kicad-developers team mailing list archive

[Dick Hollenbeck <dick@xxxxxxxxxxx>]

On 04/29/2013 01:22 PM, Dick Hollenbeck wrote:
> Thomas,
> 
> 
> The keepout polygon you are putting into the DSN file is on a non-existent layer named
> "signal".
> 
> It seems like a freerouter idiosyncrasy that it accepts this.
> 
> Here is the grammar for specctra polygon:
> 
> 
> (polygon
> <layer_id >
> <aperture_width>
> {<vertex> }
> [(aperture_type [round | square])]
> )
> 
> Here is what you are outputting:
> 
> 
>     (keepout "" (polygon signal 0  220980 -125730  232410 -125730
> 		232410 -137160  220980 -137160  220980 -125730))
> 
> 
> 1) Do you agree this is probably non-standard behaviour on the part of freerouter?  If
> not, can you tell me the page number within the specctra spec where this single layer
> approach is explained?
> 
> 
> 2) Do you find that although this is only a *single* fictitious layer that you are
> outputting, that the keepout is respected on *all* cu layers within freerouter?
> 
> 
> There were a couple of user's using this export with the Electra router, is the reason I
> ask.  It is important to know when we are relying on non-standard behaviour.


Never mind, I found it 12 seconds after I clicked "send".  Top of page 108.

Cool.  So the concept is general, not freerouter specific.

This is making use of a "reserved_layer_name" which is actually a category consisting of
all cu layers.   Good work.






> 
> 
> Thanks,
> 
> Dick
>