I had the same problem long ago. I wound up writing a post-digitizing
BASIC routine that would read the several points I digitized on each
line, fit straight lines to each side, project them to the
intersection, and then calculate the angle.
Your friendly math prof down the hall could be very helpful with the
necessary formulae.
At 06:50 AM 1/15/2004, you wrote:
>Hi All,
>Sender: [EMAIL PROTECTED]
>Precedence: bulk
>Reply-To: [EMAIL PROTECTED]
>
>I am looking for software that can measure the angle
>between two lines WITHOUT having to identify the
>vertex of the angle. Many of the angles I am
>interested in are very small and I cannot plot the
>vertex within the borders of the image. I have looked
>at SigmaScan and ImageJ (from the NIH) and I believe
>these programs both require the user to plot the
>vertex.
>
>Any suggestions?
>
>Thanks,
>Erin Leslie
>[EMAIL PROTECTED]
Scott Brande Ph.D. \./
Dept. of Chemistry - CH 289 .0+0.
901-14th Street South /\|=|+|=|/\
UAB /\|==| + |==|/\
Birmingham, AL 35294 USA /d|==| + |==|P\
Tel: (205) 934-8280 /\ d|=|+|=|P /\
Fax: (205) 934-2543 |=|=|
Y
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