alessandro terenzi schrieb:
Again thank you very much, I implemented as you suggested and it works
fine...
Nice!
Now I have problems when picking the text that is "really" under the
mouse cursor after having moved the point of view (by a trackball
manipulator) ... the picker returns the text above or below the
intended menu item...may depends on bounding boxes and their update?
No. This was only a guess of mine, but is only relevant if you create
your own geometries.
If this is the case, should I call dirtyBound() method? Considering
that the point of view is often moving, where is the most appropriate
place to call it?
I don´t know which pick-visitor you are using now. In some way or
another the pick visitor will have to "know" the view and projection
matrix of the current view.
Are you using an osg::Viewer? Are you following on the line of the
osgPick-example? Or are you doing things differently? I, for instance,
use a GUI and have an OpenGL window within, so I have to take care to
update the pick-visitor (in fact, I use a new one each time) every time
the projection changes.
Maybe you could post your picking-code, or an excerpt of it.
By the way, concerning the original problem relating to intersectors
and geometry object, it looks like that with Text object,
intersections are found even if you click on the text and not on the
vertex of its bounding box.
Usually all intersections are found, though there were rare
circumstances where I had problems with picking, too. I might open
another thread for this.
Regards,
Andreas
Thanks.
Alessandro
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