[kepler-dev] [kepler-users] Recipe for using Ptolemy JAI actors?

Mon Mar 15 17:06:00 PDT 2010

I think a module for JAI is a good idea.  Typically, the reason that things
are commented out in the Kepler build is when the required jar libraries can
not be redistributed.  I think that was the case with JAI, which is why it
is conditionally compiled in ptolemy, and not compiled in Kepler.  A quick
read of the license now indicates that it may be possible to redistribute
the binary, but may require indemnification of Sun to do so.  I think if
someone looks into the license and decides it can be redistributed freely
then a module for JAI makes sense.

Matt

On Mon, Mar 15, 2010 at 2:52 PM, David Welker <david.v.welker at gmail.com>wrote:

> Wouldn't it make most sense for us, as the Kepler project, to make a JAI
> module in Kepler? After all, it seems unreasonable to me to have everyday
> developer/users have to do so much hacking with how we use Ptolemy in the
> build to get this to work. Also, such hacking will not be easily shared. It
> seems to me that JAI is important enough to enough scientists as to be worth
> making into a module that can easily shared.
>
> More generally, I would argue that as we get requests like this (for
> functionality in Ptolemy but not normally accessible in Kepler) that we make
> new modules. What are we going to do when we get the next JAI request? Tell
> them to go through all these steps again? We could give them much simpler
> instructions: just use the new JAI module.
>
> Does anyone have any thoughts? Is this a good use case for a new module?
>
>
> Sent from my iPhone
>
>
> On Mar 15, 2010, at 12:23 PM, Christopher Brooks <cxh at eecs.berkeley.edu>
> wrote:
>
>  Hi Tom,
>> The JAI actors require that JAI be installed.
>>
>>
>> http://ptolemy.eecs.berkeley.edu/ptolemyII/ptIIlatest/ptII/doc/install_index.htm
>> says
>> --start--
>> JAI
>> The Java Advanced Imaging (JAI) actors require that JAI, which can be
>> downloaded from
>> http://java.sun.com/javase/technologies/desktop/techoverview.jsp#jai
>>
>> You need not install JAI if you are not planning on using the JAI Actors.
>>
>> Note that you probably want to install the JAI "JDK Install".
>>
>> We verified that jai-1_1_3-lib-windows-i586-jdk.exe works with these
>> actors.
>>
>> Note that under Web Start, we had to install the JAI jar files by hand in
>> c:/Program Files/Java/jre1.6.0_04/lib/ext by copying
>> jai_codec.jar, jai_core.jar, and mlibwrapper_jai.jar from the
>> c:/Program Files/Java/jdk1.6.0_04/lib/ext Web Start users might want to
>> try
>> the "Windows Auto-installation for Java Plug-in"
>> --end--
>>
>> For Mac OS 10.5, see
>> http://chess.eecs.berkeley.edu/ptexternal/wiki/Main/Mac#Ptolemy
>> --start--
>> Java Advance Imaging - No need to install, already in
>> System|Library|Java|Extensions (jai_codec.jar, jai_core.jar) - Note that JAI
>> is not available for the Mac from Sun.
>> --end--
>>
>> The Ptolemy II Windows installer includes a JRE that includes the Windows
>> JAI
>> jar files.
>>
>> The JAI actors have not had much work on them lately, but they seem to
>> be standing the test of time.
>>
>> We are also in the process of developing actors that use OpenGL and
>> OpenCV,
>> but this work is very much a work in progress.
>>
>> _Christopher
>>
>>
>> On 3/15/10 10:19 AM, Sean Riddle wrote:
>>
>>> To try to build the Ptolemy JAI actors, just remove the line
>>> 'ptolemy/actor/lib/jai/**' in build-area/settings/ptolemy-excludes. You
>>> might need to remove other directory entries if the JAI actors depend on
>>> other code. Keep in mind that the reason the JAI actors were exempted
>>> from compilation in the first place could be because they are a pain to
>>> compile.
>>>
>>> - Sean
>>>
>>> On Mar 15, 2010, at 9:50 AM, Thomas M. Parris wrote:
>>>
>>>  All,
>>>>
>>>> We would like to make use of the Ptolemy JAI actors. But they do not
>>>> appear
>>>> to be built as part of the Ptolemy core. We found some dialog about this
>>>> dating from 2006, but the details have likely changed sibstantially
>>>> since
>>>> then.
>>>>
>>>> Can anyone provide a recipe for building the Ptolemy JAI actors so
>>>> they are
>>>> available for use in Kepler (we're on the trunk).
>>>>
>>>> Many thanks,
>>>> Tom
>>>>
>>>> _______________________________________________
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>>>>
>>>
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>>>
>>
>> --
>> Christopher Brooks, PMP                       University of California
>> CHESS Executive Director                      US Mail: 337 Cory Hall
>> Programmer/Analyst CHESS/Ptolemy/Trust        Berkeley, CA 94720-1774
>> ph: 510.643.9841 fax:510.642.2718          (Office: 545Q Cory)
>> home: (F-Tu) 707.665.0131 cell: 707.332.0670
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