kopia lustrzana https://gitlab.com/gerbolyze/gerbonara
362 wiersze
13 KiB
Python
362 wiersze
13 KiB
Python
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import math
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from dataclasses import dataclass, replace, field, fields, InitVar, KW_ONLY
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from .aperture_macros.parse import GenericMacros
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from .utils import MM, Inch
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from . import graphic_primitives as gp
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def _flash_hole(self, x, y, unit=None, polarity_dark=True):
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if getattr(self, 'hole_rect_h', None) is not None:
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return [*self.primitives(x, y, unit, polarity_dark),
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gp.Rectangle((x, y),
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(self.unit.convert_to(unit, self.hole_dia), self.unit.convert_to(unit, self.hole_rect_h)),
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rotation=self.rotation, polarity_dark=(not polarity_dark))]
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elif self.hole_dia is not None:
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return [*self.primitives(x, y, unit, polarity_dark),
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gp.Circle(x, y, self.unit.convert_to(unit, self.hole_dia/2), polarity_dark=(not polarity_dark))]
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else:
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return self.primitives(x, y, unit, polarity_dark)
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def strip_right(*args):
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args = list(args)
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while args and args[-1] is None:
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args.pop()
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return args
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def none_close(a, b):
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if a is None and b is None:
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return True
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elif a is not None and b is not None:
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return math.isclose(a, b)
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else:
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return False
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class Length:
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def __init__(self, obj_type):
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self.type = obj_type
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@dataclass
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class Aperture:
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_ : KW_ONLY
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unit : str = None
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attrs : dict = field(default_factory=dict)
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original_number : str = None
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@property
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def hole_shape(self):
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if hasattr(self, 'hole_rect_h') and self.hole_rect_h is not None:
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return 'rect'
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else:
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return 'circle'
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def params(self, unit=None):
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out = []
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for f in fields(self):
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if f.kw_only:
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continue
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val = getattr(self, f.name)
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if isinstance(f.type, Length):
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val = self.unit.convert_to(unit, val)
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out.append(val)
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return out
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def flash(self, x, y, unit=None, polarity_dark=True):
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return self.primitives(x, y, unit, polarity_dark)
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def equivalent_width(self, unit=None):
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raise ValueError('Non-circular aperture used in interpolation statement, line width is not properly defined.')
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def to_gerber(self, settings=None):
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# Hack: The standard aperture shapes C, R, O do not have a rotation parameter. To make this API easier to use,
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# we emulate this parameter. Our circle, rectangle and oblong classes below have a rotation parameter. Only at
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# export time during to_gerber, this parameter is evaluated.
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unit = settings.unit if settings else None
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actual_inst = self._rotated()
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params = 'X'.join(f'{float(par):.4}' for par in actual_inst.params(unit) if par is not None)
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if params:
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return f'{actual_inst.gerber_shape_code},{params}'
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else:
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return actual_inst.gerber_shape_code
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def __eq__(self, other):
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# We need to choose some unit here.
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return hasattr(other, 'to_gerber') and self.to_gerber(MM) == other.to_gerber(MM)
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def _rotate_hole_90(self):
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if self.hole_rect_h is None:
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return {'hole_dia': self.hole_dia, 'hole_rect_h': None}
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else:
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return {'hole_dia': self.hole_rect_h, 'hole_rect_h': self.hole_dia}
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@dataclass(unsafe_hash=True)
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class ExcellonTool(Aperture):
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gerber_shape_code = 'C'
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human_readable_shape = 'drill'
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diameter : Length(float)
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plated : bool = None
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depth_offset : Length(float) = 0
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def primitives(self, x, y, unit=None, polarity_dark=True):
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return [ gp.Circle(x, y, self.unit.convert_to(unit, self.diameter/2), polarity_dark=polarity_dark) ]
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def to_xnc(self, settings):
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z_off = 'Z' + settings.write_excellon_value(self.depth_offset, self.unit) if self.depth_offset is not None else ''
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return 'C' + settings.write_excellon_value(self.diameter, self.unit) + z_off
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def __eq__(self, other):
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if not isinstance(other, ExcellonTool):
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return False
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if not self.plated == other.plated:
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return False
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if not none_close(self.depth_offset, self.unit(other.depth_offset, other.unit)):
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return False
