On 03/26/2014 04:43 PM, william.croc...@analog.com wrote: > > Create trace abstracts (with reduced point counts) for the purposes of > drawing. > In the extreme case, if a trace is close enough to a straight line (given > the resolution of the display) the trace could be abstracted as 2 points. > Your cache of abstractions probably needs to depend on your zoom level. > This works for me and I have traces with millions of points. > I also capitalize on the fact that my traces are (thankfully) monotonic > in the X coordinate.
I too have a similar requirements for monotonic data plots. How do you store the full million points data? Do you keep all points in memory so that it is readily available when the user zooms? Syam _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
