Re: [FreeWRL] EAI GETNODE problem

[Sarah D. <sar...@cr...>]

Dethe,

  I've been running some examples on my OS X machine, and I can replicate your
error, but only if I call FreeWRL with an incorrect filename.  This took me
longer than I'd like to admit to figure out - partly because the flooding of
verbose eai messages buries the original error regarding the "problem reading
file ... " that indicates that FreeWRL can't locate the file requested.

  If you aren't getting an error message regarding the filename, could you
possibly forward to me the java file & wrl file that is causing the problem? 
getNode should be working for you under OS X.

Thanks,

Sarah

Quoting Dethe Elza <de...@li...>:

> On 7-May-07, at 1:32 PM, Russ Kinter wrote:
>
> > If you have 64 bit linux, getNode simply doesn't work -not
> > implemented- yet.
> > What does your java console say if you try to run some of the examples
> > that use getNode?
>
> I'm on OS X and getNode works for at least the root node.  I'll try
> compiling the Java examples and see, that's a good idea.
>
> Thanks.
>
> --Dethe
>
> >
> > tc
> > Russ Kinter
> >
> > -----Original Message-----
> > From: fre...@cr... [mailto:fre...@cr...] On
> > Behalf Of
> > Dethe Elza
> > Sent: Monday, May 07, 2007 2:17 PM
> > To: FreeWRL VRML viewer and Shared Virtual World viewer
> > Subject: [FreeWRL] EAI GETNODE problem
> >
> > Hi Sarah (and everyone),
> >
> > I'm writing test for my Python port of EAI, and trying to document
> > the wire protocol.  I'm running into a problem with the GETNODE
> > call.  When I use the value of SYSTEMROOTNODE (i.e.
> > "_Sarah_this_is_the_FreeWRL_System_Root_Node"), then I get back a
> > pointer that looks OK.  But when I use a string that is the name of a
> > DEF'd node in my x3d file, I get a "4504 Bus error".
> >
> > For instance, I have a variation of 1.x3d from the sample files that
> > come with freewrl.  Instead of creating the shape of the box
> > directly, it is created outside the <Scene> as a direct child of
> > <X3D> with DEF="the_box", then in the Scene I have a <Shape
> > USE="the_box"/>.  This works find in freewrl and the box shows up
> > just like it did before, but when I try to get the node using EAI I
> > get the bus error.
> >
> > Since I'm learning EAI as I go along (and not all that proficient
> > with VRML/X3D yet), I'm probably just doing something wrong.  I read
> > in the EAI API spec that I can only access nodes that are DEF'd in
> > the main file, but that is what I'm trying to do.  Is there anything
> > obvious that I'm missing here?
> >
> > Below I've included the output from the verbose library, so you can
> > see what is happening inside of freewrl up until the bus error.
> >
> > Thanks!
> >
> > --Dethe
> >
> > ==================== OUTPUT ==========================
> > newASCIIString for ::
> > newASCIIString for :PLAIN:
> > newASCIIString for :BEGIN:
> > newASCIIString for :SERIF:
> > newASCIIString for :MIDDLE:
> > newASCIIString for :the_box:
> > newASCIIString for :WALK:
> > newASCIIString for :ANY:
> > newASCIIString for :EXAMINE:
> > newASCIIString for :WALK:
> > newASCIIString for :FLY:
> > newASCIIString for :ANY:
> > EAISERVER:create_EAI called
> > conEAIorCLASS - socket made
> > EAISERVER: bound to socket 9877
> > EAISERVER: no client yet
> > EAISERVER: conEAIorCLASS returning TRUE
> > EAISERVER: no client yet
> > readEAIsocket--, retval 1
> > read in from socket 12 bytes, max 4096 bfct 0 cmd <0 A the_box
> >>
> > handle_EAI-- Data is :0 A the_box
> > :
> > EAI_parse_commands:start of while loop, strlen 12 str :0 A the_box
> > :
> > command A
> >
> > ... 0 GETNODE the_box
> > EAI_GetNode - getting the_box
> >
> > ==================== END OUTPUT ======================
> >
> > --
> >
> > As for intelligent machines taking over, a machine does not have to
> > be intelligent to conquer the world; it merely has to be desireable.
> > We've already lost a war to a synthetic species--the automobile--that
> > has killed more than 15 million people; occupied all of our cities
> > except Venice, Italy; and continues to exact crushing taxes in
> > resources, wealth, and time from over half the planet--and everybody
> > wants one. --Grant Thompson
> >
> >
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> > Fr...@cr...
> >
> > _______________________________________________
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> > Fr...@cr...
>
>
> When all else fails, men turn to reason.  --Abba Eban
>
>
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