cad: Add pad numbering for protoboards
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jaseg
parent
d9b3fafa80
commit
60e893c82d
3 changed files with 134 additions and 8 deletions
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@ -80,9 +80,6 @@ class Board:
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warnings.warn(msg)
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elif keepout_errors == 'raise':
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raise KeepoutError(obj, ko, msg)
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else:
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import sys
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#print('skip', obj.bounding_box(MM), ko, file=sys.stderr)
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return
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obj.parent = self
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@ -190,10 +187,16 @@ class ObjectGroup(Positioned):
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bottom_paste: list = field(default_factory=list)
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drill_npth: list = field(default_factory=list)
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drill_pth: list = field(default_factory=list)
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objects: list = field(default_factory=list)
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def render(self, layer_stack):
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x, y, rotation = self.abs_pos
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top, bottom = ('bottom', 'top') if self.side == 'bottom' else ('top', 'bottom')
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for obj in self.objects:
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obj.parent = self
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obj.render(layer_stack)
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for target, source in [
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(layer_stack[top, 'copper'], self.top_copper),
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(layer_stack[top, 'mask'], self.top_mask),
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@ -205,6 +208,7 @@ class ObjectGroup(Positioned):
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(layer_stack[bottom, 'paste'], self.bottom_paste),
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(layer_stack.drill_pth, self.drill_pth),
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(layer_stack.drill_npth, self.drill_npth)]:
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for fe in source:
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fe = copy(fe)
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fe.rotate(rotation)
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@ -237,6 +241,9 @@ class Text(Positioned):
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newstroke_font = Newstroke()
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strokes = list(newstroke_font.render(self.text, size=self.font_size))
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if not strokes:
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return
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xs = [x for points in strokes for x, _y in points]
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ys = [y for points in strokes for _x, y in points]
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min_x, min_y, max_x, max_y = min(xs), min(ys), max(xs), max(ys)
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@ -251,19 +258,25 @@ class Text(Positioned):
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raise ValueError('h_align must be one of "left", "center", or "right".')
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if self.v_align == 'top':
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y0 = -max_y
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y0 = -(max_y - min_y)
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elif self.v_align == 'middle':
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y0 = -max_y/2
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y0 = -(max_y - min_y)/2
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elif self.v_align == 'bottom':
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y0 = 0
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else:
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raise ValueError('v_align must be one of "top", "middle", or "bottom".')
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if self.side == 'bottom':
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x0 += min_x + max_x
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x_sign = -1
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else:
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x_sign = 1
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ap = CircleAperture(self.stroke_width, unit=self.unit)
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for stroke in strokes:
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for (x1, y1), (x2, y2) in zip(stroke[:-1], stroke[1:]):
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obj = Line(x0+x1, y0-y1, x0+x2, y0-y2, aperture=ap, unit=self.unit, polarity_dark=self.polarity_dark)
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obj = Line(x0+x_sign*x1, y0-y1, x0+x_sign*x2, y0-y2, aperture=ap, unit=self.unit, polarity_dark=self.polarity_dark)
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obj.rotate(rotation)
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obj.offset(obj_x, obj_y)
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layer_stack[self.side, self.layer].objects.append(obj)
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@ -2,6 +2,8 @@
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import sys
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import re
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import math
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import string
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import itertools
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from copy import copy, deepcopy
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import warnings
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@ -137,12 +139,51 @@ class TwoSideLayout:
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yield obj
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def numeric(start=1):
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def gen():
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nonlocal start
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for i in itertools.count(start):
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yield str(i)
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return gen
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def alphabetic(case='upper'):
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if case not in ('lower', 'upper'):
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raise ValueError('case must be one of "lower" or "upper".')
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index = string.ascii_lowercase if case == 'lower' else string.ascii_uppercase
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def gen():
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nonlocal index
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for i in itertools.count():
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out = ''
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mod = 26
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while i > 0:
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rem = i % mod
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i //= mod
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mod *= 26
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out = index[rem] + out
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yield out
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return gen
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class PatternProtoArea:
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def __init__(self, pitch_x, pitch_y=None, obj=None, unit=MM):
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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):
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self.pitch_x = pitch_x
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self.pitch_y = pitch_y or pitch_x
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self.obj = obj
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self.unit = unit
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self.numbers = numbers
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self.font_size = font_size or unit(1.5, MM)
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self.font_stroke = font_stroke or unit(0.2, MM)
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self.interval_x = interval_x
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self.interval_y = interval_y or (1 if self.pitch_y > self.font_size*1.2 else 5)
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self.number_x_gen, self.number_y_gen = number_x_gen, number_y_gen
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def fit_size(self, w, h, unit=MM):
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(min_x, min_y), (max_x, max_y) = self.fit_rect(((0, 0), (w, h)))
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@ -163,15 +204,50 @@ class PatternProtoArea:
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def generate(self, bbox, unit=MM):
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(x, y), (w, h) = bbox
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w, h = w-x, h-y
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if self.numbers:
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x += self.font_size
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y += self.font_size
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w -= 2*self.font_size
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h -= 2*self.font_size
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n_x = int(w//unit(self.pitch_x, self.unit))
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n_y = int(h//unit(self.pitch_y, self.unit))
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off_x = (w % unit(self.pitch_x, self.unit)) / 2
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off_y = (h % unit(self.pitch_y, self.unit)) / 2
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if self.numbers:
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for i, lno_i in zip(range(n_y), self.number_x_gen()):
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if (i+1) % self.interval_y == 0:
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t_y = off_y + y + (i + 0.5) * self.pitch_y
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t_x = x
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'right', 'middle', unit=self.unit)
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'right', 'middle', side='bottom', unit=self.unit)
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t_x = x + w
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'left', 'middle', unit=self.unit)
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'left', 'middle', side='bottom', unit=self.unit)
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for i, lno_i in zip(range(n_x), self.number_y_gen()):
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if (i+1) % self.interval_x == 0:
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t_x = off_x + x + (i + 0.5) * self.pitch_x
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t_y = y
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'top', unit=self.unit)
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'top', side='bottom', unit=self.unit)
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t_y = y + h
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'bottom', unit=self.unit)
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yield Text(t_x, t_y, lno_i, self.font_size, self.font_stroke, 'center', 'bottom', side='bottom', unit=self.unit)
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for i in range(n_x):
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for j in range(n_y):
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if hasattr(self.obj, 'inst'):
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inst = self.obj.inst(i, j, i == n_x-1, j == n_y-1)
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if not inst:
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continue
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else:
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inst = copy(self.obj)
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@ -274,6 +350,37 @@ class RFGroundProto(ObjectGroup):
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return inst
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class THTFlowerProto(ObjectGroup):
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def __init__(self, pitch=None, drill=None, diameter=None, unit=MM):
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super().__init__(0, 0, unit=unit)
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self.pitch = pitch = pitch or unit(2.54, MM)
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drill = drill or unit(0.9, MM)
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diameter = diameter or unit(2.0, MM)
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p = pitch / 2
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self.objects.append(THTPad.circle(-p, 0, drill, diameter, paste=False, unit=unit))
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self.objects.append(THTPad.circle( p, 0, drill, diameter, paste=False, unit=unit))
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self.objects.append(THTPad.circle(0, -p, drill, diameter, paste=False, unit=unit))
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self.objects.append(THTPad.circle(0, p, drill, diameter, paste=False, unit=unit))
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middle_ap = CircleAperture(diameter, unit=unit)
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self.top_copper.append(Flash(0, 0, aperture=middle_ap, unit=unit))
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self.bottom_copper = self.top_mask = self.bottom_mask = self.top_copper
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def inst(self, x, y, border_x, border_y):
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if (x % 2 == 0) and (y % 2 == 0):
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return copy(self)
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if (x % 2 == 1) and (y % 2 == 1):
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return copy(self)
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return None
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def bounding_box(self, unit=MM):
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x, y, rotation = self.abs_pos
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p = self.pitch/2
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return unit.convert_bounds_from(self.unit, ((x-p, y-p), (x+p, y+p)))
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class PoweredProto(ObjectGroup):
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def __init__(self, pitch=None, drill=None, clearance=None, power_pad_dia=None, via_size=None, trace_width=None, unit=MM):
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super().__init__(0, 0)
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@ -377,7 +484,10 @@ def _demo():
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#layout = PropLayout([pattern1, stack], 'h', [0.5, 0.5])
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#pattern = PatternProtoArea(2.54, obj=ManhattanPads(2.54))
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#pattern = PatternProtoArea(2.54, obj=PoweredProto())
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pattern = PatternProtoArea(2.54, obj=RFGroundProto())
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#pattern = PatternProtoArea(2.54, obj=RFGroundProto())
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#pattern = PatternProtoArea(2.54*1.5, obj=THTFlowerProto())
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#pattern = PatternProtoArea(2.54, obj=THTPad.circle(0, 0, 0.9, 1.8, paste=False))
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pattern = PatternProtoArea(2.54, obj=PoweredProto())
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pb = ProtoBoard(100, 80, pattern, mounting_hole_dia=3.2, mounting_hole_offset=5)
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print(pb.pretty_svg())
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pb.layer_stack().save_to_directory('/tmp/testdir')
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@ -527,6 +527,9 @@ def point_in_polygon(point, poly):
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def bbox_intersect(a, b):
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if a is None or b is None:
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return False
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(xa_min, ya_min), (xa_max, ya_max) = a
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(xb_min, yb_min), (xb_max, yb_max) = b
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