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Export flashes as svg <use> tags

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This commit is contained in:
jaseg 2023-04-26 22:36:20 +02:00
parent 9f74fad6a2
commit 8409fbb908
3 changed files with 45 additions and 17 deletions
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18
gerbonara/cam.py
View file

@ -291,21 +291,15 @@ class CamFile:
return setup_svg(tags, bounds, margin=margin, arg_unit=arg_unit, svg_unit=svg_unit,
pagecolor=bg, tag=tag)
def svg_objects(self, svg_unit=MM, fg='black', bg='white', tag=Tag):
def svg_objects(self, svg_unit=MM, fg='black', bg='white', aperture_map={}, tag=Tag):
pl = None
for i, obj in enumerate(self.objects):
#if isinstance(obj, go.Flash):
# if pl:
# tags.append(pl.to_svg(tag, fg, bg))
# pl = None
if isinstance(obj, go.Flash) and id(obj.aperture) in aperture_map:
yield tag('use', href='#'+aperture_map[id(obj.aperture)],
x=f'{svg_unit(obj.x, obj.unit):.3f}',
y=f'{svg_unit(obj.y, obj.unit):.3f}')
# mask_tags = [ prim.to_svg(tag, 'white', 'black') for prim in obj.to_primitives(unit=svg_unit) ]
# mask_tags.insert(0, tag('rect', width='100%', height='100%', fill='black'))
# mask_id = f'mask{i}'
# tag('mask', mask_tags, id=mask_id)
# tag('rect', width='100%', height='100%', mask='url(#{mask_id})', fill=fg)
#else:
else:
for primitive in obj.to_primitives(unit=svg_unit):
if isinstance(primitive, gp.Line):
if not pl:

23
gerbonara/layers.py
View file

@ -753,7 +753,7 @@ class LayerStack:
return setup_svg(tags, bounds, margin=margin, arg_unit=arg_unit, svg_unit=svg_unit, tag=tag)
def to_pretty_svg(self, side='top', margin=0, arg_unit=MM, svg_unit=MM, force_bounds=None, tag=Tag, inkscape=False,
colors=None):
colors=None, use=True):
""" Convert this layer stack to a pretty SVG string that is suitable for display or for editing in tools such as
Inkscape. If you want to process the resulting SVG in other tools, consider using
:py:meth:`~layers.LayerStack.to_svg` instead, which produces output without color styling or blending based on
@ -779,10 +779,12 @@ class LayerStack:
:py:obj:`"bottom"`, and :py:obj:`"mechanical"` as well as :py:obj:`"inner1"`, :py:obj:`"inner2"`
etc. for internal layers. Valid use values are :py:obj:`"mask"`, :py:obj:`"silk"`,
:py:obj:`"paste"`, and :py:obj:`"copper"`. For internal layers, only :py:obj:`"copper"` is valid.
:param use: Enable/disable ``<use>`` tags for aperture flashes. Defaults to :py:obj:`True` (enabled).
:rtype: :py:obj:`str`
"""
if colors is None:
colors = DEFAULT_COLORS
use_use = use
colors_alpha = {}
for layer, color in colors.items():
@ -818,6 +820,8 @@ class LayerStack:
inkscape_attrs = lambda label: dict(inkscape__groupmode='layer', inkscape__label=label) if inkscape else {}
stroke_attrs = {'stroke_linejoin': 'round', 'stroke_linecap': 'round'}
use_defs = []
layers = []
for use in ['copper', 'mask', 'silk', 'paste']:
if (side, use) not in self:
@ -825,13 +829,24 @@ class LayerStack:
continue
layer = self[(side, use)]
fg, bg = ('white', 'black') if use != 'mask' else ('black', 'white')
fg, bg = ('white', 'black') if use != 'mask' else ('black', 'white')
default_fill = {'copper': fg, 'mask': fg, 'silk': 'none', 'paste': fg}[use]
default_stroke = {'copper': 'none', 'mask': 'none', 'silk': fg, 'paste': 'none'}[use]
use_map = {}
if use_use:
layer.dedup_apertures()
for obj in layer.objects:
if hasattr(obj, 'aperture') and obj.polarity_dark and id(obj.aperture) not in use_map:
children = [prim.to_svg(fg, bg, tag=tag)
for prim in obj.aperture.flash(0, 0, svg_unit, polarity_dark=True)]
use_id = f'a{len(use_defs)}'
use_defs.append(tag('g', children, id=use_id))
use_map[id(obj.aperture)] = use_id
objects = []
for obj in layer.instance.svg_objects(svg_unit=svg_unit, fg=fg, bg=bg, tag=Tag):
for obj in layer.instance.svg_objects(svg_unit=svg_unit, fg=fg, bg=bg, aperture_map=use_map, tag=Tag):
if obj.attrs.get('fill') == default_fill:
del obj.attrs['fill']
elif 'fill' not in obj.attrs:
@ -858,7 +873,7 @@ class LayerStack:
id=f'l-mechanical-outline', **stroke_attrs, **inkscape_attrs(f'outline')))
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]
tags = [tag('defs', filter_defs + use_defs), layer_group]
return setup_svg(tags, bounds, margin=margin, arg_unit=arg_unit, svg_unit=svg_unit, pagecolor="white", tag=tag, inkscape=inkscape)
def bounding_box(self, unit=MM, default=None):

21
gerbonara/rs274x.py
View file

@ -228,6 +228,26 @@ class GerberFile(CamFile):
parser.parse(data, filename=filename)
return obj
def dedup_apertures(self, settings=None):
settings = settings or FileSettings.defaults()
defined_apertures = {}
ap_map = {}
for obj in self.objects:
if not hasattr(obj, 'aperture'):
continue
if id(obj.aperture) in ap_map:
obj.aperture = ap_map[id(obj.aperture)]
ap_def = obj.aperture.to_gerber(settings)
if ap_def in defined_apertures:
ap_map[id(obj.aperture)] = obj.aperture = defined_apertures[ap_def]
else:
ap_map[id(obj.aperture)] = defined_apertures[ap_def] = obj.aperture
self.apertures = list(ap_map.values())
def _generate_statements(self, settings, drop_comments=True):
""" Export this file as Gerber code, yields one str per line. """
self.sync_apertures()
@ -265,7 +285,6 @@ class GerberFile(CamFile):
defined_apertures = {}
number = 10
for aperture in self.apertures:
if isinstance(aperture, apertures.ApertureMacroInstance):
macro_def = am_stmt(aperture.rotated().macro)
if macro_def not in processed_macros: