1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/**********************************************************************
OBChiral
-Lists chiral centers in a molecule
Copyright 2005 - Nick England
This file is part of the Open Babel project.
For more information, see <http://openbabel.sourceforge.net/>
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 version 2 of the License.
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.
***********************************************************************/
// used to set import/export for Cygwin DLLs
#ifdef WIN32
#define USING_OBDLL
#endif
#include <openbabel/babelconfig.h>
#include <openbabel/mol.h>
#include <openbabel/obconversion.h>
#include <openbabel/chiral.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
using namespace std;
using namespace OpenBabel;
// PROTOTYPES /////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
//! \brief Compute some properties easy to access from open babel
//
int main(int argc,char **argv)
{
char *program_name= argv[0];
char *FileIn = NULL;
if (argc != 2)
{
cout << "Usage: " << program_name << " <filename>" << endl;
exit(-1);
}
else
{
FileIn = argv[1];
// const char* p = strrchr(FileIn,'.');
}
// Find Input filetype
OBConversion conv;
OBFormat *format = conv.FormatFromExt(FileIn);
if (!format || !conv.SetInAndOutFormats(format, format))
{
cerr << program_name << ": cannot read input format!" << endl;
exit (-1);
}
ifstream ifs;
// Read the file
ifs.open(FileIn);
if (!ifs)
{
cerr << program_name << ": cannot read input file!" << endl;
exit (-1);
}
OBMol mol;
OBAtom *atom;
for (int c=1;;++c) // big for loop (replace with do while?)
{
mol.Clear();
conv.Read(&mol, &ifs);
if (mol.Empty())
break;
cout << "Molecule "<< c << ": " << mol.GetTitle() << endl;
mol.FindChiralCenters(); // labels all chiral atoms
vector<OBAtom*>::iterator i; // iterate over all atoms
for (atom = mol.BeginAtom(i);atom;atom = mol.NextAtom(i))
{
if(!atom->IsChiral())continue; // aborts if atom isn't chiral
cout << "Atom " << atom->GetIdx() << " Is Chiral ";
cout << atom->GetType()<<endl;
OBChiralData* cd = (OBChiralData*)atom->GetData(OBGenericDataType::ChiralData);
if (cd){
vector<unsigned int> x=cd->GetAtom4Refs(input);
size_t n=0;
cout <<"Atom4refs:";
for (n=0;n<x.size();++n)
cout <<" "<<x[n];
cout <<endl;
}
else{cd=new OBChiralData;atom->SetData(cd);}
vector<unsigned int> _output;
unsigned int n;
for(n=1;n<5;++n) _output.push_back(n);
cd->SetAtom4Refs(_output,output);
/* // MOLV3000 uses 1234 unless an H then 123H
if (atom->GetHvyValence()==3)
{
OBAtom *nbr;
int Hid=1000;// max Atom ID +1 should be used here
vector<unsigned int> nbr_atms;
vector<OBBond*>::iterator i;
for (nbr = atom->BeginNbrAtom(i);nbr;nbr = atom->NextNbrAtom(i))
{
if (nbr->IsHydrogen()){Hid=nbr->GetIdx();continue;}
nbr_atms.push_back(nbr->GetIdx());
}
sort(nbr_atms.begin(),nbr_atms.end());
nbr_atms.push_back(Hid);
OBChiralData* cd=(OBChiralData*)atom->GetData(OBGenericDataType::ChiralData);
cd->SetAtom4Refs(nbr_atms,output);
}
else if (atom->GetHvyValence()==4)
{
OBChiralData* cd=(OBChiralData*)atom->GetData(OBGenericDataType::ChiralData);
vector<unsigned int> nbr_atms;
int n;
for(n=1;n<5;++n)nbr_atms.push_back(n);
cd->SetAtom4Refs(nbr_atms,output);
} */
if (!mol.HasNonZeroCoords())
{
cout << "Calcing 0D chirality "<< CorrectChirality(mol,atom)<<endl;
}
else {
cout << "Volume= "<< CalcSignedVolume(mol,atom) << endl;
OBChiralData* cd=(OBChiralData*)atom->GetData(OBGenericDataType::ChiralData);
size_t n;
vector<unsigned int> refs=cd->GetAtom4Refs(output);
cout<<"Atom refs=";
for(n=0;n<refs.size();++n)cout<<" "<<refs[n];
cout<<endl;
}
cout << "Clockwise? " << atom->IsClockwise() << endl;
} // end iterating over atoms
} // end big for loop
return(0);
} // end main
/* obchiral man page*/
/** \page obchiral print molecular chirality information
*
* \n
* \par SYNOPSIS
*
* \b obchiral \<filename\>
*
* \par DESCRIPTION
*
* The obchiral program is a tool to print the chirality information
* for all molecules in a file. It also serves as example code for using the
* Open Babel library (libopenbabel).
*
* \par EXAMPLES
*
* obchiral pyridines.sdf
*
* \par AUTHORS
*
* The obchiral program was contributed by \b Nick \b England.
*
* Open Babel is currently maintained by \b Geoff \b Hutchison, \b Chris \b Morley and \b Michael \b Banck.
*
* For more contributors to Open Babel, see http://openbabel.sourceforge.net/THANKS.shtml
*
* \par COPYRIGHT
* Copyright (C) 1998-2001 by OpenEye Scientific Software, Inc.
* Some portions Copyright (C) 2001-2005 by Geoffrey R. Hutchison \n \n
* 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 version 2 of the License.\n \n
* 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.
*
* \par SEE ALSO
* The web pages for Open Babel can be found at: http://openbabel.sourceforge.net/ \n
**/
|
