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emeeks/d3-glyphEdge.js

Created September 8, 2016 02:30
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Gooey Sankey
Raw
readme.md

A sankey diagram where connection between nodes are represented by goo.

Raw
d3-glyphEdge.js
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define('d3-glyphEdge', ['exports'], factory) :
factory((global.d3_glyphEdge = {}));
}(this, function (exports) { 'use strict';
function halfArrow(d, nodeTargetSize, bodySize, headSize) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var headDistance = headSize * 3;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 - ( Math.PI / 2 );
var angle2 = angle0 + ( Math.PI / 2 );
var x1 = d.source.x + (headSize * Math.cos(angle1));
var y1 = d.source.y - (headSize * Math.sin(angle1));
var x2 = d.source.x + (headSize * Math.cos(angle2));
var y2 = d.source.y - (headSize * Math.sin(angle2));
var x3 = d.target.x - (headSize * Math.cos(angle1));
var y3 = d.target.y + (headSize * Math.sin(angle1));
var mx1 = d.source.x + (bodySize * Math.cos(angle1));
var my1 = d.source.y - (bodySize * Math.sin(angle1));
var mx2 = d.source.x + (bodySize * Math.cos(angle2));
var my2 = d.source.y - (bodySize * Math.sin(angle2));
var mx3 = d.target.x + (bodySize * Math.cos(angle1));
var my3 = d.target.y - (bodySize * Math.sin(angle1));
var dY = d.source.y - d.target.y;
var dX = d.source.x - d.target.x;
var midDiffY1 = my1 - my3;
var midDiffX1 = mx1 - mx3;
var diffY1 = y1 - y3;
var diffX1 = x1 - x3;
var pythag = Math.sqrt((midDiffX1 * midDiffX1) + (midDiffY1 * midDiffY1));
var pythag2 = Math.sqrt((dX * dX) + (dY * dY));
var adjX1 = mx2 - ((midDiffX1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var adjY1 = my2 - ((midDiffY1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var headX1 = x2 - ((diffX1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var headY1 = y2 - ((diffY1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var tipX = d.source.x - ((dX * (pythag2 - nodeTargetSize)) / pythag2);
var tipY = d.source.y - ((dY * (pythag2 - nodeTargetSize)) / pythag2);
return "M" + d.source.x + "," + d.source.y + "L" + mx2 + "," + my2 + "L" + adjX1 + "," + adjY1 + "L" + headX1 + "," + headY1 + "L" + tipX + "," + tipY + "L" + d.source.x + "," + d.source.y + "z";
};
function lineArc(d) {
var dx = d.target.x - d.source.x,
dy = d.target.y - d.source.y,
dr = Math.sqrt(dx * dx + dy * dy);
return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
};
function ribbon(d, bodySize) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 - ( Math.PI / 2 );
var angle2 = angle0 + ( Math.PI / 2 );
var mx1 = d.source.x + (bodySize * Math.cos(angle1));
var my1 = d.source.y - (bodySize * Math.sin(angle1));
var mx2 = d.source.x + (bodySize * Math.cos(angle2));
var my2 = d.source.y - (bodySize * Math.sin(angle2));
var mx3 = d.target.x - (bodySize * Math.cos(angle1));
var my3 = d.target.y + (bodySize * Math.sin(angle1));
var mx4 = d.target.x - (bodySize * Math.cos(angle2));
var my4 = d.target.y + (bodySize * Math.sin(angle2));
return "M" + mx1 + "," + my1 + "L" + mx2 + "," + my2 + "L" + mx3 + "," + my3 + "L" + mx4 + "," + my4 + "z";
}
function taffy(d, nodeSourceSize, nodeTargetSize, midpointSize) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 - ( Math.PI / 2 );
var angle2 = angle0 + ( Math.PI / 2 );
var x1 = d.source.x + (nodeSourceSize * Math.cos(angle1));
var y1 = d.source.y - (nodeSourceSize * Math.sin(angle1));
var x2 = d.source.x + (nodeSourceSize * Math.cos(angle2));
var y2 = d.source.y - (nodeSourceSize * Math.sin(angle2));
var x3 = d.target.x + (nodeTargetSize * Math.cos(angle2));
var y3 = d.target.y - (nodeTargetSize * Math.sin(angle2));
var x4 = d.target.x + (nodeTargetSize * Math.cos(angle1));
