[kepler-dev] Re: SequenceToArray in PN

Stephen Neuendorffer neuendor at eecs.berkeley.edu
Tue Dec 14 09:32:02 PST 2004


This is probably a bug.  The desired behavior is what Xiaowen thinks it 
should be...
could somebody fix this?  It should be simple...

Steve

At 10:44 PM 12/13/2004 -0800, Neil E. Turner wrote:

>I found this in the JavaDocs for IOPort.get(int channelIndex, int
>vectorLength)
>
>"Get an array of tokens from the specified channel. The parameter
>channelIndex specifies the channel and the parameter vectorLength specifies
>the number of valid tokens to get in the returned array. The length of the
>returned array can be greater than the specified vector length, in which
>case, only the first vectorLength elements are guaranteed to be valid."
>
>If you "look inside" the SequenceToArray actor you will see the Java code...
>go to the fire() method.  You will see in the code
>
>         Token[] valueArray = input.get(0, length);
>
>I put a print statement to see the length of 'valueArray'.  It indeed was
>longer than the PortParameter 'arrayLength'.
>
>Neil
>
>
>----- Original Message -----
>From: "xiaowen" <xin2 at llnl.gov>
>To: <ptolemy-hackers at eecs.berkeley.edu>
>Cc: "xiaowen Xin" <xin2 at llnl.gov>; "Kepler-Dev"
><kepler-dev at ecoinformatics.org>
>Sent: Monday, December 13, 2004 8:13 PM
>Subject: SequenceToArray in PN
>
>
> > Hi Everyone,
> >
> >
> > Is the SequenceToArray actor meant to be used in the PN domain?  I've
> > attached a workflow that demonstrates behavior that I don't understand.
> >
> > A SequenceToArray actor has two ports: input and arrayLength.  It
> > should package up arrayLength number of input tokens into an array and
> > send that out along its output port.
> >
> > In the attached workflow, I send 7, then 2 to the arrayLength port.
> > However, the output consists of two array tokens both with length 7.
> >
> > Can someone please explain to me why the second output isn't an array
> > of length 2?
> >
> > I'm using Ptolemy 4.0.1.
> >
> >
> > Thanks in advance!
> > Xiaowen
> >
> >
>
>
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