I guess u use their default KeyNavigatorBehavior. The problem there is that
'left'/'right' arrows DO turn attached object around some point in front of
it. That is not around 0.0.0 point of the object. At least these are the
conclusions i came to. So, u'd better write your own KeyNavigatorBehavior. I
did and can say that anything IS all right now.
vladimir
-=V=-
>-------<=============>-------<
Join in Java community now!
http://JavaCafe.VirtualAve.net/
>-------<=============>-------<
In your previous letter u wrote:
--------------------------------
YB> Dear developers,
YB> We are a viewplatform object connected to the scene graph and driven by a
YB> transformation
YB> generated by tracking devices to navigate in a virtual world. When we use
YB> the keyboard
YB> as input device, the right and left arrow are only turning the viewplatform
YB> around a vertical axis.
YB> I verified this fact by displaying the 4x4 matrix feeded to the viewplatform
YB> and verifying that
YB> only the 3x3 upper left components are modified.
YB> The problem I have is the following: I place two bulleyes in the world: 1
YB> and 2. I translate the
YB> viewplatform in the world so that I see 1 and 2 as the same point: at this
YB> point my viewpoint
YB> is aligned with the line passing by 1-2. I then ONLY rotate the viewplatform
YB> using the direction
YB> keys. However, when I do that the viewpoint is clearly not doing only a
YB> rotation because
YB> 1 and 2 are going appart from each others. This should not happen because if
YB> the
YB> viewpoint is doing only a rotation then the viewpoint, 1, and 2 should still
YB> be aligned and
YB> 1 and 2 should then be seen at the same point. I verified this in OpenGL
YB> fine.
YB> The only way that I can explained this behavior is if the projection screen
YB> instead of the
YB> viewpoint was rotated. So do I miss something and I need to tune a parameter
YB> of the view
YB> platform or is the perspective model wrong?
YB> Any help would be appreciated
YB> Thanks
YB> Yohan Baillot
YB> _______________________________________________________________________
YB> Yohan BAILLOT
YB> Virtual Reality Laboratory,
YB> Advanced Information Technology (Code 5580),
YB> Naval Research Laboratory,
YB> 4555 Overlook Avenue SW,
YB> Washington, DC 20375-5337
YB> Email : [EMAIL PROTECTED]
YB> Work : (202) 404 7801
YB> Home : (703) 566 3684
YB> Cell : (407) 222 6359
YB> Fax : (202) 767 1122
YB> Web : www.ait.nrl.navy.mil
YB> _______________________________________________________________________
YB> ===========================================================================
YB> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
YB> of the message "signoff JAVA3D-INTEREST". For general help, send email to
YB> [EMAIL PROTECTED] and include in the body of the message "help".
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JAVA3D-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
