comp.lang.idl-pvwave archive: archive » rotating contour lots

Home » Public Forums » archive » rotating contour lots

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

Re: rotating contour lots [message #25926 is a reply to message #25887]

Mon, 30 July 2001 08:51

Pavel A. Romashkin
Messages: 531
Registered: November 2000

Senior Member

Craig Markwardt wrote:

> * It may be easier to rotate the contours afterwards. You would
> extract the contours using the PATH_INFO and PATH_XY keywords to
> the CONTOUR procedure, and then apply a simple rotation
> transformation like:
> c = cos(theta) & s = sin(theta)
> xp = x*c + y*s
> yp = -x*s + y*c

I think I am going to set up a newsgroup filter called "Craig", and
redirect everything Craig writes to a folder "Geom_advice", where I will
look every time I plan to use a coordinate transformation. You know, I
studied all this before (I think) and even had an A+. But it is very
hard when you forget something that you actually never really new :-(

Cheers,
Pavel

Report message to a moderator

[Message index]

		rotating contour lots By: ahw199 on Thu, 26 July 2001 04:05
		Re: rotating contour lots By: Pavel A. Romashkin on Mon, 30 July 2001 08:51
		Re: rotating contour lots By: Craig Markwardt on Thu, 26 July 2001 10:45

Previous Topic:	re: Better outwit CDROMs now or Lloyd will usably locate them beside you.
Next Topic:	PSConfig (or Retiring Announcement)

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 10:07:36 PDT 2025

Total time taken to generate the page: 0.88153 seconds