Heads up

This is a fork of smoothie for micro:bit CreateAI. It's otherwise unsupported by the Foundation. Changes:

• Added support for the lineDash property (charts using a fixed y-axis and linear interpolation only).

Original documentation

Smoothie Charts is a really small charting library designed for live streaming data. I built it to reduce the headaches I was getting from watching charts jerkily updating every second.

See http://smoothiecharts.org

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Getting Started

• Hello world example
• Another example (server CPU usage)
• Another example (responsive layout)
• Tutorial
• Interactive builder
• Just the JavaScript: smoothie.js
• Full distribution (docs and examples): zip or tgz
• Repository: git clone [email protected]:joewalnes/smoothie.git
• Bower: bower install smoothie
• NPM: npm install smoothie
• Yarn: yarn add smoothie
• Introducing Smoothie Charts (blog entry)

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Example

Given a <canvas>:

<canvas id="chart" width="400" height="100"></canvas>

Create a time series and chart with code resembling:

// Create a time series
var series = new TimeSeries();

// Find the canvas
var canvas = document.getElementById('chart');

// Create the chart
var chart = new SmoothieChart();
chart.addTimeSeries(series, { strokeStyle: 'rgba(0, 255, 0, 1)' });
chart.streamTo(canvas, 500);

Then, add data to your time series and it will be displayed on the chart:

// Randomly add a data point every 500ms
setInterval(function() {
    series.append(Date.now(), Math.random() * 10000);
}, 500);

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Questions

For help, use the Smoothie Charts Google Group.

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License (MIT)

• Joe Walnes
• Drew Noakes