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102 lines
2.6 KiB
HTML
102 lines
2.6 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<link href="../src/nv.d3.css" rel="stylesheet" type="text/css">
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<link href="teststyle.css" rel="stylesheet" type='text/css'>
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<body>
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<div class='navigation'>
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Tests:
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<a href="lineChartTest.html">Line Chart</a>
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<a href="stackedAreaChartTest.html">Stacked Area</a>
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<a href="../examples/cumulativeLineChart.html">Cumulative Line</a>
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<a href="ScatterChartTest.html">Scatter</a>
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</div>
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<h3>Example showing real time chart updating</h3>
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The chart below is a historical bar chart, which is ideal for visualizing time series data.<br/>
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First, you need to update the data model for the chart. In the example, we append a random number
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every half a second. Then, you call <strong>chart.update()</strong>.
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<div id='chart' class='chart half with-transitions'>
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<svg></svg>
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<button id='start-stop-button'>Start/Stop Stream</button>
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</div>
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<script src="../lib/d3.v3.js"></script>
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<script src="../nv.d3.js"></script>
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<script src="../src/tooltip.js"></script>
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<script src="../src/utils.js"></script>
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<script src="../src/interactiveLayer.js"></script>
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<script src="../src/models/legend.js"></script>
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<script src="../src/models/axis.js"></script>
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<script src="../src/models/scatter.js"></script>
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<script src="../src/models/line.js"></script>
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<script src="../src/models/lineChart.js"></script>
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<script src="../src/models/historicalBar.js"></script>
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<script src="../src/models/historicalBarChart.js"></script>
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<script>
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var chart;
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var data = [{
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key: "Stream 1",
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color: "orange",
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values: [
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{x: 1, y: 1}
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]
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}];
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nv.addGraph(function() {
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chart = nv.models.historicalBarChart();
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chart
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.x(function(d,i) { return d.x });
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chart.xAxis // chart sub-models (ie. xAxis, yAxis, etc) when accessed directly, return themselves, not the parent chart, so need to chain separately
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.tickFormat(d3.format(',.1f'))
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.axisLabel("Time")
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;
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chart.yAxis
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.axisLabel('Random Number')
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.tickFormat(d3.format(',.4f'));
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chart.showXAxis(true).showYAxis(true).rightAlignYAxis(true).margin({right: 90});
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d3.select('#chart svg')
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.datum(data)
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.transition().duration(500)
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.call(chart);
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nv.utils.windowResize(chart.update);
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return chart;
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});
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var x = 2;
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var run = true;
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setInterval(function(){
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if (!run) return;
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var spike = (Math.random() > 0.95) ? 10: 1;
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data[0].values.push({
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x: x,
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y: Math.random() * spike
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});
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if (data[0].values.length > 70) {
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data[0].values.shift();
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}
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x++;
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chart.update();
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}, 500);
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d3.select("#start-stop-button").on("click",function() {
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run = !run;
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});
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</script>
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</body>
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</html> |