var y4 = d.target.y - (nodeTargetSize * Math.sin(angle1));
var mx1 = d.source.x + (midpointSize * Math.cos(angle1));
var my1 = d.source.y - (midpointSize * Math.sin(angle1));
var mx2 = d.source.x + (midpointSize * Math.cos(angle2));
var my2 = d.source.y - (midpointSize * Math.sin(angle2));
var mx3 = d.target.x + (midpointSize * Math.cos(angle1));
var my3 = d.target.y - (midpointSize * Math.sin(angle1));
var mx4 = d.target.x + (midpointSize * Math.cos(angle2));
var my4 = d.target.y - (midpointSize * Math.sin(angle2));
var midY2 = (my1 + my3) / 2;
var midX2 = (mx1 + mx3) / 2;
var midY1 = (my2 + my4) / 2;
var midX1 = (mx2 + mx4) / 2;
return "M" + x1 + "," + y1 + "L" + x2 + "," + y2 + " L " + midX1 + "," + midY1 + " L " + x3 + "," + y3 + " L " + x4 + "," + y4 + " L " + midX2 + "," + midY2 + "z";
};
function nail(d, nodeSize) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 - ( Math.PI / 2 );
var angle2 = angle0 + ( Math.PI / 2 );
var x1 = d.source.x + (nodeSize * Math.cos(angle1));
var y1 = d.source.y - (nodeSize * Math.sin(angle1));
var x2 = d.source.x + (nodeSize * Math.cos(angle2));
var y2 = d.source.y - (nodeSize * Math.sin(angle2));
return "M" + x1 + "," + y1 + "L" + x2 + "," + y2 + " L " + d.target.x + "," + d.target.y + "z";
};
function comet(d, nodeSize) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 - ( Math.PI / 2 );
var angle2 = angle0 + ( Math.PI / 2 );
var x1 = d.target.x + (nodeSize * Math.cos(angle1));
var y1 = d.target.y - (nodeSize * Math.sin(angle1));
var x2 = d.target.x + (nodeSize * Math.cos(angle2));
var y2 = d.target.y - (nodeSize * Math.sin(angle2));
return "M" + x1 + "," + y1 + "L" + x2 + "," + y2 + " L " + d.source.x + "," + d.source.y + "z";
};
function arrowhead(d, nodeTargetSize, bodySize, headSize) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var headDistance = headSize * 3;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 - ( Math.PI / 2 );
var angle2 = angle0 + ( Math.PI / 2 );
var x1 = d.source.x + (headSize * Math.cos(angle1));
var y1 = d.source.y - (headSize * Math.sin(angle1));
var x2 = d.source.x + (headSize * Math.cos(angle2));
var y2 = d.source.y - (headSize * Math.sin(angle2));
var x3 = d.target.x - (headSize * Math.cos(angle1));
var y3 = d.target.y + (headSize * Math.sin(angle1));
var x4 = d.target.x - (headSize * Math.cos(angle2));
var y4 = d.target.y + (headSize * Math.sin(angle2));
var mx1 = d.source.x + (bodySize * Math.cos(angle1));
var my1 = d.source.y - (bodySize * Math.sin(angle1));
var mx2 = d.source.x + (bodySize * Math.cos(angle2));
var my2 = d.source.y - (bodySize * Math.sin(angle2));
var mx3 = d.target.x + (bodySize * Math.cos(angle1));
var my3 = d.target.y - (bodySize * Math.sin(angle1));
var mx4 = d.target.x + (bodySize * Math.cos(angle2));
var my4 = d.target.y - (bodySize * Math.sin(angle2));
var dY = d.source.y - d.target.y;
var dX = d.source.x - d.target.x;
var midDiffY1 = my1 - my3;
var midDiffX1 = mx1 - mx3;
var midDiffY2 = my2 - my4;
var midDiffX2 = mx2 - mx4;
var diffY1 = y1 - y3;
var diffX1 = x1 - x3;
var diffY2 = y2 - y4;
var diffX2 = x2 - x4;
var pythag = Math.sqrt((midDiffX1 * midDiffX1) + (midDiffY1 * midDiffY1));
var pythag2 = Math.sqrt((dX * dX) + (dY * dY));
var adjX1 = mx2 - ((midDiffX1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var adjY1 = my2 - ((midDiffY1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var adjX2 = mx1 - ((midDiffX2 * (pythag - headDistance - nodeTargetSize)) / pythag);
var adjY2 = my1 - ((midDiffY2 * (pythag - headDistance - nodeTargetSize)) / pythag);
var headX2 = x1 - ((diffX2 * (pythag - headDistance - nodeTargetSize)) / pythag);
var headY2 = y1 - ((diffY2 * (pythag - headDistance - nodeTargetSize)) / pythag);
