5 # Example file for `chem':
7 # This originates from Computing Science Technical Report No. 122
8 # CHEM - A Program for Typesetting Chemical Diagrams: User Manual
9 # by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
10 # <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
12 # Copyright (C) 2006-2014 Free Software Foundation, Inc.
14 # This file is part of `chem', which is part of `groff'.
16 # `groff' is free software; you can redistribute it and/or modify it
17 # under the terms of the GNU General Public License (GPL) version 2 as
18 # published by the Free Software Foundation.
20 # `groff' is distributed in the hope that it will be useful, but
21 # WITHOUT ANY WARRANTY; without even the implied warranty of
22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 # General Public License for more details.
25 # You should have received a copy of the GNU General Public License
26 # along with this program. If not, see <http://www.gnu.org/licenses/>.
28 # The GPL2 license text is available in the internet at
29 # <http://www.gnu.org/licenses/gpl-2.0.html>.
31 ########################################################################
34 R1: flatring pointing up put N at 1 put N at 4 double 5,1
35 bond -135 from R1.V4 ; BP
36 "deoxyribose" rjust with .e at BP.w
37 R2: ring6 put N at 2 put N at 4 double 1,2 3,4 5,6 with .V6 at R1.V2
38 pic Conn: R2.V2.ne #because naming is too restricted in pic
39 bond up from R2.V1 ; N
45 R3: ring6 put N at 3 put N at 5 double 1,2
46 bond up from R3.V1 ; CH3
47 bond 120 from R3.V3 ; BP
48 "deoxyribose" ljust with .w at BP.e
49 double bond down from R3.V4 ; O
50 double bond -60 from R3.V6 ; O
51 bond -120 from R3.V5 ; H
52 ] with .O at P.H + (.3,.3)
53 bond from Q.O.sw to P.H.ne dotted
54 bond from Q.H.sw to P.Conn dotted
56 ########################################################################