4 * This source code is part of
8 * GROningen MAchine for Chemical Simulations
12 * Copyright (c) 1991-2001
13 * BIOSON Research Institute, Dept. of Biophysical Chemistry
14 * University of Groningen, The Netherlands
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34 * Giving Russians Opium May Alter Current Situation
40 static char *SRCID_calch_h = "$Id$";
46 #ident "@(#) calch.h 1.8 2/2/97"
47 #endif /* HAVE_IDENT */
50 extern void calc_h_pos(int nht, rvec xa[], rvec xh[]);
52 * w.f. van gunsteren, groningen, july 1981
54 * translated to c d. van der spoel groningen jun 1993
55 * added option 5 jan 95
57 * subroutine genh (nht,nh,na,d,alfa,x)
59 * genh generates cartesian coordinates for hydrogen atoms
60 * using the coordinates of neighbour atoms.
62 * nht : type of hydrogen attachment (see manual)
63 * xh(1.. ) : atomic positions of the hydrogen atoms that are to be
65 * xa(1..4) : atomic positions of the control atoms i, j and k and l
66 * default bond lengths and angles are defined internally