-------- Original Message --------
Subject: Re: Measuring curves
Date: Tue, 7 Jul 2009 10:14:53 -0700 (PDT)
From: Dennis E. Slice <[email protected]>
To: [email protected]
References: <[email protected]>
The old Morpheus et al. supports several measurement commands. If you
have digitized your landmarks and curves in tpsDig, you can import the
data into the old Morpheus, export it to a morpheus-format data file and
add the following lines:
arcl "bill arc length" i
dist "bill chord distance" i j
Load and export the data to a matrix. Two columns in the matrix will be
the arclength (of curve i) and the chord distance (between landmarks i
and j). Edit 'i' and 'j' as needed.
Import into R or spreadsheet or ??? and divide.
Best, ds
morphmet wrote:
-------- Original Message --------
Subject: Measuring curves
Date: Tue, 7 Jul 2009 09:41:04 -0700 (PDT)
From: Chelsea Berns <[email protected]>
To: [email protected]
Hello,
I am working on measuring the curvature of bird bills. From digital
images of the bills, I need to calculate the arc:chord ratio. I have
the straight length measurements but thus far have not been able to
obtain the curved linear length of these bills. Are there any
suggestions of software that might help me accomplish this?
Thank you,
Chelsea Berns
Chelsea Berns
PhD Candidate
NSF Fellow
Adams' Morphometrics Lab
Iowa State University
Dept. of EEOB
Ames, IA 50011
--
Dennis E. Slice
Associate Professor
Dept. of Scientific Computing
Florida State University
Dirac Science Library
Tallahassee, FL 32306-4120
-
Guest Professor
Department of Anthropology
University of Vienna
-
Software worth having/learning/using...
Linux (Operating System: Ubuntu, CentOS, openSUSE, etc.)
OpenOffice (Office Suite: http://www.openoffice.org/)
R package (Stats/Graphics environment: http://www.r-project.org/)
Eclipse (Java/C++/etc IDE: http://www.eclipse.org/)
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