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Strip Chart Functionality
posted

I am trying to make a chart that will continuously shift the data to the left and add on new data on the right.  It's a pretty simple design, 6 chart lines, 250 data points each.  I have it working, but each refresh of data takes over a second to accomplish and uses 100% of the CPU.  It specifically on the updateItemAtIndex call (or the replaceItemAtIndex).

Does anyone know a way to do these efficiently?

Thanks,

Jon