29 lines
674 B
C++
29 lines
674 B
C++
#include "manifold_ellipsoid.h"
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using namespace LAMMPS_NS;
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using namespace user_manifold;
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manifold_ellipsoid::manifold_ellipsoid( LAMMPS *lmp, int /*narg*/, char **/*argv*/ ) : manifold(lmp)
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{}
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double manifold_ellipsoid::g( const double *x )
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{
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const double ai = 1.0 / params[0];
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const double bi = 1.0 / params[1];
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const double ci = 1.0 / params[2];
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return x[0]*x[0]*ai*ai + x[1]*x[1]*bi*bi + x[2]*x[2]*ci*ci - 1.0;
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}
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void manifold_ellipsoid::n( const double *x, double * n )
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{
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const double ai = 1.0 / params[0];
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const double bi = 1.0 / params[1];
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const double ci = 1.0 / params[2];
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n[0] = 2*x[0]*ai*ai;
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n[1] = 2*x[1]*bi*bi;
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n[2] = 2*x[2]*ci*ci;
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}
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