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 > > > _______________________________________________ > > > osg-users mailing list > > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g > > > > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g > > > IMPORTANT: This email remains the property of the Australian Defence Organisation and is subject to the jurisdiction of section 70 of the CRIMES ACT 1914. If you have received this email in error, you are requested to contact the sender and delete the email. > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
