--- /dev/null
+.TH g_hydorder 1 "Mon 4 Apr 2011" "" "GROMACS suite, VERSION 4.5.4-dev-20110404-bc5695c"
+.SH NAME
+g_hydorder
+.B VERSION 4.5.4-dev-20110404-bc5695c
+.SH SYNOPSIS
+\f3g_hydorder\fP
+.BI "\-f" " traj.xtc "
+.BI "\-n" " index.ndx "
+.BI "\-s" " topol.tpr "
+.BI "\-o" " intf.xpm "
+.BI "\-or" " raw.out "
+.BI "\-Spect" " intfspect.out "
+.BI "\-[no]h" ""
+.BI "\-[no]version" ""
+.BI "\-nice" " int "
+.BI "\-b" " time "
+.BI "\-e" " time "
+.BI "\-dt" " time "
+.BI "\-[no]w" ""
+.BI "\-d" " enum "
+.BI "\-bw" " real "
+.BI "\-sgang1" " real "
+.BI "\-sgang2" " real "
+.BI "\-tblock" " int "
+.BI "\-nlevel" " int "
+.SH DESCRIPTION
+\&The tetrahedrality order parameters can be determined
+\&around an atom. Both angle an distance order parameters are calculated. See
+\&P.\-L. Chau and A.J. Hardwick, Mol. Phys., 93, (1998), 511\-518.
+\&for more details.
+This application calculates the orderparameter in a 3d\-mesh in the box, and
+\&with 2 phases in the box gives the user the option to define a 2D interface in time
+\&separating the faces by specifying parameters \-sgang1 and \-sgang2 (It is important
+\&to select these judiciously)
+.SH FILES
+.BI "\-f" " traj.xtc"
+.B Input
+ Trajectory: xtc trr trj gro g96 pdb cpt
+
+.BI "\-n" " index.ndx"
+.B Input
+ Index file
+
+.BI "\-s" " topol.tpr"
+.B Input
+ Run input file: tpr tpb tpa
+
+.BI "\-o" " intf.xpm"
+.B Output, Mult.
+ X PixMap compatible matrix file
+
+.BI "\-or" " raw.out"
+.B Output, Opt., Mult.
+ Generic output file
+
+.BI "\-Spect" " intfspect.out"
+.B Output, Opt., Mult.
+ Generic output file
+
+.SH OTHER OPTIONS
+.BI "\-[no]h" "no "
+ Print help info and quit
+
+.BI "\-[no]version" "no "
+ Print version info and quit
+
+.BI "\-nice" " int" " 19"
+ Set the nicelevel
+
+.BI "\-b" " time" " 0 "
+ First frame (ps) to read from trajectory
+
+.BI "\-e" " time" " 0 "
+ Last frame (ps) to read from trajectory
+
+.BI "\-dt" " time" " 0 "
+ Only use frame when t MOD dt = first time (ps)
+
+.BI "\-[no]w" "no "
+ View output \fB .xvg\fR, \fB .xpm\fR, \fB .eps\fR and \fB .pdb\fR files
+
+.BI "\-d" " enum" " z"
+ Direction of the normal on the membrane: \fB z\fR, \fB x\fR or \fB y\fR
+
+.BI "\-bw" " real" " 1 "
+ Binwidth of box mesh
+
+.BI "\-sgang1" " real" " 1 "
+ tetrahedral angle parameter in Phase 1 (bulk)
+
+.BI "\-sgang2" " real" " 1 "
+ tetrahedral angle parameter in Phase 2 (bulk)
+
+.BI "\-tblock" " int" " 1"
+ Number of frames in one time\-block average
+
+.BI "\-nlevel" " int" " 100"
+ Number of Height levels in 2D \- XPixMaps
+
+.SH SEE ALSO
+.BR gromacs(7)
+
+More information about \fBGROMACS\fR is available at <\fIhttp://www.gromacs.org/\fR>.