var headX1 = x2 - ((diffX1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var headY1 = y2 - ((diffY1 * (pythag - headDistance - nodeTargetSize)) / pythag);
var tipX = d.source.x - ((dX * (pythag2 - nodeTargetSize)) / pythag2);
var tipY = d.source.y - ((dY * (pythag2 - nodeTargetSize)) / pythag2);
return "M" + mx2 + "," + my2 + "L" + adjX1 + "," + adjY1 + "L" + headX1 + "," + headY1 + "L" + tipX + "," + tipY + "L" + headX2 + "," + headY2 + "L" + adjX2 + "," + adjY2 + "L" + mx1 + "," + my1 + "z";
};
function parallel(d, sourceSize, targetSize, edgeNumber) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 + ( (Math.PI * 0.75) + (edgeNumber * 0.25) );
var angle2 = angle0 + ( (Math.PI * 0.25) - (edgeNumber * 0.25) );
var x1 = d.source.x + (sourceSize * Math.cos(angle1));
var y1 = d.source.y - (sourceSize * Math.sin(angle1));
var x2 = d.target.x + (targetSize * Math.cos(angle2));
var y2 = d.target.y - (targetSize * Math.sin(angle2));
return {source: {x: x1, y: y1}, target: {x: x2, y: y2}};
}
function offset(d, nodeSize) {
var diffX = d.target.y - d.source.y;
var diffY = d.target.x - d.source.x;
var angle0 = ( Math.atan2( diffY, diffX ) + ( Math.PI / 2 ) );
var angle1 = angle0 + ( Math.PI * 0.75 );
var angle2 = angle0 + ( Math.PI * 0.25 );
var x1 = d.source.x + (nodeSize * Math.cos(angle1));
var y1 = d.source.y - (nodeSize * Math.sin(angle1));
var x2 = d.target.x + (nodeSize * Math.cos(angle2));
var y2 = d.target.y - (nodeSize * Math.sin(angle2));
return {source: {x: x1, y: y1}, target: {x: x2, y: y2}};
}
function particle(d, path, pathWidth, speed) {
pathWidth = pathWidth / 2;
d.particles = d.particles.filter(function (d) {return d.current < path.getTotalLength()});
if (d.frequency < 1) {
if (Math.random() < d.frequency) {
pushParticle();
}
} else {
for (var x = 0; x < d.frequency; x++) {
pushParticle();
}
}
function pushParticle() {
d.particles.push({current: 0, xOffset: pathWidth - (pathWidth * Math.random() * 2), yOffset: pathWidth - (pathWidth * Math.random() * 2)});
}
d.particles.forEach(function (particle) {
particle.current = particle.current + speed;
var currentPosition = path.getPointAtLength(particle.current);
particle.x = currentPosition.x + particle.xOffset;
particle.y = currentPosition.y + particle.yOffset;
});
};
var d = {
arrowhead: arrowhead,
comet: comet,
nail: nail,
taffy: taffy,
ribbon: ribbon,
lineArc: lineArc,
halfArrow: halfArrow
};
var project = {
offset: offset,
parallel: parallel
}
var mutate = {
particle: particle
}
var version = "1.0.0";
exports.version = version;
exports.d = d;
exports.project = project;
exports.mutate = mutate;
}));
Raw
d3.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 = .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) {
if (nextNodes.indexOf(link.target) < 0) {
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 *= .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;
};
Raw
energy.json
{"nodes":[
{"name":"Agricultural 'waste'"},
{"name":"Bio-conversion"},
{"name":"Liquid"},
{"name":"Losses"},
{"name":"Solid"},
{"name":"Gas"},
{"name":"Biofuel imports"},
{"name":"Biomass imports"},
{"name":"Coal imports"},
{"name":"Coal"},
{"name":"Coal reserves"},
{"name":"District heating"},
{"name":"Industry"},
{"name":"Heating and cooling - commercial"},
{"name":"Heating and cooling - homes"},
{"name":"Electricity grid"},
{"name":"Over generation / exports"},
{"name":"H2 conversion"},
{"name":"Road transport"},
{"name":"Agriculture"},
{"name":"Rail transport"},
{"name":"Lighting & appliances - commercial"},
{"name":"Lighting & appliances - homes"},
{"name":"Gas imports"},
{"name":"Ngas"},
{"name":"Gas reserves"},
{"name":"Thermal generation"},
{"name":"Geothermal"},
{"name":"H2"},
{"name":"Hydro"},
{"name":"International shipping"},
