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Re: how to sort data based on other sorted data [message #57994 is a reply to message #57980]

Thu, 10 January 2008 05:52

JMB
Messages: 13
Registered: January 2008

Junior Member

> I have an input file containing coordinate data (three columns) with a
> couple thousand rows.

Hi Placebo!

What are the minimum and maximum values of your coordinate data?

The idea is to merge your array of coordinates in a single vector that
can be sorted. The merging has to be done in a way that x,y,z info
doesn't mix and can still be extracted after sorting. Like for the
16777216 colors that can be specified by their R,G,B components.

Example:
color=4700000
Blue=fix(color/2.^16)
Green=fix((color mod 2.^16)/2.^8)
Red=fix((color mod 2.^16) mod 2.^8)
Print,Blue,Green,Red

Jerome

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[Message index]

		Re: how to sort data based on other sorted data By: placebo on Thu, 10 January 2008 12:51
		Re: how to sort data based on other sorted data By: pgrigis on Thu, 10 January 2008 11:16
		Re: how to sort data based on other sorted data By: JMB on Thu, 10 January 2008 10:52
		Re: how to sort data based on other sorted data By: JMB on Thu, 10 January 2008 10:47
		Re: how to sort data based on other sorted data By: placebo on Thu, 10 January 2008 10:23
		Re: how to sort data based on other sorted data By: JMB on Thu, 10 January 2008 05:52
		Re: how to sort data based on other sorted data By: Brian Larsen on Wed, 09 January 2008 13:30
		Re: how to sort data based on other sorted data By: wlandsman on Wed, 09 January 2008 13:03
		Re: how to sort data based on other sorted data By: Tom McGlynn on Fri, 11 January 2008 09:53

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