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Re: array convol optimizationv slow now [message #67285 is a reply to message #67284]

Mon, 13 July 2009 16:10

newerjazz
Messages: 5
Registered: July 2009

Junior Member

Thanks David,

each particle is a single molecule of protein; we need to visualize
all the proteins to get meaningful interpretation.

i can look at 1/10 of the particles by reducing the field of view but
it's still slow.

do you have any suggestions of getting the x,y locations on the image
w/ an array operation instead of a for loop?

Thanks!

newerjazz

On Jul 13, 3:57 pm, David Fanning <n...@dfanning.com> wrote:
> newerjazz writes:
>> I have an array of [2,100,000,000] corresponding to x, y and
>> 100,000,000 particles. I need to render these particles as gasussian
>> spots at x, y locations
>
>> Currently, I run a for loop through each particle and render each
>> particle in this for loop; it takes forever.
>
> Not to mention it probably takes a display screen
> the size of a city block to render the mess in
> the kind of resolution that allows you to actually
> make something of it.
>
> Have you tried plotting a few hundred (maybe even
> a few thousand) random points to see if you can draw
> the same conclusions you were drawing by plotting all
> the points?
>
> Cheers,
>
> David
>
> --
> David Fanning, Ph.D.
> Coyote's Guide to IDL Programming (www.dfanning.com)
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: array convol optimizationv slow now By: Chris[6] on Mon, 13 July 2009 16:53
		Re: array convol optimizationv slow now By: David Fanning on Mon, 13 July 2009 16:26
		Re: array convol optimizationv slow now By: newerjazz on Mon, 13 July 2009 16:10
		Re: array convol optimizationv slow now By: David Fanning on Mon, 13 July 2009 15:57
		Re: array convol optimizationv slow now By: newerjazz on Tue, 14 July 2009 08:31

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