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import enum
import math
import re
from .sexp import *
from .base_types import *
def unfuck_layers(layers):
if layers and layers[0] == 'F&B.Cu':
return ['F.Cu', 'B.Cu', *layers[1:]]
else:
return layers
def fuck_layers(layers):
if layers and 'F.Cu' in layers and 'B.Cu' in layers and not any(re.match(r'^In[0-9]+\.Cu$', l) for l in layers):
return ['F&B.Cu', *(l for l in layers if l not in ('F.Cu', 'B.Cu'))]
else:
return layers
def layer_mask(layers):
if isinstance(layers, int):
return layers
if isinstance(layers, str):
layers = [l.strip() for l in layers.split(',')]
mask = 0
for layer in layers:
match layer:
case '*.Cu':
return 0xffffffff
case 'F.Cu':
mask |= 1<<0
case 'B.Cu':
mask |= 1<<31
case _:
if (m := re.match(f'In([0-9]+)\.Cu', layer)):
mask |= 1<<int(m.group(1))
return mask
def center_arc_to_kicad_mid(center, start, end):
# Convert normal p1/p2/center notation to the insanity that is kicad's midpoint notation
cx, cy = center.x, center.y
x1, y1 = start.x - cx, start.y - cy
x2, y2 = end.x - cx, end.y - cy
# Get a vector pointing from the center to the "mid" point.
dx, dy = x1 - x2, y1 - y2 # Get a vector pointing from "end" to "start"
dx, dy = -dy, dx # rotate by 90 degrees counter-clockwise
# normalize vector, and multiply by radius to get final point
r = math.hypot(x1, y1)
l = math.hypot(dx, dy)
mx = cx + dx / l * r
my = cy + dy / l * r
return XYCoord(mx, my)
def kicad_mid_to_center_arc(mid, start, end):
""" Convert kicad's slightly insane midpoint notation to standrad center/p1/p2 notation.
Returns the center and radius of the circle passing the given 3 points.
In case the 3 points form a line, raises a ValueError.
"""
# https://stackoverflow.com/questions/28910718/give-3-points-and-a-plot-circle
p1, p2, p3 = start, mid, end
temp = p2[0] * p2[0] + p2[1] * p2[1]
bc = (p1[0] * p1[0] + p1[1] * p1[1] - temp) / 2
cd = (temp - p3[0] * p3[0] - p3[1] * p3[1]) / 2
det = (p1[0] - p2[0]) * (p2[1] - p3[1]) - (p2[0] - p3[0]) * (p1[1] - p2[1])
if abs(det) < 1.0e-6:
raise ValueError()
# Center of circle
cx = (bc*(p2[1] - p3[1]) - cd*(p1[1] - p2[1])) / det
cy = ((p1[0] - p2[0]) * cd - (p2[0] - p3[0]) * bc) / det
radius = math.sqrt((cx - p1[0])**2 + (cy - p1[1])**2)
return (cx, cy), radius
@sexp_type('hatch')
class Hatch:
style: AtomChoice(Atom.none, Atom.edge, Atom.full) = Atom.edge
pitch: float = 0.5
@sexp_type('connect_pads')
class PadConnection:
type: AtomChoice(Atom.thru_hole_only, Atom.full, Atom.no) = None
clearance: Named(float) = 0
@sexp_type('keepout')
class ZoneKeepout:
tracks_allowed: Named(YesNoAtom(yes=Atom.allowed, no=Atom.not_allowed), name='tracks') = True
vias_allowed: Named(YesNoAtom(yes=Atom.allowed, no=Atom.not_allowed), name='vias') = True
pads_allowed: Named(YesNoAtom(yes=Atom.allowed, no=Atom.not_allowed), name='pads') = True
copperpour_allowed: Named(YesNoAtom(yes=Atom.allowed, no=Atom.not_allowed), name='copperpour') = True
footprints_allowed: Named(YesNoAtom(yes=Atom.allowed, no=Atom.not_allowed), name='footprints') = True
@sexp_type('smoothing')
class ZoneSmoothing:
style: AtomChoice(Atom.chamfer, Atom.fillet) = Atom.chamfer
radius: Named(float) = None
@sexp_type('fill')
class ZoneFill:
yes: Flag() = False
mode: Named(Flag(atom=Atom.hatch)) = False
thermal_gap: Named(float) = 0.508
thermal_bridge_width: Named(float) = 0.508
smoothing: ZoneSmoothing = None
island_removal_mode: Named(int) = None
island_area_min: Named(float) = None
hatch_thickness: Named(float) = None
hatch_gap: Named(float) = None
hatch_orientation: Named(int) = None
hatch_smoothing_level: Named(int) = None
hatch_smoothing_value: Named(float) = None
hatch_border_algorithm: Named(AtomChoice(Atom.hatch_thickness, Atom.min_thickness)) = None
hatch_min_hole_area: Named(float) = None
@sexp_type('filled_polygon')
class FillPolygon:
layer: Named(str) = ""
island: Wrap(Flag()) = False
pts: PointList = field(default_factory=PointList)
@sexp_type('fill_segments')
class FillSegment:
layer: Named(str) = ""
pts: PointList = field(default_factory=PointList)
@sexp_type('polygon')
class ZonePolygon:
pts: PointList = field(default_factory=PointList)
@sexp_type('zone')
class Zone:
net: Named(int) = 0
net_name: Named(str) = ""
layer: Named(str) = None
layers: Named(Array(str)) = None
tstamp: Timestamp = None
name: Named(str) = None
hatch: Hatch = None
priority: OmitDefault(Named(int)) = 0
connect_pads: PadConnection = field(default_factory=PadConnection)
min_thickness: Named(float) = 0.254
filled_areas_thickness: Named(YesNoAtom()) = True
keepout: ZoneKeepout = None
fill: ZoneFill = field(default_factory=ZoneFill)
polygon: ZonePolygon = field(default_factory=ZonePolygon)
fill_polygons: List(FillPolygon) = field(default_factory=list)
fill_segments: List(FillSegment) = field(default_factory=list)
def __after_parse__(self, parent=None):
self.layers = unfuck_layers(self.layers)
def __before_sexp__(self):
self.layers = fuck_layers(self.layers)
def unfill(self):
self.fill.yes = False
self.fill_polygons = []
self.fill_segments = []
@sexp_type('polygon')
class RenderCachePolygon:
pts: PointList = field(default_factory=PointList)
@sexp_type('render_cache')
class RenderCache:
text: str = None
rotation: int = 0
polygons: List(RenderCachePolygon) = field(default_factory=list)
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