Unable to alter the input data within the LCJS chart

I have been utilizing LightningChart JS to create scrolling line charts. After following an official tutorial by the developers on YouTube, I was able to successfully implement the automatic generated data. Now, I am looking to modify the input to a JSON file containing a list of integers representing their Y values.

In the tutorial, the data plotting was done using another package called XYData. The code snippet below is responsible for generating the automatic data:

createProgressiveTraceGenerator()
    .setNumberOfPoints(100000)
    .generate()
    .setStreamBatchSize(100)
    .setStreamInterval(1000/60)
    .setStreamRepeat(true)  
    .toStream()
    .forEach(dataPoint => {
      series.add(dataPoint)
    })

Delving into the ChartXY documentation, I discovered that the method generate() used by createProgressiveTraceGenerator() returns an object of the DataHost class. This DataHost object has a setData() method which can be utilized to replace the automatic generated data with my JSON file.

However, I am stuck on how to convert my list of dictionaries into a DataHost object for input. Any guidance on this matter would be greatly appreciated!

Answer №1

When using LineSeries, data is accepted in the form of JavaScript objects, which can be thought of as similar to "dictionaries". JSON, or JavaScript Object Notation, makes it simple to input the data without the need for extensive transformations.

For instance,

LineSeries.add([ { x: 0, y: 0 }, { x: 1, y: 1 } ])

Click here for more information.

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