Cleanup, rendering fixes.

fixed rendering of tented vias
fixed rendering of semi-transparent layers
fixed file type detection issues
added some examples

1 files changed, 38 insertions, 9 deletions

diff --git a/gerber/primitives.py b/gerber/primitives.py
index 24e13a2..fa611df 100644
--- a/gerber/primitives.py
+++ b/gerber/primitives.py
@@ -166,7 +166,6 @@ class Primitive(object):
                                    in zip(self.position,

                                           (x_offset, y_offset))])

 

-

     def _changed(self):

         """ Clear memoized properties.

 

@@ -568,11 +567,11 @@ class Rectangle(Primitive):
 

     @property

     def axis_aligned_width(self):

-        return (self._cos_theta * self.width + self._sin_theta * self.height)

+        return (self._cos_theta * self.width) + (self._sin_theta * self.height)

 

     @property

     def axis_aligned_height(self):

-        return (self._cos_theta * self.height + self._sin_theta * self.width)

+        return (self._cos_theta * self.height) + (self._sin_theta * self.width)

 

 

 class Diamond(Primitive):

@@ -640,25 +639,24 @@ class Diamond(Primitive):
 

     @property

     def axis_aligned_width(self):

-        return (self._cos_theta * self.width + self._sin_theta * self.height)

+        return (self._cos_theta * self.width) + (self._sin_theta * self.height)

 

     @property

     def axis_aligned_height(self):

-        return (self._cos_theta * self.height + self._sin_theta * self.width)

+        return (self._cos_theta * self.height) + (self._sin_theta * self.width)

 

 

 class ChamferRectangle(Primitive):

     """

     """

-

-    def __init__(self, position, width, height, chamfer, corners, **kwargs):

+    def __init__(self, position, width, height, chamfer, corners=None, **kwargs):

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

         validate_coordinates(position)

         self._position = position

         self._width = width

         self._height = height

         self._chamfer = chamfer

-        self._corners = corners

+        self._corners = corners if corners is not None else [True] * 4

         self._to_convert = ['position', 'width', 'height', 'chamfer']

 

     @property

@@ -718,7 +716,37 @@ class ChamferRectangle(Primitive):
 

     @property

     def vertices(self):

-        # TODO

+        if self._vertices is None:

+            vertices = []

+            delta_w = self.width / 2.

+            delta_h = self.height / 2.

+            # order is UR, UL, LL, LR

+            rect_corners = [

+                ((self.position[0] + delta_w), (self.position[1] + delta_h)),

+                ((self.position[0] - delta_w), (self.position[1] + delta_h)),

+                ((self.position[0] - delta_w), (self.position[1] - delta_h)),

+                ((self.position[0] + delta_w), (self.position[1] - delta_h))

+            ]

+            for idx, corner, chamfered in enumerate((rect_corners, self.corners)):

+                x, y = corner

+                if chamfered:

+                    if idx == 0:

+                        vertices.append((x - self.chamfer, y))

+                        vertices.append((x, y - self.chamfer))

+                    elif idx == 1:

+                        vertices.append((x + self.chamfer, y))

+                        vertices.append((x, y - self.chamfer))

+                    elif idx == 2:

+                        vertices.append((x + self.chamfer, y))

+                        vertices.append((x, y + self.chamfer))

+                    elif idx == 3:

+                        vertices.append((x - self.chamfer, y))

+                        vertices.append((x, y + self.chamfer))

+                else:

+                    vertices.append(corner)

+            self._vertices = [((x * self._cos_theta - y * self._sin_theta),

+                               (x * self._sin_theta + y * self._cos_theta))

+                              for x, y in vertices]

         return self._vertices

 

     @property

@@ -1142,3 +1170,4 @@ class TestRecord(Primitive):
         self.position = position

         self.net_name = net_name

         self.layer = layer

+        self._to_convert = ['position']