> When pondering about saving memory 

Do we have a memory problem?  Can you point me to the analysis?

> I was thinking that it would be nice if we just have the
> current diagram (or diagrams) rendered and not all of them. 

Actually, I'd hope that only the current viewport is rendered, not even the
entire current diagram.  I'm not familiar with the Diagram system and
couldn't figure out what it's currently doing after a few minutes with the
Cookbook and the sources, but if all diagrams are being rendered, the most
likely place for it to happen is at project load time.  In addition to, and
perhaps more important than, the memory cost, there's going to be a
significant amount of processing associated with this.  This could be very
expensive for large projects.  Stuff like this should be lazily initialized.

> Also try on the thought of having two or more diagrams
> created from the same information with different scale,
> showing on different displays, edited simultaneously by
> different users and getting changed information from wherever
> the information is saved.

Real-time multi-party collaborative editing?  How likely is that to become
one of our core usage scenarios?  It sounds more like some academic's PhD
thesis.

Tom

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