Tool tips with large data set on line chart

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Mike Currie

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Aug 15, 2017, 6:57:31 PM8/15/17
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Looking for ways to improve performance with large data sets with a line chart. Need to have 50,000 ~ 200,000 possibly more data points and once it goes over 20,000 the performance drops off significantly. 

For each data point it creates an element like this : <circle class="dot" r="1.25" fill="#1f77b4" style="fill-opacity: 1e-06; stroke-opacity: 1e-06;" cy="152" cx="2.7857966438401953"></circle>

Anyone know of a way to achieve the same effect with better performance, If I could get a reference to the nearest data point with a mouseover/mousemove event handler that would probably work.

Thanks


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