Re: [osg-users] Applying Rotation To An Object?
Hi Eillot, You either need to write your own callback to update the PossitionAttitudeTransform's rotation directly yourself, composing the two rotation using the osg::Quat class, or use two seperate transforms arranged in a parent child relationship. Robert. On Mon, Apr 26, 2010 at 3:51 AM, Elliot Pilkington silcv...@googlemail.com wrote: Having created a sphere and applying a texture and lighting i now need to apply a rotation to my sphere, i have done this by using an animate callback. Code: PositionAttitudeTransform *rotate_plntOne = new PositionAttitudeTransform; rotate_plntOne-addChild(geode_planetOne); rotate_plntOne-setUpdateCallback( new AnimationPathCallback(osg::Vec3(0, 0, 0), osg::Z_AXIS, inDegrees(50.0f)) ); This was fine for what I needed but I now need to apply two rotations, one around its own axis whilst it also around another point, Imagine a planet for example. I searched the forums and have seen people using the PositionAttitudeTransforms and would like some help with this, I just cant seem to get my code to work. I was just wondering, could someone show me the code for applying two rotations to an object because i am really stumped and dont think im going to work this one out any time soon, embarrassingly. Any help would be much appreciated! Thank You. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27266#27266 ___ 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
Re: [osg-users] Applying Rotation To An Object?
Thank you for your reply, Though i still cant get the code correct to make two rotations. I just cant get any of the code combinations that I've tried to perform two rotations. If anyone has any sample code which illustrates rotations it would be very much appreciated. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27292#27292 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Applying Rotation To An Object?
Hi I don't have code to hand but this old creator tutorial I put together along time ago explains the concept of 2 PositionAttitudeTransform (DOF's) http://www.vis-sim.com/creator/creator_dof1_ex_04.pdf Gordon Tomlinson Product Manager 3d Technology Project Wyvern Overwatch(r) An Operating Unit of Textron Systems -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Elliot Pilkington Sent: Monday, April 26, 2010 7:25 PM To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] Applying Rotation To An Object? Thank you for your reply, Though i still cant get the code correct to make two rotations. I just cant get any of the code combinations that I've tried to perform two rotations. If anyone has any sample code which illustrates rotations it would be very much appreciated. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27292#27292 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
