light-chart
Version:
Charts for mobile visualization.
237 lines (226 loc) • 8.44 kB
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>面积图</title>
<link rel="stylesheet" href="./assets/common.css">
<style type="text/css">
.chartWrapper {
position: relative;
}
.chartWrapper > canvas {
position: absolute;
left: 0;
top: 0;
pointer-events:none;
}
.chartLineWrapper {
width: 600px;
overflow-x: scroll;
}
</style>
</head>
<body>
<div>
<div class="chartWrapper">
<div class="chartLineWrapper">
<canvas id="myChart"></canvas>
</div>
<canvas id="myChartAxis"></canvas>
</div>
</div>
<script src="./assets/jquery-3.2.1.min.js"></script>
<script src="../build/f2-all.js"></script>
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>
<script>
const { Canvas } = F2.G;
// 两层 canvas 方案：
const Plugin = {
beforeRenderAxis(chart) {
const canvas = new Canvas({
el: 'myChartAxis',
width: 600,
height: 300,
pixelRatio: window.devicePixelRatio,
});
const axisController = chart.get('axisController');
axisController.frontPlot = canvas.addGroup();
axisController.canvas = canvas;
},
beforeCanvasDraw(chart) {
const axisController = chart.get('axisController');
const padding = chart.get('padding');
const frontPlot = axisController.frontPlot;
frontPlot.addShape('rect', {
attrs: {
x: 0,
y: 0,
width: padding[3],
height: chart.get('height') - padding[0] - padding[2],
fill: '#fff',
},
zIndex: -1,
});
frontPlot.sort();
axisController.canvas.draw();
},
};
const data = [
{ value: 63.4, city: 'New York', date: '2011-10-01' },
{ value: 62.7, city: 'San Francisco', date: '2011-10-01' },
{ value: 72.2, city: 'Austin', date: '2011-10-01' },
{ value: 58, city: 'New York', date: '2011-10-02' },
{ value: 59.9, city: 'San Francisco', date: '2011-10-02' },
{ value: 67.7, city: 'Austin', date: '2011-10-02' },
{ value: 53.3, city: 'New York', date: '2011-10-03' },
{ value: 59.1, city: 'San Francisco', date: '2011-10-03' },
{ value: 69.4, city: 'Austin', date: '2011-10-03' },
{ value: 55.7, city: 'New York', date: '2011-10-04' },
{ value: 58.8, city: 'San Francisco', date: '2011-10-04' },
{ value: 68, city: 'Austin', date: '2011-10-04' },
{ value: 64.2, city: 'New York', date: '2011-10-05' },
{ value: 58.7, city: 'San Francisco', date: '2011-10-05' },
{ value: 72.4, city: 'Austin', date: '2011-10-05' },
{ value: 58.8, city: 'New York', date: '2011-10-06' },
{ value: 57, city: 'San Francisco', date: '2011-10-06' },
{ value: 77, city: 'Austin', date: '2011-10-06' },
{ value: 57.9, city: 'New York', date: '2011-10-07' },
{ value: 56.7, city: 'San Francisco', date: '2011-10-07' },
{ value: 82.3, city: 'Austin', date: '2011-10-07' },
{ value: 61.8, city: 'New York', date: '2011-10-08' },
{ value: 56.8, city: 'San Francisco', date: '2011-10-08' },
{ value: 78.9, city: 'Austin', date: '2011-10-08' },
{ value: 69.3, city: 'New York', date: '2011-10-09' },
{ value: 56.7, city: 'San Francisco', date: '2011-10-09' },
{ value: 68.8, city: 'Austin', date: '2011-10-09' },
{ value: 71.2, city: 'New York', date: '2011-10-10' },
{ value: 60.1, city: 'San Francisco', date: '2011-10-10' },
{ value: 68.7, city: 'Austin', date: '2011-10-10' },
{ value: 68.7, city: 'New York', date: '2011-10-11' },
{ value: 61.1, city: 'San Francisco', date: '2011-10-11' },
{ value: 70.3, city: 'Austin', date: '2011-10-11' },
{ value: 61.8, city: 'New York', date: '2011-10-12' },
{ value: 61.5, city: 'San Francisco', date: '2011-10-12' },
{ value: 75.3, city: 'Austin', date: '2011-10-12' },
{ value: 63, city: 'New York', date: '2011-10-13' },
{ value: 64.3, city: 'San Francisco', date: '2011-10-13' },
{ value: 76.6, city: 'Austin', date: '2011-10-13' },
{ value: 66.9, city: 'New York', date: '2011-10-14' },
{ value: 67.1, city: 'San Francisco', date: '2011-10-14' },
{ value: 66.6, city: 'Austin', date: '2011-10-14' },
{ value: 61.7, city: 'New York', date: '2011-10-15' },
{ value: 64.6, city: 'San Francisco', date: '2011-10-15' },
