) { return d.target.x; }) - 1;
      }
    });
  }

  function moveSinksRight(x) {
    nodes.forEach(function(node) {
      if (!node.sourceLinks.length) {
        node.x = x - 1;
      }
    });
  }

  function scaleNodeBreadths(kx) {
    nodes.forEach(function(node) {
      node.x *= kx;
    });
  }

  function computeNodeDepths(iterations) {
    var nodesByBreadth = d3.nest()
        .key(function(d) { return d.x; })
        .sortKeys(d3.ascending)
        .entries(nodes)
        .map(function(d) { return d.values; });

    //
    initializeNodeDepth();
    resolveCollisions();
    for (var alpha = 1; iterations > 0; --iterations) {
      relaxRightToLeft(alpha *= 0.99);
      resolveCollisions();
      relaxLeftToRight(alpha);
      resolveCollisions();
    }

    function initializeNodeDepth() {
      var ky = d3.min(nodesByBreadth, function(nodes) {
        return (size[1] - (nodes.length - 1) * nodePadding) / d3.sum(nodes, value);
      });

      nodesByBreadth.forEach(function(nodes) {
        nodes.forEach(function(node, i) {
          node.y = i;
          node.dy = node.value * ky;
        });
      });

      links.forEach(function(link) {
        link.dy = link.value * ky;
      });
    }

    function relaxLeftToRight(alpha) {
      nodesByBreadth.forEach(function(nodes, breadth) {
        nodes.forEach(function(node) {
          if (node.targetLinks.length) {
            var y = d3.sum(node.targetLinks, weightedSource) / d3.sum(node.targetLinks, value);
            node.y += (y - center(node)) * alpha;
          }
        });
      });

      function weightedSource(link) {
        return center(link.source) * link.value;
      }
    }

    function relaxRightToLeft(alpha) {
      nodesByBreadth.slice().reverse().forEach(function(nodes) {
        nodes.forEach(function(node) {
          if (node.sourceLinks.length) {
            var y = d3.sum(node.sourceLinks, weightedTarget) / d3.sum(node.sourceLinks, value);
            node.y += (y - center(node)) * alpha;
          }
        });
      });

      function weightedTarget(link) {
        return center(link.target) * link.value;
      }
    }

    function resolveCollisions() {
      nodesByBreadth.forEach(function(nodes) {
        var node,
            dy,
            y0 = 0,
            n = nodes.length,
            i;

        // Push any overlapping nodes down.
        nodes.sort(ascendingDepth);
        for (i = 0; i < n; ++i) {
          node = nodes[i];
          dy = y0 - node.y;
          if (dy > 0) node.y += dy;
          y0 = node.y + node.dy + nodePadding;
        }

        // If the bottommost node goes outside the bounds, push it back up.
        dy = y0 - nodePadding - size[1];
        if (dy > 0) {
          y0 = node.y -= dy;

          // Push any overlapping nodes back up.
          for (i = n - 2; i >= 0; --i) {
            node = nodes[i];
            dy = node.y + node.dy + nodePadding - y0;
            if (dy > 0) node.y -= dy;
            y0 = node.y;
          }
        }
      });
    }

    function ascendingDepth(a, b) {
      return a.y - b.y;
    }
  }

  function computeLinkDepths() {
    nodes.forEach(function(node) {
      node.sourceLinks.sort(ascendingTargetDepth);
      node.targetLinks.sort(ascendingSourceDepth);
    });
    nodes.forEach(function(node) {
      var sy = 0, ty = 0;
      node.sourceLinks.forEach(function(link) {
        link.sy = sy;
        sy += link.dy;
      });
      node.targetLinks.forEach(function(link) {
        link.ty = ty;
        ty += link.dy;
      });
    });

    function ascendingSourceDepth(a, b) {
      return a.source.y - b.source.y;
    }

    function ascendingTargetDepth(a, b) {
      return a.target.y - b.target.y;
    }
  }

  function center(node) {
    return node.y + node.dy / 2;
  }

  function value(link) {
    return link.value;
  }

  return sankey;
};