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The fastest way to extract some points in million poits data set [message #46763]

Tue, 20 December 2005 05:24

snfinder@naver.com
Messages: 35
Registered: August 2005

Member

HI~ ALL^^,

I usually use where function on a lot of situations.
It gives me easily the indices of array that I want among data set.

BUT, it is a little slow I think.

When I use a where function,
in my computer, if data have one million points it takes 0.01
sec(order).
It makes me depressed because I have to do that step so many times.

Is there a faster method to extract the points which satisfy some
condition
in points data set(3D)?
I need the indices of points that satisfy specified conditions.
(For example, specified conditions: inside the particular cube, inside
the sphere or etc.)

The faster, the better!!!

I'm look forward to see your comment.

Thanks you who see this article.

PARK

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