Web software for visualizing various biomedical waveforms, like EKGs.
You can generate a new waveform by calling a couple of lines of JavaScript. For example, here's how you can use it to simulate an EKG with a wide QRS complex:
<html lang="en">
<body>
<canvas id="wideQRSEKGMonitor" width="400" height="160"></canvas>
<script type="module">
import { DefaultEKGMonitor } from 'https://cdn.jsdelivr.net/gh/eotles/BiomedWaveforms@main/assets/js/index.js';
DefaultEKGMonitor(
{qDuration: 60, rDuration: 70, sDuration: 60},
'wideQRSEKGMonitor'
);
</script>
</body>
</html>
This is actually the code used to generate the wide QRS example from above. It's an HTML wrapper around a very short javascript module.
I'm not very good a javascript, or web development (I actually hate it). So, let's walk through the javascript piece by piece.
First, we need to set up the place we are going to draw the EKG.
<canvas id="wideQRSEKGMonitor" width="400" height="160"></canvas>
This makes an empty HTML canvas named wideQRSEKGMonitor (what a gorgeous variable name).
Second, we need to get the BiomedWaveforms code.
Let's use the JSDeliv approach as its easier than having to download my code and re-serve it with this code.
import { DefaultEKGMonitor } from 'https://cdn.jsdelivr.net/gh/eotles/BiomedWaveforms@main/assets/js/index.js';
This imports the BiomedWaveforms javascript codebase from JSDeliv, simple (although, it took me several attempts to get correct).
Third, we draw the EKG using parameters.
DefaultEKGMonitor(
{qDuration: 60, rDuration: 70, sDuration: 60},
'wideQRSEKGMonitor'
);
The DefaultEKGMonitor is a helper function that does a bunch of stuff for you.
It generates the EKG waveform using the parameters defined inside the curly brackets:{qDuration: 60, rDuration: 70, sDuration: 60} (this give us our QRS wwiiddeenneess).
And it plots the EKG waveform to the wideQRSEKGMonitor canvas we defined above.
That's it.
You should be able to copy-paste that code into a blank file named whateveryouwant.html and your browser should be able to plot a wide QRS EKG for you.