//////////////////////////////////////////////////////////// //////////////////////// Set-up //////////////////////////// //////////////////////////////////////////////////////////// var screenWidth = $(window).width(); var margin = {left: 50, top: 10, right: 50, bottom: 10}, width = Math.min(screenWidth, 837) - margin.left - margin.right, height = Math.min(screenWidth, 1000)*5/6 - margin.top - margin.bottom; var svg = d3.select("#chart").append("svg") .attr("width", (width + margin.left + margin.right)) .attr("height", (height + margin.top + margin.bottom)); var wrapper = svg.append("g").attr("class", "chordWrapper") .attr("transform", "translate(" + (width / 2 + margin.left) + "," + (height / 2 + margin.top) + ")");; var outerRadius = Math.min(width, height) / 2 - 38, innerRadius = outerRadius * 0.95, opacityDefault = 0.7; //default opacity of chords //////////////////////////////////////////////////////////// ////////////////////////// Data //////////////////////////// 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[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], ]; var chord = d3.layout.chord() .padding(.02) .sortSubgroups(d3.descending) //sort the chords inside an arc from high to low .sortChords(d3.descending) //which chord should be shown on top when chords cross. Now the biggest chord is at the bottom .matrix(matrix); var arc = d3.svg.arc() .innerRadius(innerRadius) .outerRadius(outerRadius); var path = d3.svg.chord() .radius(innerRadius); var fill = d3.scale.ordinal() .domain(d3.range(Names.length)) .range(["#9fe901","#f9fd01","#fb31dd","#7701fd","#01e8fd"]); //////////////////////////////////////////////////////////// //////////////////// Draw outer Arcs /////////////////////// //////////////////////////////////////////////////////////// var g = wrapper.selectAll("g.group") .data(chord.groups) .enter().append("g") .attr("class", "group");; g.append("path") .style("stroke", function(d) { return fill(d.index); }) .style("fill", function(d) { return fill(d.index); }) .attr("d", arc); //////////////////////////////////////////////////////////// ////////////////////// Append Names //////////////////////// //////////////////////////////////////////////////////////// g.append("text") .each(function(d) { d.angle = ((d.startAngle + d.endAngle) / 2);}) .attr("dy", ".35em") .attr("class", "titles") .attr("text-anchor", function(d) { return d.angle > Math.PI ? "end" : null; }) .attr("transform", function(d,i) { var c = arc.centroid(d); return "rotate(" + (d.angle * 180 / Math.PI - 90) + ")" + "translate(" + (innerRadius + 27) + ")" + (d.angle > Math.PI ? "rotate(180)" : "") }) .text(function(d,i) { return Names[i]; }); //+ "translate(" + (innerRadius + 55) + ")" //////////////////////////////////////////////////////////// //////////////////// Draw inner chords ///////////////////// //////////////////////////////////////////////////////////// var colors = ["#3fcf73","#ead63d","#01e8fd","#fc2f2f","#843fcf"]; var chords = wrapper.selectAll("path.chord") .data(chord.chords) .enter().append("path") .attr("class", "chord") .style("stroke", "none") .style("fill", function(d,i) { return fill(d.target.index); }) .style("opacity", opacityDefault) .attr("d", path); //////////////////////////////////////////////////////////// ///////////////////////// Tooltip ////////////////////////// //////////////////////////////////////////////////////////// //Arcs g.append("title") .text(function(d, i) {return Math.round(d.value) + " food in " + Names[i];}); //Chords chords.append("title") .text(function(d) { return [Math.round(d.source.value), " food to ", Names[d.target.index], " from ", Names[d.source.index]].join(""); });