CellFilter CellFilter::intersection(const CellFilter& other) const
{
if (isNull() || other.isNull())
{
CellFilter rtn;
return rtn;
}
else if (isKnownDisjointWith(other) || other.isKnownDisjointWith(*this))
{
CellFilter rtn;
return rtn;
}
else if (isKnownSubsetOf(other))
{
return *this;
}
else if (other.isKnownSubsetOf(*this))
{
return other;
}
else if (*this==other)
{
return *this;
}
else
{
CellFilter rtn
= new BinaryCellFilter(*this, other, BinaryCellFilter::Intersection);
other.registerSubset(rtn);
this->registerSubset(rtn);
return rtn;
}
}
CellFilter CellFilter::operator+(const CellFilter& other) const
{
if (isNull())
{
return other;
}
else if (other.isNull())
{
return *this;
}
else
{
CellFilter rtn
= new BinaryCellFilter(*this, other, BinaryCellFilter::Union);
rtn.registerSubset(*this);
rtn.registerSubset(other);
return rtn;
}
}
