alt Hacker NewsFantasic Hunter, congrats!
I've been looking for a followup to uPlot - Lee who made uPlot is a genius and that tool is so powerful, however I need OffscreenCanvas running charts 100% in worker threads. Can ChartGPU support this?
I started Opus 4.5 rewrite of uPlot to decouple it from DOM reliance, but your project is another level of genius.
I hope there is consideration for running your library 100% in a worker thread ( the data munging pre-chart is very heavy in our case )
Again, congrats!
Thanks! Leon's uPlot is fantastic - definitely an inspiration.
Worker thread support via OffscreenCanvas is a great idea and WebGPU does support it. I haven't tested ChartGPU in a worker context yet, but the architecture should be compatible - we don't rely on DOM for rendering, only for the HTML overlay elements (tooltips, axis labels, legend).
The main work would be: 1. Passing the OffscreenCanvas to the worker 2. Moving the tooltip/label rendering to message-passing or a separate DOM layer
For your use case with heavy data munging, you could also run just the data processing in a worker and pass the processed arrays to ChartGPU on the main thread - that might be a quicker win.
Would you open an issue on GitHub? I'd love to understand your specific workload better. This feels like a v0.2 feature worth prioritizing.