-
-
Save bstaats/1871195 to your computer and use it in GitHub Desktop.
Stacked Aera Spline 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
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| svg { | |
| font: 10px sans-serif; | |
| } | |
| .Beer { | |
| fill: #ccc; | |
| stroke: none; | |
| stroke-width: 1.5px; | |
| } | |
| .Wine { | |
| fill: #ddd; | |
| stroke: none; | |
| stroke-width: 1.5px; | |
| } | |
| .axis path, .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://mbostock.github.com/d3/d3.js?2.7.2"></script> | |
| <script> | |
| var margin = {top: 10, right: 10, bottom: 20, left: 40}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom, | |
| duration = 2000, | |
| domain = [new Date(2012, 01, 01), new Date(2012, 01, 29)], | |
| random = d3.random.normal(10, 2.5), | |
| context = ['Beer','Wine'], | |
| data = d3.layout.stack()(context.map(function(k){ | |
| return d3.time.days(domain[0],domain[1]).map(function(d){ | |
| return {x:d, y:random(), key:k}; | |
| }) | |
| })), | |
| x = d3.time.scale().domain(domain).range([0, width]), | |
| y = d3.scale.linear().domain([0,d3.max(d3.merge(data),function(d){return d.y0 + d.y;})]).range([height,0]); | |
| var area = d3.svg.area() | |
| .interpolate("basis") | |
| .x(function(d) { return x(d.x); }) | |
| .y0(function(d) { return y(d.y0); }) | |
| .y1(function(d) { return y(d.y0+d.y); }); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| svg.append("defs").append("clipPath") | |
| .attr("id", "clip") | |
| .append("rect") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var axis = svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(x.axis = d3.svg.axis().scale(x).orient("bottom")); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(d3.svg.axis().scale(y).orient("left")); | |
| var g = svg.append("g") | |
| .attr("clip-path", "url(#clip)"); | |
| var path = g.selectAll('path') | |
| .data(data) | |
| .enter().append('path') | |
| .attr("class", function(d){ return 'area '+d[0].key;}) | |
| .attr("d", function(d){ return area(d)}); | |
| setTimeout(tick, duration); | |
| function tick() { | |
| var past = domain[0]; | |
| //slide window | |
| domain[0].setDate(domain[0].getDate()+1); | |
| domain[1].setDate(domain[1].getDate()+1); | |
| // reset x | |
| x.domain(domain); | |
| // push a new data point onto the back | |
| var my = 0; | |
| data.forEach(function(d,i){ | |
| var r = random(); | |
| d.push({x:domain[1],y:r,y0:my,key:context[i]}); | |
| my += r; | |
| }); | |
| // rest y | |
| y.domain([0,Math.max(my,y.domain()[1])]); | |
| // redraw the area | |
| d3.selectAll('path.area') | |
| .attr("d", area) | |
| .attr("transform", null); | |
| // slide the x-axis left | |
| axis.transition() | |
| .duration(duration) | |
| .ease("linear") | |
| .call(x.axis); | |
| // slide it to the left | |
| d3.selectAll('path.area') | |
| .transition() | |
| .duration(duration) | |
| .ease("linear") | |
| .attr("transform", "translate(" + x(domain[0]) + ")"); | |
| // pop the old data point off the front | |
| data.forEach(function(d){ | |
| d.shift(); | |
| }); | |
| setTimeout(tick, duration); | |
| } | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment