Mesjokke - Delaunay surface mesh cutting

Introduction

Meshugge is a 3D surface mesh cutting simulation that uses edge-flipping and node removal to create cuts without messing up mesh quality. This program was written for prototyping purposes only. It was written in C++, so it is reasonably fast for small meshes. When used on large meshes, the bottleneck becomes the complete lack of efficient collision detection.

The name mesjokke continues my tradition of choosing nonsensical names for programs. In the unlikely event that you've downloaded this somewhere: the URL for the tarball is http://www.cs.uu.nl/groups/AA/virtual/surgery/mesjokke/mesjokke-0.2.tar.gz.

Here is the obligatory screenshot:

Requirements

This program requires

• GNU C++ (3.x tested)
• OpenGL/Mesa and GLUT

Invocation

Command line options:

-h

option help

-w

read saved scalpel positions.

-d

debug output

-s n

Set mesh size to nxn squares, for squares

-t type

set mesh type.

Mouse:

• Left button translates view, Middle button rotates view, Right button zooms view.
• When control is held, then the middle mouse button controls the lighting
• When shift is held, the scalpel is moved. Buttons select between translate (left button), rotate (middle button), and extend (right button).

  Note that the scalpel starts in a horizontal position. When you make a cut by translating the scalpel, this causes degeneracy problems.

Keys:

w

write scalpel trajectory to disk, to be used with -w.

b

only show boundary edges.

e

toggle showing of edges.

s

toggle showing solid triangles.

r

rerun entire wake file specified with -w.

1

do 1 steps of the wake file.

5

do 5 steps of the wake file.

License (1)

The formal part of the license is below. Informally: I basically couldn't care less about what you do with this software. However, if you use it in any way to write articles in any form, I would greatly appreciate being cited. Relevant citations are:

@InProceedings{nienhuys03:_inter_delaun,
  author = 	 {Han-Wen Nienhuys and A. Frank van der Stappen},

  title = {Interactive cutting in triangulated surfaces, a {Delaunay} approach},
  booktitle =	 {Fifth International Workshop on Algorithmic Foundations of Robotics},
  pages =	 {?},
series ={ Advanced Robotics},

  year =	 2003,
  organization = {Springer Verlag}
}

@PhdThesis{nienhuys03:_cuttin,
  author = 	 {Han-Wen Nienhuys},
  title = 	 {Cutting in deformable objects},
  school = 	 {Utrecht University},
  year = 	 2003
}

License (2)

Copyright (c) 2002 Han-Wen Nienhuys and Utrecht University

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.