So, if the GUID isn't unique, that's a pretty lousy algorithm....
Luckily, I haven't observed that so far.
Ciaran
On Tue, Jun 4, 2013 at 11:57 PM, Matt Lind <ml...@carbinestudios.com> wrote:
> Object GUID is persistent, but not granular enough. I’ve run into cases
> where multiple items get the same GUID. Same goes for CLSID.****
>
> ** **
>
> Matt****
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> *From:* softimage-boun...@listproc.autodesk.com [mailto:
> softimage-boun...@listproc.autodesk.com] *On Behalf Of *Ciaran Moloney
> *Sent:* Tuesday, June 04, 2013 3:55 PM
>
> *To:* softimage@listproc.autodesk.com
> *Subject:* Re: Persistent objects ids****
>
> ** **
>
> Yes, you're right...I can reproduce a change of ID when deleting an object
> and re-opening a scene. However, I would not dismiss the object GUID, which
> appears to persists between sessions despite the change in the object ID
> value. In the below snippet the sphere object changed ID but not GUID.****
>
> ** **
>
> # Name: cylinder****
>
> # ID: 114****
>
> # GUID: {090F2A9A-D1FC-4112-ACC5-9345BEB48954}****
>
> #****
>
> # Name: disc****
>
> # ID: 92****
>
> # GUID: {D03EF191-3962-4540-929D-F5438CE59D79}****
>
> #****
>
> # Name: torus1****
>
> # ID: 68****
>
> # GUID: {1AC14CC7-1175-4E30-9CDD-BC0C0C1DE6EA}****
>
> #****
>
> # Name: sphere****
>
> # ID: 80****
>
> # GUID: {CC63558A-D5A3-4F55-8621-6D428FE2743A}****
>
> # --------------------****
>
> ** **
>
> # Delete cylinder, save and re-open scene ****
>
> ** **
>
> # Name: disc****
>
> # ID: 92****
>
> # GUID: {D03EF191-3962-4540-929D-F5438CE59D79}****
>
> #****
>
> # Name: torus1****
>
> # ID: 69****
>
> # GUID: {1AC14CC7-1175-4E30-9CDD-BC0C0C1DE6EA}****
>
> #****
>
> # Name: sphere****
>
> # ID: 99****
>
> # GUID: {CC63558A-D5A3-4F55-8621-6D428FE2743A}****
>
> #****
>
> # --------------------****
>
> ** **
>
> ** **
>
> ****
>
> On Tue, Jun 4, 2013 at 6:38 PM, Matt Lind <ml...@carbinestudios.com>
> wrote:****
>
> This is not safe between sessions as IDs are dynamically generated and
> assigned in the order objects were created in the scene. If an older
> object is deleted and the scene reopened, everything after it will have a
> new ID.****
>
> ****
>
> Matt****
>
> ****
>
> ****
>
> ****
>
> *From:* softimage-boun...@listproc.autodesk.com [mailto:
> softimage-boun...@listproc.autodesk.com] *On Behalf Of *Ciaran Moloney
> *Sent:* Tuesday, June 04, 2013 8:52 AM
> *To:* softimage@listproc.autodesk.com
> *Subject:* Re: Persistent objects ids****
>
> ****
>
> Hi,****
>
> did you try XSIUtils.DataRepository.GetIdentifier() passing the
> siObjectGUID argument?****
>
> I've used this to keep track of ICE nodes without relying on name strings.
> It's persistent between sessions and is preserved when models are exported.
> ****
>
> Works like a charm.****
>
> The only problem is that it's possibly a bit tricky to get a pointer back
> to the object, since you need to know what you're looking for. I use
> Application.FindObjects()
> to get a collection of objects of this class, then check for the ObjectGUID
> I'm looking for.****
>
> ****
>
> Ciaran****
>
> ****
>
> ****
>
> On Tue, Jun 4, 2013 at 12:49 PM, Michal Doniec <doni...@gmail.com> wrote:*
> ***
>
> Hi,****
>
> ****
>
> Is there any obvious way I am missing which would allow me to identify
> objects in the scene, but not by name?****
>
> Something like ObjectID, but persistent between scene saves and loads. I
> can generate UUID or something similar using "ObjectAdded" event and store
> custom property but I'd rather avoid it.****
>
> ****
>
> I want to be able to track objects regardless if they were renamed or not.
> ****
>
> ****
>
> --
> ----------
> Michal
> http://uk.linkedin.com/in/mdoniec ****
>
> ****
>
> ** **
>
