comp.lang.idl-pvwave archive: archive » Re: Repost of Vertex question...

Home » Public Forums » archive » Re: Repost of Vertex question...

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

Re: Repost of Vertex question... [message #25617 is a reply to message #25531]

Fri, 29 June 2001 07:24

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Struan Gray <struan.gray@sljus.lu.se> writes:

> Craig Markwardt, craigmnet@cow.physics.wisc.edu writes:
>> Brian Koss <bakoss@rainbow.uchicago.edu> writes:
>>>
>>> I have images of polygons connected edge to edge in a
>>> quasiperiodic array, like the one I have attached to this
>>> message... The images are black and white and the edges of
>>> the polygons are distinguisable because they are straight
>>> lines. I would love to be able to use IDL to find the
>>> vertices in this image.
>>
>> Cute. Somehow I don't think this is a program that
>> someone on the newsgroup can knock out in ten minutes.
>
>
> Oh. I don't know.
>
> A quasicrystal will have a limited number of vertex
> orientations, which you can pick out by hand. Simply cut
> out one of each type of vertex into it's own sub-image, do a
> cross correlation between that and the whole image to find
> where that type of vertex occurs, and add up the resulting
> lists for each vertex type.
...

Cool ideas!

Craig

--
------------------------------------------------------------ --------------
Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
------------------------------------------------------------ --------------

Report message to a moderator

[Message index]

		Re: Repost of Vertex question... By: Craig Markwardt on Thu, 28 June 2001 19:46
		Re: Repost of Vertex question... By: david[2] on Thu, 28 June 2001 17:06
		Re: Repost of Vertex question... By: Craig Markwardt on Mon, 02 July 2001 06:33
		Re: Repost of Vertex question... By: Struan Gray on Mon, 02 July 2001 04:05
		Re: Repost of Vertex question... By: Craig Markwardt on Fri, 29 June 2001 07:24
		Re: Repost of Vertex question... By: Struan Gray on Fri, 29 June 2001 07:01
		Re: Repost of Vertex question... By: Richard French on Fri, 29 June 2001 03:55
		Re: Repost of Vertex question... By: Martin Downing on Thu, 12 July 2001 08:41

Previous Topic:	Easy way to do superscripts, greek letters, etc.?
Next Topic:	Re: Easy way to do superscripts, greek letters, etc.?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 17:32:51 PDT 2025

Total time taken to generate the page: 0.00481 seconds