191 ScalarField3T, ScalarT> &_field)
193 if (_field.pieces.empty())
195 return _out <<
"undefined";
197 for (
size_t i = 0; i < _field.pieces.size() - 1; ++i)
199 _out << _field.pieces[i].field <<
" if (x, y, z) in "
200 << _field.pieces[i].region <<
"; ";
202 return _out << _field.pieces.back().field
203 <<
" if (x, y, z) in "
204 << _field.pieces.back().region;