diff options
Diffstat (limited to 'gerber')
| -rw-r--r-- | gerber/ipc356.py | 134 |
1 files changed, 109 insertions, 25 deletions
diff --git a/gerber/ipc356.py b/gerber/ipc356.py index 1762480..97d0bbd 100644 --- a/gerber/ipc356.py +++ b/gerber/ipc356.py @@ -27,6 +27,9 @@ _NNAME = re.compile(r'^NNAME\d+$') # Board Edge Coordinates _COORD = re.compile(r'X?(?P<x>[\d\s]*)?Y?(?P<y>[\d\s]*)?') +_SM_FIELD = {'0': 'none', '1': 'primary side', '2': 'secondary side', '3': 'both'} + + def read(filename): """ Read data from filename and return an IPC_D_356 @@ -81,8 +84,19 @@ class IPC_D_356(CamFile): @property def nets(self): - return list(set([rec.net_name for rec in self.test_records - if rec.net_name is not None])) + nets = [] + for net in list(set([rec.net_name for rec in self.test_records + if rec.net_name is not None])): + adjacent_nets = set() + for record in self.adjacency_records: + if record.net == net: + adjacent_nets = adjacent_nets.update(record.adjacent_nets) + elif net in record.adjacent_nets: + adjacent_nets.add(record.net) + nets.append(IPC356_Net(net, adjacent_nets)) + return nets + + @property def components(self): @@ -94,14 +108,17 @@ class IPC_D_356(CamFile): return [rec.id for rec in self.test_records if rec.id == 'VIA'] @property - def board_outline(self): - outline = [stmt for stmt in self.statements if isinstance(stmt, IPC356_BoardEdge)] - if len(outline): - return outline[0].points - else: - return None + def outlines(self): + return [stmt for stmt in self.statements + if isinstance(stmt, IPC356_Outline)] + + @property + def adjacency_records(self): + return [record for record in self.statements + if isinstance(record, IPC356_Adjacency)] + def render(self, ctx, layer='both', filename=None): for p in self.primitives: if layer == 'both' and p.layer in ('top', 'bottom', 'both'): @@ -182,12 +199,17 @@ class IPC_D_356_Parser(object): record.net_name = self.nnames[record.net_name] self.statements.append(record) + elif line[0:3] == '378': + # Conductor + self.statements.append(IPC356_Conductor.from_line(line, self.settings)) + elif line[0:3] == '379': - # Net Adjacency Info - pass + # Net Adjacency + self.statements.append(IPC356_Adjacency.from_line(line)) + elif line[0:3] == '389': - # Altium Board Edge Info - self.statements.append(IPC356_BoardEdge.from_line(line, self.settings)) + # Outline + self.statements.append(IPC356_Outline.from_line(line, self.settings)) class IPC356_Comment(object): @@ -296,7 +318,8 @@ class IPC356_TestRecord(object): if len(line) >= 74: end = len(line) - 1 if len(line) < 75 else 74 - record['soldermask_info'] = line[73:74].strip() + sm_info = line[73:74].strip() + record['soldermask_info'] = _SM_FIELD.get(sm_info) if len(line) >= 76: end = len(line) - 1 if len(line < 80) else 79 @@ -309,13 +332,14 @@ class IPC356_TestRecord(object): setattr(self, key, kwargs[key]) def __repr__(self): - return '<IPC-D-356 Test Record: Net: %s Type: %s>' % (self.net_name, + return '<IPC-D-356 %s Test Record: %s>' % (self.net_name, self.feature_type) -class IPC356_BoardEdge(object): +class IPC356_Outline(object): @classmethod def from_line(cls, line, settings): + type = line[3:17].strip() scale = 0.0001 if settings.units == 'inch' else 0.001 points = [] x = 0 @@ -326,27 +350,78 @@ class IPC356_BoardEdge(object): x = int(coord_dict['x']) if coord_dict['x'] is not '' else x y = int(coord_dict['y']) if coord_dict['y'] is not '' else y points.append((x * scale, y * scale)) - return cls(points) + return cls(type, points) - def __init__(self, points): + def __init__(self, type, points): + self.type = type self.points = points def __repr__(self): - return '<IPC-D-356 Board Edge Definition>' + return '<IPC-D-356 %s Outline Definition>' % self.type + + +class IPC356_Conductor(object): + @classmethod + def from_line(cls, line, settings): + if line[0:3] != '378': + raise ValueError('Not a valid IPC-D-356 Conductor statement') + + scale = 0.0001 if settings.units == 'inch' else 0.001 + net_name = line[3:17].strip() + layer = int(line[19:21]) + + # Parse out aperture definiting + raw_aperture = line[22:].split()[0] + aperture_dict = _COORD.match(raw_aperture).groupdict() + x = 0 + y = 0 + x = int(aperture_dict['x']) * scale if aperture_dict['x'] is not '' else None + y = int(aperture_dict['y']) * scale if aperture_dict['y'] is not '' else None + aperture = (x, y) + + # Parse out conductor shapes + shapes = [] + coord_list = ' '.join(line[22:].split()[1:]) + raw_shapes = coord_list.split('*') + for rshape in raw_shapes: + x = 0 + y = 0 + shape = [] + coords = rshape.split() + for coord in coords: + coord_dict = _COORD.match(coord).groupdict() + x = int(coord_dict['x']) if coord_dict['x'] is not '' else x + y = int(coord_dict['y']) if coord_dict['y'] is not '' else y + shape.append((x * scale, y * scale)) + shapes.append(tuple(shape)) + return cls(net_name, layer, aperture, tuple(shapes)) + + def __init__(self, net_name, layer, aperture, shapes): + self.net_name = net_name + self.layer = layer + self.aperture = aperture + self.shapes = shapes + + def __repr__(self): + return '<IPC-D-356 %s Conductor Record>' % self.net_name class IPC356_Adjacency(object): @classmethod def from_line(cls, line): - nets = line.strip().split()[1:] - return cls(nets) - - def __init__(self, nets): - self.nets = nets - + if line[0:3] != '379': + raise ValueError('Not a valid IPC-D-356 Conductor statement') + nets = line[3:].strip().split() + + return cls(nets[0], nets[1:]) + + def __init__(self, net, adjacent_nets): + self.net = net + self.adjacent_nets = adjacent_nets + def __repr__(self): - return '<IPC-D-356 Adjacency Record>' + return '<IPC-D-356 %s Adjacency Record>' % self.net class IPC356_EndOfFile(object): @@ -358,3 +433,12 @@ class IPC356_EndOfFile(object): def __repr__(self): return '<IPC-D-356 EOF>' + +class IPC356_Net(object): + def __init__(self, name, adjacent_nets): + self.name = name + self.adjacent_nets = set(adjacent_nets) if adjacent_nets is not None else set() + + + def __repr__(self): + return '<IPC-D-356 Net %s>' % self.name |