kicad-developers team mailing list archive
Mailing list archive
Re: Interpreting the ARC command
I've also found
https://www.compuphase.com/electronics/LibraryFileFormats.pdf to be useful.
On Mon, Nov 11, 2019 at 4:14 AM Wayne Stambaugh <stambaughw@xxxxxxxxx>
> Take a look at the legacy footprint library file format documentation
> for help. You really should be supporting the new s-expression file
> format. The legacy file format is deprecated and is read only.
> On 11/11/2019 4:42 AM, Avishay Orpaz wrote:
> > I'm writing a program the reads schematic library symbols, and I'm
> > having hard time understanding how arcs are drawn.
> > Taking, for example, the Antenna_Shield symbol from device.lib. This
> > symbol contains two arcs:
> > A -1 -73 32 -882 1242 0 1 0 N 0 -105 -20 -45
> > A 1 -73 32 -918 558 0 1 0 N 0 -105 20 -45
> > Both arcs start at approximately the same angle (-90 = 270 degrees) and
> > end at two different angles - the first at 124 degrees, the second at 56
> > degrees. When the symbol is drawn, the first arc is drone clockwise
> > while the latter is drawn anti-clockwise. So, how is it possible to
> > determine the direction of the arc?
> > Avishay.
> > _______________________________________________
> > Mailing list: https://launchpad.net/~kicad-developers
> > Post to : kicad-developers@xxxxxxxxxxxxxxxxxxx
> > Unsubscribe : https://launchpad.net/~kicad-developers
> > More help : https://help.launchpad.net/ListHelp
> Mailing list: https://launchpad.net/~kicad-developers
> Post to : kicad-developers@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~kicad-developers
> More help : https://help.launchpad.net/ListHelp