RE: [FreeWRL] EAI GETNODE problem

[Russ K. <py...@ve...>]

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?

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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