Question 1

How do I add multiple data lines in Smoothie Charts?

Accepted Answer

Create multiple TimeSeries instances and use the addTimeSeries method on the SmoothieChart object for each, with individual styling options like strokeStyle, as shown in the interactive builder examples. This allows plotting several streams on the same canvas.

Question 2

Smoothie Charts or Chart.js for streaming data?

Accepted Answer

Smoothie Charts is better for pure real-time performance with smooth animations and a smaller footprint, while Chart.js offers more chart types and features but can be heavier and less optimized for continuous updates. Choose based on need for simplicity vs. versatility.

Question 3

Does Smoothie Charts support zooming on charts?

Accepted Answer

No, it does not have built-in zooming or panning features; it's designed for continuous scrolling of live time-series data. For interactive exploration, you'd need to implement custom logic or consider other libraries.

Question 4

How to change the line color in Smoothie Charts?

Accepted Answer

Customize colors by passing strokeStyle in the options when adding a time series, such as 'rgba(255, 0, 0, 1)' for red lines, as demonstrated in the example code. Other style properties like lineWidth can also be adjusted similarly.

Question 5

Can I use Smoothie Charts with React?

Accepted Answer

Yes, integrate it by using refs to access the canvas element and initializing the chart in a useEffect or componentDidMount. Since it's vanilla JavaScript, you'll need to manage lifecycle updates manually to avoid memory leaks.

Question 6

Is Smoothie Charts good for high-frequency data updates?

Accepted Answer

Yes, it's optimized for real-time streaming with efficient canvas rendering, but for extremely high frequencies, monitor performance and consider throttling data points to maintain smoothness, as highlighted in its focus on eliminating jerky updates.

Smoothie Charts

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