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.TH GTSINSIDE 1 "2012-08-08" "0.1" "text and X11 processing"
.SH NAME
gtsinside \- Test whether points are inside a closed surface
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.\" This file is part of pyFormex 0.9.1  (Tue Oct 15 21:05:25 CEST 2013)
.\" pyFormex is a tool for generating, manipulating and transforming 3D
.\" geometrical models by sequences of mathematical operations.
.\" Home page: http://pyformex.org
.\" Project page:  http://savannah.nongnu.org/projects/pyformex/
.\" Copyright 2004-2013 (C) Benedict Verhegghe (benedict.verhegghe@ugent.be)
.\" Distributed under the GNU General Public License version 3 or later.
.\" 
.\" This program is free software: you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
.\" the Free Software Foundation, either version 3 of the License, or
.\" (at your option) any later version.
.\" 
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\" GNU General Public License for more details.
.\" 
.\" You should have received a copy of the GNU General Public License
.\" along with this program.  If not, see http://www.gnu.org/licenses/.
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.SH SYNOPSIS
.sp
gtsinside [OPTION ...] SURFACE POINTS
.SH DESCRIPTION
.sp
Test whether points are inside a closed surface.
.sp
SURFACE is the a file representing a closed manifold surface in GTS format.
POINTS is a text file where each line contains the three coordinates of a point, separated with blanks. This program uses the GTS library to test which of the points are inside the surface. It outputs a list of integer numbers to stdout.
The numbers represent the line numbers in POINTS corresponding to the points inside the surface.
.sp
Due to rounding errors in the floating point computations, this command may report spurious false positives or negatives. It is mainly primarily intended for being used through pyFormex. pyFormex will apply the test three times in different coordinate directions, and report the results that have occurred at least twice, making it far more robust.
.SH OPTIONS
.INDENT 0.0
.TP
.B \-v,  \-\-verbose
Print statistics about the surface.
.TP
.B \-h,  \-\-help
Display this help and exit.
.UNINDENT
.SH SEE ALSO
.sp
gtscheck
.SH AUTHOR
.sp
gtsinside was written by Benedict Verhegghe <\fI\%benedict.verhegghe@ugent.be\fP>.
The GTS library was written by Stephane Popinet <\fI\%popinet@users.sourceforge.net\fP>.
.SH AUTHOR
Benedict Verhegghe <benedict.verhegghe@ugent.be>. This manual page was written for the Debian project (and may be used by others).
.SH COPYRIGHT
GPL v3 or higher
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