Created
November 13, 2017 02:44
-
-
Save pjsier/28d1d410b64dcd74d9dab348514ed256 to your computer and use it in GitHub Desktop.
Line Chart Transition
This file contains hidden or 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: mit |
This file contains hidden or 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
| month | value | |
|---|---|---|
| 08/2016 | 6 | |
| 09/2016 | 5 | |
| 10/2016 | 8 | |
| 11/2016 | 9 | |
| 12/2016 | 8 | |
| 01/2017 | 10 | |
| 02/2017 | 12 | |
| 03/2017 | 15 | |
| 04/2017 | 17 | |
| 05/2017 | 6 | |
| 06/2017 | 8 | |
| 07/2017 | 9 | |
| 08/2017 | 15 | |
| 09/2017 | 18 | |
| 10/2017 | 20 | |
| 11/2017 | 25 | |
| 12/2017 | 29 |
This file contains hidden or 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> | |
| <html> | |
| <head> | |
| <title>Line Chart Transition</title> | |
| <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> | |
| <meta charset='utf-8' /> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { | |
| font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; | |
| } | |
| #chart { | |
| max-width: 600px; | |
| max-height: 400px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="chart"></div> | |
| <script src="script.js"></script> | |
| <script> | |
| var lines = timelineChart(); | |
| function resize() { | |
| if (d3.select("#chart svg").empty()) { | |
| return; | |
| } | |
| lines.width(+d3.select("#chart").style("width").replace(/(px)/g, "")) | |
| .height(+d3.select("#chart").style("height").replace(/(px)/g, "")); | |
| d3.select("#chart").call(lines); | |
| } | |
| d3.csv("data.csv", function (data) { | |
| d3.select("#chart").datum(data).call(lines); | |
| d3.select(window).on('resize', resize); | |
| resize(); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
This file contains hidden or 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
| function timelineChart() { | |
| var margin = { top: 20, right: 20, bottom: 50, left: 50 }, | |
| width = 350, | |
| height = 350, | |
| parseTime = d3.timeParse("%m/%Y"), | |
| timeValue = function(d) { return parseTime(d.month); }, | |
| dataValue = function (d) { return +d.value; }, | |
| color = "steelblue"; | |
| // From https://bl.ocks.org/mbostock/5649592 | |
| function transition(path) { | |
| path.transition() | |
| .duration(2000) | |
| .attrTween("stroke-dasharray", tweenDash); | |
| } | |
| function tweenDash() { | |
| var l = this.getTotalLength(), | |
| i = d3.interpolateString("0," + l, l + "," + l); | |
| return function (t) { return i(t); }; | |
| } | |
| function chart(selection) { | |
| selection.each(function (data) { | |
| data = data.map(function (d, i) { | |
| return { time: timeValue(d), value: dataValue(d) }; | |
| }); | |
| var x = d3.scaleTime() | |
| .rangeRound([0, width - margin.left - margin.right]) | |
| .domain(d3.extent(data, function(d) { return d.time; })); | |
| var y = d3.scaleLinear() | |
| .rangeRound([height - margin.top - margin.bottom, 0]) | |
| .domain(d3.extent(data, function(d) { return d.value; })); | |
| var line = d3.line() | |
| .x(function(d) { return x(d.time); }) | |
| .y(function(d) { return y(d.value); }); | |
| var svg = d3.select(this).selectAll("svg").data([data]); | |
| var gEnter = svg.enter().append("svg").append("g"); | |
| gEnter.append("path") | |
| .datum(data) | |
| .attr("class", "data") | |
| .attr("fill", "none") | |
| .attr("stroke", "steelblue") | |
| .attr("stroke-linejoin", "round") | |
| .attr("stroke-linecap", "round") | |
| .attr("stroke-width", 4); | |
| gEnter.append("g").attr("class", "axis x"); | |
| gEnter.append("g").attr("class", "axis y") | |
| .append("text") | |
| .attr("fill", "#000") | |
| .attr("transform", "rotate(-90)") | |
| .attr("y", 6) | |
| .attr("dy", "0.71em") | |
| .attr("text-anchor", "end") | |
| .text("Data"); | |
| gEnter.append("path") | |
| .attr("class", "data"); | |
| var svg = selection.select("svg"); | |
| svg.attr('width', width).attr('height', height); | |
| var g = svg.select("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| g.select("g.axis.x") | |
| .attr("transform", "translate(0," + (height - margin.bottom) + ")") | |
| .call(d3.axisBottom(x).ticks(5)) | |
| .select(".domain") | |
| .remove(); | |
| g.select("g.axis.y") | |
| .attr("class", "axis y") | |
| .call(d3.axisLeft(y)); | |
| g.select("path.data") | |
| .datum(data) | |
| .attr("d", line) | |
| .call(transition); | |
| }); | |
| } | |
| chart.margin = function (_) { | |
| if (!arguments.length) return margin; | |
| margin = _; | |
| return chart; | |
| }; | |
| chart.width = function (_) { | |
| if (!arguments.length) return width; | |
| width = _; | |
| return chart; | |
| }; | |
| chart.height = function (_) { | |
| if (!arguments.length) return height; | |
| height = _; | |
| return chart; | |
| }; | |
| chart.parseTime = function (_) { | |
| if (!arguments.length) return parseTime; | |
| parseTime = _; | |
| return chart; | |
| }; | |
| chart.timeValue = function (_) { | |
| if (!arguments.length) return timeValue; | |
| timeValue = _; | |
| return chart; | |
| }; | |
| chart.dataValue = function (_) { | |
| if (!arguments.length) return dataValue; | |
| dataValue = _; | |
| return chart; | |
| }; | |
| return chart; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment