Re: Linear Distance Measures

[morphmet]

-------- Original Message --------
Subject: Re: Linear Distance Measures
Date: Tue, 13 Oct 2009 07:32:22 -0700 (PDT)
From: Dennis E. Slice <dsl...@morphometrics.org>
To: morphmet@morphometrics.org
References: <4ad48bdb.4050...@morphometrics.org>

I am not looking at the program now, but under the tools menu or button
or some such place there is the option for setting an image scale
factor. You can set that for each image and directly measure on the
image using the measurement tools.

What I would do, though, is set the scaling for the tps file, import it
into morpheus, save it as a morpheus file, add the following line as
needed before the first object in the morpheus file:

DIST "" 'i' 'j'

This is a user measurement command for measuring the distance between
points 'i' and 'j'. Other commands include AREA, PERI, ANGL, all
followed by a quoted label or "" and enough integers to specifiy the
required number of landmarks for the computation.

Then just read in the file and export it to the matrix format. The first
columns will contain your measurements. Or, I think you can do something
like "list measurements" from the command line.

This all refers to the old Windows version of Morpheus et al. I don't
think I have added these computations to the new Java alpha version, yet.

-ds


morphmet wrote:

-------- Original Message --------
Subject:     Linear Distance Measures
Date:     Sat, 10 Oct 2009 02:47:11 -0700 (PDT)
From:     Rachel Binks <binks...@student.uwa.edu.au>
To:     morphmet@morphometrics.org



Hi there,



I’ve already conducted GM analysis using tps software but I need to go
back and get basic measurements (length and width). I believe I can use
the Linear Distance Measurement tool in tpsDig2 but it gives the
measurements in pixels. How do I convert this to a distance measure –
either mm or cm?



OR is there an even easier method? Can I somehow ask the program (or
another program) to simply calculate the distance between the two most
extreme landmarks I’ve already added?



Any help would be much appreciated!

Cheers

Rachel

--
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/)
========================================================



--
Replies will be sent to the list.
For more information visit http://www.morphometrics.org