#16647: java3d doesn't work.
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Reporter: gagern | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.3
Component: graphics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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Even after running `./sage -i java3d`, the java3d viewer will fail to
load:
{{{
sage: D=dodecahedron()
sage: D.show(viewer="java3d", verbosity=True)
Exception in thread "main" java.lang.NoClassDefFoundError:
javax/media/j3d/Canvas3D
at
org.sagemath.sage3d.ObjectViewerApplet.showView(ObjectViewerApplet.java:49)
at
org.sagemath.sage3d.ObjectViewerApplet.showView(ObjectViewerApplet.java:40)
at
org.sagemath.sage3d.ObjectViewerApp.main(ObjectViewerApp.java:28)
Caused by: java.lang.ClassNotFoundException: javax.media.j3d.Canvas3D
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 3 more
}}}
Adding a `set -x` to the `sage3d` script I see it executing these
commands:
{{{
++ …/sage/local/bin/sage-pypkg-location sagenb
+ SAGE3D_HOME=…/sage/local/lib/python2.7/site-
packages/sagenb-0.10.8.2-py2.7.egg/sagenb/data/sage3d
+ cd …/sage/local/lib/python2.7/site-
packages/sagenb-0.10.8.2-py2.7.egg/sagenb/data/sage3d
+ export LD_LIBRARY_PATH=…/sage/local/lib/python2.7/site-
packages/sagenb-0.10.8.2-py2.7.egg/sagenb/data/sage3d/lib/amd64
+ LD_LIBRARY_PATH=…/sage/local/lib/python2.7/site-
packages/sagenb-0.10.8.2-py2.7.egg/sagenb/data/sage3d/lib/amd64
+ java -classpath
lib/sage3d.jar:lib/ext/j3dcore.jar:lib/ext/vecmath.jar:lib/ext/j3dutils.jar
org.sagemath.sage3d.ObjectViewerApp …/tmp_ctQ56m.obj
}}}
That `…/sage3d/lib/amd64` directory mentioned in `LD_LIBRARY_PATH` does
not exist. Its parent, the `lib` directory, contains `sage3d.jar` as its
sole content. Most things mentioned on the classpath don't exist either.
instead, `sage/local/java/sun-libs/` contains several jars related to
Java3D.
I also wonder about the version of the spkg, which is given as 20070901. I
think there are newer versions around, although they are a bit hard to
find. Referencs I found:
* http://forum.jogamp.org/java3d-f3728156.html
* http://gouessej.wordpress.com/2012/08/01/java-3d-est-de-retour-java-3d-
is-back/
* http://jogamp.org/deployment/java3d/
I would suggest packaging Java3D 1.6.0-pre10 as a spkg and trying to get
it to work. Or dump support for Java3D altogether.
--
Ticket URL: <http://trac.sagemath.org/ticket/16647>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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