QgsFieldCalculatorBase 0 0 689 538 Field calculator Only update selected features Update existing field New field 0 Output field name mOutputFieldNameLineEdit Output field type mOutputFieldTypeComboBox Output field width mOuputFieldWidthSpinBox Width of complete output. For example 123,456 means 6 as field width. 0 5 Precision mOutputFieldPrecisionSpinBox 2 Operators 5 5 + * sqrt sin tan acos ( - / ^ cos asin atan ) to real to int to string length area rownum || Field calculator expression mExpressionTextEdit 0 32 Qt::Horizontal QDialogButtonBox::Cancel|QDialogButtonBox::Help|QDialogButtonBox::Ok 9 0 6 All 0 48 0 48 Fields Qt::AutoText Values mValuesFrame mFieldsListWidget label label_2 mOutputFieldNameLineEdit mOutputFieldTypeComboBox mOuputFieldWidthSpinBox mOutputFieldPrecisionSpinBox mValueListWidget mAllPushButton mPlusPushButton mMultiplyPushButton mSqrtButton mSinButton mTanButton mACosButton mOpenBracketPushButton mMinusPushButton mDividePushButton mExpButton mCosButton mASinButton mATanButton mCloseBracketPushButton mToRealButton mToIntButton mToStringButton mLengthButton mAreaButton mRowNumButton mExpressionTextEdit mButtonBox mButtonBox accepted() QgsFieldCalculatorBase accept() 679 559 157 274 mButtonBox rejected() QgsFieldCalculatorBase reject() 679 559 286 274