Lee,
Certainly this should be documented better. It plagued me when I first
started. As far as I figure it should have the capability turned on by
default. As you mentioned having just one Shape3D without the
capability set causes it to die an ugly death. I'm not sure I'd want it
to ignore the exceptions because then we might be dealing with
mysterious pick failures as it ignores the items we forgot to set the
capability on.
Can you tell me any reason you might NOT want the capability set? Why
should it ever be off?
- John
"J. Lee Dixon" wrote:
>
> As a final note/request, I guess I can understand why the Geometry class
> defaults to having the capability turned off. But it does seem a bit
> redundant to have to set the capability for everything in the scene
> since PickTool throws an exception and dies if it finds something that
> does not have the capability set. I figured that if a Geometry did not
> have the right bits set, it would just ignore that Geometry. Instead,
> it dies and you can't even get to the Geometry that you DID enable the
> bit on.
>
> I think this is a quick fix. PickTool should do a try/catch around
> Shape3D.intersect(), and ignore the Shape3D on exception.
>
> Any thoughts??
>
> -Lee
>
> > -----Original Message-----
> > From: J. Lee Dixon [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, January 16, 2001 10:24 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [JAVA3D] PickTool GEOMETRY mode
> >
> >
> > Okay, finally found it. It's in the Geometry class... the
> > documentation
> > was literal. Go figure.... ;)
> >
> > -Lee
> >
> > > -----Original Message-----
> > > From: J. Lee Dixon [mailto:[EMAIL PROTECTED]]
> > > Sent: Tuesday, January 16, 2001 9:37 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: [JAVA3D] PickTool GEOMETRY mode
> > >
> > >
> > > The JavaDoc for PickTool says:
> > > PickTool.GEOMETRY will pick using the geometry of the
> > pickable nodes.
> > > The PickResult returned will contain the SceneGraphPath to
> > the picked
> > > Node. Geometry nodes in the scene must have the ALLOW_INTERSECT
> > > capability set for this mode.
> > > Well, I've looked at Shape3D, and there is no such thing as
> > > ALLOW_INTERSECT. Am I looking in the wrong place? I have used the
> > > PickTool.setCapabilities() function in my loader which creates the
> > > Shape3Ds, but I still get the exception:
> > >
> > > javax.media.j3d.CapabilityNotSetException: Shape3D: no
> > capability to
> > > allow intersect
> > >
> > > whenever I try to select something. Also, I am using the Cylinder
> > > class. What flag should I set in the constructor to allow
> > > interesections??
> > >
> > > I was using the default BOUNDS selection, but this does not
> > work well
> > > with selectable objects that are very close together.
> > >
> > > -Lee
> > >
> > >
> > > J. Lee Dixon
> > > SAIC - Celebration, FL
> > > 407-566-1438
> > > [EMAIL PROTECTED] AOL: LeeOrlando
> > >
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