| 1 | /********************************************************************** | 
| 2 | Copyright (C) 1998-2001 by OpenEye Scientific Software, Inc. | 
| 3 | Some portions Copyright (C) 2001-2005 by Geoffrey R. Hutchison | 
| 4 | Some portions Copyright (C) 2004 by Chris Morley | 
| 5 |  | 
| 6 | This program is free software; you can redistribute it and/or modify | 
| 7 | it under the terms of the GNU General Public License as published by | 
| 8 | the Free Software Foundation version 2 of the License. | 
| 9 |  | 
| 10 | This program is distributed in the hope that it will be useful, | 
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
| 13 | GNU General Public License for more details. | 
| 14 | ***********************************************************************/ | 
| 15 |  | 
| 16 | /* contributed by Walter Scott (wscott@igc.phys.chem.ethz.ch) | 
| 17 |  | 
| 18 | (Actually the routine was copied from write_xyz and and write_pdb and | 
| 19 | then modified...) | 
| 20 |  | 
| 21 | This is a small routine to write a GROMOS96 formatted | 
| 22 | "position coordinate block" (POSITION) or a | 
| 23 | "reduced position coordinate block" (POSITIONRED) | 
| 24 | The former has name information (atom and residue names) while | 
| 25 | the latter only has coordinates. | 
| 26 | This version does not support the writing of binary | 
| 27 | GROMOS files. | 
| 28 |  | 
| 29 | NOTE 1: the actual formats used in writing out the coordinates | 
| 30 | do not matter, as GROMOS96 uses free formatted reads. | 
| 31 | Each line may not be longer than 80 characters. | 
| 32 |  | 
| 33 | (Note, however, in the POSITION block, the first 24 (twenty four) | 
| 34 | character on each line are ignored when the line is read in by GROMOS) | 
| 35 | Comments lines, beginning with hash (#) may occur within a block and are | 
| 36 | used as delimiters for easier reading. | 
| 37 |  | 
| 38 | NOTE 2: Many programs specify the units of the coordinates (e.g. Angstrom). | 
| 39 | GROMOS96 does NOT, as all physical constants, from K_B to EPS are | 
| 40 | NOT hardwired into the code, but specified by the user. | 
| 41 | This allows some (mostly Americans) to use GROMOS96 in KCal and | 
| 42 | Angstrom and the rest of us to use kJoule and nm. | 
| 43 | It also makes it easy to use reduced units. | 
| 44 |  | 
| 45 | We get around this by supplying a routine, wr_sco_gr96, which | 
| 46 | will scale the coordinates by a factor before writing. | 
| 47 | This routine is then called with the factor set to 1.0 in | 
| 48 | write_gr96A, or to 0.1 in write_gr96N depending on the users choice. | 
| 49 | Thus, we always assume that we have read coordinates in Angstrom. | 
| 50 | *** But now handled by a command line option in new framework. | 
| 51 | */ | 
| 52 |  | 
| 53 | #ifndef OB_GROMOS96FORMAT_HPP | 
| 54 | #define OB_GROMOS96FORMAT_HPP | 
| 55 |  | 
| 56 | #include "mol.hpp" | 
| 57 | #include "obconversion.hpp" | 
| 58 |  | 
| 59 | using namespace std; | 
| 60 | namespace OpenBabel | 
| 61 | { | 
| 62 |  | 
| 63 | class GROMOS96Format : public OBFormat | 
| 64 | { | 
| 65 | public: | 
| 66 | //Register this format type ID | 
| 67 | GROMOS96Format() | 
| 68 | { | 
| 69 | OBConversion::RegisterFormat("gr96",this); | 
| 70 | } | 
| 71 |  | 
| 72 | virtual const char* Description() //required | 
| 73 | { | 
| 74 | return | 
| 75 | "GROMOS96 format\n \ | 
| 76 | Write Options e.g. -xn\n\ | 
| 77 | n output nm (not Angstroms)\n"; | 
| 78 | }; | 
| 79 |  | 
| 80 | virtual const char* SpecificationURL() | 
| 81 | { | 
| 82 | return ""; | 
| 83 | }; //optional | 
| 84 |  | 
| 85 | //Flags() can return be any the following combined by | or be omitted if none apply | 
| 86 | // NOTREADABLE  READONEONLY  NOTWRITABLE  WRITEONEONLY | 
| 87 | virtual unsigned int Flags() | 
| 88 | { | 
| 89 | return NOTREADABLE | WRITEONEONLY; | 
| 90 | }; | 
| 91 |  | 
| 92 | //////////////////////////////////////////////////// | 
| 93 | /// The "API" interface functions | 
| 94 | virtual bool WriteMolecule(OBBase* pOb, OBConversion* pConv); | 
| 95 |  | 
| 96 | //////////////////////////////////////////////////// | 
| 97 | /// The "Convert" interface functions | 
| 98 | virtual bool WriteChemObject(OBConversion* pConv) | 
| 99 | { | 
| 100 | //Retrieve the target OBMol | 
| 101 | OBBase* pOb = pConv->GetChemObject(); | 
| 102 | OBMol* pmol = dynamic_cast<OBMol*> (pOb); | 
| 103 | bool ret=false; | 
| 104 | if(pmol) | 
| 105 | ret=WriteMolecule(pmol,pConv); | 
| 106 |  | 
| 107 | std::string auditMsg = "OpenBabel::Write molecule "; | 
| 108 | std::string description(Description()); | 
| 109 | auditMsg += description.substr( 0, description.find('\n') ); | 
| 110 | obErrorLog.ThrowError(__FUNCTION__, | 
| 111 | auditMsg, | 
| 112 | obAuditMsg); | 
| 113 |  | 
| 114 | delete pOb; | 
| 115 | return ret; | 
| 116 | }; | 
| 117 | }; | 
| 118 | } | 
| 119 | #endif |