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-rw-r--r--gerbonara/cad/breakout.py100
-rw-r--r--gerbonara/cad/primitives.py3
2 files changed, 102 insertions, 1 deletions
diff --git a/gerbonara/cad/breakout.py b/gerbonara/cad/breakout.py
new file mode 100644
index 0000000..fae06c9
--- /dev/null
+++ b/gerbonara/cad/breakout.py
@@ -0,0 +1,100 @@
+
+from dataclasses import dataclass
+
+from ..utils import MM
+from .primitives import *
+
+
+@dataclass
+class PadRing(Positioned):
+ w: int
+ h: int
+ pitch: float = 2.54
+ clearance: float = 0.2
+ rows: int = 2
+ trace_width: float = 0.4
+ drill_dia: float = 0.9
+ stagger: bool = False
+
+ def ports(self):
+ x, y, rotation = self.abs_pos
+
+ x += self.pitch/2
+ y += self.pitch/2
+
+ x += self.pitch * self.rows
+ y += self.pitch * self.rows
+
+ pad_dia = self.pitch - 2*self.clearance - self.trace_width
+ offset = pad_dia/2 - self.trace_width/2
+
+ for i in range(1, self.w):
+ yield (x+self.pitch/2 + i*self.pitch, y+offset)
+ yield (x+self.pitch/2 + i*self.pitch, y+(self.h+1)*self.pitch-offset)
+
+ for i in range(1, self.h):
+ yield (x+offset, y+self.pitch/2 + i*self.pitch)
+ yield (x+(self.w+1)*self.pitch-offset, y+self.pitch/2 + i*self.pitch)
+
+
+ def generate(self, bbox, border_text, unit=MM):
+ x, y, rotation = self.abs_pos
+
+ x += self.pitch/2
+ y += self.pitch/2
+
+ x += self.pitch * self.rows
+ y += self.pitch * self.rows
+
+ pad_dia = self.pitch - 2*self.clearance - self.trace_width
+
+ for i in range(self.w + 2 + 2*(self.rows-1)):
+ for j in range(self.rows):
+ yield THTPad.circle(x + (i - (self.rows - 1))*self.pitch, y - j*self.pitch, self.drill_dia, pad_dia, paste=False)
+ yield THTPad.circle(x + (i - (self.rows - 1))*self.pitch, y + (self.h + 1 + j)*self.pitch, self.drill_dia, pad_dia, paste=False)
+
+ if self.rows >= 2 and 1 <= i < self.w:
+ yield Trace(self.trace_width, start=(x+i*self.pitch, y-self.pitch), end=(x+(i + 0.5)*self.pitch, y+pad_dia/2 - self.trace_width/2))
+ yield Trace(self.trace_width, start=(x+i*self.pitch, y+(self.h+2)*self.pitch), end=(x+(i + 0.5)*self.pitch, y+(self.h+1)*self.pitch -pad_dia/2 + self.trace_width/2), orientation=('cw',))
+
+ for i in range(1, self.h+1):
+ for j in range(self.rows):
+ yield THTPad.circle(x - j*self.pitch, y + i*self.pitch, self.drill_dia, pad_dia, paste=False)
+ yield THTPad.circle(x + (self.w + 1 + j)*self.pitch, y + i*self.pitch, self.drill_dia, pad_dia, paste=False)
+
+ if self.rows >= 2 and i < self.h:
+ yield Trace(self.trace_width,
+ start=(
+ x-self.pitch,
+ y+i*self.pitch),
+ end=(
+ x+pad_dia/2 - self.trace_width/2,
+ y+(i + 0.5)*self.pitch),
+ orientation=('cw',))
+ yield Trace(self.trace_width,
+ start=(
+ x+(self.w+2)*self.pitch,
+ y+i*self.pitch),
+ end=(
+ x+(self.w+1)*self.pitch -pad_dia/2 + self.trace_width/2,
+ y+(i + 0.5)*self.pitch))
+
+
+def _breakout_demo():
+ b = Board(100, 80)
+
+ ring = PadRing(5, 5, 8, 12)
+ for obj in ring.generate(None, None):
+ b.add(obj)
+
+ for x, y in ring.ports():
+ b.add(Trace(0.1, start=(23, 27), end=(x, y)))
+
+ with open('/tmp/test.svg', 'w') as f:
+ f.write(str(b.pretty_svg()))
+ b.layer_stack().save_to_directory('/tmp/testdir')
+
+
+if __name__ == '__main__':
+ _breakout_demo()
+
diff --git a/gerbonara/cad/primitives.py b/gerbonara/cad/primitives.py
index 9a9a373..ff2518c 100644
--- a/gerbonara/cad/primitives.py
+++ b/gerbonara/cad/primitives.py
@@ -480,8 +480,9 @@ class Trace:
end: object = None
waypoints: [(float, float)] = field(default_factory=list)
style: str = 'oblique'
- orientation: [str] = tuple() # 'top' or 'bottom'
+ orientation: [str] = tuple() # 'cw' or 'ccw'
roundover: float = 0
+ side: str = 'top'
unit: LengthUnit = MM
parent: object = None