[osg-users] Reading files and callbacks

[Aaron Andersen]

Hi Robert,

Might it make sense to add an optional callback to either the  
PagedLOD+ProxyNode classes or to the DatabasePager for when loading of  
a node is complete? If so, would patches be accepted?

Thank you,
Aaron

Quoting Robert Osfield <robert.osfield at gmail.com>:

> Hi Tony,
>
> On 31 August 2015 at 03:54, Tony Vasile <minghia at gmail.com> wrote:
>
>> We have a bunch of OpenFlight models with have information in some of the
>> nodes that we use to configure our system. Is it better to use ReadNodeFile
>> and post-process the file with a NodeVisitor? Or is is better to override
>> osgDB::ReadFileCallback and somehow exercise our code when it finds a node
>> of particular interest?
>>
>
> You'll likely be using the same code to find the nodes of interest no
> matter what approach you use, to me it's really just an issue where it'll
> be most convenient/flexible for you to invoke it in your application.
>
> If you are loading the files directly by your application by calling
> osgDB::readNodeFile(..) then adding post processing in afterwards would be
> easy, but if the files are being read as part of paged database then using
> the ReadFileCallback would be required.
>
> Robert.