By create large random datasets, we can create charts that adapt and react to any dataset. This bl.ock allows users to generate any desired number of lines and any desired number of points and see the response of the chart change over time.
Last active
September 12, 2019 13:36
-
-
Save jonsadka/fa05f8d53d4e8b5f262e to your computer and use it in GitHub Desktop.
Interactive donut chart with transitions
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| license: gpl-3.0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE HTML> | |
| <meta charset="utf-8"> | |
| <html> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| div { | |
| padding-left: 100px; | |
| padding-top: 10px; | |
| width: 30%; | |
| margin: 0 auto; | |
| font: 14px; | |
| } | |
| input { | |
| border-top: 0; | |
| border-left: 0; | |
| border-right: 0; | |
| text-align: center; | |
| font: 14px; | |
| width: 60px; | |
| } | |
| </style> | |
| <body> | |
| <div> | |
| Number of datapoints: | |
| <input id="datacount" onkeyup="render()" value="15" name="datapoints"></input> | |
| </div> | |
| <script src="https://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500 - 29; // adjust for height of input bar div | |
| var color = d3.scale.category20(); | |
| // draw and append the container | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width).attr("height", height); | |
| // set the thickness of the inner and outer radii | |
| var min = Math.min(width, height); | |
| var oRadius = min / 2 * 0.9; | |
| var iRadius = min / 2 * 0.85; | |
| // construct default pie laoyut | |
| var pie = d3.layout.pie().value(function(d){ return d; }).sort(null); | |
| // construct arc generator | |
| var arc = d3.svg.arc() | |
| .outerRadius(oRadius) | |
| .innerRadius(iRadius); | |
| // creates the pie chart container | |
| var g = svg.append('g') | |
| var g = svg.append('g') | |
| .attr('transform', function(){ | |
| if ( window.innerWidth >= 960 ) var shiftWidth = width / 2; | |
| if ( window.innerWidth < 960 ) var shiftWidth = width / 3; | |
| return 'translate(' + shiftWidth + ',' + height / 2 + ')'; | |
| }) | |
| // generate random data | |
| var data = makeData(+document.getElementById("datacount").value); | |
| // enter data and draw pie chart | |
| var path = g.datum(data).selectAll("path") | |
| .data(pie) | |
| .enter().append("path") | |
| .attr("class","piechart") | |
| .attr("fill", function(d,i){ return color(i); }) | |
| .attr("d", arc) | |
| .each(function(d){ this._current = d; }) | |
| function render(){ | |
| // generate new random data | |
| data = makeData(+document.getElementById("datacount").value); | |
| // add transition to new path | |
| g.datum(data).selectAll("path").data(pie).transition().duration(1000).attrTween("d", arcTween) | |
| // add any new paths | |
| g.datum(data).selectAll("path") | |
| .data(pie) | |
| .enter().append("path") | |
| .attr("class","piechart") | |
| .attr("fill", function(d,i){ return color(i); }) | |
| .attr("d", arc) | |
| .each(function(d){ this._current = d; }) | |
| // remove data not being used | |
| g.datum(data).selectAll("path") | |
| .data(pie).exit().remove(); | |
| } | |
| render(); | |
| setInterval(render,2000); | |
| function makeData(size){ | |
| return d3.range(size).map(function(item){ | |
| return Math.random()*100; | |
| }); | |
| }; | |
| // Store the displayed angles in _current. | |
| // Then, interpolate from _current to the new angles. | |
| // During the transition, _current is updated in-place by d3.interpolate. | |
| function arcTween(a) { | |
| var i = d3.interpolate(this._current, a); | |
| this._current = i(0); | |
| return function(t) { | |
| return arc(i(t)); | |
| }; | |
| } | |
| </script> | |
| </body> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment