Simple Gist template to create and publish visualizations with D3.js V5.
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D3 V5 Gist template
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| [ | |
| { | |
| "id": "subj-1", | |
| "type": "subject", | |
| "sibling": "doubt-1", | |
| "start": 0, | |
| "end": 1099, | |
| "open": false, | |
| "level": 2 | |
| }, | |
| { | |
| "id": "doubt-1", | |
| "type": "doubt", | |
| "sibling": "subj-1", | |
| "start": 1100, | |
| "end": 1200, | |
| "open": false, | |
| "level": 5 | |
| } | |
| ] |
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| <!doctype html> | |
| <html lang=en> | |
| <head> | |
| <meta charset=utf-8> | |
| <title>Title</title> | |
| <style> | |
| svg { | |
| background: #fbfbfb; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <script> | |
| const margin = {top: 10, right: 10, bottom: 10, left: 10}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| let x = d3.scaleLinear() | |
| .range([0, width]) | |
| .domain([0,1200]) | |
| const svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom); | |
| const g = svg.append("g").attr("transform", "translate(" + margin.left + "," + (margin.top + height/2) + ")"); | |
| const line = g.append('line') | |
| .classed('base-line', true) | |
| .attr('x1', x(0)).attr('y1', 0) | |
| .attr('x2', x(1200)).attr('y2', 0) | |
| .style('stroke-width', 1) | |
| .style('stroke', 'LAVENDER'); | |
| let segments = g.selectAll('.segments'); | |
| const update = (data) => { | |
| // console.log(data); | |
| segments = segments.data(data, d=>d.id ); | |
| segments.exit().remove(); | |
| segments = segments.enter().append('path') | |
| .attr('class', d=>d.type) | |
| .classed('segment', true) | |
| .attr('stroke-width', 2) | |
| .attr('stroke', 'black') | |
| .attr('fill', 'transparent') | |
| .style('cursor', 'pointer') | |
| .on('click', d=>{ | |
| let elment = data.find(dd=>dd.id===d.id) | |
| elment.open = !elment.open | |
| let sibling = data.find(dd=>dd.id===d.sibling.id) | |
| sibling.open = !sibling.open | |
| update(data); | |
| }) | |
| .merge(segments) | |
| .attr('d', d=>drawSegments(d)) | |
| } | |
| const drawSegments = (d) => { | |
| let path_d = ``; | |
| if (d.open) { | |
| path_d = `M ${x(d.start)},${0} l ${x(d.end) - x(d.start)},0`; | |
| } else { | |
| if (d.type == 'doubt') { | |
| const level = d.level; | |
| const w = x(d.end) - x(d.start); | |
| const s = x(d.sibling.end) - x(d.sibling.start); | |
| const l = w + s; | |
| const r = w/level/2; | |
| const curve = Math.PI*(r) | |
| let segment = (l - curve*level)/(2*level) | |
| segment = segment<0?0:segment; | |
| path_d = `M ${x(d.start)},${0} `; | |
| for (var i = 1; i <= level; i++) { | |
| if (i%2!==0) { | |
| path_d += `v ${ -1 * segment } a ${r} ${r*1} 180 0 1 ${2*r} 0 v ${ 1 * segment}`; | |
| } else { | |
| path_d += `v ${ 1 * segment } a ${r} ${r*1} 180 0 0 ${2*r} 0 v ${ -1 * segment}`; | |
| } | |
| } | |
| // console.log(path_d) | |
| } else if (d.type == 'subject') { | |
| path_d = `M ${x(d.start)},${0}`; | |
| } | |
| } | |
| return path_d; | |
| } | |
| d3.json('data.json').then(data=>{ | |
| data.forEach(d=>{ d.sibling = data.find( dd => dd.id === d.sibling ); }) | |
| update(data); | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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