I am planning to increase my plot performance by playing around with the "level of details" with my subclassed QwtData.

This might not be a Qwt related, but I am just wondering if anybody know about a technique of detail fitering without loosing good information?

example:

If i have 3 millions worth of points in a curve and i decided to show a point on every 100 points. Which of the 100 points that i filtered should i show? Should I show 3 points instead one for min,max and average.

Any insights guys?

baray98