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return none_close(self.diameter, self.unit(other.diameter, other.unit))
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def __str__(self):
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plated = '' if self.plated is None else (' plated' if self.plated else ' non-plated')
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z_off = '' if self.depth_offset is None else f' z_offset={self.depth_offset}'
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return f'<Excellon Tool d={self.diameter:.3f}{plated}{z_off} [{self.unit}]>'
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def equivalent_width(self, unit=MM):
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return unit(self.diameter, self.unit)
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def dilated(self, offset, unit=MM):
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offset = unit(offset, self.unit)
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return replace(self, diameter=self.diameter+2*offset)
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def _rotated(self):
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return self
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def to_macro(self):
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return ApertureMacroInstance(GenericMacros.circle, self.params(unit=MM))
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def params(self, unit=None):
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return [self.unit.convert_to(unit, self.diameter)]
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@dataclass
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class CircleAperture(Aperture):
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gerber_shape_code = 'C'
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human_readable_shape = 'circle'
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diameter : Length(float)
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hole_dia : Length(float) = None
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hole_rect_h : Length(float) = None
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rotation : float = 0 # radians; for rectangular hole; see hack in Aperture.to_gerber
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def primitives(self, x, y, unit=None, polarity_dark=True):
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return [ gp.Circle(x, y, self.unit.convert_to(unit, self.diameter/2), polarity_dark=polarity_dark) ]
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def __str__(self):
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return f'<circle aperture d={self.diameter:.3} [{self.unit}]>'
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flash = _flash_hole
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def equivalent_width(self, unit=None):
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return self.unit.convert_to(unit, self.diameter)
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def dilated(self, offset, unit=MM):
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offset = self.unit(offset, unit)
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return replace(self, diameter=self.diameter+2*offset, hole_dia=None, hole_rect_h=None)
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def _rotated(self):
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if math.isclose(self.rotation % (2*math.pi), 0) or self.hole_rect_h is None:
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return self
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else:
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return self.to_macro(self.rotation)
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def to_macro(self):
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return ApertureMacroInstance(GenericMacros.circle, self.params(unit=MM))
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def params(self, unit=None):
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return strip_right(
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self.unit.convert_to(unit, self.diameter),
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self.unit.convert_to(unit, self.hole_dia),
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self.unit.convert_to(unit, self.hole_rect_h))
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@dataclass
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class RectangleAperture(Aperture):
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gerber_shape_code = 'R'
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human_readable_shape = 'rect'
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w : Length(float)
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h : Length(float)
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hole_dia : Length(float) = None
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hole_rect_h : Length(float) = None
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rotation : float = 0 # radians
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def primitives(self, x, y, unit=None, polarity_dark=True):
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return [ gp.Rectangle(x, y, self.unit.convert_to(unit, self.w), self.unit.convert_to(unit, self.h),
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rotation=self.rotation, polarity_dark=polarity_dark) ]
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def __str__(self):
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return f'<rect aperture {self.w:.3}x{self.h:.3} [{self.unit}]>'
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flash = _flash_hole
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def equivalent_width(self, unit=None):
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return self.unit.convert_to(unit, math.sqrt(self.w**2 + self.h**2))
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def dilated(self, offset, unit=MM):
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offset = self.unit(offset, unit)
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return replace(self, w=self.w+2*offset, h=self.h+2*offset, hole_dia=None, hole_rect_h=None)
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def _rotated(self):
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if math.isclose(self.rotation % math.pi, 0):
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return self
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elif math.isclose(self.rotation % math.pi, math.pi/2):
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return replace(self, w=self.h, h=self.w, **self._rotate_hole_90(), rotation=0)
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else: # odd angle
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return self.to_macro()
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def to_macro(self):
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return ApertureMacroInstance(GenericMacros.rect,
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[MM(self.w, self.unit),
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MM(self.h, self.unit),
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MM(self.hole_dia, self.unit) or 0,
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MM(self.hole_rect_h, self.unit) or 0,
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self.rotation])
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def params(self, unit=None):
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return strip_right(
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self.unit.convert_to(unit, self.w),
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self.unit.convert_to(unit, self.h),
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self.unit.convert_to(unit, self.hole_dia),
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self.unit.convert_to(unit, self.hole_rect_h))
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@dataclass
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class ObroundAperture(Aperture):
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gerber_shape_code = 'O'
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human_readable_shape = 'obround'
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w : Length(float)
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h : Length(float)
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hole_dia : Length(float) = None
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hole_rect_h : Length(float) = None
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rotation : float = 0
