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Re: making a checkerboard array? [message #56023 is a reply to message #55935]

Tue, 25 September 2007 14:34

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Tue, 25 Sep 2007 09:27:17 -0700, Mike wrote:

> I'm trying to make a checkerboard mask for an array, but I'm missing
> something that is likely to be obvious to the IDL array masters.

> Can anyone help me fill in the missing rectangles like this?
>
> +++++00000+++++00000+++++00000
> +++++00000+++++00000+++++00000
> +++++00000+++++00000+++++00000
> 00000+++++00000+++++00000+++++
> 00000+++++00000+++++00000+++++
> 00000+++++00000+++++00000+++++
> +++++00000+++++00000+++++00000
> +++++00000+++++00000+++++00000
> +++++00000+++++00000+++++00000
> 00000+++++00000+++++00000+++++
> 00000+++++00000+++++00000+++++
> 00000+++++00000+++++00000+++++
> +++++00000+++++00000+++++00000
> +++++00000+++++00000+++++00000
> +++++00000+++++00000+++++00000
> 00000+++++00000+++++00000+++++
> 00000+++++00000+++++00000+++++
> 00000+++++00000+++++00000+++++

l=lindgen(nx,ny)
l=(l mod (xside*2) lt xside) XOR (l/nx mod (yside*2) ge yside)

JD

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[Message index]

		making a checkerboard array? By: Mike[2] on Tue, 25 September 2007 09:27
		Re: making a checkerboard array? By: David Fanning on Wed, 26 September 2007 10:39
		Re: making a checkerboard array? By: JD Smith on Wed, 26 September 2007 10:27
		Re: making a checkerboard array? By: James Kuyper on Wed, 26 September 2007 10:29
		Re: making a checkerboard array? By: R.G.Stockwell on Wed, 26 September 2007 09:44
		Re: making a checkerboard array? By: edward.s.meinel@aero. on Thu, 27 September 2007 07:54
		Re: making a checkerboard array? By: Allan Whiteford on Wed, 26 September 2007 09:37
		Re: making a checkerboard array? By: David Fanning on Wed, 26 September 2007 08:29
		Re: making a checkerboard array? By: David Fanning on Wed, 26 September 2007 08:28
		Re: making a checkerboard array? By: Bruce Bowler on Wed, 26 September 2007 08:19
		Re: making a checkerboard array? By: Mike[2] on Wed, 26 September 2007 08:02
		Re: making a checkerboard array? By: Mike[2] on Wed, 26 September 2007 07:46
		Re: making a checkerboard array? By: David Fanning on Tue, 25 September 2007 15:59
		Re: making a checkerboard array? By: Jean H. on Tue, 25 September 2007 15:07
		Re: making a checkerboard array? By: David Fanning on Tue, 25 September 2007 14:52
		Re: making a checkerboard array? By: JD Smith on Tue, 25 September 2007 14:34
		Re: making a checkerboard array? By: David Fanning on Tue, 25 September 2007 09:56

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