public AreaEval offset(int relFirstRowIx, int relLastRowIx, int relFirstColIx, int relLastColIx) {AreaI area = new OffsetArea(getRow(), getColumn(),relFirstRowIx, relLastRowIx, relFirstColIx, relLastColIx);return new LazyAreaEval(area, _evaluator);}

public override AreaEval Offset(int relFirstRowIx, int relLastRowIx, int relFirstColIx, int relLastColIx){AreaI area = new OffsetArea(Row, Column,relFirstRowIx, relLastRowIx, relFirstColIx, relLastColIx);return new LazyAreaEval(area, _evaluator);}
