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 *                                                                       | 
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 * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).              | 
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  | 
 * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).           | 
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< | 
 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).           | 
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 * [4]  Vardeman & Gezelter, in progress (2009).                         | 
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> | 
 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).           | 
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> | 
 * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010). | 
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> | 
 * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011). | 
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 */ | 
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  | 
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#ifndef CONSTRAINTS_RATTLE_HPP | 
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#include "brains/SimInfo.hpp" | 
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#include "constraints/ConstraintPair.hpp" | 
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#include "io/ConstraintWriter.hpp" | 
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 | 
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namespace OpenMD { | 
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 | 
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  /**  | 
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  class Rattle { | 
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  public: | 
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    enum ConsStatus{ | 
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      consFail = -1,  //Constraint Fail | 
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      consSuccess = 0,  //constrain the pair by moving two elements | 
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      consAlready = 1}; //current pair is already constrained, do not need to move the elements | 
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      consFail = -1,   //Constraint Fail | 
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      consSuccess = 0, //constrain the pair by moving two elements | 
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      consAlready = 1  //current pair is already constrained, do not need to move the elements | 
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    };  | 
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   | 
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    Rattle(SimInfo* info); | 
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    void constraintA(); | 
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    int maxConsIteration_;         | 
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    RealType consTolerance_; | 
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    RealType dt_; | 
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    Snapshot* currentSnapshot_;      | 
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    Snapshot* currentSnapshot_;    | 
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    bool doRattle_; | 
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    std::string constraintOutputFile_; | 
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    ConstraintWriter* constraintWriter_; | 
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    RealType constraintTime_; | 
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    RealType currConstraintTime_; | 
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  }; | 
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– | 
 | 
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} | 
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#endif |