Add PCB interface

this incorporates some of @chintal's layers.py changes
PCB.from_directory() simplifies loading of multiple gerbers
the PCB() class should be pretty helpful going forward...

the context classes could use some cleaning up, although I'd like to wait until the freecad stuff gets merged, that way we can try to refactor the context base to support more use cases

1 files changed, 3 insertions, 0 deletions

diff --git a/gerber/common.py b/gerber/common.py
index f8979dc..04b6423 100644
--- a/gerber/common.py
+++ b/gerber/common.py
@@ -17,6 +17,7 @@
 
 from . import rs274x
 from . import excellon
+from . import ipc356
 from .exceptions import ParseError
 from .utils import detect_file_format
 
@@ -43,6 +44,8 @@ def read(filename):
         return rs274x.read(filename)
     elif fmt == 'excellon':
         return excellon.read(filename)
+    elif fmt == 'ipc_d_356':
+        return ipc356.read(filename)
     else:
         raise ParseError('Unable to detect file format')