| border: no | |
| height: 960 | |
| license: Apache-2.0 |
an iteration with a different color palette
here we construct a color scheme from the Sunlight Foundation Style Guide's network 30-color palette
a fork of Zoomable Sunburst with Labels from @vastur
Adapted from Mike Bostock's Zoomable Sunburst to include arc labels.
Click on any arc to zoom in. Click on the center circle to zoom out. Click on canvas background to reset zoom.
| <head> | |
| <style> | |
| body { | |
| font-family: Sans-serif; | |
| font-size: 11px; | |
| background: #E5E2E0; | |
| } | |
| .slice { | |
| cursor: pointer; | |
| } | |
| .slice .main-arc { | |
| stroke: #E5E2E0; | |
| stroke-width: 1px; | |
| } | |
| .slice .hidden-arc { | |
| fill: none; | |
| } | |
| .slice text { | |
| pointer-events: none; | |
| dominant-baseline: middle; | |
| text-anchor: middle; | |
| } | |
| </style> | |
| <script src='https://d3js.org/d3.v4.min.js'></script> | |
| </head> | |
| <body> | |
| <script src='vis.js'></script> | |
| </body> |
| const width = window.innerWidth, | |
| height = window.innerHeight, | |
| maxRadius = Math.min(width, height) / 2 - 5; | |
| const formatNumber = d3.format(',d'); | |
| const x = d3 | |
| .scaleLinear() | |
| .range([0, 2 * Math.PI]) | |
| .clamp(true); | |
| const y = d3.scaleSqrt().range([maxRadius * 0.1, maxRadius]); | |
| // sunlight style guide network colors | |
| // https://github.com/amycesal/dataviz-style-guide/blob/master/Sunlight-StyleGuide-DataViz.pdf | |
| const dark = [ | |
| '#B08B12', | |
| '#BA5F06', | |
| '#8C3B00', | |
| '#6D191B', | |
| '#842854', | |
| '#5F7186', | |
| '#193556', | |
| '#137B80', | |
| '#144847', | |
| '#254E00' | |
| ]; | |
| const mid = [ | |
| '#E3BA22', | |
| '#E58429', | |
| '#BD2D28', | |
| '#D15A86', | |
| '#8E6C8A', | |
| '#6B99A1', | |
| '#42A5B3', | |
| '#0F8C79', | |
| '#6BBBA1', | |
| '#5C8100' | |
| ]; | |
| const light = [ | |
| '#F2DA57', | |
| '#F6B656', | |
| '#E25A42', | |
| '#DCBDCF', | |
| '#B396AD', | |
| '#B0CBDB', | |
| '#33B6D0', | |
| '#7ABFCC', | |
| '#C8D7A1', | |
| '#A0B700' | |
| ]; | |
| const palettes = [light, mid, dark]; | |
| const lightGreenFirstPalette = palettes | |
| .map(d => d.reverse()) | |
| .reduce((a, b) => a.concat(b)); | |
| const color = d3.scaleOrdinal(lightGreenFirstPalette); | |
| const partition = d3.partition(); | |
| const arc = d3 | |
| .arc() | |
| .startAngle(d => x(d.x0)) | |
| .endAngle(d => x(d.x1)) | |
| .innerRadius(d => Math.max(0, y(d.y0))) | |
| .outerRadius(d => Math.max(0, y(d.y1))); | |
| const middleArcLine = d => { | |
| const halfPi = Math.PI / 2; | |
| const angles = [x(d.x0) - halfPi, x(d.x1) - halfPi]; | |
| const r = Math.max(0, (y(d.y0) + y(d.y1)) / 2); | |
| const middleAngle = (angles[1] + angles[0]) / 2; | |
| const invertDirection = middleAngle > 0 && middleAngle < Math.PI; // On lower quadrants write text ccw | |
| if (invertDirection) { | |
| angles.reverse(); | |
| } | |
| const path = d3.path(); | |
| path.arc(0, 0, r, angles[0], angles[1], invertDirection); | |
| return path.toString(); | |
| }; | |
