RE: [MORPHMET] Problem creating sliding semilandmarks with tps software

[F. James Rohlf]

Not quite the way I intended the tps software to be used. The “curves” feature 
was originally intended for curves to be shown but not actually used in any 
computations. Some now do use it to enter points intended to be semilandmarks – 
perhaps because the lines connecting them give the impression of belonging to 
cures. Appending tps curves to landmarks feature can be used but it is an extra 
complication.

 

In tpsRelw only landmark points are used. If the sliders file is input then the 
indicated landmarks will be used as sliding semilandmarks. 

 

Note: unless a curve is very complex, 40 semilandmarks to probably too many.

 

The tpsUtil program should not, of course, crash. Please provide me more 
details about the version used, the input file, and at what point the program 
crashed. I will then try to fix the problem.

 



F. James Rohlf, Distinguished Professor, Emeritus. Ecology & Evolution

Research Professor, Anthropology

Stony Brook University

 

From: Natalia Siomava [mailto:nat.siom...@gmail.com] 
Sent: Friday, December 22, 2017 12:20 PM
To: MORPHMET 
Subject: [MORPHMET] Problem creating sliding semilandmarks with tps software

 


Hello everybody,

I am trying to add some sliding semilandmarks in my analysis but got stuck with 
defining them.
What I have done:
1) digitized normal LM (13)
2) created a curvature in tpsDig and resampled curve by length with the same 
number of LM (40) for each specimen
3) with tpsUtil “Append tps Curve to landmarks”, I transformed 40 curve points 
into LM.

At this point, the file looks fine: LM=53 (13 real LM + 40 come from the curve 
points). I can also open it in MorphoJ but I all 53 points are shown as LM, not 
semiLM. However, when I use this file in tpsUtil to "Make sliders file", I get 
an error: "Access violation at address "00449136 in module "tpsUtil.exe". Read 
of address 0008." I click several times OK and get a window with "No 
semilandmarks" I get 3 options: "Load Semi.", "Create", and "Cancel". If I 
click "Create", an .NTS file is created but it's not possible to open it with 
MorphoJ. MorphoJ gives as error "The chosen dimentionality and the number of 
data columns in the file are inconsistent".

Could you please explain me what I do wrong? I will appreciate any help and/or 
suggestions.

Thank you,
Best,
Natalia


 

 
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[MORPHMET] Problem creating sliding semilandmarks with tps software

[Natalia Siomava]

Hello everybody,

I am trying to add some sliding semilandmarks in my analysis but got stuck 
with defining them.
What I have done:
1) digitized normal LM (13)
2) created a curvature in tpsDig and resampled curve by length with the 
same number of LM (40) for each specimen
3) with tpsUtil “Append tps Curve to landmarks”, I transformed 40 curve 
points into LM.

At this point, the file looks fine: LM=53 (13 real LM + 40 come from the 
curve points). I can also open it in MorphoJ but I all 53 points are shown 
as LM, not semiLM. However, when I use this file in tpsUtil to "*Make 
sliders file*", I get an error: "*Access violation at address "00449136 in 
module "tpsUtil.exe". Read of address 0008.*" I click several times OK 
and get a window with "*No semilandmarks*" I get 3 options: "*Load Semi.*", 
"*Create*", and "*Cancel*". If I click "*Create*", an .NTS file is created 
but it's not possible to open it with MorphoJ. MorphoJ gives as error "*The 
chosen dimentionality and the number of data columns in the file are 
inconsistent*".

Could you please explain me what I do wrong? I will appreciate any help 
and/or suggestions.

Thank you,
Best,
Natalia


 


 


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