Hi James Cool Here's the bumph on how to submit things to OSG http://www.openscenegraph.org/projects/osg/wiki/MailingLists/Submissions Protocol One thing I would suggest is that you add verbage to the example to explain what the purpose of the example is and how it is achieved etc.. While the intent is clear to yourself it may not be to others ;) some of us are right old thicko's ;)
Gordon __________________________________________________________ Gordon Tomlinson Product Manager 3D Email : gtomlinson @ overwatch.textron.com __________________________________________________________ (C): (+1) 571-265-2612 (W): (+1) 703-437-7651 "Self defence is not a function of learning tricks but is a function of how quickly and intensely one can arouse one's instinct for survival" - Master Tambo Tetsura ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of James Moliere Sent: Friday, October 10, 2008 12:48 AM To: OpenSceneGraph Users Subject: Re: [osg-users] connected shapes demo... All, Here is a robotic arm example of parent child connect shapes. If the good folks at OSG would like to add this to the 'examples' to demonstrate parent/child relationships between primitive objects. Please tell me what else is needed to be added to the examples. Attached is a picture of the arm along with the code. Tomlinson, Gordon wrote: Why should there be an example of this ? You're the 1st person to this ask for particular exact usage, that I have seen on this list. As to examples of using just transforms there are many and they are also covered in most of the tutorials online and into the Guide to OSG written by Paul Martz You might want to Google around on scene graphs and transformations/matrices and how they can be used, to provide local coordinate systems, how you can chain for certain actions( there are some things you cannot do by simply using child transforms you have to do the math in many cases) , there's a lot on the net, also look at how vis-modeling packages like MultigenCreator, Carbon Grpahics Geo, Remo3D etc provide tools to create the models and transformation chains Gordon __________________________________________________________ Gordon Tomlinson Product Manager 3D Email : gtomlinson @ overwatch.textron.com __________________________________________________________ "Self defence is not a function of learning tricks but is a function of how quickly and intensely one can arouse one's instinct for survival" - Master Tambo Tetsura -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of James Moliere Sent: Wednesday, October 01, 2008 10:10 AM To: OpenSceneGraph Users Subject: Re: [osg-users] connected shapes demo... J.P. Thanks for the advice. I believe I see how to connect objects together and will hand over a sample if I can get one going. I'm sorta in disbelief that an example like this doesn't seem to exist. James J.P. Delport wrote: hello, you can connect transforms together in a parent child fashion, this is what a scene "graph" is for. Try make yourself an example with the following structure: root | transform1 -- shape1 | transform2 -- shape2 | transform3 -- shape3 transform1 is child of root shape1 and transform2 are children of transform1 ... jp James Moliere wrote: Gordon, Thanks for letting me know this. Is there a concept of parent/child relationships in OSG with respect to primitive objects? ...To make the cylinder example work? Are all objects that are placed into the scene work off of global coordinates? James Gordon Tomlinson wrote: Nope there's no example that shows this, but many things are possible with by writing code __________________________________________________________ Gordon Tomlinson [EMAIL PROTECTED] IM: [EMAIL PROTECTED] www.vis-sim.com www.gordontomlinson.com __________________________________________________________ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of James Moliere Sent: Tuesday, September 30, 2008 10:36 PM To: [email protected] Subject: [osg-users] connected shapes demo... Hello, Is there a connect shapes example? For instance, I'd like to have 3 cylinders where 2 of the cylinders connected sequentially at the end of the previous cylinder. When I rotate cylinder 1, I'd like the others to rotate about cylinder 1 as though they are connected without doing any extra calculations. The same goes for cylinder 2 but this time cylinder 1 stays stationary and cylinder 3 moves. Is this possible? Is there an example that shows this? Thanks! _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegrap h.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegrap h.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph .org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g
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