{"name":"Domestic aviation"},
{"name":"International aviation"},
{"name":"National navigation"},
{"name":"Marine algae"},
{"name":"Nuclear"},
{"name":"Oil imports"},
{"name":"Oil"},
{"name":"Oil reserves"},
{"name":"Other waste"},
{"name":"Pumped heat"},
{"name":"Solar PV"},
{"name":"Solar Thermal"},
{"name":"Solar"},
{"name":"Tidal"},
{"name":"UK land based bioenergy"},
{"name":"Wave"},
{"name":"Wind"}
],
"links":[
{"source":0,"target":1,"value":124.729},
{"source":1,"target":2,"value":0.597},
{"source":1,"target":3,"value":26.862},
{"source":1,"target":4,"value":280.322},
{"source":1,"target":5,"value":81.144},
{"source":6,"target":2,"value":35},
{"source":7,"target":4,"value":35},
{"source":8,"target":9,"value":11.606},
{"source":10,"target":9,"value":63.965},
{"source":9,"target":4,"value":75.571},
{"source":11,"target":12,"value":10.639},
{"source":11,"target":13,"value":22.505},
{"source":11,"target":14,"value":46.184},
{"source":15,"target":16,"value":104.453},
{"source":15,"target":14,"value":113.726},
{"source":15,"target":17,"value":27.14},
{"source":15,"target":12,"value":342.165},
{"source":15,"target":18,"value":37.797},
{"source":15,"target":19,"value":4.412},
{"source":15,"target":13,"value":40.858},
{"source":15,"target":3,"value":56.691},
{"source":15,"target":20,"value":7.863},
{"source":15,"target":21,"value":90.008},
{"source":15,"target":22,"value":93.494},
{"source":23,"target":24,"value":40.719},
{"source":25,"target":24,"value":82.233},
{"source":5,"target":13,"value":0.129},
{"source":5,"target":3,"value":1.401},
{"source":5,"target":26,"value":151.891},
{"source":5,"target":19,"value":2.096},
{"source":5,"target":12,"value":48.58},
{"source":27,"target":15,"value":7.013},
{"source":17,"target":28,"value":20.897},
{"source":17,"target":3,"value":6.242},
{"source":28,"target":18,"value":20.897},
{"source":29,"target":15,"value":6.995},
{"source":2,"target":12,"value":121.066},
{"source":2,"target":30,"value":128.69},
{"source":2,"target":18,"value":135.835},
{"source":2,"target":31,"value":14.458},
{"source":2,"target":32,"value":206.267},
{"source":2,"target":19,"value":3.64},
{"source":2,"target":33,"value":33.218},
{"source":2,"target":20,"value":4.413},
{"source":34,"target":1,"value":4.375},
{"source":24,"target":5,"value":122.952},
{"source":35,"target":26,"value":839.978},
{"source":36,"target":37,"value":504.287},
{"source":38,"target":37,"value":107.703},
{"source":37,"target":2,"value":611.99},
{"source":39,"target":4,"value":56.587},
{"source":39,"target":1,"value":77.81},
{"source":40,"target":14,"value":193.026},
{"source":40,"target":13,"value":70.672},
{"source":41,"target":15,"value":59.901},
{"source":42,"target":14,"value":19.263},
{"source":43,"target":42,"value":19.263},
{"source":43,"target":41,"value":59.901},
{"source":4,"target":19,"value":0.882},
{"source":4,"target":26,"value":400.12},
{"source":4,"target":12,"value":46.477},
{"source":26,"target":15,"value":525.531},
{"source":26,"target":3,"value":787.129},
{"source":26,"target":11,"value":79.329},
{"source":44,"target":15,"value":9.452},
{"source":45,"target":1,"value":182.01},
{"source":46,"target":15,"value":19.013},
{"source":47,"target":15,"value":289.366}
]}
Raw
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Gooey Sankey</title>
<style>
.node rect {
cursor: move;
fill-opacity: .9;
shape-rendering: crispEdges;
}
.node text {
pointer-events: none;
text-shadow: 0 1px 0 #fff;
}
.link {
fill: none;
}
svg {
position: absolute;
}
canvas {
position: absolute;
}
</style>
</head>
<body>
<canvas width="1000" height="1000" ></canvas>
<svg width="1000" height="1000" ></svg>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.16/d3.min.js" charset="utf-8" type="text/javascript"></script>
