Open Inventor Forum http://www.openinventor.net/ This is a discussion forum for OpenInventor by VSG, an object-oriented, cross-platform 3D graphics toolkit for the development of industrial-strength interactive 3D graphics applications using C++, .NET or Java. en Thu, 20 Jun 2013 08:30:22 GMT vBulletin 60 http://www.mc3dviz.com/openinventor-forum/images/misc/rss.jpg Open Inventor Forum http://www.openinventor.net/ Performance with custom event http://www.openinventor.net/showthread.php?t=731&goto=newpost Fri, 07 Jun 2013 06:03:43 GMT Hey there, currently i am investigating the introduction of touchevents into coin3D. I am using Qt as toolkit and therefore SoQt as toolkit... Hey there,

currently i am investigating the introduction of touchevents into coin3D. I am using Qt as toolkit and therefore SoQt as toolkit binding.
What i have done is pretty similar to the implementation of touchevents in Open Inventor itself.
I have a custom SoQtDevice (SoQtTouch), which translates QTouchEvents into SoTouchEvents.

However, i have also several gesture recognizers like pan recognizer, pinch recognizer etc. What i do is as follow:
I translate a QTouchEvent into a SoTouchEvent. Then is send this SoTouchEvent to my gesture recognizers, if they recognize
a SoGestureEvent, i process this event with the SoSceneManager like this:
Code:
sceneManager->processEvent(gestureEvent)
This works quite well. I can put my own SoEventCallback node into the scenegraph and respond to SoTouchEvents and all my SoGestureEvents.
However the problem is, that the performance of my application becomes very sluggish.

When i profile my application, by setting the environment varibales COIN_PROFILER and COIN_PROFILER_OVERLAY (displays statistics overlayed on the application), i can see that the processing
of my SoGestureEvents temporarily drastically increases the number of SoEventCallback nodes and SoSeparator in my scenegraph.
This is only temporally, when the SoGestureEvents have ended, the number of my nodes goes down again.

In the callback i mark the event and also the SoHandleEventAction carried by the SoEventCallback node as handled, to make sure that rest of
scenegraph will not traversed. The SoEventCallback node is one of the first node in the scenegraph.

Anyone an idea, why this is?
Maybe mikeheck?

Thanks in advance ]]> Open Inventor Main Forum kinglui987 http://www.openinventor.net/showthread.php?t=731 Mirror the scene http://www.openinventor.net/showthread.php?t=728&goto=newpost Tue, 04 Jun 2013 04:53:40 GMT Hi, I have a scene graph which consists of volume data and some minor decorations. At one point of application I need to show this volume flipped,... Hi,
I have a scene graph which consists of volume data and some minor decorations. At one point of application I need to show this volume flipped, i.e. all objects in the scene should appear as in mirror. Can anybody give me a hint which class can help me (if it is possible)? Thanks ]]> Open Inventor Main Forum Alexandra http://www.openinventor.net/showthread.php?t=728 Question about PoCartesianGrid3D http://www.openinventor.net/showthread.php?t=727&goto=newpost Fri, 31 May 2013 01:44:13 GMT Recently I wrote a demo for *PoCartesianGrid3D* rendering. But after build and run, I cannot see anything. Can anybody help me point out the problem? Recently I wrote a demo for PoCartesianGrid3D rendering. But after build and run, I cannot see anything. Can anybody help me point out the problem?
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]]> Open Inventor Main Forum greenivy http://www.openinventor.net/showthread.php?t=727 EAGE Conference 2013 http://www.openinventor.net/showthread.php?t=718&goto=newpost Tue, 21 May 2013 20:28:53 GMT EAGE 2013 Conference & Exhibition
June 10 - 13, 2013
London, United Kingdom

VSG will be exhibiting at the EAGE 2013 to present our Open Inventor 3D SDK and our Avizo Fire 3D analysis software.
VSG will be with FEI in booth #1034.

3D VISUALIZATION & ANALYSIS SOFTWARE FOR:
  • Seismic interpretation
  • Reservoir engineering
  • Core sample analysis
Avizo Fire highlights
3D software platform for geomaterials analysis
  • 3D-image import from CT-scan, electron microscopy, FIB/SEM
  • Interactive 3D exploration of virtual cores and rock samples
  • Grain and phase analysis, Pore Network Modeling
  • Petrophysical properties simulation: Permeability, Formation Factor…
More information »

Open Inventor highlights
3D graphics toolkit for E&P applications development
  • Comprehensive object-oriented 3D library
  • High quality seismic volume visualization
  • Advanced mesh visualization for reservoir engineering
  • Very large data management
  • Charts and graphs representation
More information »

RSVP
To schedule a meeting and/or a demo, please RSVP to Davy Penhard at Davy.Penhard@fei.com.
We look forward to meeting with you at EAGE 2013! ]]> News mikeheck http://www.openinventor.net/showthread.php?t=718