javascript - Simulate ECG with JS & Canvas -


i trying simulate constant heartbeat js , canvas. have figured of out, problem line starts @ different y position , therefore when try clean path looks little off. have js here, it's 1 modified post.

the answer should either in modifying py coordinate somewhere can't figure out where. or in following line in loop function.

 ctx.clearrect(px,0, scanbarwidth, h);

please let me know if can me this. thanks.

https://jsfiddle.net/tfn66/138/


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