Thanks to the folks who answered my recent question:

"Can anyone recommend a Gerber Viewer that will allow a designer to
"light up" a single net at a time - that sort of thing?"

What wasn't quite clear to me in many of the answers was:

1)  are the viewers dependent on the tools that were used to generate
the design or not?

For example, some tools extract a netlist from the Gerber data and then
can "light up" a net or set of nets - but, it seems that some others
might rely on a netlist input.  I may or may not have a netlist input of
the proper form for the tool being recommended.  Thus this new question.

2)  Is the recommended tool capable of dealing with a variety of input
types and capable of generating a netlist on its own?

3)  Is there any reason why blind vias might perturb the process of
extracting a netlist?

Thanks!
--
Fred Marshall
VP Engineering
RGB Spectrum
950 Marina Village Parkway
Alameda, CA 94501
(510) 814-7000

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