温度计，气压表，油量表，指南针，里程表，等等
HTML5 Canvas 计量器绘制工具 Canvas Gauges
Canvas Gauges是一个用来在html5 canvas是绘制各种计量器、计量仪图表的JavaScript工具库。
下面的这里例子，点击仪表图表可以参考源代码，鼠标移到上面可以看到各种一般的动画效果。在手机或平板上，用手指按住它们，动画就会发生。
不需要配置的简单计量器
指南针
animated needle
animated plate
animated needle
animated plate
可灵活配置的仪表图
no-borders
half-gauge ticks horizontal
half-gauge ticks vertical (animated plate)
more custom coloring
线性计量仪器
用法
<!doctype html>
<html>
<head>
<title>Gauges as Components</title>
<script src="gauge.min.js"></script>
</head>
<body>
<!-- Injecting linear gauge -->
<canvas data-type="linear-gauge"
data-width="160"
data-height="600"
data-border-radius="20"
data-borders="0"
data-bar-stroke-width="20"
data-minor-ticks="10"
data-major-ticks="0,10,20,30,40,50,60,70,80,90,100"
data-value="22.3"
data-units="°C"
data-color-value-box-shadow="false"
></canvas>
<!-- Injecting radial gauge -->
<canvas data-type="radial-gauge"
data-width="400"
data-height="400"
data-units="Km/h"
data-title="false"
data-value="0"
data-min-value="0"
data-max-value="220"
data-major-ticks="0,20,40,60,80,100,120,140,160,180,200,220"
data-minor-ticks="2"
data-stroke-ticks="false"
data-highlights='[
{ "from": 0, "to": 50, "color": "rgba(0,255,0,.15)" },
{ "from": 50, "to": 100, "color": "rgba(255,255,0,.15)" },
{ "from": 100, "to": 150, "color": "rgba(255,30,0,.25)" },
{ "from": 150, "to": 200, "color": "rgba(255,0,225,.25)" },
{ "from": 200, "to": 220, "color": "rgba(0,0,255,.25)" }
]'
data-color-plate="#222"
data-color-major-ticks="#f5f5f5"
data-color-minor-ticks="#ddd"
data-color-title="#fff"
data-color-units="#ccc"
data-color-numbers="#eee"
data-color-needle-start="rgba(240, 128, 128, 1)"
data-color-needle-end="rgba(255, 160, 122, .9)"
data-value-box="true"
data-animation-rule="bounce"
data-animation-duration="500"
data-font-value="Led"
data-animated-value="true"
></canvas>
</body>
</html>