Filtering ratsnest by component

On 27.09.2013 00:44, J S wrote:

Hey,

 

I recently purchaced Eagle standard and am currently laying out a few

pcbs. Is there any way to filter the ratsnest by component? Or at least

by layer? It becomes a giant mess with multiple layers of airwires all

crossing one another, I can almost feel the myopia developing already.

Any help would be greatly appreciated!

 

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You can filter it by signals. From HELP RATSNEST:

Hiding selected airwires

Sometimes it may be useful to hide the airwires of selected signals, for

instance if these will later be connected through a polygon. Typically

this could be supply signals, which have a lot of airwires that will

never be routed explicitly and just obscure the other signals' airwires.

To hide airwires the RATSNEST command can be given the exclamation mark

('!'), followed by a list of signals, as in

RATSNEST ! GND VCC

which would hide the airwires of the signals GND and VCC.

To have the airwires displayed again just enter the RATSNEST command

without the '!' character, and the list of signals:

RATSNEST GND VCC

This will activate the display of the airwires of the signals GND and

VCC and also recalculates them. You can also recalculate the airwires

(and polygons) of particular signals this way.

The signal names may contain wildcards, and the two variants may be

combined, as in

RATSNEST D* ! ?GND VCC

which would recalculate and display the airwires of all signals with

names beginning with 'D', and hide the airwires of all the various GND

signals (like AGND, DGND etc.) and the VCC signal. Note that the command

is processed from left to right, so in case there is a DGND signal the

example would first process it for display, but then hide its airwires.

To make sure all airwires are displayed enter

RATSNEST *

Note that the SIGNAL command will automatically make the airwires of a

signal visible if a new airwire is created for that signal. The RIPUP

command on the other hand will not change the state of hiding airwires

if a wire of a signal is changed into an airwire.

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Mit freundlichen Gruessen / Best regards

Richard Hammerl

  CadSoft Support -- hotline@cadsoft.de

  FAQ: http://www.cadsoft.de/training/faq/