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root/group/trunk/OOPSE/libmdtools/Molecule.cpp
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Comparing trunk/OOPSE/libmdtools/Molecule.cpp (file contents):
Revision 435 by mmeineke, Fri Mar 28 19:33:37 2003 UTC vs.
Revision 468 by gezelter, Mon Apr 7 16:56:38 2003 UTC

# Line 2 | Line 2
2  
3  
4   #include "Molecule.hpp"
5 + #include "simError.h"
6  
7  
8  
# Line 118 | Line 119 | void Molecule::printMe( void ){
119      myTorsions[i]->printMe();
120    }
121   }
122 +
123 + void Molecule::moveCOM(double delta[3]){
124 +  double x, y, z;
125 +  int i;
126 +
127 +  for(i=0; i<nAtoms; i++) {
128 +    if(myAtoms[i] != NULL ) {
129 +
130 +      x = myAtoms[i]->getX() + delta[0];
131 +      y = myAtoms[i]->getY() + delta[1];
132 +      z = myAtoms[i]->getZ() + delta[2];
133 +
134 +      myAtoms[i]->setX(x);
135 +      myAtoms[i]->setY(y);
136 +      myAtoms[i]->setZ(z);
137 +    }
138 +  }
139 + }
140 +
141 + void Molecule::getCOM( double COM[3] ) {
142 +
143 +  double mass, mtot;
144 +  int i;
145 +
146 +  COM[0] = 0.0;
147 +  COM[1] = 0.0;
148 +  COM[2] = 0.0;
149 +  mtot   = 0.0;
150 +
151 +  for (i=0; i < nAtoms; i++) {
152 +    if (myAtoms[i] != NULL) {
153 +
154 +      mass = myAtoms[i]->getMass();
155 +      mtot   += mass;
156 +      COM[0] += myAtoms[i]->getX() * mass;
157 +      COM[1] += myAtoms[i]->getY() * mass;
158 +      COM[2] += myAtoms[i]->getZ() * mass;
159 +
160 +    }
161 +  }
162 +
163 +  COM[0] /= mtot;
164 +  COM[1] /= mtot;
165 +  COM[2] /= mtot;
166 +
167 + }
168 +
169 + void Molecule::getCOMvel( double mtot, double COMvel[3] ) {
170 +
171 +  double mass;
172 +  int i;
173 +
174 +  COMvel[0] = 0.0;
175 +  COMvel[1] = 0.0;
176 +  COMvel[2] = 0.0;
177 +  mtot   = 0.0;
178 +
179 +  for (i=0; i < nAtoms; i++) {
180 +    if (myAtoms[i] != NULL) {
181 +      
182 +      mass = myAtoms[i]->getMass();
183 +      mtot   += mass;
184 +      COMvel[0] += myAtoms[i]->get_vx() * mass;
185 +      COMvel[1] += myAtoms[i]->get_vy() * mass;
186 +      COMvel[2] += myAtoms[i]->get_vz() * mass;
187 +
188 +    }
189 +  }
190 +
191 +  COMvel[0] /= mtot;
192 +  COMvel[1] /= mtot;
193 +  COMvel[2] /= mtot;
194 +
195 + }

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