bool Voxel::operator<=(const Voxel &other) const { return getValue() <= other.getValue(); };
bool Voxel::operator==(const Voxel &other) const { return (getValue() == other.getValue()); };
bool Voxel::operator>(const Voxel &other) const { return getValue() > other.getValue(); };
Voxel::Voxel(const Voxel &other) { setValue(other.getValue()); }