comp.lang.idl-pvwave archive: archive » Re: the fastest way to find number of points in sphere(radius r)

Home » Public Forums » archive » Re: the fastest way to find number of points in sphere(radius r)

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: the fastest way to find number of points in sphere(radius r) [message #46415 is a reply to message #46414]

Tue, 22 November 2005 03:33

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

Member

Data-------------------------------------------------------- ---------------
lots of points: X, Y, Z
lots of spheres: XC, YC, ZC (positions of center), R(radius)
------------------------------------------------------------ ------------------

I want to know the number of galaxies inside each sphere without a
loop.(If it is possible)
The faster, the better!

Help me, experts~~!!!

Report message to a moderator

[Message index]

		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 11:16
		Re: the fastest way to find number of points in sphere(radius r) By: MarioIncandenza on Tue, 22 November 2005 10:18
		Re: the fastest way to find number of points in sphere(radius r) By: Haje Korth on Tue, 22 November 2005 08:53
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 08:01
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 07:29
		Re: the fastest way to find number of points in sphere(radius r) By: btt on Tue, 22 November 2005 06:00
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 05:14
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 04:16
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 04:02
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 03:33
		Re: the fastest way to find number of points in sphere(radius r) By: Peter Clinch on Tue, 22 November 2005 01:13
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 01:06
		Re: the fastest way to find number of points in sphere(radius r) By: Peter Clinch on Tue, 22 November 2005 00:31
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 22:23

Previous Topic:	image display with different pixel size in x & y
Next Topic:	Re: 3d space set up and plotting data on maps

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Dec 01 21:10:55 PST 2025

Total time taken to generate the page: 2.55983 seconds