[freearchitecture] Re: Re: x3d-cad vs. step

[Terry Hancock]

Lars O. Grobe wrote:
> A short follow-up - could these routines be written in Express? I mean
> can I put a routine written in Express into a Step file creating a stair
> geometry defined by paramters that would be understood by all
> step-parsers than???
> 
> I just try to learn what is possible... ;-) Lars.
> 

A caveat -- although scripting is a nice feature, it's also a hazard!

If you can write scripts within the document, you can -- unless one is
very, very careful -- also write viruses into it.

Even on relatively secure systems (e.g. Linux), this is a real threat,
and since the most likely thing to be infected would be the user's
other CAD files, this will be a really nasty problem if it did happen.

>From the application developer's PoV, this means any such code must be
run in a sandbox. From the format developers' PoV, it might mean "no
thanks, we'll do without scripting".

Just something to consider.

Cheers,
Terry


-- 
Terry Hancock (hancock at AnansiSpaceworks.com)
Anansi Spaceworks http://www.AnansiSpaceworks.com