@@ -17,8 +17,8 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. # ### BOILERPLATE ### -from Tuke.geometry import Polygon -from Tuke.units import IN +from Tuke.geometry import Hole,centerof +from Tuke.units import IN,MIL import shapely.geometry @@ -30,6 +30,9 @@ def to_gerber(elem): layers = {} + # key is size, value is list of vertexes + drill_hits = {} + for g in elem.iterlayout(): def s(n): """Convert float n meters to gerber 3.5 format, (inches) leading zeros removed""" @@ -39,36 +42,44 @@ def to_gerber(elem): # The int() effectively removes tailing decimals and leading zeros. return str(int(n)) - if not hasattr(g,'render'): - continue - - (coords,ext_coords) = g.render() + if hasattr(g,'render'): + (coords,ext_coords) = g.render() - l = str(g.layer) + l = str(g.layer) - # convert coords to mm - def t(v): - return (s(v[0,0]),s(v[0,1])) - coords = [t(v) for v in coords] + # convert coords to mm + def t(v): + return (s(v[0,0]),s(v[0,1])) + coords = [t(v) for v in coords] - # Create gerber layers for each element layer. - if not layers.has_key(l): - layers[l] = '' + # Create gerber layers for each element layer. + if not layers.has_key(l): + layers[l] = '' - # Comment for debugging - layers[l] += 'G04 id: %s *\n' % str(g.id) + # Comment for debugging + layers[l] += 'G04 id: %s *\n' % str(g.id) - # start Polygon Area Fill code - layers[l] += 'G36*\n' + # start Polygon Area Fill code + layers[l] += 'G36*\n' - # first vertex gets repeated to close the polygon - layers[l] += 'X%sY%sD02\n' % (str(coords[0][1]),str(coords[0][1])) + # first vertex gets repeated to close the polygon + layers[l] += 'X%sY%sD02\n' % (str(coords[0][1]),str(coords[0][1])) - # rest of the vertexes are handled normally - for (x,y) in coords: - layers[l] += 'X%sY%sD01*\n' % (str(x),str(y)) + # rest of the vertexes are handled normally + for (x,y) in coords: + layers[l] += 'X%sY%sD01*\n' % (str(x),str(y)) - layers[l] += 'G37*\n' + layers[l] += 'G37*\n' + elif isinstance(g,Hole): + l = None + # dia is expressed as 0.000 in inches + dia = str(round(g.dia / IN,3)) + try: + l = drill_hits[dia] + except KeyError: + l = [] + drill_hits[dia] = l + l.append(centerof(g)) # add program end markers to all layers for l in layers.keys(): @@ -84,4 +95,30 @@ def to_gerber(elem): %ADD11C,0.0200*% """ + layers[l] + # Create drill layer + drill = [] + drill.append('M48') + drill.append('INCH,TZ') + for n,dia in enumerate(sorted(drill_hits.keys())): + drill.append('T%dC%s' % (n + 11,dia)) + drill.append('%') + + for n,dia in enumerate(sorted(drill_hits.keys())): + drill.append('T%d' % (n + 11)) + for v in drill_hits[dia]: + # Gerber drill file stores drill locations in to 4 decimal points + # in inches, but with the decimal point dropped. + # + # 12.3456 in -> 123456 + # + # Note that there must be exactly six digits, padding with leading + # zeros. + def s(x): + return '%0.6d' % ((x / IN) * 10000) + x = s(v[0,0]) + y = s(v[0,1]) + drill.append('X%sY%s' % (x,y)) + drill.append('M30') + layers['drill'] = '\n'.join(drill) + return layers Tuke/export/gerber.py e7e21fa664b239e2bcc4f272f18d159d39963aea Peter Todd pete@petertodd.org http://github.com/retep/tuke/commit/794fd16409a8a719e5c1ea5b90e8d1d99488088f 794fd16409a8a719e5c1ea5b90e8d1d99488088f 2008-04-28T19:37:02-07:00 2008-04-28T19:37:02-07:00 export.to_gerber() now handles drill hits. 0cc18a7a815376cc9fabca69fb5740fcd4cca0e6 Peter Todd pete@petertodd.org