{ value: 68, city: 'Austin', date: '2011-10-15' },
{ value: 61.8, city: 'New York', date: '2011-10-16' },
{ value: 61.6, city: 'San Francisco', date: '2011-10-16' },
{ value: 70.6, city: 'Austin', date: '2011-10-16' },
{ value: 62.8, city: 'New York', date: '2011-10-17' },
{ value: 61.1, city: 'San Francisco', date: '2011-10-17' },
{ value: 71.1, city: 'Austin', date: '2011-10-17' },
{ value: 60.8, city: 'New York', date: '2011-10-18' },
{ value: 59.2, city: 'San Francisco', date: '2011-10-18' },
{ value: 70, city: 'Austin', date: '2011-10-18' },
{ value: 62.1, city: 'New York', date: '2011-10-19' },
{ value: 58.9, city: 'San Francisco', date: '2011-10-19' },
{ value: 61.6, city: 'Austin', date: '2011-10-19' },
{ value: 65.1, city: 'New York', date: '2011-10-20' },
{ value: 57.2, city: 'San Francisco', date: '2011-10-20' },
{ value: 57.4, city: 'Austin', date: '2011-10-20' },
{ value: 55.6, city: 'New York', date: '2011-10-21' },
{ value: 56.4, city: 'San Francisco', date: '2011-10-21' },
{ value: 64.3, city: 'Austin', date: '2011-10-21' },
{ value: 54.4, city: 'New York', date: '2011-10-22' },
{ value: 60.7, city: 'San Francisco', date: '2011-10-22' },
{ value: 72.4, city: 'Austin', date: '2011-10-22' },
{ value: 54.4, city: 'New York', date: '2011-10-23' },
{ value: 65.1, city: 'San Francisco', date: '2011-10-23' },
{ value: 72.4, city: 'Austin', date: '2011-10-23' },
{ value: 54.8, city: 'New York', date: '2011-10-24' },
{ value: 60.9, city: 'San Francisco', date: '2011-10-24' },
{ value: 72.5, city: 'Austin', date: '2011-10-24' },
{ value: 57.9, city: 'New York', date: '2011-10-25' },
{ value: 56.1, city: 'San Francisco', date: '2011-10-25' },
{ value: 72.7, city: 'Austin', date: '2011-10-25' },
{ value: 54.6, city: 'New York', date: '2011-10-26' },
{ value: 54.6, city: 'San Francisco', date: '2011-10-26' },
{ value: 73.4, city: 'Austin', date: '2011-10-26' },
{ value: 54.4, city: 'New York', date: '2011-10-27' },
{ value: 56.1, city: 'San Francisco', date: '2011-10-27' },
{ value: 70.7, city: 'Austin', date: '2011-10-27' },
{ value: 42.5, city: 'New York', date: '2011-10-28' },
{ value: 58.1, city: 'San Francisco', date: '2011-10-28' },
{ value: 56.8, city: 'Austin', date: '2011-10-28' },
{ value: 40.9, city: 'New York', date: '2011-10-29' },
{ value: 57.5, city: 'San Francisco', date: '2011-10-29' },
{ value: 51, city: 'Austin', date: '2011-10-29' },
{ value: 38.6, city: 'New York', date: '2011-10-30' },
{ value: 57.7, city: 'San Francisco', date: '2011-10-30' },
{ value: 54.9, city: 'Austin', date: '2011-10-30' },
{ value: 44.2, city: 'New York', date: '2011-10-31' },
{ value: 55.1, city: 'San Francisco', date: '2011-10-31' },
{ value: 58.8, city: 'Austin', date: '2011-10-31' },
{ value: 49.6, city: 'New York', date: '2011-11-01' },
{ value: 57.9, city: 'San Francisco', date: '2011-11-01' },
{ value: 62.6, city: 'Austin', date: '2011-11-01' },
{ value: 47.2, city: 'New York', date: '2011-11-02' },
{ value: 64.6, city: 'San Francisco', date: '2011-11-02' },
{ value: 71, city: 'Austin', date: '2011-11-02' },
{ value: 50.1, city: 'New York', date: '2011-11-03' },
];
const chart = new F2.Chart({
id: 'myChart',
width: 600,
height: 300,
pixelRatio: window.devicePixelRatio,
plugins: Plugin,
// animate: false
});
chart.source(data, {
date: {
range: [0, 1],
type: 'timeCat',
mask: 'MM-DD',
},
value: {
tickCount: 5,
},
});
chart.legend(false);
chart.axis('date', {
label(text, index, total) {
const textCfg = {
top: false,
};
if (index === 0) {
textCfg.textAlign = 'left';
}
if (index === total - 1) {
textCfg.textAlign = 'right';
}
return textCfg;
},
line: {
top: true,
},
});
chart.axis('value', {
label: {
top: true,
},
grid: {
top: true,
},
});
chart
.line()
.position('date*value')
.color('city');
chart.render();
setTimeout(function() {
// changeWidth(2000, chart);
chart.changeSize(2000);
console.log(chart.get('canvas'));
}, 3000);
</script>
</body>
</html>