comp.lang.idl-pvwave archive: archive » Re: registering images, shift(/nowrap)

Home » Public Forums » archive » Re: registering images, shift(/nowrap)

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

Re: registering images, shift(/nowrap) [message #32775]

Mon, 11 November 2002 06:25

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning (david@dfanning.com) writes:

> I should think something like this would work:

Well, *something* like that. More like this, I guess. :-(

FUNCTION ZEROSHIFT, image, n1, n2
if n_elements(image) eq 0 then image = dist(30)
s = size(image, /dimensions)
if n_elements(n1) eq 0 then n1 = s[0]/2
if n_elements(n2) eq 0 then n2 = 0
retvalue = shift(image, n1, n2)
retvalue[0:(0 > (n1-1) < (s[0]-1)), *] = 0
retvalue[*, 0:(0 > (n2-1) < (s[1]-1))] = 0
RETURN, retvalue
END

Cheers,

David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

Report message to a moderator

[Message index]

		Re: registering images, shift(/nowrap) By: David Fanning on Mon, 11 November 2002 06:25
		Re: registering images, shift(/nowrap) By: David Fanning on Mon, 11 November 2002 06:18

Previous Topic:	Re: Labels on upper x-axis
Next Topic:	Convolution, IDL & Numerical Recipes

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Apr 13 16:01:45 PDT 2026

Total time taken to generate the page: 0.03017 seconds