Hi Robert,
Thanks a lot for your help and support. Overwhelmingly, I was able to
achieve dynamic windo insertion / deletion using the suggested Idea. What I
have done is that I have added a new class NewCompositeViewer derived from
CompositeViewer. I have overridden the addView member function in which I first
stop the running threads, add a new view, re-initialize and re-realize the
viewer and re-start the threads.
The Sample is working fine. If you suggestI can post this sample program.
It is not a very jazzy one but only an MFC MDI Application where windows can be
opened and closed dynamically and all the windows share the same document.
Once again, thanks a lot. I will be troubling you every now and then
whenever I am in trouble ;-).
Regards
Harash.
Robert Osfield <[EMAIL PROTECTED]> wrote:
Hi Harash,
Once the view is running its threads it isn't appropriate to
dynamically add a new View, so what you need to do is call
viewer.stopThreading(), add the view then call startThreading().
There is one proviso though, I haven't actually tried this with
CompositeViewer yet, is still a pretty new class. If it doesn't work
we'll need to modify the osgmultiplecameras example to do dynamic
addition/removal of Views, then I can pick up the case at my end and
tweak things so they work, be it modifications to the example or
perhaps to the CompositeViewer implementation itself.
Robert.
On 5/10/07, Harash Sharma wrote:
>
>
>
>
>
> Hi Robert,
>
> Moving on the lines you had suggested, I have now been able to get a
> working MFC MDI Application with osgViewer::CompositeViewer. But there is an
> observation on this issue. The application I am developing requires a window
> to be dynamically opened / closed. The CompositeViewer class is expecting
> all the Views to be added before a call to frame() is made. If I make a call
> to osgViewer::CompositeViewer::frame(), then add a view
> using osgViewer::CompositeViewer::addView(), and again call
> frame(), the program hangs. Debugging, I found that this happens in
>
> osgViewer::renderingTraversal()
> ....
>
> if ( _startRenderingBarrier.valid())
> _startRenderingBarrier->block();
>
> The debugger gives the message: "This process seems to be deadlocked".
> I don't know if it is a bug or if the class is not supposed to be used
> in this manner. Please Help.
>
> Thanks in Advance.
>
> Regards
>
> Harash.
>
> Robert Osfield wrote:
>
> Hi Harash,
>
> On 5/8/07, Harash Sharma wrote:
>
> As you had suggested, I tried creating the osgViewer::CompositeViewer
> object and to it attached the osgViewer::View. Further, as shown in
> osgMultipleCameras example, the traits structure was filled accordingly. The
> problem I am now facing is how to attach the MFC Window to the
> GraphicsContext / osgViewer. OSGMFC achieved this by passing the window
> handle using GetSafeHwnd() to Producer::RenderSurface. But I could not
> locate a mechanism of passing any such information to the osgViewer::View or
> CompositeViewer or Viewer. One Win32WindowingSystemInterface class I could
> locate, but there too I could not find a way out.
>
> I don't have the code to hand, but if your browse through the osg-users
> email archives for the last week you'll see how to use the
> osg::GraphicsContext::Traits::inheritedWindowData set to
> osgViewer::GraphicsWindowWin32::WindowData(hwnd) to tell
> the viewer to realize a window adopting the passed in window. The approach
> is roughly the same as done in Producer::RenderSurface previous, only the
> architecture is a bit different in osgViewer.
>
> Robert.
>
>
>
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://openscenegraph.net/mailman/listinfo/osg-users
> http://www.openscenegraph.org/
>
>
> ________________________________
>
> Ahhh...imagining that irresistible "new car" smell?
> Check out new cars at Yahoo! Autos.
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://openscenegraph.net/mailman/listinfo/osg-users
> http://www.openscenegraph.org/
>
> ________________________________
> Ahhh...imagining that irresistible "new car" smell?
> Check out new cars at Yahoo! Autos.
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://openscenegraph.net/mailman/listinfo/osg-users
> http://www.openscenegraph.org/
>
> ________________________________
> Sucker-punch spam with award-winning protection.
> Try the free Yahoo! Mail
> Beta._______________________________________________
> osg-users mailing list
> [email protected]
> http://openscenegraph.net/mailman/listinfo/osg-users
> http://www.openscenegraph.org/
>
>
> ________________________________
> Sucker-punch spam with award-winning protection.
> Try the free Yahoo! Mail Beta.
>
>
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://openscenegraph.net/mailman/listinfo/osg-users
> http://www.openscenegraph.org/
>
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
---------------------------------
Expecting? Get great news right away with email Auto-Check.
Try the Yahoo! Mail Beta.
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
