An interactive function to remove landmarks from a 3D
template file.
Usage
editTemplate(template, fixed, n)
Arguments
template
Matrix of template 3D coordinates.
fixed
Number of "fixed" landmark points (non
surface sliding points)
n
Number of points to be removed
Value
Function returns a matrix containing the x,y,z coordinates
of the new template landmarks. Function also writes to
working directory 'template.txt' containing the x,y,z
coordinates of the template
Details
Function edits a 'template.txt' file made by
buildtemplate, which must be in current
working directory. Function overwrites 'template.txt' in
working directory with edited version. Use
read.table("template.txt", header = T).
Selection{ Choosing which landmarks will be
deleted involves landmark selection using a mouse in the
rgl plot window. With a standard 3-button (PC)
buildtemplate uses:
the RIGHT mouse
button (primary) to choose points to be deleted (click-drag
a box around landmark),
the LEFT mouse button
(secondary) is used to rotate mesh,
the mouse
SCROLLER (third/middle) is used to zoom in and out.
NOTE:
Digitizing functions on MACINTOSH computers using a
standard 3-button mice works as specified. Macs using
platform specific single button mice:
press button to rotate 3D mesh,
press button while
pressing CONTROL key to choose points to be deleted
(click-drag a box around landmark),
press button
while pressing OPTION key to zoom in and out.
Mac mouse
settings need adjustment to acquire zooming functions of
the "middle/third" mouse button/scroller. Some instructions
can be found at http://blog.boastr.net/. In addition,
freeware providing "Middle Click" functionality is
available at http://magicprefs.com/ for "magicmice"
now standard on many Macintosh machines. }