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// Gmsh - Copyright (C) 1997-2020 C. Geuzaine, J.-F. Remacle
//
// See the LICENSE.txt file for license information. Please report all
// issues on https://gitlab.onelab.info/gmsh/gmsh/issues.
//
// Contributor(s):
// Boris Sedji
//
#ifndef FUNCHEAVISIDE_H
#define FUNCHEAVISIDE_H
#include "simpleFunction.h"
#include "gmshLevelset.h"
class FuncHeaviside : public simpleFunctionOnElement<double> {
private:
gLevelset *_ls;
public:
FuncHeaviside(gLevelset *ls) : _ls(ls) {}
virtual double operator()(double x, double y, double z) const
{
if(_ls->isInsideDomain(x, y, z))
return 1;
else
return -1;
}
virtual double operator()(double x, double y, double z, MElement *e) const
{
if(_ls->isInsideDomain(x, y, z))
return 1;
else
return -1;
}
virtual void gradient(double x, double y, double z, double &dfdx,
double &dfdy, double &dfdz) const
{
dfdx = dfdy = dfdz = 0.0;
}
virtual void gradient(double x, double y, double z, double &dfdx,
double &dfdy, double &dfdz, MElement *e) const
{
dfdx = dfdy = dfdz = 0.0;
}
};
#endif
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