Re: [osg-users] TrackballManipulator asymptote

2008-10-30 Thread Richard Baron Penman
thanks again Robert - now I better understand how TrackballManipulator works. I overloaded the calcMovement() function to move consistently and it is working well. Richard Hi *Richard*, The trackball slows as you move into the origin as the rate of movement in is always a percentage of

Re: [osg-users] TrackballManipulator asymptote

2008-10-29 Thread Robert Osfield
Hi Richard, The trackball slows as you move into the origin as the rate of movement in is always a percentage of distance from the center to the eye point. This is just the way it works, it's not some that can be fixed as it's doing exactly what it's meant to do. Now if you want some custom

[osg-users] TrackballManipulator asymptote

2008-10-28 Thread Richard Baron Penman
hello, when I use the TrackballManipulator to view my model I find that the camera velocity slows to zero if I try to approach a certain point, which I believe is the origin. Do you know why this occurs and how it can be prevented? Richard ___