comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » data inside a circle

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

data inside a circle [message #44357]

Fri, 10 June 2005 14:01

angela
Messages: 7
Registered: June 2005

Junior Member

Hello,
I have a list of x,y coordinates and I am trying to make circles of
different centers and radii and find how many of the data points are
inside in the different circles. Do you happen to know an elegant way
to do that?
I have tried to do that using FOR loops but my data points are about
10,000 and the number of circles are about 160,000, so it takes about
2-3 hours for my program to run. I was wondering if you know of a
faster way to do that.

Thank you,
Angela

Report message to a moderator

[Message index]

		data inside a circle By: angela on Fri, 10 June 2005 14:01
		Re: data inside a circle By: Michael Wallace on Mon, 13 June 2005 17:10
		Re: data inside a circle By: btt on Mon, 20 June 2005 06:18
		Re: data inside a circle By: Michael Wallace on Mon, 13 June 2005 09:20
		Re: data inside a circle By: btt on Tue, 21 June 2005 13:09
		Re: data inside a circle By: James Kuyper on Tue, 21 June 2005 05:01

Previous Topic:	How to calculate the curve area?
Next Topic:	Re: How to calculate the curve area?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 01:43:45 PDT 2025

Total time taken to generate the page: 1.04255 seconds