Re: [osg-users] OpenFlight: Reading the Extension Record
Paul, Thanks so much. That helps point me in the right direction. Hopefully adding the code will be straight forward. -B -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users- boun...@lists.openscenegraph.org] On Behalf Of Paul Martz Sent: Wednesday, September 22, 2010 1:02 PM To: OpenSceneGraph Users Subject: Re: [osg-users] OpenFlight: Reading the Extension Record Hi Brad -- The original author of the importer isn't around these days, though he does make an occasional rare appearance. I wrote the exporter half of the plugin. Looks like PrimaryRecords.cpp has a class, Extension, for processing an Extension record, but it doesn't appear to parse/save any of the data. Looks like it just creates a Group node and assigns it the name from the extension record, then returns. You would probably want to add some code here to handle the extension record contents the way that you require. The code you quoted below pertains to handling the PushExtension and PopExtension control records, which is only tangentially related to Extension records themselves. -Paul Brad Colbert wrote: Paul, Thanks for the quick reply. I've looked through the source and find a lot of references to Extension but doubt that is what it's for. I was hoping to catch the eye of the author here. -B P.S. One example, I think may or may not be close: Document.cpp:void Document::pushExtension() Document.cpp:OSG_WARN No current primary in Document::pushExtension(). std::endl; Document.cpp:void Document::popExtension() Document.cpp:OSG_WARN Can't decide primary in Document::popExtension(). std::endl; Document.h:// Extension stack Document.h:void pushExtension(); Document.h:void popExtension(); -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users- boun...@lists.openscenegraph.org] On Behalf Of Paul Martz Sent: Wednesday, September 22, 2010 10:35 AM To: OpenSceneGraph Users Subject: Re: [osg-users] OpenFlight: Reading the Extension Record Check the source code. If I recall correctly, the loader reads in comment records and stores them as UserData in the scene graph, but I'm not sure about extension records. The only way to know for certain is to check the source. -Paul Brad Colbert wrote: Hello all, We would like to store some extra meta-data along with (embedded) in our OpenFlight models. Looking at the OpenFlight spec, there appears to be this thing called an Extension Record that can contain many things, even XML which is what we are interested in. To cut-to-the-chase, does the OpenFlight loader in OSG read in any way these Extension Records or, worse, preclude the reading of the record? I know this is a pretty open question but I'm just starting to dig into this. Any information will be more than I have now, thanks! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users- openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OpenFlight: Reading the Extension Record
Hello all, We would like to store some extra meta-data along with (embedded) in our OpenFlight models. Looking at the OpenFlight spec, there appears to be this thing called an Extension Record that can contain many things, even XML which is what we are interested in. To cut-to-the-chase, does the OpenFlight loader in OSG read in any way these Extension Records or, worse, preclude the reading of the record? I know this is a pretty open question but I'm just starting to dig into this. Any information will be more than I have now, thanks! -B --- Brad Colbert Renaissance Sciences Corporation W: 480 374-5073 x:5073 F: 425 675-8044 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenFlight: Reading the Extension Record
Check the source code. If I recall correctly, the loader reads in comment records and stores them as UserData in the scene graph, but I'm not sure about extension records. The only way to know for certain is to check the source. -Paul Brad Colbert wrote: Hello all, We would like to store some extra meta-data along with (embedded) in our OpenFlight models. Looking at the OpenFlight spec, there appears to be this thing called an Extension Record that can contain many things, even XML which is what we are interested in. To cut-to-the-chase, does the OpenFlight loader in OSG read in any way these Extension Records or, worse, preclude the reading of the record? I know this is a pretty open question but I'm just starting to dig into this. Any information will be more than I have now, thanks! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenFlight: Reading the Extension Record
Paul, Thanks for the quick reply. I've looked through the source and find a lot of references to Extension but doubt that is what it's for. I was hoping to catch the eye of the author here. -B P.S. One example, I think may or may not be close: Document.cpp:void Document::pushExtension() Document.cpp:OSG_WARN No current primary in Document::pushExtension(). std::endl; Document.cpp:void Document::popExtension() Document.cpp:OSG_WARN Can't decide primary in Document::popExtension(). std::endl; Document.h:// Extension stack Document.h:void pushExtension(); Document.h:void popExtension(); -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users- boun...@lists.openscenegraph.org] On Behalf Of Paul Martz Sent: Wednesday, September 22, 2010 10:35 AM To: OpenSceneGraph Users Subject: Re: [osg-users] OpenFlight: Reading the Extension Record Check the source code. If I recall correctly, the loader reads in comment records and stores them as UserData in the scene graph, but I'm not sure about extension records. The only way to know for certain is to check the source. -Paul Brad Colbert wrote: Hello all, We would like to store some extra meta-data along with (embedded) in our OpenFlight models. Looking at the OpenFlight spec, there appears to be this thing called an Extension Record that can contain many things, even XML which is what we are interested in. To cut-to-the-chase, does the OpenFlight loader in OSG read in any way these Extension Records or, worse, preclude the reading of the record? I know this is a pretty open question but I'm just starting to dig into this. Any information will be more than I have now, thanks! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users- openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenFlight: Reading the Extension Record
Hi Brad -- The original author of the importer isn't around these days, though he does make an occasional rare appearance. I wrote the exporter half of the plugin. Looks like PrimaryRecords.cpp has a class, Extension, for processing an Extension record, but it doesn't appear to parse/save any of the data. Looks like it just creates a Group node and assigns it the name from the extension record, then returns. You would probably want to add some code here to handle the extension record contents the way that you require. The code you quoted below pertains to handling the PushExtension and PopExtension control records, which is only tangentially related to Extension records themselves. -Paul Brad Colbert wrote: Paul, Thanks for the quick reply. I've looked through the source and find a lot of references to Extension but doubt that is what it's for. I was hoping to catch the eye of the author here. -B P.S. One example, I think may or may not be close: Document.cpp:void Document::pushExtension() Document.cpp:OSG_WARN No current primary in Document::pushExtension(). std::endl; Document.cpp:void Document::popExtension() Document.cpp:OSG_WARN Can't decide primary in Document::popExtension(). std::endl; Document.h:// Extension stack Document.h:void pushExtension(); Document.h:void popExtension(); -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users- boun...@lists.openscenegraph.org] On Behalf Of Paul Martz Sent: Wednesday, September 22, 2010 10:35 AM To: OpenSceneGraph Users Subject: Re: [osg-users] OpenFlight: Reading the Extension Record Check the source code. If I recall correctly, the loader reads in comment records and stores them as UserData in the scene graph, but I'm not sure about extension records. The only way to know for certain is to check the source. -Paul Brad Colbert wrote: Hello all, We would like to store some extra meta-data along with (embedded) in our OpenFlight models. Looking at the OpenFlight spec, there appears to be this thing called an Extension Record that can contain many things, even XML which is what we are interested in. To cut-to-the-chase, does the OpenFlight loader in OSG read in any way these Extension Records or, worse, preclude the reading of the record? I know this is a pretty open question but I'm just starting to dig into this. Any information will be more than I have now, thanks! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
