Re: Scion frame grabber plugins under OS X 10.4

Posted by ctrueden on
URL: http://imagej.273.s1.nabble.com/Scion-frame-grabber-plugins-under-OS-X-10-4-tp3701568p3701577.html

Hi Jeff,

I recently discovered that support libraries for plugins do not have
to be in the JRE extensions folder (e.g.,
/System/Library/Java/Extensions), but actually work fine if placed in
the ImageJ plugins folder with the relevant plugin (I hadn't realized
ImageJ's plugin class loader was that smart).

Actually, the pure plugins folder approach is better on Mac OS X,
because if you place a library in the JRE extensions folder, all its
dependencies must also be placed in the extensions folder, or else
Mac's Java will not find the dependencies properly (even if they are
present in the classpath).

To reflect these issues, I have changed the installation instructions
for Bio-Formats to indicate all JARs should go into the plugins
folder.

-Curtis

On 9/14/06, Jeff Hardin <[hidden email]> wrote:

> Hi folks,
>
> After a lot of class path troubleshooting, I realized I'd made a dumb
> mistake, and had an extra copy of scion.jar in System/Library/Java/
> Extensions. ImageJ was using that copy, and so it couldn't find
> ij.jar. Once I trashed that, all was well.
>
> Sorry for the silly mistake, and hopefully if someone does the same
> thing at some point in the future they'll find the relevant post.
>
> Cheers,
>
> Jeff
>
> ----------------------------------------------
> Jeff Hardin
> Professor, Department of Zoology
> Director, Biology Core Curriculum
> University of Wisconsin
> 1117 W. Johnson St.
> Madison, WI 53706
> voice: [phone]
> fax: [phone]
> email: [hidden email]
>
>
> On Sep 13, 2006, at 11:00 PM, IMAGEJ automatic digest system wrote:
>
> > Date:    Wed, 13 Sep 2006 13:00:39 -0500
> > From:    Jeff Hardin <[hidden email]>
> > Subject: Scion frame grabber plugins under OS X 10.4
> >
> > Dear friends,
> >
> > I have been a happy user of the Mac OS 9 versions of Scion's ImageJ
> > plugins for their digitizing boards (we have more than one AG-5),
> > which I have adapted for my own 4d acquisition suite. I'm now trying
> > to get the plugins working under Mac OS X 10.4 (Tiger), under Java VM
> > 1.4.2. I have tried my modified plugins, Scion's plugins bundled with
> > the old ImageJ 1.23, and their newer plugins under ImageJ 1.34 for
> > use with their newer FG7 board. They all throw exceptions related to
> > the creation and/or conversion of Simages (a Scion data format) to
> > ImageJ ImagePlus objects. This means that the "Capture Grayscale"
> > plugin fails at this point, and the "Export" option within the Live
> > Capture plugin fails with a general exception.  The plugins compile,
> > but there seems to be something wacky at this point.
>