Re: [APML] PWPro 3.1 alignment methods

[Alan Voetsch <critter12952@yahoo.com>]

Hi Geoff,

--- astropix@att.net wrote:
>      A good place to start is Jerry's tutorial... See
> http://www.astropix.com/HTML/J_DIGIT/PWALIGN.HTM

Yes, Jerry's aeticle is the basais for my question. I have it printed
and am following the directions. 

 > I can't recall which one is default, but that seems to work best
> *most* of the  time...

It is the Hardy Method.

> I start with a 2 pixel radius... if your points aren't close enough
> to start 
> with, you'll get a message box telling which point(s) can't be
> refined. 

Ok, I'll try that. I've been using the 6 setting. Do you stay with the
2 pixel setting all the way through the alignment process?

>You can 
> add additional points... 1-9, a-z, A-Z... for a total of 61. However,
> the 
> initial 4 points set the Warp/Shear/Scale functions... these first
> ones are 
> critical.

Understood. Have been using 3 or 4 points to begin with. So far, I have
not seen a need to add more.

Your help is appreciated, thanks,
Alan



=====
Alan Voetsch
critter12952@yahoo.com

__________________________________________________
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com
_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo