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-rw-r--r--gerbonara/cad/kicad/footprints.py57
1 files changed, 44 insertions, 13 deletions
diff --git a/gerbonara/cad/kicad/footprints.py b/gerbonara/cad/kicad/footprints.py
index 13cad7d..4066384 100644
--- a/gerbonara/cad/kicad/footprints.py
+++ b/gerbonara/cad/kicad/footprints.py
@@ -400,14 +400,14 @@ class Pad:
return ap.CircleAperture(self.size.x+2*margin, unit=MM)
elif self.shape == Atom.rect:
- if margin:
+ if margin > 0:
return ap.ApertureMacroInstance(GenericMacros.rounded_rect,
[self.size.x+2*margin, self.size.y+2*margin,
margin,
0, 0, # no hole
rotation], unit=MM)
else:
- return ap.RectangleAperture(self.size.x, self.size.y, unit=MM).rotated(rotation)
+ return ap.RectangleAperture(self.size.x+2*margin, self.size.y+2*margin, unit=MM).rotated(rotation)
elif self.shape == Atom.oval:
return ap.ObroundAperture(self.size.x+2*margin, self.size.y+2*margin, unit=MM).rotated(rotation)
@@ -428,11 +428,12 @@ class Pad:
dy = dx
rotation -= math.pi/2
- if not margin:
+ if margin <= 0:
# Note: KiCad already uses MM units, so no conversion needed here.
+ alpha = math.atan(y / (dy/2))
return ap.ApertureMacroInstance(GenericMacros.isosceles_trapezoid,
- [x+dy, y,
+ [x+dy+margin*math.cos(alpha), y+margin,
dy,
0, 0, # no hole
rotation], unit=MM)
@@ -447,26 +448,54 @@ class Pad:
elif self.shape == Atom.roundrect:
x, y = self.size.x, self.size.y
r = min(x, y) * self.roundrect_rratio
- return ap.ApertureMacroInstance(GenericMacros.rounded_rect,
- [x+2*margin, y+2*margin,
- r+margin,
- 0, 0, # no hole
- rotation], unit=MM)
+ if margin > -r:
+ return ap.ApertureMacroInstance(GenericMacros.rounded_rect,
+ [x+2*margin, y+2*margin,
+ r+margin,
+ 0, 0, # no hole
+ rotation], unit=MM)
+ else:
+ return ap.RectangleAperture(x+margin, y+margin, unit=MM).rotated(rotation)
elif self.shape == Atom.custom:
primitives = []
+
# One round trip through the Gerbonara APIs, please!
for obj in self.primitives.all():
for gn_obj in obj.render():
- primitives += gn_obj._aperture_macro_primitives() # todo: precision params
+ if margin and isinstance(gn_obj, (go.Line, go.Arc)):
+ gn_obj = gn_obj.dilated(margin)
+
+ if isinstance(gn_obj, go.Region) and margin > 0:
+ for line in gn_obj.outline_objects(ap.CircleAperture(2*margin, unit=MM)):
+ primitives += line._aperture_macro_primitives()
+
+ new_primitives = list(gn_obj._aperture_macro_primitives()) # todo: precision params
+ primitives += new_primitives
+
+ # inexact, only works with convex shapes. But whatever, the only other way to do this would require
+ # an entire polygon clipping/offsetting library. Probably a bad choice to put something this complex
+ # into a file format.
+ if isinstance(gn_obj, go.Region) and margin < 0:
+ for line in gn_obj.outline_objects(ap.CircleAperture(2*margin, unit=MM)):
+ line.polarity_dark = False
+ primitives += line._aperture_macro_primitives()
if self.options:
if self.options.anchor == Atom.rect and self.size.x > 0 and self.size.y > 0:
- primitives.append(amp.CenterLine(MM, [1, self.size.x, self.size.y, 0, 0, 0]))
+ if margin <= 0:
+ primitives.append(amp.CenterLine(MM, [1, self.size.x+2*margin, self.size.y+2*margin, 0, 0, 0]))
- elif self.options.anchor == Atom.circle and self.size.x > 0:
- primitives.append(amp.Circle(MM, [1, self.size.x, 0, 0, 0]))
+ else: # margin > 0
+ primitives.append(amp.CenterLine(MM, [1, self.size.x+2*margin, self.size.y, 0, 0, 0]))
+ primitives.append(amp.CenterLine(MM, [1, self.size.x, self.size.y+2*margin, 0, 0, 0]))
+ primitives.append(amp.Circle(MM, [1, 2*margin, -self.size.x/2, -self.size.y/2]))
+ primitives.append(amp.Circle(MM, [1, 2*margin, -self.size.x/2, +self.size.y/2]))
+ primitives.append(amp.Circle(MM, [1, 2*margin, +self.size.x/2, -self.size.y/2]))
+ primitives.append(amp.Circle(MM, [1, 2*margin, +self.size.x/2, +self.size.y/2]))
+ elif self.options.anchor == Atom.circle and self.size.x > 0:
+ primitives.append(amp.Circle(MM, [1, self.size.x+2*margin, 0, 0, 0]))
macro = ApertureMacro(primitives=primitives).rotated(rotation)
return ap.ApertureMacroInstance(macro, unit=MM)
@@ -686,6 +715,8 @@ LAYER_MAP_K2G = {
'F.CrtYd': ('top', 'courtyard'),
'B.Fab': ('bottom', 'fabrication'),
'F.Fab': ('top', 'fabrication'),
+ 'B.Adhes': ('bottom', 'adhesive'),
+ 'F.Adhes': ('top', 'adhesive'),
'Dwgs.User': ('mechanical', 'drawings'),
'Cmts.User': ('mechanical', 'comments'),
'Edge.Cuts': ('mechanical', 'outline'),