| const textFits = d => { | |
| const CHAR_SPACE = 6; | |
| const deltaAngle = x(d.x1) - x(d.x0); | |
| const r = Math.max(0, (y(d.y0) + y(d.y1)) / 2); | |
| const perimeter = r * deltaAngle; | |
| return d.data.name.length * CHAR_SPACE < perimeter; | |
| }; | |
| const svg = d3 | |
| .select('body') | |
| .append('svg') | |
| .style('width', '100vw') | |
| .style('height', '100vh') | |
| .attr('viewBox', `${-width / 2} ${-height / 2} ${width} ${height}`) | |
| .on('click', () => focusOn()); // Reset zoom on canvas click | |
| d3.json( | |
| 'https://gist.githubusercontent.com/mbostock/4348373/raw/85f18ac90409caa5529b32156aa6e71cf985263f/flare.json', | |
| (error, root) => { | |
| if (error) throw error; | |
| root = d3.hierarchy(root); | |
| root.sum(d => d.size); | |
| const slice = svg.selectAll('g.slice').data(partition(root).descendants()); | |
| slice.exit().remove(); | |
| const newSlice = slice | |
| .enter() | |
| .append('g') | |
| .attr('class', 'slice') | |
| .on('click', d => { | |
| d3.event.stopPropagation(); | |
| focusOn(d); | |
| }); | |
| newSlice | |
| .append('title') | |
| .text(d => d.data.name + '\n' + formatNumber(d.value)); | |
| newSlice | |
| .append('path') | |
| .attr('class', 'main-arc') | |
| .style('fill', d => color((d.children ? d : d.parent).data.name)) | |
| .attr('d', arc); | |
| newSlice | |
| .append('path') | |
| .attr('class', 'hidden-arc') | |
| .attr('id', (_, i) => `hiddenArc${i}`) | |
| .attr('d', middleArcLine); | |
| const text = newSlice | |
| .append('text') | |
| .attr('display', d => (textFits(d) ? null : 'none')); | |
| // Add white contour | |
| text | |
| .append('textPath') | |
| .attr('startOffset', '50%') | |
| .attr('xlink:href', (_, i) => `#hiddenArc${i}`) | |
| .text(d => d.data.name) | |
| .style('fill', 'none') | |
| .style('stroke', '#E5E2E0') | |
| .style('stroke-width', 12) | |
| .style('stroke-linejoin', 'round'); | |
| text | |
| .append('textPath') | |
| .attr('startOffset', '50%') | |
| .attr('xlink:href', (_, i) => `#hiddenArc${i}`) | |
| .text(d => d.data.name); | |
| } | |
| ); | |
| function focusOn(d = { x0: 0, x1: 1, y0: 0, y1: 1 }) { | |
| // Reset to top-level if no data point specified | |
| const transition = svg | |
| .transition() | |
| .duration(750) | |
| .tween('scale', () => { | |
| const xd = d3.interpolate(x.domain(), [d.x0, d.x1]), | |
| yd = d3.interpolate(y.domain(), [d.y0, 1]); | |
| return t => { | |
| x.domain(xd(t)); | |
| y.domain(yd(t)); | |
| }; | |
| }); | |
| transition.selectAll('path.main-arc').attrTween('d', d => () => arc(d)); | |
| transition | |
| .selectAll('path.hidden-arc') | |
| .attrTween('d', d => () => middleArcLine(d)); | |
| transition | |
| .selectAll('text') | |
| .attrTween('display', d => () => (textFits(d) ? null : 'none')); | |
| moveStackToFront(d); | |
| // | |
| function moveStackToFront(elD) { | |
| svg | |
| .selectAll('.slice') | |
| .filter(d => d === elD) | |
| .each(function(d) { | |
| this.parentNode.appendChild(this); | |
| if (d.parent) { | |
| moveStackToFront(d.parent); | |
| } | |
| }); | |
| } | |
| } |
