Re: [osg-users] viewer-getCameraWithFocus() is gone?
Hi, I think I have resolved the problem in the mean time. IIRC the problem was that I was picking during regular mouse events (not the osg ones) which could happen any time during traversals. I believe I fixed it with a mutex around frame() and the picking. That might be suboptimal with regards to performance, but would have been difficult to do in another way due to our framework. Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=56375#56375 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] viewer-getCameraWithFocus() is gone?
Hi, I had the same question and considered myself lucky to find this solution so quickly, but I have a problem: Sporadically, my application crashes in the std::vector code with vector iterator not dereferencable. This happens in the call to back(). Actually I would think that this crash can't happen because I copied your code including the empty() query which should ensure that back() works. The only difference in my code is that I had to add .get(), but I don't think that makes a difference. Do you have any idea why this could crash? I'd guess it's some kind of multithreading issue. Is there anything in osg I should be worrying about here? Thanks and Regards, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=55935#55935 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] viewer-getCameraWithFocus() is gone?
Hi David, Given the details it's not possible to know what might be going wrong. You are the person best placed to dig into the code and run it in a debugger to see what is happening. It could be a threading issue, but really can't say with just small code segments to work with. Try running the application SingleTheaded to see if it makes any difference. Also if you are accessing any data structures try copying them or taking a ref_ptr to them before you start working on them, perhaps the data structure is be deleted by another thread. Robert. On 21 August 2013 15:23, David Zaadstra david.zaads...@telespazio-vega.dewrote: Hi, I had the same question and considered myself lucky to find this solution so quickly, but I have a problem: Sporadically, my application crashes in the std::vector code with vector iterator not dereferencable. This happens in the call to back(). Actually I would think that this crash can't happen because I copied your code including the empty() query which should ensure that back() works. The only difference in my code is that I had to add .get(), but I don't think that makes a difference. Do you have any idea why this could crash? I'd guess it's some kind of multithreading issue. Is there anything in osg I should be worrying about here? Thanks and Regards, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=55935#55935 ___ 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] viewer-getCameraWithFocus() is gone?
What is the appropriate call for achieving the same thing now with OSG 3.2.0 when the method Viewer::getCameraFocus is gone? /Anders -- __ Anders Backman, HPC2N 90187 Umeå University, Sweden and...@cs.umu.se http://www.hpc2n.umu.se Cell: +46-70-392 64 67 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] viewer-getCameraWithFocus() is gone?
Hi Anders, On 6 August 2013 07:57, Anders Backman ande...@cs.umu.se wrote: What is the appropriate call for achieving the same thing now with OSG 3.2.0 when the method Viewer::getCameraFocus is gone? I have added information about which camera the event is over to the osgGA::GUIEventAdapter, it now has a PointerData stack, the topmost entry will be the one with the focus, and it's PointerData.object member variable will store the pointer to the Camera. This new scheme can handle situations where you have distortion correction or other RTT techniques being deployed in the Viewer. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] viewer-getCameraWithFocus() is gone?
So you cannot find this out through a pointer to the viewer? You need to go through the EventAdapter? /A On Tue, Aug 6, 2013 at 10:20 AM, Robert Osfield robert.osfi...@gmail.comwrote: Hi Anders, On 6 August 2013 07:57, Anders Backman ande...@cs.umu.se wrote: What is the appropriate call for achieving the same thing now with OSG 3.2.0 when the method Viewer::getCameraFocus is gone? I have added information about which camera the event is over to the osgGA::GUIEventAdapter, it now has a PointerData stack, the topmost entry will be the one with the focus, and it's PointerData.object member variable will store the pointer to the Camera. This new scheme can handle situations where you have distortion correction or other RTT techniques being deployed in the Viewer. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- __ Anders Backman, HPC2N 90187 Umeå University, Sweden and...@cs.umu.se http://www.hpc2n.umu.se Cell: +46-70-392 64 67 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] viewer-getCameraWithFocus() is gone?
Hi Anders,
On 6 August 2013 09:40, Anders Backman ande...@cs.umu.se wrote:
So you cannot find this out through a pointer to the viewer? You need to go
through the EventAdapter?
You can get the last event via the osgViewer::View::getEventQueue() method, i.e.
osgGA::GUIEventAdapt::PointerDataList pdl =
viewer.getEventQueue()-getCurrentEventState()-getPointerDataList();
if (!pdl.empty())
{
Camera* camera = dynamic_castosg::Camera*(pdl.back()-object);
}
If you are handling events then the event itself will have all this
information. I realize the new scheme is more complicated but it's
much more flexible and robust at handling sophisticated camera setups.
Robert.
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