2017-06-04 13:32:38 +00:00
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.\" Copyright (C) 2017 Alessandro Menti
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.\"
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.\" This program is free software; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License
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.\" as published by the Free Software Foundation; either version 2
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.\" of the License, or (at your option) any later version.
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.\"
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.\" This program is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public License
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.\" along with this program; if not, write to the Free Software
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.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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.\" Or try here: http://www.fsf.org/copyleft/gpl.html
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.\"
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2017-06-25 20:19:41 +00:00
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.TH FGVIEWER 1 2017-06-25 FlightGear "FlightGear man pages"
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2017-06-04 13:32:38 +00:00
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.SH NAME
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fgviewer \- An alternative FlightGear viewer application
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.SH SYNOPSIS
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\fBfgviewer\fR [\fB\-\-fg\-root\fR \fIrootdir\fR]
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[\fB\-\-fg\-scenery\fR \fIscenerydir\fR] [\fB\-\-config\fR \fIconfigfile\fR]
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[\fB\-\-prop\fR \fIproperty\fR \fIvalue\fR] [\fB\-\-renderer\fR \fIrend\fR]
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[\fB\-\-hla\fR] [\fB\-\-federation\fR \fIfed\fR]
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.SH DESCRIPTION
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.B fgviewer
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is a viewer application that allows you to examine FlightGear scenery and
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objects without starting
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.BR fgfs (1).
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.SH OPTIONS
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.TP
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\fB\-\-fg\-root\fR \fIrootdir\fR
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Set the FlightGear data root directory (\fB$FG_ROOT\fR) to \fIrootdir\fR. If
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this option is not set,
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.B fgviewer
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uses the path specified in the
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.B FG_ROOT
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environment variable or, absent that, the FlightGear data directory chosen at
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the time the program was compiled.
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.TP
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\fB\-\-fg\-scenery\fR \fIscenerydir\fR
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Set the FlightGear scenery directory (\fB$FG_SCENERY\fR) to \fIscenerydir\fR.
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If this option is not set,
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2017-06-25 20:19:41 +00:00
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.B fgviewer
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2017-06-04 13:32:38 +00:00
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uses the path specified in the
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.B FG_SCENERY
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environment variable or, absent that, the
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.B Scenery
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subdirectory inside \fB$FG_ROOT\fR.
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.TP
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\fB\-\-config\fR \fIconfigfile\fR
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Read configuration directives from \fIconfigfile\fR.
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.TP
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\fB\-\-prop\fR \fIproperty\fR \fIvalue\fR
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Set the property named \fIproperty\fR to \fIvalue\fR.
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.TP
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\fB\-\-renderer\fR \fIrend\fR
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Use the renderer named \fIrend\fR to render the scenery. This option is
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currently not supported.
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.TP
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\fB\-\-hla\fR
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Enable HLA federation.
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.TP
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\fB\-\-federation\fR \fIfed\fR
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Enable a custom federation named \fIfed\fR.
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.SH "EXIT STATUS"
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.B fgviewer
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exits with
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.B EXIT_SUCCESS
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on success, with
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.B EXIT_FAILURE
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if the syntax of the command-line arguments is wrong or an error occurs.
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.SH ENVIRONMENT
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.IP "\fBFG_ROOT\fR" 4
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If
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.B FG_ROOT
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is set and
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.B \-\-fg\-root
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is not set, it specifies the root data directory to use.
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.IP "\fBFG_SCENERY\fR" 4
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If
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.B FG_SCENERY
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is set and
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.B \-\-fg\-scenery
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is not set, it specifies the scenery directory to use.
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.SH FILES
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.IP "\fI$FG_ROOT/defaults.xml\fR" 4
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Default preferences file loaded on startup.
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.SH "SEE ALSO"
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.BR fgfs (1)
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