Fix a bunch of rendering bugs.

  - 'clear' polarity primitives no longer erase background
  - Added aperture macro support for polygons
  - Added aperture macro rendring support
  - Renderer now creates a new surface for each layer and merges them instead of working
    directly on a single surface
  - Updated examples accordingly

1 files changed, 6 insertions, 1 deletions

diff --git a/gerber/layers.py b/gerber/layers.py
index 2b73893..29e452b 100644
--- a/gerber/layers.py
+++ b/gerber/layers.py
@@ -95,7 +95,8 @@ def sort_layers(layers):
                    'bottompaste', 'drill', ]

     output = []

     drill_layers = [layer for layer in layers if layer.layer_class == 'drill']

-    internal_layers = list(sorted([layer for layer in layers if layer.layer_class == 'internal']))

+    internal_layers = list(sorted([layer for layer in layers

+                                   if layer.layer_class == 'internal']))

 

     for layer_class in layer_order:

         if layer_class == 'internal':

@@ -151,6 +152,8 @@ class PCBLayer(object):
         else:

             return None

 

+    def __repr__(self):

+        return '<PCBLayer: {}>'.format(self.layer_class)

 

 class DrillLayer(PCBLayer):

     @classmethod

@@ -163,6 +166,7 @@ class DrillLayer(PCBLayer):
 

 

 class InternalLayer(PCBLayer):

+

     @classmethod

     def from_gerber(cls, camfile):

         filename = camfile.filename

@@ -208,6 +212,7 @@ class InternalLayer(PCBLayer):
 

 

 class LayerSet(object):

+

     def __init__(self, name, layers, **kwargs):

         super(LayerSet, self).__init__(**kwargs)

         self.name = name