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authorjaseg <git@jaseg.de>2023-04-05 17:44:31 +0200
committerjaseg <git@jaseg.de>2023-04-10 23:57:15 +0200
commit60e893c82d9c1c00bfbaf2cb5121098ccda88fe7 (patch)
treeaaf26a56e64f1af3131e3118aa8c4800d35d5aa4 /gerbonara
parentd9b3fafa806722efbbf838a54329902554155d3d (diff)
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cad: Add pad numbering for protoboards
Diffstat (limited to 'gerbonara')
-rw-r--r--gerbonara/cad/primitives.py25
-rw-r--r--gerbonara/cad/protoboard.py114
-rw-r--r--gerbonara/utils.py3
3 files changed, 134 insertions, 8 deletions
diff --git a/gerbonara/cad/primitives.py b/gerbonara/cad/primitives.py
index 9000910..78fc238 100644
--- a/gerbonara/cad/primitives.py
+++ b/gerbonara/cad/primitives.py
@@ -80,9 +80,6 @@ class Board:
warnings.warn(msg)
elif keepout_errors == 'raise':
raise KeepoutError(obj, ko, msg)
- else:
- import sys
- #print('skip', obj.bounding_box(MM), ko, file=sys.stderr)
return
obj.parent = self
@@ -190,10 +187,16 @@ class ObjectGroup(Positioned):
bottom_paste: list = field(default_factory=list)
drill_npth: list = field(default_factory=list)
drill_pth: list = field(default_factory=list)
+ objects: list = field(default_factory=list)
def render(self, layer_stack):
x, y, rotation = self.abs_pos
top, bottom = ('bottom', 'top') if self.side == 'bottom' else ('top', 'bottom')
+
+ for obj in self.objects:
+ obj.parent = self
+ obj.render(layer_stack)
+
for target, source in [
(layer_stack[top, 'copper'], self.top_copper),
(layer_stack[top, 'mask'], self.top_mask),
@@ -205,6 +208,7 @@ class ObjectGroup(Positioned):
(layer_stack[bottom, 'paste'], self.bottom_paste),
(layer_stack.drill_pth, self.drill_pth),
(layer_stack.drill_npth, self.drill_npth)]:
+
for fe in source:
fe = copy(fe)
fe.rotate(rotation)
@@ -237,6 +241,9 @@ class Text(Positioned):
newstroke_font = Newstroke()
strokes = list(newstroke_font.render(self.text, size=self.font_size))
+ if not strokes:
+ return
+
xs = [x for points in strokes for x, _y in points]
ys = [y for points in strokes for _x, y in points]
min_x, min_y, max_x, max_y = min(xs), min(ys), max(xs), max(ys)
@@ -251,19 +258,25 @@ class Text(Positioned):
raise ValueError('h_align must be one of "left", "center", or "right".')
if self.v_align == 'top':
- y0 = -max_y
+ y0 = -(max_y - min_y)
elif self.v_align == 'middle':
- y0 = -max_y/2
+ y0 = -(max_y - min_y)/2
elif self.v_align == 'bottom':
y0 = 0
else:
raise ValueError('v_align must be one of "top", "middle", or "bottom".')
+ if self.side == 'bottom':
+ x0 += min_x + max_x
+ x_sign = -1
+ else:
+ x_sign = 1
+
ap = CircleAperture(self.stroke_width, unit=self.unit)
for stroke in strokes:
for (x1, y1), (x2, y2) in zip(stroke[:-1], stroke[1:]):
- obj = Line(x0+x1, y0-y1, x0+x2, y0-y2, aperture=ap, unit=self.unit, polarity_dark=self.polarity_dark)
+ obj = Line(x0+x_sign*x1, y0-y1, x0+x_sign*x2, y0-y2, aperture=ap, unit=self.unit, polarity_dark=self.polarity_dark)
obj.rotate(rotation)
obj.offset(obj_x, obj_y)
layer_stack[self.side, self.layer].objects.append(obj)
diff --git a/gerbonara/cad/protoboard.py b/gerbonara/cad/protoboard.py
index 9eaabed..4a66b67 100644
--- a/gerbonara/cad/protoboard.py
+++ b/gerbonara/cad/protoboard.py
@@ -2,6 +2,8 @@
import sys
import re
import math
+import string
+import itertools
from copy import copy, deepcopy
import warnings
@@ -137,12 +139,51 @@ class TwoSideLayout:
yield obj
+def numeric(start=1):
+ def gen():
+ nonlocal start
+ for i in itertools.count(start):
+ yield str(i)
+
+ return gen
+
+
+def alphabetic(case='upper'):
+ if case not in ('lower', 'upper'):
+ raise ValueError('case must be one of "lower" or "upper".')
+
+ index = string.ascii_lowercase if case == 'lower' else string.ascii_uppercase
+
+ def gen():
+ nonlocal index
+
+ for i in itertools.count():
+ out = ''
+ mod = 26
+
+ while i > 0:
+ rem = i % mod
+ i //= mod
+ mod *= 26
+ out = index[rem] + out
+
+ yield out
+
+ return gen
+
+
class PatternProtoArea:
- def __init__(self, pitch_x, pitch_y=None, obj=None, unit=MM):
+ def __init__(self, pitch_x, pitch_y=None, obj=None, numbers=True, font_size=None, font_stroke=None, number_x_gen=alphabetic(), number_y_gen=numeric(), interval_x=5, interval_y=None, unit=MM):
self.pitch_x = pitch_x
self.pitch_y = pitch_y or pitch_x
self.obj = obj
self.unit = unit
+ self.numbers = numbers
+ self.font_size = font_size or unit(1.5, MM)
+ self.font_stroke = font_stroke or unit(0.2, MM)
+ self.interval_x = interval_x
+ self.interval_y = interval_y or (1 if self.pitch_y > self.font_size*1.2 else 5)
+ self.number_x_gen, self.number_y_gen = number_x_gen, number_y_gen
def fit_size(self, w, h, unit=MM):
(min_x, min_y), (max_x, max_y) = self.fit_rect(((0, 0), (w, h)))
@@ -163,15 +204,50 @@ class PatternProtoArea:
def generate(self, bbox, unit=MM):
(x, y), (w, h) = bbox
w, h = w-x, h-y
+
+ if self.numbers:
+ x += self.font_size
+ y += self.font_size
+ w -= 2*self.font_size
+ h -= 2*self.font_size
+
n_x = int(w//unit(self.pitch_x, self.unit))
n_y = int(h//unit(self.pitch_y, self.unit))
off_x = (w % unit(self.pitch_x, self.unit)) / 2
off_y = (h % unit(self.pitch_y, self.unit)) / 2
+ if self.numbers:
+ for i, lno_i in zip(range(n_y), self.number_x_gen()):
+ if (i+1) % self.interval_y == 0:
+ t_y = off_y + y + (i + 0.5) * self.pitch_y
+
+ t_x = x
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'right', 'middle', unit=self.unit)
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'right', 'middle', side='bottom', unit=self.unit)
+
+ t_x = x + w
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'left', 'middle', unit=self.unit)
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'left', 'middle', side='bottom', unit=self.unit)
+
+ for i, lno_i in zip(range(n_x), self.number_y_gen()):
+ if (i+1) % self.interval_x == 0:
+ t_x = off_x + x + (i + 0.5) * self.pitch_x
+
+ t_y = y
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'top', unit=self.unit)
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'top', side='bottom', unit=self.unit)
+
+ t_y = y + h
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'bottom', unit=self.unit)
+ yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'bottom', side='bottom', unit=self.unit)
+
+
for i in range(n_x):
for j in range(n_y):
if hasattr(self.obj, 'inst'):
inst = self.obj.inst(i, j, i == n_x-1, j == n_y-1)
+ if not inst:
+ continue
else:
inst = copy(self.obj)
@@ -274,6 +350,37 @@ class RFGroundProto(ObjectGroup):
return inst
+class THTFlowerProto(ObjectGroup):
+ def __init__(self, pitch=None, drill=None, diameter=None, unit=MM):
+ super().__init__(0, 0, unit=unit)
+ self.pitch = pitch = pitch or unit(2.54, MM)
+ drill = drill or unit(0.9, MM)
+ diameter = diameter or unit(2.0, MM)
+
+ p = pitch / 2
+ self.objects.append(THTPad.circle(-p, 0, drill, diameter, paste=False, unit=unit))
+ self.objects.append(THTPad.circle( p, 0, drill, diameter, paste=False, unit=unit))
+ self.objects.append(THTPad.circle(0, -p, drill, diameter, paste=False, unit=unit))
+ self.objects.append(THTPad.circle(0, p, drill, diameter, paste=False, unit=unit))
+
+ middle_ap = CircleAperture(diameter, unit=unit)
+ self.top_copper.append(Flash(0, 0, aperture=middle_ap, unit=unit))
+ self.bottom_copper = self.top_mask = self.bottom_mask = self.top_copper
+
+ def inst(self, x, y, border_x, border_y):
+ if (x % 2 == 0) and (y % 2 == 0):
+ return copy(self)
+
+ if (x % 2 == 1) and (y % 2 == 1):
+ return copy(self)
+
+ return None
+
+ def bounding_box(self, unit=MM):
+ x, y, rotation = self.abs_pos
+ p = self.pitch/2
+ return unit.convert_bounds_from(self.unit, ((x-p, y-p), (x+p, y+p)))
+
class PoweredProto(ObjectGroup):
def __init__(self, pitch=None, drill=None, clearance=None, power_pad_dia=None, via_size=None, trace_width=None, unit=MM):
super().__init__(0, 0)
@@ -377,7 +484,10 @@ def _demo():
#layout = PropLayout([pattern1, stack], 'h', [0.5, 0.5])
#pattern = PatternProtoArea(2.54, obj=ManhattanPads(2.54))
#pattern = PatternProtoArea(2.54, obj=PoweredProto())
- pattern = PatternProtoArea(2.54, obj=RFGroundProto())
+ #pattern = PatternProtoArea(2.54, obj=RFGroundProto())
+ #pattern = PatternProtoArea(2.54*1.5, obj=THTFlowerProto())
+ #pattern = PatternProtoArea(2.54, obj=THTPad.circle(0, 0, 0.9, 1.8, paste=False))
+ pattern = PatternProtoArea(2.54, obj=PoweredProto())
pb = ProtoBoard(100, 80, pattern, mounting_hole_dia=3.2, mounting_hole_offset=5)
print(pb.pretty_svg())
pb.layer_stack().save_to_directory('/tmp/testdir')
diff --git a/gerbonara/utils.py b/gerbonara/utils.py
index 47fb178..ce5425a 100644
--- a/gerbonara/utils.py
+++ b/gerbonara/utils.py
@@ -527,6 +527,9 @@ def point_in_polygon(point, poly):
def bbox_intersect(a, b):
+ if a is None or b is None:
+ return False
+
(xa_min, ya_min), (xa_max, ya_max) = a
(xb_min, yb_min), (xb_max, yb_max) = b