R: Calculate average orientation patch count after several...
OPCr
R Documentation
Calculate average orientation patch count after several rotations
Description
A function that calls OPC iteratively after rotating mesh a selected
number of degrees around the Z-axis following Evans and Jernvall
(2009) Patterns and constraints in carnivoran and rodent dental
complexity and tooth size. J Vert Paleo 29:24A
An object of classes 'mesh3d' and 'shape3d' with
calculated normals
Steps
Number of iterations to run the OPC function on
the mesh
stepSize
Amount of rotation in degrees about the Z-axis
to adjust mesh surface by between each iteration of OPC
minimum_faces
Argument to pass to the OPC function
minimum_area
Argument to pass to the OPC function
Details
The function requires an object created by reading in a ply file
utilizing either the read.ply or the read.AVIZO.ply function, with calculated
normals.
Default number of Steps is 8, with a stepSize of 5.625 degrees, following the
original definition of OPCR.
See the details for the OPC function for more information about preparing mesh
surfaces and the effects of minimum_faces and minimum_area.