| Re: Slow object graphics when plotting multiple lines [message #92971 is a reply to message #92968] |
Mon, 04 April 2016 08:09   |
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Paul Van Delst[1]
Messages: 1157
Registered: April 2002
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Senior Member |
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Hello,
On 04/04/16 10:48, Yngvar Larsen wrote:
> Another trick, using a single array with lines separated by NaN.
> Thisworks both in direct and function graphics. With these two added, plus
> the new CONNECTIVITY trick, your TEST routine prints this on my machine
> (2012 iMac)
I'm amazed at everyone's ability to discover these things! Wow.
But, I think this need for various "tricks" to speed up basic plotting
functionality is something that the IDL/Harris folks need to fix by
making PLOT(/OVERPLOT) - with additional keywords if necessary - work
similarly, i.e. fast.
Similarly when plotting gobs of satellite data on maps, surfaces,
contours, etc.
The slowness of function graphics when plotting lots and lots of data
makes it unusable for looking at large datasets.
Other, similar, tools don't have these issues. (Yes, I mean matlab).
cheers,
paulv
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