Ella Botchevar <ella.botche...@gmail.com> ha scritto:
Hi all - new to using geometric morphometrics software and coming
across some questions- Is it possible to change the scale
(numerical values and units) after landmarks and semilandmarks have
been obtained to change the output without having to re-input all
the landmarks? Please post if additional information is necessary to
properly answer my question - as I said I am a novice using this
software. Many thanks -
I guess that the answer depends on which software/format you are using.
Assuming that you are using the TPS format to store landmark
coordinates (arguably the most used format for 2D landmark
coordinates), these are ASCII files that you can easily modify. You
can, then, change the value in the line starting with "SCALE=".
Depending on how consistent is your scale across specimens and on
knowing the relationship between the old and the new scale, faster
solutions might be possible (changing directly the coordinates) but a
bit more "hands on".
I hope this helps.
Postdoctoral Fellow - Queensland University of Technology - Brisbane,
Honorary Fellow - University of Catania - Catania, Italy
MORPHMET may be accessed via its webpage at http://www.morphometrics.org
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