iphone: Use Core Plot with large number of data point, or another graphing solution? -


i wanting use core plot before work on implementing it, wondering how performs large number of data points. of data want display on line graph has around 5000 data points.

can core plot show of data on screen without having scroll see more data? load many points quickly? core plot cache larger graphs this?

any comments great.

can core plot show of data on screen without having scroll see more data?

sure, scale of plot space , axes independent of number of data points.

will load many points quickly?

it depends on format you're starting (core plot supports several ways of getting data), device you're using, , how define "fairly quickly". gut feeling loading data won't bottleneck no matter format use--drawing 5000 points will. you'll have try see if meet needs.

does core plot cache larger graphs this?

it caches data in efficient format , there methods add , remove data points without reloading everything. not cache bitmap explicitly. core plot uses core animation handle of graphical elements, takes advantage of caching , optimizations built ca.


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