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manifold_ellipsoid.cpp
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Thu, Jul 18, 10:45
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Sat, Jul 20, 10:45 (2 d)
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rLAMMPS lammps
manifold_ellipsoid.cpp
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#include "manifold_ellipsoid.h"
using namespace LAMMPS_NS;
using namespace user_manifold;
manifold_ellipsoid::manifold_ellipsoid( LAMMPS *lmp, int narg, char **argv ) : manifold(lmp)
{}
double manifold_ellipsoid::g( const double *x )
{
const double ai = 1.0 / params[0];
const double bi = 1.0 / params[1];
const double ci = 1.0 / params[2];
return x[0]*x[0]*ai*ai + x[1]*x[1]*bi*bi + x[2]*x[2]*ci*ci - 1.0;
}
void manifold_ellipsoid::n( const double *x, double * n )
{
const double ai = 1.0 / params[0];
const double bi = 1.0 / params[1];
const double ci = 1.0 / params[2];
n[0] = 2*x[0]*ai*ai;
n[1] = 2*x[1]*bi*bi;
n[2] = 2*x[2]*ci*ci;
}
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