Hi Guerro, Hope I understand you correctly - but couldn't you just use
node->getParent()
perhaps cast it
if(node->asGroup())
osg::Group* group = dynamic_cast<osg::Group*>(node);
..or maybe getnodePath() to find what your after. Sorry if I've mispellt
the methods.
----- Original Message -----
From: "Guerrero, Michael (CIV)" <[EMAIL PROTECTED]>
To: "OpenSceneGraph Users" <[email protected]>
Sent: Friday, January 25, 2008 2:12 PM
Subject: Re: [osg-users] PagedLOD node page callback
> Hi guys,
>
> I implemented an osgDB::Registry::ReadCallback to catch when an LOD page
> gets loaded. Now the issue I have is distinguishing if the node that I
> get in readNode() came from an LOD page since the ReadCallback gets
> executed for anything that gets loaded as a node.
>
> The only option I see is to check if the filename contains a substring
> that I know is only present on pagedLOD files. If I could somehow
> access the GroupNode that the loaded node was going to be attached to, I
> could determine if it had a parent PagedLOD but I don't see a way to do
> that. Is there a better way?
>
> Michael Guerrero
> Delta3D www.delta3d.org
>
> -----Original Message-----
> From: Robert Osfield [mailto:[EMAIL PROTECTED]
> Sent: Friday, January 25, 2008 1:51 AM
> To: OpenSceneGraph Users
> Subject: Re: [osg-users] PagedLOD node page callback
>
> Hi Paul,
>
> osg::observer_ptr<> is the only public example of osg::Observer in
> action that I can think of.
>
> Robert.
>
> On Jan 25, 2008 12:26 AM, Paul Pocock <[EMAIL PROTECTED]>
> wrote:
>>
>> Hi Robert, I was wondering how you would use osg::Observer and are
> there
>> any examples. Would you construct it as
>>
>> osg::observer_ptr<osg::Object> pagedLODObserver ?
>>
>> and catch page unloads by testing for objectDeleted() ?
>>
>>
>> On Thu, 2008-01-24 at 09:01 +0000, Robert Osfield wrote:
>> > Hi Michael,
>> >
>> > To monitor file loads you just need to assign a custom
>> > osdDB::Registry::ReadCallback to the Registry..
>> >
>> > To catch unloads you have two routes, add an custom osg::Observer to
>> > PagedLOD objects to get informed when they get deleted or to create
>> > your own DatabasePager subclass.
>> >
>> > Robert.
>> >
>> > On Jan 23, 2008 10:47 PM, Guerrero, Michael (CIV) <[EMAIL PROTECTED]>
> wrote:
>> > >
>> > >
>> > >
>> > >
>> > > Hi, I'm searching for a convenient way to be alerted when a
> PagedLOD node
>> > > gets either paged in or out. Is there a preferred method of doing
> this?
>> > >
>> > >
>> > >
>> > > Thanks,
>> > >
>> > > Michael
>> > > _______________________________________________
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>> > > [email protected]
>> > >
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>> > >
>> > >
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