It appears as if there is a rounding error when converting from mm to mils somewhere in the DRC code. I have the following DRC settings:
0.200 min copper space 0.200 min copper width 0.100 min touching overlap 0.200 min silk width 0.400 min hole diameter 0.250 min annular ring When I run the DRC checker the first line of the log window reads: Rules are minspace 7.88, minoverlap 3.94 minwidth 7.87, minsilk 7.87 min drill 15.75, min annular ring 9.84 >From that is looks like the minspace is being calculated incorrectly - it should be 7.87 along with minwidth and minsilk. If the lines/copper are very close then it seems like that will erratically cause DRC errors, even though there are none (setting the DRC to 0.199 then results in no DRC errors). I suspect the erroneous errors have to do with that rounding. A separate minor issue is that the grid size setting is always lost after a DRC error is found. This is with PCB 20081128 Thanks, Duncan -- Turn ideas into products - http://www.engineersimplicity.com The Art of Engineering - http://blog.engineersimplicity.com _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
