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protoboard: add mounting holes

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jaseg 2022-06-19 21:02:47 +02:00
parent 4b83ec29de
commit e3d8c3a063
1 changed files with 23 additions and 12 deletions
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35
gerbolyze/protoboard.py
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@ -19,11 +19,11 @@ class Pattern:
{svg_str(self.content)}
</pattern>''')
def make_rect(svg_id, x, y, w, h):
def make_rect(svg_id, x, y, w, h, clip=''):
#import random
#c = random.randint(0, 2**24)
#return f'<rect x="{x}" y="{y}" width="{w}" height="{h}" fill="#{c:06x}"/>'
return f'<rect x="{x}" y="{y}" width="{w}" height="{h}" fill="url(#{svg_id})"/>'
return f'<rect x="{x}" y="{y}" width="{w}" height="{h}" {clip} fill="url(#{svg_id})"/>'
class CirclePattern(Pattern):
def __init__(self, d, w, h=None):
@ -92,22 +92,22 @@ class THTProtoAreaCircles(PatternProtoArea):
self.plated = plated
self.sides = sides
def generate(self, x, y, w, h, center=True):
def generate(self, x, y, w, h, center=True, clip=''):
x, y, w, h = self.fit_rect(x, y, w, h, center)
drill = 'plated drill' if self.plated else 'nonplated drill'
pad_id = str(uuid.uuid4())
drill_id = str(uuid.uuid4())
d = { drill: make_rect(drill_id, x, y, w, h),
d = { drill: make_rect(drill_id, x, y, w, h, clip),
'defs': [
self.pad_pattern.svg_def(pad_id, x, y),
self.drill_pattern.svg_def(drill_id, x, y)]}
if self.sides in ('top', 'both'):
d['top copper'] = make_rect(pad_id, x, y, w, h)
d['top copper'] = make_rect(pad_id, x, y, w, h, clip)
if self.sides in ('bottom', 'both'):
d['bottom copper'] = make_rect(pad_id, x, y, w, h)
d['bottom copper'] = make_rect(pad_id, x, y, w, h, clip)
return d
@ -129,20 +129,31 @@ LAYERS = [
]
class ProtoBoard:
def __init__(self, defs, expr):
def __init__(self, defs, expr, mounting_holes=None):
self.defs = eval_defs(defs)
self.layout = parse_layout(expr)
self.mounting_holes = mounting_holes
def generate(self, w, h):
svg_defs = []
clip = ''
if self.mounting_holes:
d, o, k = self.mounting_holes # diameter, offset from edge, keepout to proto area
q = o + k
clip_d = f'M 0 {q} L {q} {q} L {q} 0 L {w-q} 0 L {w-q} {q} L {w} {q} L {w} {h-q} L {w-q} {h-q} L {w-q} {h} L {q} {h} L {q} {h-q} L 0 {h-q} Z'
svg_defs.append(f'<clipPath id="hole-clip"><path d="{clip_d}"/></clipPath>')
clip = 'clip-path="url(#hole-clip)"'
out = {l: [] for l in LAYERS}
for layer_dict in self.layout.generate(0, 0, w, h, self.defs):
for layer_dict in self.layout.generate(0, 0, w, h, self.defs, clip):
for l in LAYERS:
if l in layer_dict:
out[l].append(layer_dict[l])
svg_defs += layer_dict.get('defs', [])
out['outline'] = f'<rect x="0" y="0" width="{w}" height="{h}" fill="none" stroke="black" stroke-width="0.1mm"/>'
layers = [ make_layer(l, out[l]) for l in LAYERS ]
return svg_template.format(w=w, h=h, defs='\n'.join(svg_defs), layers='\n'.join(layers))
@ -176,13 +187,13 @@ class PropLayout:
if len(content) != len(proportions):
raise ValueError('proportions and content must have same length')
def generate(self, x, y, w, h, defs):
def generate(self, x, y, w, h, defs, clip=''):
for (c_x, c_y, c_w, c_h), child in self.layout_2d(x, y, w, h):
if isinstance(child, str):
yield defs[child].generate(c_x, c_y, c_w, c_h, defs)
yield defs[child].generate(c_x, c_y, c_w, c_h, defs, clip)
else:
yield from child.generate(c_x, c_y, c_w, c_h, defs)
yield from child.generate(c_x, c_y, c_w, c_h, defs, clip)
def layout_2d(self, x, y, w, h):
for l, child in zip(self.layout(w if self.direction == 'h' else h), self.content):
@ -341,5 +352,5 @@ if __name__ == '__main__':
# print(line, '->', eval_defs(line))
# print()
# print('===== Proto board =====')
b = ProtoBoard('tht = THTCircles()', 'tht@1in|(tht@2/tht@1)')
b = ProtoBoard('tht = THTCircles()', 'tht@1in|(tht@2/tht@1)', mounting_holes=(3.2, 5.0, 5.0))
print(b.generate(80, 60))