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root/group/trunk/OOPSE-4/src/applications/hydrodynamics/StuntDoubleShape.hpp
Revision: 2611
Committed: Mon Mar 13 22:42:40 2006 UTC (18 years, 6 months ago) by tim
File size: 5295 byte(s)
Log Message:
LangevinDynamics in progress

File Contents

# User Rev Content
1 tim 2597 /*
2     * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3     *
4     * The University of Notre Dame grants you ("Licensee") a
5     * non-exclusive, royalty free, license to use, modify and
6     * redistribute this software in source and binary code form, provided
7     * that the following conditions are met:
8     *
9     * 1. Acknowledgement of the program authors must be made in any
10     * publication of scientific results based in part on use of the
11     * program. An acceptable form of acknowledgement is citation of
12     * the article in which the program was described (Matthew
13     * A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14     * J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15     * Parallel Simulation Engine for Molecular Dynamics,"
16     * J. Comput. Chem. 26, pp. 252-271 (2005))
17     *
18     * 2. Redistributions of source code must retain the above copyright
19     * notice, this list of conditions and the following disclaimer.
20     *
21     * 3. Redistributions in binary form must reproduce the above copyright
22     * notice, this list of conditions and the following disclaimer in the
23     * documentation and/or other materials provided with the
24     * distribution.
25     *
26     * This software is provided "AS IS," without a warranty of any
27     * kind. All express or implied conditions, representations and
28     * warranties, including any implied warranty of merchantability,
29     * fitness for a particular purpose or non-infringement, are hereby
30     * excluded. The University of Notre Dame and its licensors shall not
31     * be liable for any damages suffered by licensee as a result of
32     * using, modifying or distributing the software or its
33     * derivatives. In no event will the University of Notre Dame or its
34     * licensors be liable for any lost revenue, profit or data, or for
35     * direct, indirect, special, consequential, incidental or punitive
36     * damages, however caused and regardless of the theory of liability,
37     * arising out of the use of or inability to use software, even if the
38     * University of Notre Dame has been advised of the possibility of
39     * such damages.
40     */
41    
42     #ifndef APPLICATION_HYDRODYNAMICS_MOLECULESHAPE_HPP
43     #define APPLICATION_HYDRODYNAMICS_MOLECULESHAPE_HPP
44    
45     #include "math/Vector3.hpp"
46     #include "primitives/Molecule.hpp"
47     namespace oopse {
48    
49     /** @class Shape*/
50     class Shape {
51     public:
52     virtual bool isInterior(Vector3d pos) = 0;
53     virtual std::pair<Vector3d, Vector3d> getBox() = 0;
54 tim 2611 virtual bool hasAnalyticalSolution() = 0;
55     //virtual Mat3x3d getTranslationalFriction() = 0;
56     //virtual Mat3x3d getRotationalFriction() = 0 ;
57 tim 2597 };
58    
59     /** @class Spheric */
60     class Spheric : public Shape {
61     public:
62     Spheric(Vector3d origin, double radius);
63     virtual bool isInterior(Vector3d pos);
64     virtual std::pair<Vector3d, Vector3d> getBox();
65 tim 2611 virtual bool hasAnalyticalSolution() {return true;}
66     //virtual Mat3x3d getTranslationalFriction();
67     //virtual Mat3x3d getRotationalFriction();
68    
69 tim 2597 private:
70     Vector3d origin_;
71     double radius_;
72     };
73    
74     /** @class Ellipsoid */
75     class Ellipsoid : public Shape{
76     public:
77     Ellipsoid(Vector3d origin, double radius, double ratio, Mat3x3d rotMat);
78     virtual bool isInterior(Vector3d pos);
79     virtual std::pair<Vector3d, Vector3d> getBox();
80 tim 2611 virtual bool hasAnalyticalSolution() {return true;}
81     //virtual Mat3x3d getTranslationalFriction() {
82     // Mat3x3d Xirr;
83     //}
84    
85     //virtual Mat3x3d getFrictionCoff() {
86    
87     //}
88    
89 tim 2597 private:
90 tim 2611
91    
92     /**
93     * calculate the ratio of friction coeffiction constant between ellipsoid and spheric
94     * with same volume.
95     * @param m
96     * @param n
97     * @note
98     * Reference:
99     *
100     * (1) Victor A. Bloomfield, On-Line Biophysics Textbook, Volume: Separations and Hydrodynamics
101     * Chapter 1,Survey of Biomolecular Hydrodynamics
102     * http://www.biophysics.org/education/vbloomfield.pdf
103     * (2) F. Perrin , J. Phys. Radium, [7] 5, 497-511, 1934
104     * (3) F. Perrin, J. Phys. Radium, [7] 7, 1-11, 1936
105     */
106     void calcFrictionRatio(double m, double n, double& Ft, double& Frm, double& Frn) {
107     double q = n/m;
108     if (q > 1.0) {//prolate
109     Ft = sqrt(1-q*q)/(pow(q, 2.0/3.0)*log((1 + sqrt(1-q*q))/q));
110     Frm = 4*(1-q*q)/(3*(2 - 2*pow(q, 4.0/3.0)/Ft)); //not sure
111     Frn = 4*(1-q*q*q*q) /(3*q*q*(2*pow(q, -2.0/3.0)*(2-q*q)/Ft-2));
112     } else {//oblate
113     Ft = sqrt(1-q*q)/(pow(q, 2.0/3.0)*atan(sqrt(q*q-1)));
114     Frm = 4*(1-q*q)/(3*(2 - 2*pow(q, 4.0/3.0)/Ft)); //not sure
115     Frn = 4*(1-q*q*q*q) /(3*q*q*(2*pow(q, -2.0/3.0)*(2-q*q)/Ft-2));
116     }
117     }
118 tim 2597 Vector3d origin_;
119     double a_;
120     double b_;
121     Mat3x3d rotMat_;
122     };
123    
124     /** @class StuntDoubleShape */
125     class StuntDoubleShape {
126     public:
127     StuntDoubleShape(StuntDouble* sd);
128     ~StuntDoubleShape();
129 tim 2611 bool hasAnalyticalSolution();
130 tim 2597 std::pair<Vector3d, Vector3d> getBox();
131     bool isInterior(Vector3d pos);
132     private:
133     Shape* createShape(Atom* atom);
134     std::vector<Shape*> shapes_;
135     };
136    
137 tim 2611
138     class ShapeBuilder {
139     public:
140    
141     };
142    
143    
144 tim 2597 }
145    
146     #endif

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