opc {doolkit}

orientation patch count

Description

Count the number of orientation patches using poly.network.

Usage

opc(mesh, bins = 8, min.size = 3, rotation = 0)

Arguments

mesh

object of class mesh3d

bins

the number of orientation bins to be defined (default set to 8)

min.size

the minimal amount of polygons defining a "patch" (default set to 3)

rotation

if applicable, the number of degrees to which bins are to be rotated. By default the bins start from an angle of pi/2 and rotates clockwise.

Value

A data.frame displaying the number of patches and their size (number of triangles) for each orientation bin. Note: if you want the surface area of each patch, seepoly.network

References

doi:10.1038/nature05433Evans et al. (2007)

See Also

orient

opcr

Examples

#8 bins (default):
opc <- opc(dkmodel$complex)
#8 bins starting from mesial, as in Evans et al. 2007:
opc <- opc(dkmodel$complex, rotation = -(360/16))
#4 bins (mesial, buccal, distal and lingual):
opc <- opc(dkmodel$complex, bins = 4, rotation = -(360/8))