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Make SVG export even smaller

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This commit is contained in:
jaseg 2023-04-06 16:41:10 +02:00
parent 0dcd281406
commit 6fe3def9d6
4 changed files with 33 additions and 11 deletions
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1
gerbonara/cad/protoboard.py
View file

@ -287,7 +287,6 @@ class EmptyProtoArea:
group = ObjectGroup(0, 0, top_copper=[Region([(min_x, min_y), (max_x, min_y), (max_x, max_y), (min_x, max_y)],
unit=unit, polarity_dark=True)])
group.bounding_box = lambda *args, **kwargs: None
print('adding', self, bbox, group.bounding_box(), file=sys.stderr)
yield group
@property

4
gerbonara/cam.py
View file

@ -249,7 +249,9 @@ class Polyline:
(x0, y0), *rest = self.coords
d = f'M {float(x0):.6} {float(y0):.6} ' + ' '.join(f'L {float(x):.6} {float(y):.6}' for x, y in rest)
width = f'{self.width:.6}' if not math.isclose(self.width, 0) else '0.01mm'
return tag('path', d=d, style=f'fill: none; stroke: {color}; stroke-width: {float(width):.6}; stroke-linejoin: round; stroke-linecap: round')
return tag('path', d=d,
fill='none', stroke=color,
stroke_width=f'{float(width):.6}')
class CamFile:

4
gerbonara/graphic_primitives.py
View file

@ -189,7 +189,7 @@ class Line(GraphicPrimitive):
color = fg if self.polarity_dark else bg
width = f'{self.width:.6}' if not math.isclose(self.width, 0) else '0.01mm'
return tag('path', d=f'M {float(self.x1):.6} {float(self.y1):.6} L {float(self.x2):.6} {float(self.y2):.6}',
fill='none', stroke=color, stroke_width=str(width), stroke_linecap='round')
fill='none', stroke=color, stroke_width=str(width))
@dataclass(frozen=True)
class Arc(GraphicPrimitive):
@ -241,7 +241,7 @@ class Arc(GraphicPrimitive):
arc = svg_arc((self.x1, self.y1), (self.x2, self.y2), (self.cx, self.cy), self.clockwise)
width = f'{self.width:.6}' if not math.isclose(self.width, 0) else '0.01mm'
return tag('path', d=f'M {float(self.x1):.6} {float(self.y1):.6} {arc}',
fill='none', stroke=color, stroke_width=width, stroke_linecap='round')
fill='none', stroke=color, stroke_width=width)
@dataclass(frozen=True)
class Rectangle(GraphicPrimitive):

35
gerbonara/layers.py
View file

@ -703,15 +703,17 @@ class LayerStack:
bounds = svg_unit.convert_bounds_from(arg_unit, force_bounds)
else:
bounds = self.bounding_box(svg_unit, default=((0, 0), (0, 0)))
stroke_attrs = {'stroke_linejoin': 'round', 'stroke_linecap': 'round'}
tags = []
for (side, use), layer in self.graphic_layers.items():
tags.append(tag('g', list(layer.svg_objects(svg_unit=svg_unit, fg='black', bg="white", tag=Tag)),
id=f'l-{side}-{use}'))
**stroke_attrs, id=f'l-{side}-{use}'))
for i, layer in enumerate(self.drill_layers):
tags.append(tag('g', list(layer.svg_objects(svg_unit=svg_unit, fg='black', bg="white", tag=Tag)),
id=f'l-drill-{i}'))
**stroke_attrs, id=f'l-drill-{i}'))
return setup_svg(tags, bounds, margin=margin, arg_unit=arg_unit, svg_unit=svg_unit, tag=tag)
@ -779,6 +781,7 @@ class LayerStack:
</filter>'''.strip()))
inkscape_attrs = lambda label: dict(inkscape__groupmode='layer', inkscape__label=label) if inkscape else {}
stroke_attrs = {'stroke_linejoin': 'round', 'stroke_linecap': 'round'}
layers = []
for use in ['copper', 'mask', 'silk', 'paste']:
@ -788,18 +791,36 @@ class LayerStack:
layer = self[(side, use)]
fg, bg = ('white', 'black') if use != 'mask' else ('black', 'white')
objects = list(layer.instance.svg_objects(svg_unit=svg_unit, fg=fg, bg=bg, tag=Tag))
default_fill = {'copper': fg, 'mask': fg, 'silk': 'none', 'paste': fg}[use]
default_stroke = {'copper': 'none', 'mask': 'none', 'silk': fg, 'paste': 'none'}[use]
objects = []
for obj in layer.instance.svg_objects(svg_unit=svg_unit, fg=fg, bg=bg, tag=Tag):
if obj.attrs.get('fill') == default_fill:
del obj.attrs['fill']
elif 'fill' not in obj.attrs:
obj.attrs['fill'] = 'none'
if obj.attrs.get('stroke') == default_stroke:
del obj.attrs['stroke']
elif default_stroke != 'none' and 'stroke' not in obj.attrs:
obj.attrs['stroke'] = 'none'
objects.append(obj)
if use == 'mask':
objects.insert(0, tag('path', id='outline-path', d=self.outline_svg_d(unit=svg_unit), style='fill:white'))
layers.append(tag('g', objects, id=f'l-{side}-{use}', filter=f'url(#f-{use})', **inkscape_attrs(f'{side} {use}')))
objects.insert(0, tag('path', id='outline-path', d=self.outline_svg_d(unit=svg_unit), fill='white'))
layers.append(tag('g', objects, id=f'l-{side}-{use}', filter=f'url(#f-{use})',
fill=default_fill, stroke=default_stroke, **stroke_attrs,
**inkscape_attrs(f'{side} {use}')))
for i, layer in enumerate(self.drill_layers):
layers.append(tag('g', list(layer.instance.svg_objects(svg_unit=svg_unit, fg='white', bg='black', tag=Tag)),
id=f'g-drill-{i}', filter=f'url(#f-drill)', **inkscape_attrs(f'drill-{i}')))
id=f'g-drill-{i}', filter=f'url(#f-drill)', **stroke_attrs, **inkscape_attrs(f'drill-{i}')))
if self.outline:
layers.append(tag('g', list(self.outline.instance.svg_objects(svg_unit=svg_unit, fg='white', bg='black', tag=Tag)),
id=f'g-outline-{i}', **inkscape_attrs(f'outline-{i}')))
id=f'g-outline-{i}', **stroke_attrs, **inkscape_attrs(f'outline-{i}')))
layer_group = tag('g', layers, transform=f'translate(0 {bounds[0][1] + bounds[1][1]}) scale(1 -1)')
tags = [tag('defs', filter_defs), layer_group]