Hi Lan, Not sure if I understood your question well. The only thing I can say is that I am using SharedGroups extensively, placing single objects at all loactions in the 3D space. And it works perfectly. The shared object can be a single Shape3D or a combination of shapes and group objects. I always use the following standard structure:
Shape3D or Group (whatever Branch, Transform, etc.) is a child of: SharedGroup, which is pointed to by one or more than one: Link node, which is a child of: TransformGroup, which most of te time is a child of a BranchGroup (this to allow detaching and re-attaching the whole structure in a live universe). I can assure you, other TransformGroups don't change your original SharedGroup. I mean TransformGroups above the various links. Of course, TransformGroups included in the SharedGroup may change the SharedGroup, but then it happens at all locations where the SharedGroup is referenced. Dirk ----- Original Message ----- From: "Lan Wu-Cavener" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, December 18, 2003 5:45 PM Subject: [JAVA3D] question regarding SharedGroup > Hi, > > I would like to have someone to confirm the correctness following approach: > I have a grid that was divided into four triangles. I rendered shrubs for > this grid and use this as a stamp of under story of my terrain. > gridStamp class has a SharedGroup SG[4] > | > ------------------------------------- > | | | | > triangle triangle triangle triangle > SG1 SG2 SG3 SG4 > For each grid that I need to reference these triangles, I will add a > TransformGroup node on top of the Link that points to the SG[i]. i.e. > for any grid BranchGroup: gridBG1 > | > --------------------------------------- > | | | | > TG1 TG2 TG3 TG4 > | | | | > Link1 Link2 Link3 Link4 > | | | | > triangle triangle triangle triangle > SG1 SG2 SG3 SG4 > > My question is that the TransformGroups applied to the one set of link > objects should not change the SharedGroups themselves, correct? So when the > other grids use their own TransformGroups to link to the SharedGroups, they > are not affected by previous grids who referenced the SharedGroups. > Thanks for you time! > Lan > > Lan Wu-Cavener > Dept. of Landscape Architecture > > =========================================================================== > 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". =========================================================================== 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".
