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molaR (version 0.1)

Dental Surface Complexity Measurement Tools

Description

Surface topography calculations of Dirichlet's normal energy, relief index, and orientation patch count for teeth using scans of enamel caps. Importantly, for the relief index and orientation patch count calculations to work, the scanned tooth files must be oriented with the occlusal plane parallel to the x and y axes, and perpendicular to the z axis. The files should also be simplified, and smoothed in some other software prior to uploading into R.

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Version

Install

install.packages('molaR')

Monthly Downloads

262

Version

0.1

License

ACM

Maintainer

James D. Pampush

Last Published

October 29th, 2015

Functions in molaR (0.1)

remove_outliers

Mask outliers on some faces
index_paired_directed_faces

Index of paired faces with directions
patches_per

A function for patches within each face
DNE

Calculate Dirichlet normal energy of a surface
Face_Normals

Function to find Face Normals
RFI

Calculate Boyer's (2008) relief index for a surface
OPCr

Calculate average orientation patch count after several rotations
RFI3d

Plot 3D and 2D areas of a mesh used to calculate relief index
remove_boundary_faces

Remove boundary faces
vertex_to_face_list

function for making a list of faces on each vertex
DNE3d

Plot results of a DNE analysis of a surface
patch_details

Function for gathering patch details for each Orientation patch
compute_energy_per_face

Function will compute the DNE per face.
read.AVIZO.ply

Read mesh data from ply files saved by AVIZO
OPC

Calculate orientation patch count of a surface
clustered_patches

A clustering function
Equal_Vertex_Normals

Important function for re-doing the vertex normals for the DNE calculation.
edge_vertices

Function for finding the edge vertices
ex_tooth1

4149_DU-LP-09_LM1
ex_tooth2

4147_DU-LP-07_LM1
patches_for_each_direction

Function for gathering the patches for each direction
Directional_Bins

This bins the faces into directional categories
face_areas

Function to calculate face areas.
OPC3d

Plot results of OPC analysis of a surface