----- Forwarded message from Carmelo Fruciano <[email protected]> -----
Date: Wed, 27 Feb 2013 03:21:06 -0500
From: Carmelo Fruciano <[email protected]>
Reply-To: Carmelo Fruciano <[email protected]>
Subject: Re: Designating semilandmarks from curves?
To: [email protected]
[email protected] ha scritto:
>
> ----- Forwarded message from "Bissett, Thaddeus Geoffrey" -----
>
> Date: Tue, 26 Feb 2013 11:15:41 -0500
> From: "Bissett, Thaddeus Geoffrey"
> Reply-To: "Bissett, Thaddeus Geoffrey"
> Subject: Designating semilandmarks from curves?
> To: "[email protected]"
>
> Hello all,
>
> I’m (very) slowly making progress learning how to get the most out
> of the various software packages, but having a difficult time
> figuring out how to move from curves digitized in tpsDig2 to
> semi-landmarks.
>
> I have four homologous points on my specimens, and three curves
> resampled to ten, ten, and fifteen points each, respectively. I
> would like to convert these curve points to semi-landmarks rather
> than landmarks, as tpsUtil seems to do.
>
> Can someone help? I seem to be somewhat lost here.
>
> Thank you!
Hi,
one thing that I can think of (never had to do this, though) is
working directly on the TPS file produced with tpsDig2 using a text
editor like Windows notepad (or something more sophisticate). This
should take you very little time as you can modify all the specimens
at the same time...
For each specimen you should find:
- LM=4, you can change this to the final number of points (LM=29 in your case)
- After the four landmark coordinates a declaration "OUTLINES=3" and,
for each outline, a declaration "POINTS=n" (where n in your case is
10, 10 and 15, respectively), you can remove all these declarations
and then your points should be appended with the landmarks
- At that point, in case you want to slide the semilandmarks, you can
create your "sliders" file with your method of choice (tpsUtil or
manual)
I hope this helps.
Best,
Carmelo
--
Carmelo Fruciano
Post-doc - University of Konstanz - Konstanz, Germany
Honorary Fellow - University of Catania - Catania, Italy
e-mail [email protected]
http://www.fruciano.it/research/
----- End forwarded message -----
