Hi,

I had a similar problem some time ago, a quad strip would disappear if 
the initial point was outside the camera FOV.

Try ->dirtyBound() on the geometry node you add data to.

jp

[EMAIL PROTECTED] wrote:
> 
> 
>  I have set up a earth globe view where I have a trajectory line that 
> "trails" out of the end of a 3d aircraft model.
> I have two slightly modified versions of a nodeTracker and Terrain 
> manipulator that I am using. (Both have
> slightly modified up vector calculations). My problem is that depending on my 
> viewing angle the trajectory
> line  will disappear. I have set the culling mode on the viewer's camera to 
> NO_CULLING and have tried to 
> set all nodes to setCullingActive(false). The line itself is a primitive 
> class that I append points to as they
> arrive (I get my data elsewhere).The model is placed at the same location as 
> the last point appended 
> to the line.  The behavior seems as follows. If I view the model (which is 
> the node
> currently attached to my nodeTracker) from ANYWHERE  behind the model which 
> is the side the trajectory
> line emminates from (back to the original point), the line disappears. The 
> model never disappears but the entire
> line disappears. It is not clipping the line off at a near clip plane because 
> the entire line disappears, and I am far enough
> away (and off to the side) that at least some if not all the line should be 
> in view.
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> 

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