private static Ptg CreateDeletedRef(Ptg ptg)
{
if (ptg is RefPtg)
{
return new RefErrorPtg();
}
if (ptg is Ref3DPtg)
{
Ref3DPtg rptg = (Ref3DPtg)ptg;
return new DeletedRef3DPtg(rptg.ExternSheetIndex);
}
if (ptg is AreaPtg)
{
return new AreaErrPtg();
}
if (ptg is Area3DPtg)
{
Area3DPtg area3DPtg = (Area3DPtg)ptg;
return new DeletedArea3DPtg(area3DPtg.ExternSheetIndex);
}
throw new ArgumentException("Unexpected ref ptg class (" + ptg.GetType().Name + ")");
}
private static Double ConvertArrayNumber(Ptg ptg, bool isPositive)
{
double value;
if (ptg is IntPtg)
{
value = ((IntPtg)ptg).Value;
}
else if (ptg is NumberPtg)
{
value = ((NumberPtg)ptg).Value;
}
else
{
throw new Exception("Unexpected ptg (" + ptg.GetType().Name + ")");
}
if (!isPositive)
{
value = -value;
}
return value;
}