It's a bug in the 3D network code. The 2D network code ought to work
We've fixed the problem internally today -- as I thought, some code
was missing -- but tickled an odd bug which is vexing us so we're not
quite ready to do a CVS commit. I think we're closwe.
On Jun 4, 2008, at 3:04 PM, ST Charles, Jesse Lee wrote:
> Thanks so much for your quick reply!
> A quick question regarding our options at this point:
> My team needs to have a visualization of this system soon, is this
> bug found in the 2d network or is it just in the 3d network?
> If not, it shouldn't be too much effort to temporarily use a 2d
> visualization instead of the 3d one.
> Let me know if you make any progress with the 3d network bug or if
> I can
> help in tracking it down.
> Thanks again for your help,
> -----Original Message-----
> From: MASON Multiagent Simulation Toolkit
> [mailto:[log in to unmask]] On Behalf Of Sean Luke
> Sent: Wednesday, June 04, 2008 2:10 PM
> To: [log in to unmask]
> Subject: Re: 3d Edge Portrayal Problem
> On Jun 4, 2008, at 1:27 PM, Jesse St. Charles wrote:
>> First -
>> When the simulation is running, the network object is being updated
>> correctly however the edges that are being visualized seem to only be
>> edges which were present when the simulation began (some type of edge
>> portrayal update problem?).
> This is, I think, a bug -- or rather, some missing code -- in MASON's
> NetworkPortrayal.java code. We'll get back on that.
>> Second -
>> After some time running the simulation for a given (not consistent)
>> of generations I recieve this error
>> Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
>> at sim.portrayal3d.network.SimpleEdgePortrayal3D.getModel
> This is probably related to the above. My hypothesis:
> 1. You created some edges.
> 2. MASON displayed those edges.
> 3. You deleted an edge.
> 4. MASON isn't removing that edge. Rather, it's holding onto the old
> displayed edge.
> 5. You deleted one of the objects the phantom edge is pointing to
> (say, the start object).
> 6. When MASON needs to update the phantom edge, it goes in and asks
> for its start and end objects.
> 7. Then it requests the location of the start object.
> 8. MASON politely says: "there's no such object any more!"
> That's what I'm going on.