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Re: why is using objects so much slower ?
- Subject: Re: why is using objects so much slower ?
- From: "Pavel A. Romashkin" <pavel.romashkin(at)noaa.gov>
- Date: Fri, 06 Apr 2001 09:53:30 -0600
- Newsgroups: comp.lang.idl-pvwave
- Organization: NOAA-CMDL-CIRES
- References: <email@example.com>
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:24428
I think the most important thing to remember is that Objects in IDL is
not the same as Object graphics. I also can say that from the 3
platforms I routinely use IDL on, the HP9000 is the one I dislike the
most. Object graphics are very slow on the terminals, because graphic
accelerators are just not present, and the software rendering is slow. I
did use OG for line plots for one simple reason: too lazy to write DG
substitutes for the existing ROI and ogWindow Pickdata and Select
methods. On a fast personal computer, OG is not much slower that DG.
> because I love object oriented programming, I decided to try the objects in
> IDL too. However, when using the objects to plot some of my stuff, it
> turned out to be soooooo sloooow. Really, I mean a factor of 10 or so, and
> I wasn't doing anything funky. Is this normal behaviour ? I'm actually
> quite disappointed about it that I can not use it this way. I must add that
> IDL on our HP9000 system isn't a speed champion (let alone the awfull
> pseudo-coloring : oops, my program ate all my colors), but at least it was