double
SheepReadBC::sampleDerivative(double t, double xcoord, double ycoord)
{
int posi;
int posj;
mooseAssert(_x.size() > 0, "Sampling an empty SheepReadBC.");
if(t <= _x[0])
return 0.0;
if(t >= _x[_x.size()-1])
return 0.0;
for(unsigned int i(0); i+1 < _x.size(); ++i)
{
if( t >= _x[i] && t < _x[i+1])
{
posi = i;
break;
}
}
if(posi + 1 == _x.size())
mooseError("Unreachable? sampleDerivative: x="<<xcoord<<" , y="<<ycoord<<" , posi="<<posi<<" !!" );
for(unsigned int j(0); j < _nx* _ny; ++j)
{
if(std::fabs(_px(posi, j) - xcoord) < 0.1 && std::fabs(_py(posi, j) - ycoord) < 0.1)
{
posj = j;
break;
}
}
if(posj + 1 == (_nx*_ny))
mooseError("Unreachable? sampleDerivative: x="<<xcoord<<" , y="<<ycoord<<" , posj="<<posj<<" !!" );
return ( _pv(posi + 1,posj) - _pv(posi,posj) ) / ( _x[posi+1] - _x[posi] );
}
double
SheepReadBC::sampleTime(double t, double xcoord, double ycoord)
{
mooseAssert(_x.size() > 0, "Sampling an empty SheepReadBC.");
int posi;
int posj;
bool found = false;
if(t <= _x[0])
{
posi = 0;
for(unsigned int i(0); i < _nx * _ny; ++i)
if( (std::fabs(_px(posi, i) - xcoord) < 0.1) && (std::fabs(_py(posi, i)- ycoord) < 0.1) )
return _pv(posi, i);
mooseError("Unreachable? Dirichlet: x="<<xcoord<<" , y="<<ycoord<<" , file="<<_y[posi]<<" !!" );
}
else if(t >= _x.back())
{
posi = _x.size()-1;
for(unsigned int i(0); i < _nx * _ny; ++i)
if( (std::fabs(_px(posi, i) - xcoord) < 0.1) && (std::fabs(_py(posi, i)- ycoord) < 0.1) )
return _pv(posi, i);
mooseError("Unreachable? Dirichlet: x="<<xcoord<<" , y="<<ycoord<<" , file="<<_y[posi]<<" !!" );
}
else
{
found = false;
for(unsigned int i(0); i+1 < _x.size(); ++i)
{
if( t >= _x[i] && t < _x[i+1])
{
posi = i;
found = true;
break;
}
}
if( !found )
mooseError("Unreachable? sampleTime: x="<<xcoord<<" , y="<<ycoord<<" , posi="<<posi<<" !!" );
found = false;
for(unsigned int j(0); j < _nx* _ny; ++j)
{
if(std::fabs(_px(posi, j) - xcoord) < 0.1 && std::fabs(_py(posi, j) - ycoord) < 0.1)
{
posj = j;
found = true;
break;
}
}
if( !found )
mooseError("Unreachable? sampleTime: x="<<xcoord<<" , y="<<ycoord<<" , posj="<<posj<<" !!" );
return _pv(posi,posj) + (_pv(posi+1,posj) - _pv(posi,posj)) * (t - _x[posi])/(_x[posi+1] - _x[posi]);
}
return 0;
}
int _ct(int a,int b,int m,int r)
{
m=abs(m);
a=_nt(a,m,r);
b=_pv(b,m,r);
return (a>b)?0:((b-a+m)/m);
}
double
SheepReadBC::integrate(double xcoord, double ycoord)
{
double answer(0);
int posi;
for(unsigned int i(0); i < _nx* _ny; ++i)
{
if(std::fabs(_px(0, i) - xcoord) < 0.1 && std::fabs(_py(0, i) - ycoord) < 0.1)
{
posi = i;
break;
}
}
for(unsigned int i(1); i < _x.size(); ++i)
answer += 0.5*(_pv(i, posi) + _pv(i-1, posi))*(_x[i] - _x[i-1]);
return answer;
}
double
SheepReadBC::sample(double t, double xcoord, double ycoord)
{
mooseAssert(_x.size() > 0, "Sampling an empty SheepReadBC.");
int posi;
int posj;
if(_y.size()>1)
{
for(unsigned int i(0); i <_y.size() - 1; ++i)
{
if(t <= _x[0])
{
posi = 0;
break;
}
else if(t >= _x.back())
{
posi = _x.size()-1;
break;
}
else if(t >= _x[i] && t < _x[i+1])
{
posi = i;
break;
}
}
}
else
{
if(t != _x[0])
{
mooseError("In SheepReadBC::sample : t= "<<t<<" but _x= "<<_x[0]);
}
posi = 0;
}
if(!_has_neumann)
{
for(unsigned int i(0); i < _nx * _ny; ++i)
{
if( (std::fabs(_px(posi, i) - xcoord) < 0.1) && (std::fabs(_py(posi, i)- ycoord) < 0.1) )
{
return _pv(posi, i);
}
}
mooseError("Unreachable? Dirichlet: x="<<xcoord<<" , y="<<ycoord<<" , file="<<_y[posi]<<" !!" );
}
else
{
double value = 0.0;
int count = 0;
for(unsigned int i(0); i < _ny - 1; ++i)
for(unsigned int j(0); j < _nx - 1; ++j)
if( (_px(posi,(i * _nx) + j) < xcoord && _px(posi,(i * _nx) + j + 1) > xcoord) &&
(_py(posi,(i * _nx) + j) < ycoord && _py(posi,(i + 1)*_nx + j) > ycoord))
{
value += _pv(posi, (i * _nx) + j) + _pv(posi, (i * _nx) + j + 1) + _pv(posi, (i + 1) * _nx + j) + _pv(posi, (i + 1) * _nx + j + 1);
value /= 4;
count++;
}
if(count > 0)
value /= count;
else if (count == 0)
mooseError("Unreachable? Neumann: x="<<xcoord<<" , y="<<ycoord<<" , file="<<_y[posi]<< count <<" !!" );
return value;
}
return 0;
}