<script src="d3.sankey.js" charset="utf-8" type="text/javascript"></script>
<script src="d3-glyphEdge.js" charset="utf-8" type="text/javascript"></script>
<script type="text/javascript">
var margin = {top: 1, right: 1, bottom: 6, left: 1},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var formatNumber = d3.format(",.0f"),
format = function(d) { return formatNumber(d) + " TWh"; },
color = d3.scale.category20b();
var svg = d3.select("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
var filter = d3.select("svg").append("defs").append("filter").attr("id", "gooeyCodeFilter");
filter.append("feGaussianBlur").attr("id", "gaussblurrer").attr("in", "SourceGraphic").attr("stdDeviation", 6).attr("color-interpolation-filters", "sRGB").attr("result", "blur");
filter.append("feColorMatrix").attr("in", "blur").attr("mode", "matrix").attr("values", "1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 34 -7").attr("result", "gooey");
var unfilteredbaseG = d3.select("svg").append("g")
.attr("class", "bg")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
svg = svg.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.style("filter", "url(#gooeyCodeFilter)")
var sankey = d3.sankey()
.nodeWidth(15)
.nodePadding(10)
.size([width, height]);
var path = sankey.link();
var freqCounter = 1;
d3.json("energy.json", function(energy) {
energy.links.forEach(function (d) {
d.o_value = d.value;
d.value = 1;
})
sankey
.nodes(energy.nodes)
.links(energy.links)
.layout(32);
var linkExtent = d3.extent(energy.links, function (d) {return d.o_value});
var frequencyScale = d3.scale.linear().domain(linkExtent).range([0.01,0.5]);
var particleSize = d3.scale.linear().domain(linkExtent).range([1,5]);
unfilteredbaseG.selectAll("path.link")
.data(energy.links)
.enter()
.append("path")
.attr("d", path)
.style("stroke", "lightgray")
.style("fill", "none")
.style("stroke-opacity", 0.25)
.style("stroke-width", function(d) { return Math.max(1, d.dy); })
.each(function (link) {
link.particleSize = 3;
link.particleColor = link.source.color;
link.particles = [];
link.frequency = frequencyScale(link.o_value);
link.speed = (Math.random() + 1) * 5;
})
var linkG = svg
.selectAll("g.link")
.data(energy.links)
.enter()
.append("g")
.attr("class", "link")
d3.selectAll("g.link")
.append("path")
.attr("d", path)
.style("stroke", "none")
.style("stroke-width", function(d) { return Math.max(1, d.dy); })
.each(function (link) {
link.particleSize = 3;
link.particleColor = link.source.color;
link.particles = [];
link.frequency = frequencyScale(link.o_value);
link.speed = Math.random() + 1;
})
var node = svg.append("g").selectAll(".node")
.data(energy.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.replace(/ .*/, "")); })
.style("stroke", "none")
.append("title")
.text(function(d) { return d.name + "\n" + format(d.o_value); });
function dragmove(d) {
d3.select(this).attr("transform", "translate(" + d.x + "," + (d.y = Math.max(0, Math.min(height - d.dy, d3.event.y))) + ")");
sankey.relayout();
d3.selectAll("g.link > path").attr("d", path);
}
var start
function step(timestamp) {
particles();
window.requestAnimationFrame(step);
}
window.requestAnimationFrame(step);
function particles() {
d3.selectAll("g.link")
.each(function (d, i) {
d3_glyphEdge.mutate.particle(d, d3.select(this).select("path").node(), d.frequency, d.speed);
d3.select(this).selectAll("circle")
.data(d.particles)
.enter()
.append("circle")
.style("fill", d.source.color)
.attr("r", 5);
d3.select(this).selectAll("circle")
.data(d.particles)
.exit()
.remove();
d3.select(this).selectAll("circle")
.attr("cx", function (p) {return p.x})
.attr("cy", function (p) {return p.y});
})
}
});
</script>
</body>
</html>
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