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molaR (version 4.2)

Dental Surface Complexity Measurement Tools

Description

Surface topography calculations of Dirichlet's normal energy, relief index, surface slope, 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

312

Version

4.2

License

ACM

Maintainer

James D. Pampush

Last Published

August 30th, 2016

Functions in molaR (4.2)

DNE3d

Plot results of a DNE analysis of a surface
index_paired_directed_faces

Index of paired faces with directions
Face_Normals

Function to find Face Normals
OPC

Calculate orientation patch count of a surface
OPC_Legend

function for building a legend in OPC plots
molaR_Clean

Clean up problem ply files
face_areas

Function to calculate face areas.
ex_tooth2

4147_DU-LP-07_LM1
OPC3d

Plot results of OPC analysis of a surface
molaR_Batch

Run a batch of molaR analyses
molaR_bgplot

Internal function for making molaR plot legends
read.AVIZO.ply

Read mesh data from ply files saved by AVIZO
patch_details

Function for gathering patch details for each Orientation patch
remove_outliers

Mask outliers on some faces
RFI

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

function for building a legend for RFI
OPCr

Calculate average orientation patch count after several rotations
remove_boundary_faces

Remove boundary faces
patches_for_each_direction

Function for gathering the patches for each direction
patches_per

A function for patches within each face
plyZClip

Function which will clip a plyFile
Slope_Legend

Plotting subfunction for making slope plot legend
Slope

Function to calculate the average slope of a surface
RFI3d

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

function for making a list of faces on each vertex
tr

Trace function
Slope3d

Plot results of a Slope analysis of a surface
compute_energy_per_face

Function will compute the DNE per face.
Equal_Vertex_Normals

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

A clustering function
ex_tooth1

4149_DU-LP-09_LM1
cSize

Centroid Size Function
edge_vertices

Function for finding the edge vertices
DNE

Calculate Dirichlet normal energy of a surface
DNE_Legend

Make legend for DNE3d plot
Directional_Bins

This bins the faces into directional categories