Thanks for the answer. How could I solve this? 2016-12-04 12:47 GMT+00:00 Robert Osfield <robert.osfi...@gmail.com>:
> Hi Bruno, > > The complication with AutoTransform is the it computes it's values > only in the CullVisitor so you'll inherit what ever the last frame > used for it's settings. This should work OK most of the time. If you > have multiple views on the scene this will mean that there are > multiple stats but only the last one will be left in place for the > next frame. > > Robert. > > > > On 3 December 2016 at 17:55, Bruno Oliveira > <bruno.manata.olive...@gmail.com> wrote: > > Hello, > > > > in my scene graph I'm using an AutoTransform to add a circle with > Radius=10, > > centered on (0,0,0): > > > > float Radius = 10; > > for (int i = 0; i < nPointsInCircle; i++) > > vertArray[i] = Vec3d( radius * sin(...), radius* cos(...), 0.)); > > > > then I add this to a Drawable + Geode, and add that Geode to an > > AutoTransform: > > > > auto* autoTransform = new osg::AutoTransform; > > autoTransform->addChild(circleGeode); > > autoTransform->setAutoScaleToScreen(true); > > autoTransform->setPosition(100, 100, 0); > > > > This results in a circle located in (100, 100, 0), with radius 10, > scaling > > automatically to screen. VISUALLY this is what I want. > > Now when I use a PolytopeIntersector on this node, it returns > intersection > > coordinates of the circle , in the Circle's geometry frame, centered in > > (0,0,0) with radius 10. This means that, if I hover my mouse over the > > Circle, which is located in world coordinates in (100, 100, 0), the > > PolytopeIntersector returns coordinates centered in (0,0,0) with maximum > > radius 10. > > > > > > How can I obtain true world coordinates with Autotransforms? > > > > _______________________________________________ > > 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 >
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