NAME

       cgalsurf - 3D surface mesh extraction from volumetric image

SYNOPSIS

       cgalsurf  input.inr  threshold  x0  y0  z0  r2  angle  surf-size approx maxnode output.off
       <randomseed> <init-size>

DESCRIPTION

       The cgalsurf utility extracts a surface mesh at a specified threshold (level-set)  from  a
       volumetric  image  -  either  in  binary  or  gray-scale  values,  using  the CGAL library
       (http://cgal.org). This utility is adapted based on the 3D surface generation demo in  the
       CGAL package.

       Please   see   https://doc.cgal.org/latest/Surface_mesher/   for   details  regarding  the
       underlying algorithm.

OPTIONS

       This program accepts the following input parameters (all but the last two  parameters  are
       required):

       input.inr
              The input volumetric image in the INR format

       threshold
              A number representing the threshold at which the surface is extracted.

       x0     The bounding sphere center x-coordinate

       y0     The bounding sphere center y-coordinate

       z0     The bounding sphere center y-coordinate

       r2     The bounding sphere's radius squared

       angle  Lower-bound of the angles (in degree) in surface triangles

       surf-size
              Lower-bound of the edge-length (in voxel unit) in surface triangles

       approx Upper-bound  of  the deviation distance (in voxel unit) of the surface triangles to
              the voxelated boundaries

       maxnode
              Upper-bound of the node numbers in the output mesh

       output.off
              Output surface mesh in the OFF format

       randomseed|(optional, default: -1)
              Random number generator seed (large positive integer, -1 to use system clock)

       init-size|(optional)
              The number of nodes in  the  initial  surface  (sampled  on  the  bounding  sphere)
              cgalmesh(7), cgalsimp2(7), cgalpoly(7), cork(7), meshfix(7), jmeshlib(7)

AUTHOR

       Laurent Rineau, Mariette Yvinec, and Qianqian Fang (fangqq@gmail.com)