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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="https://raw.github.com/mbostock/d3/master//d3.js"></script> | |
| <script type="text/javascript" src="https://raw.github.com/mbostock/d3/master/d3.time.js"></script> | |
| <style type="text/css"> | |
| body { | |
| font: 10px sans-serif; | |
| margin: 0; | |
| } | |
| path.line { | |
| fill: none; | |
| stroke: #666; | |
| stroke-width: 1.5px; | |
| } | |
| path.area { | |
| fill: #e7e7e7; | |
| } | |
| .axis { | |
| shape-rendering: crispEdges; | |
| } | |
| .x.axis line { | |
| stroke: #fff; | |
| } | |
| .x.axis .minor { | |
| stroke-opacity: .5; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| .y.axis line, .y.axis path { | |
| fill: none; | |
| stroke: #000; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| var m = [20, 40, 20, 20], | |
| w = 960 - m[1] - m[3], | |
| h = 240 - m[0] - m[2], | |
| parse = d3.time.format("%b %Y").parse; | |
| // Scales. Note the inverted domain for the y-scale: bigger is up! | |
| var x = d3.time.scale().range([0, w]), | |
| y = d3.scale.linear().range([h, 0]); | |
| // Axes. | |
| var xAxis = d3.svg.axis().scale(x).tickSize(-h).tickSubdivide(true), | |
| yAxis = d3.svg.axis().scale(y).ticks(4).orient("right"); | |
| // A line generator, for the dark stroke. | |
| var line = d3.svg.line() | |
| .interpolate("monotone") | |
| .x(function(d) { return x(d.date); }) | |
| .y(function(d) { return y(d.price); }); | |
| values = [] | |
| var d1 = new Date ("12/1/2011"); | |
| count = 0; | |
| for (i=0; i<=50; i++) { | |
| d2 = new Date(d1); | |
| values.push({ | |
| date: d2.setMinutes(d1.getMinutes() + (i*1)), | |
| price: Math.random() * 20 | |
| }); | |
| count++; | |
| } | |
| // Compute the minimum and maximum date, and the maximum price. | |
| x.domain([values[0].date, values[values.length - 1].date]); | |
| y.domain([0, d3.max(values, function(d) { return d.price; })]); | |
| // Add an SVG element with the desired dimensions and margin. | |
| svg = d3.select("body").append("svg") | |
| .attr("width", w + m[1] + m[3]) | |
| .attr("height", h + m[0] + m[2]) | |
| .append("g") | |
| .attr("transform", "translate(" + m[3] + "," + m[0] + ")"); | |
| // Add the x-axis. | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + h + ")") | |
| .call(xAxis); | |
| // Add the y-axis. | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .attr("transform", "translate(" + w + ",0)") | |
| .call(yAxis); | |
| // Add the line path. | |
| svg.append("path") | |
| .attr("class", "line") | |
| // .attr("clip-path", "url(#clip)") | |
| .attr("d", line(values)); | |
| function redraw() { | |
| svg.selectAll("path") | |
| .data([values]) | |
| .attr("transform", "translate(" + x(1) + ")") | |
| .attr("d", line) | |
| .transition() | |
| .ease("linear") | |
| .duration(1000) | |
| .attr("transform", "translate(" + x(0) + ")"); | |
| } | |
| setInterval(function() { | |
| var v = values.shift(); | |
| console.log(v); | |
| values.push({ | |
| date: d2.setMinutes(d1.getMinutes() + (count*1)), | |
| price: Math.random() * 20 | |
| }); | |
| redraw(); | |
| count++; | |
| }, 1000); | |
| </script> | |
| </body> | |
| </html> |
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