Re: curve

To: alt-photo-process-l@usask.ca
Subject: Re: curve
From: Loris Medici <mail@loris.medici.name>
Date: Wed, 22 Apr 2009 07:54:38 +0300 (EEST)
Comments: "alt-photo-process mailing list"
Delivered-to: alt-photo-process-l-archive@www.usask.ca
Importance: Normal
In-reply-to: <B2EA29430BC68647B9F00ECF09BAD020E12451D08E@exchsrv02.barrynet.barry.e du>
List-id: alt-photo-process mailing list <alt-photo-process-l@sask.usask.ca>
References: <B2EA29430BC68647B9F00ECF09BAD020E12451D08E@exchsrv02.barrynet.barry.edu>
Reply-to: alt-photo-process-l@usask.ca
User-agent: SquirrelMail/1.4.13

When the curved line falls below the straight line, you do it backwards.
(That is: Change the order of following the points.)

Hope this helps,
Loris.


22 Nisan 2009, Çarşamba, 1:34 am tarihinde, Weber, Scott B yazmış:
> I am getting back into PDN negatives and have started working on a curve
> for van dyke, can someone refresh my memory how to interpret data that
> falls below the straight line on the curve value locator. I remember using
> the pink rectangle to measure the values above the straight line but I
> have some values below the line. How do I use the rectangle to measure
> them? I have attached an example.

References:
- curve
  - From: "Weber, Scott B" <sweber@mail.barry.edu>