ADE XL: Problems using ocean script results after parametric analysis...

Hello all,

I've setup a transient analysis and use some ocean scripts to perform some calculations. If I sweep a global variable the corresponding ocean scripts get evaluated correctly and their values are plotted correctly versus the swept parameter.

Now if I want to use the results of the parametric analysis to perform some more calculations after the simulation has finished (e.g. derivative some results to find their gains etc.) the ocean scripts don't evaluate correctly if I want to use them in a calculator expression.

Actually, I try to get the time where the first intersection of two waveform occurs. To do that I use the drGetWaveform and drGetElem functions. This works fine if the expression gets evaluated on a single waveform but fails as soon as it gets evaluated after the parametric run has finished (e.g. by using the calcVal() function).
As far as I understood this is due to the fact that after a parametric analysis a VT("/Q") expression returns a waveform family instead of a single one. Consequently, it would need to be handled differently in my ocean scripts similar as presented in http://www.designers-guide.org/Forum/YaBB.pl?num=1262205969 but at the end I would need to build up a waveform (or something equivalent) to be able to calculate the derivative, right?

It would be much easier if I could use the values already calculated and shown in the Results browser of the ADE Software suite.

Does anybody have a hint, how to use the results obtained from the Summary tab and use them in a calculator expression. It seems to me that the ADE XL Suite does not allow for post-processing of the data obtained "during" simulations but I might overlook something.

I am using virtuoso version 6.1.4.500.3.

Thanks a lot in advance,

Lukas

ps: Here is the ocean script I use to calculate the delay of a fully differential signal for different biasing currents:


sig1 = clip(VT("/Q") 7.5e-9 12.5e-9 )
sig2 = clip(VT("/_Q") 7.5e-9 12.5e-9 )

sig3 = clip(VT("/Q+1") 7.5e-9 12.5e-9 )
sig4 = clip(VT("/_Q+1") 7.5e-9 12.5e-9 )


vcQ = intersect( sig1 sig2 )

;just process the first intersection point if more occurances
if("other" == symbolToString(type(vcQ)) then
 YVec = drGetWaveformYVec(vcQ)
 XVec = drGetWaveformXVec(vcQ)

 tcQ = drGetElem(XVec 0)
 vcQ = drGetElem(YVec 0))


vcQ1 = intersect( sig3 sig4 )

;just process the first intersection point if more occurances
if("other" == symbolToString(type(vcQ1)) then
 YVec = drGetWaveformYVec(vcQ1)
 XVec = drGetWaveformXVec(vcQ1)

 tcQ1 = drGetElem(XVec 0)
 vcQ1 = drGetElem(YVec 0))


axlResult = tcQ1 - tcQ