Basic KiCad footprint rendering works

2 files changed, 20 insertions, 2 deletions

diff --git a/gerbonara/aperture_macros/parse.py b/gerbonara/aperture_macros/parse.py
index f0ff8d6..868f7ae 100644
--- a/gerbonara/aperture_macros/parse.py
+++ b/gerbonara/aperture_macros/parse.py
@@ -178,6 +178,17 @@ class GenericMacros:
         ap.Circle('mm', [1, var(3)*2, -(var(1)/2-var(3)), -(var(2)/2-var(3)), 0]),
         *_generic_hole(4)])
 
+    # params: width, height, length difference between narrow side (top) and wide side (bottom), *hole, rotation
+    isosceles_trapezoid = ApertureMacro('GTR', [
+        ap.Outline('mm', [1, 4,
+                          var(1)/-2,            var(2)/-2,
+                          var(1)/-2+var(3)/2,   var(2)/2,
+                          var(1)/2-var(3)/2,    var(2)/2,
+                          var(1)/2,             var(2)/-2,
+                          var(1)/-2,            var(2)/-2,
+                          var(6) * -deg_per_rad]),
+        *_generic_hole(4)])
+
     # w must be larger than h
     obround = ApertureMacro('GNO', [
         ap.CenterLine('mm', [1, var(1), var(2), 0, 0, var(5) * -deg_per_rad]),
diff --git a/gerbonara/aperture_macros/primitive.py b/gerbonara/aperture_macros/primitive.py
index f9b5a78..5b93971 100644
--- a/gerbonara/aperture_macros/primitive.py
+++ b/gerbonara/aperture_macros/primitive.py
@@ -11,6 +11,7 @@ import math
 from .expression import Expression, UnitExpression, ConstantExpression, expr
 
 from .. import graphic_primitives as gp
+from .. import graphic_objects as go
 
 
 def point_distance(a, b):
@@ -18,8 +19,13 @@ def point_distance(a, b):
     x2, y2 = b
     return math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
 
+
 def deg_to_rad(a):
-    return (a / 180) * math.pi
+    return a * (math.pi / 180)
+
+def rad_to_deg(a):
+    return a * (180 / math.pi)
+
 
 class Primitive:
     def __init__(self, unit, args):
@@ -240,7 +246,7 @@ class Outline(Primitive):
         self.exposure = args.pop(0)
 
         # length arg must not contain variables (that would not make sense)
-        length_arg = args.pop(0).calculate()
+        length_arg = (args.pop(0) * ConstantExpression(1)).calculate()
 
         if length_arg != len(args)//2-1:
             raise ValueError(f'Invalid aperture macro outline primitive, given size {length_arg} does not match length of coordinate list({len(args)//2-1}).')
@@ -290,6 +296,7 @@ class Comment:
     def scale(self, scale):
         pass
 
+
 PRIMITIVE_CLASSES = {
     **{cls.code: cls for cls in [
         Comment,