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def primitives(self, x, y, unit=None, polarity_dark=True):
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return [ gp.Obround(x, y, self.unit.convert_to(unit, self.w), self.unit.convert_to(unit, self.h),
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rotation=self.rotation, polarity_dark=polarity_dark) ]
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def __str__(self):
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return f'<obround aperture {self.w:.3}x{self.h:.3} [{self.unit}]>'
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flash = _flash_hole
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def dilated(self, offset, unit=MM):
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offset = self.unit(offset, unit)
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return replace(self, w=self.w+2*offset, h=self.h+2*offset, hole_dia=None, hole_rect_h=None)
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def _rotated(self):
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if math.isclose(self.rotation % math.pi, 0):
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return self
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elif math.isclose(self.rotation % math.pi, math.pi/2):
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return replace(self, w=self.h, h=self.w, **self._rotate_hole_90(), rotation=0)
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else:
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return self.to_macro()
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def to_macro(self):
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# generic macro only supports w > h so flip x/y if h > w
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inst = self if self.w > self.h else replace(self, w=self.h, h=self.w, **_rotate_hole_90(self), rotation=self.rotation-90)
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return ApertureMacroInstance(GenericMacros.obround,
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[MM(inst.w, self.unit),
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MM(ints.h, self.unit),
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MM(inst.hole_dia, self.unit),
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MM(inst.hole_rect_h, self.unit),
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inst.rotation])
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def params(self, unit=None):
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return strip_right(
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self.unit.convert_to(unit, self.w),
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self.unit.convert_to(unit, self.h),
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self.unit.convert_to(unit, self.hole_dia),
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self.unit.convert_to(unit, self.hole_rect_h))
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@dataclass
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class PolygonAperture(Aperture):
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gerber_shape_code = 'P'
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diameter : Length(float)
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n_vertices : int
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rotation : float = 0
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hole_dia : Length(float) = None
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def __post_init__(self):
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self.n_vertices = int(self.n_vertices)
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def primitives(self, x, y, unit=None, polarity_dark=True):
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return [ gp.RegularPolygon(x, y, self.unit.convert_to(unit, self.diameter)/2, self.n_vertices,
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rotation=self.rotation, polarity_dark=polarity_dark) ]
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def __str__(self):
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return f'<{self.n_vertices}-gon aperture d={self.diameter:.3} [{self.unit}]>'
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def dilated(self, offset, unit=MM):
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offset = self.unit(offset, unit)
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return replace(self, diameter=self.diameter+2*offset, hole_dia=None)
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flash = _flash_hole
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def _rotated(self):
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return self
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def to_macro(self):
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return ApertureMacroInstance(GenericMacros.polygon, self.params(MM))
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def params(self, unit=None):
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rotation = self.rotation % (2*math.pi / self.n_vertices) if self.rotation is not None else None
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if self.hole_dia is not None:
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return self.unit.convert_to(unit, self.diameter), self.n_vertices, rotation, self.unit.convert_to(unit, self.hole_dia)
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elif rotation is not None and not math.isclose(rotation, 0):
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return self.unit.convert_to(unit, self.diameter), self.n_vertices, rotation
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else:
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return self.unit.convert_to(unit, self.diameter), self.n_vertices
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@dataclass
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class ApertureMacroInstance(Aperture):
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macro : object
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parameters : [float]
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rotation : float = 0
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@property
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def gerber_shape_code(self):
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return self.macro.name
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def primitives(self, x, y, unit=None, polarity_dark=True):
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out = list(self.macro.to_graphic_primitives(
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offset=(x, y), rotation=self.rotation,
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parameters=self.parameters, unit=unit, polarity_dark=polarity_dark))
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return out
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def dilated(self, offset, unit=MM):
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return replace(self, macro=self.macro.dilated(offset, unit))
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def _rotated(self):
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if math.isclose(self.rotation % (2*math.pi), 0):
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return self
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else:
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return self.to_macro()
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def to_macro(self):
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return replace(self, macro=self.macro.rotated(self.rotation), rotation=0)
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def __eq__(self, other):
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return hasattr(other, 'macro') and self.macro == other.macro and \
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hasattr(other, 'params') and self.params == other.params and \
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hasattr(other, 'rotation') and self.rotation == other.rotation
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def params(self, unit=None):
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# We ignore "unit" here as we convert the actual macro, not this instantiation.
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# We do this because here we do not have information about which parameter has which physical units.
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return tuple(self.parameters)
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