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.\" Manpage for meshfix.
.\" Contact fangqq@gmail.com to correct errors or typos.
.TH man 7 "30 June 2020" "1.2-alpha" "meshfix man page"
.SH NAME
meshfix \- a surface mesh cleaning and repairing utility
.SH SYNOPSIS
meshfix <file1> [<file2>] [OPTIONS]
.SH DESCRIPTION
Meshfix is a surface mesh repairing and cleaning tool. It was
written by Marco Attene, Mirko Windhoff, Axel Thielscher. The
details regarding this tool can be found in the below paper
M. Attene \- A lightweight approach to repairing digitized polygon meshes.
The Visual Computer, 2010. (c) Springer.
Meshfix processes file1 and saves the result to <file1>_fixed.off.
An optionally passed file2 is merged with the first one.
Accepted input formats are OFF, PLY and STL.
.SH OPTIONS
This program accepts the following input parameters:
.TP
\fB-a <epsilon_angle>
Allowed range: 0 < epsilon_angle < 2, default: 0 (degrees)
.TP
\fB-j
Join 2 biggest components if they overlap, remove the rest.
.TP
\fB-jc
Join the closest pair of components.
.TP
\fB-h\fR|(--help)
Print this help and exit.
.TP
\fB--shells <n>
Only the n biggest shells are kept.
.TP
\fB-o <output>
Set the output filename (without extension).
.TP
\fB-q
Quiet mode, don't write much to stdout.
.TP
\fB-u <steps>
Uniform remeshing of the whole mesh, steps > 0
.TP
\fB--vertices <n>
Constrain number of vertices to n (only with -u)
.TP
\fB--no-clean
Don't clean.
.TP
\fB--smooth <n>
Apply n laplacian smoothing steps.
.TP
\fB-s\fR|(--stl)
Result is saved in STL format instead of OFF.
.TP
\fB-w\fR|(--wrl)
Result is saved in VRML1.0 format instead of OFF.
.TP
\fB--fsmesh <n>
Result is saved in FreeSurfer format instead of OFF.
.TP
\fB--xshift <d>
Shift x-coordinates of vertices by d when saving output.
Only works with --fsmesh; used to deal with small FreeSurfer glitch
.TP
\fB--msh
Result is saved in gmsh format for debugging (including vertex and triangle masks)
.TP
\fB--cut-outer <d>
Remove triangles of 1st that are outside of the 2nd shell.
.TP
\fB--cut-inner <d>
Remove triangles of 1st that are inside of the 2nd shell.
Dilate 2nd by d; Fill holes and keep only 1st afterwards.
.TP
\fB--decouple-inin <d>
Treat 1st file as inner, 2nd file as outer component.
Resolve overlaps by moving inners triangles inwards.
.TP
\fB--decouple-outin <d>
Treat 1st file as outer, 2nd file as inner component.
Resolve overlaps by moving outers triangles inwards.
.TP
\fB--decouple-outout <d>
Treat 1st file as outer, 2nd file as inner component.
Resolve overlaps by moving outers triangles outwards.
Constrain the min distance between the components > d.
.TP
\fB--fineTuneIn <d> <n>
Used to fine-tune the minimal distance between surfaces
A minimal distance d is ensured, and reached in n substeps
When using the surfaces for subsequent volume meshing by gmsh
this step prevent too flat tetrahedra
.TP
\fB--fineTuneOut <d> <n>
Similar to --fineTuneIn, but ensures minimal distance in the other direction
\fB--dilate <d>
Dilate the surface by d. d < 0 means shrinking.
\fB--intersect
If the mesh contains intersections, return value = 1.
\fB--intersect -o fname.msh
If the mesh contains intersections, return value = 1.
In addtion, save mesh with highlighted intersections in Gmsh format
.SH SEE ALSO
cgalmesh(7), cgalsurf(7), cgalsimp2(7), cgalpoly(7), cork(7), jmeshlib(7)
.SH AUTHOR
Marco Attene (attene@ge.imati.cnr.it), Mirko Windhoff, Axel Thielscher and Qianqian Fang (fangqq@gmail.com)
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