Re: gEDA-user: DRC rule structure

[Andrew Poelstra <asp11@xxxxxx>]

On Sun, Aug 15, 2010 at 01:11:15PM -0500, John Griessen wrote:
> 
> Sounds good.  Do you imagine constructing a set of objects, (a LISP list maybe),
> that belong to a range after the filters are done, and then doing operations
> on it such as sum up number values of capacitance?  If you maintain these ranges
> between times and only change them as an object is added or edited, you don't need
> to "run DRC on all" very often...  good for DRC as you go with low
> cost of computer power.
> 

Actually, I don't think that's true:

Suppose I have a trace whose clearance is set to 2.5mm - if I lay any component
too close while the real-time DRC is running, how can it know that it's breaking
a rule without re-checking the clearance for every object on the PCB?


Andrew



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