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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com>
from dataclasses import dataclass, fields
from expression import Expression, UnitExpression, ConstantExpression
class Primitive:
def __init__(self, unit, args, is_abstract):
self.unit = unit
self.is_abstract = is_abstract
if len(args) > len(type(self).__annotations__):
raise ValueError(f'Too many arguments ({len(args)}) for aperture macro primitive {self.code} ({type(self)})')
for arg, (name, fieldtype) in zip(args, type(self).__annotations__.items()):
if is_abstract:
if fieldtype == UnitExpression:
setattr(self, name, UnitExpression(arg, unit))
else:
setattr(self, name, arg)
else:
setattr(self, name, arg)
for name in type(self).__annotations__:
if not hasattr(self, name):
raise ValueError(f'Too few arguments ({len(args)}) for aperture macro primitive {self.code} ({type(self)})')
def to_gerber(self, unit=None):
if not self.is_abstract:
raise TypeError(f"Something went wrong, tried to gerber'ize bound aperture macro primitive {self}")
return self.code + ',' + ','.join(
getattr(self, name).to_gerber(unit) for name in type(self).__annotations__) + '*'
def __str__(self):
attrs = ','.join(str(getattr(self, name)).strip('<>') for name in type(self).__annotations__)
return f'<{type(self).__name__} {attrs}>'
def bind(self, variable_binding={}):
if not self.is_abstract:
raise TypeError('{type(self).__name__} object is already instantiated, cannot bind again.')
# Return instance of the same class, but replace all attributes by their actual numeric values
return type(self)(unit=self.unit, is_abstract=False, args=[
getattr(self, name).calculate(variable_binding) for name in type(self).__annotations__
])
class CommentPrimitive(Primitive):
code = 0
comment : str
class CirclePrimitive(Primitive):
code = 1
exposure : Expression
diameter : UnitExpression
center_x : UnitExpression
center_y : UnitExpression
rotation : Expression = ConstantExpression(0.0)
class VectorLinePrimitive(Primitive):
code = 20
exposure : Expression
width : UnitExpression
start_x : UnitExpression
start_y : UnitExpression
end_x : UnitExpression
end_y : UnitExpression
rotation : Expression
class CenterLinePrimitive(Primitive):
code = 21
exposure : Expression
width : UnitExpression
height : UnitExpression
x : UnitExpression
y : UnitExpression
rotation : Expression
class PolygonPrimitive(Primitive):
code = 5
exposure : Expression
n_vertices : Expression
center_x : UnitExpression
center_y : UnitExpression
diameter : UnitExpression
rotation : Expression
class ThermalPrimitive(Primitive):
code = 7
center_x : UnitExpression
center_y : UnitExpression
d_outer : UnitExpression
d_inner : UnitExpression
gap_w : UnitExpression
rotation : Expression
class OutlinePrimitive(Primitive):
code = 4
def __init__(self, unit, args, is_abstract):
if len(args) < 11:
raise ValueError(f'Invalid aperture macro outline primitive, not enough parameters ({len(args)}).')
if len(args) > 5004:
raise ValueError(f'Invalid aperture macro outline primitive, too many points ({len(args)//2-2}).')
self.exposure = args[0]
if is_abstract:
# length arg must not contain variabels (that would not make sense)
length_arg = args[1].calculate()
if length_arg != len(args)//2 - 2:
raise ValueError(f'Invalid aperture macro outline primitive, given size does not match length of coordinate list({len(args)}).')
if len(args) % 1 != 1:
self.rotation = args.pop()
else:
self.rotation = ConstantExpression(0.0)
if args[2] != args[-2] or args[3] != args[-1]:
raise ValueError(f'Invalid aperture macro outline primitive, polygon is not closed {args[2:4], args[-3:-1]}')
self.coords = [UnitExpression(arg, unit) for arg in args[1:]]
else:
if len(args) % 1 != 1:
self.rotation = args.pop()
else:
self.rotation = 0
self.coords = args[1:]
def to_gerber(self, unit=None):
if not self.is_abstract:
raise TypeError(f"Something went wrong, tried to gerber'ize bound aperture macro primitive {self}")
coords = ','.join(coord.to_gerber(unit) for coord in self.coords)
return f'{self.code},{self.exposure.to_gerber()},{len(self.coords)//2-1},{coords},{self.rotation.to_gerber()}'
def bind(self, variable_binding={}):
if not self.is_abstract:
raise TypeError('{type(self).__name__} object is already instantiated, cannot bind again.')
return OutlinePrimitive(self.unit, is_abstract=False, args=[None, *self.coords, self.rotation])
class Comment:
def __init__(self, comment):
self.comment = comment
def to_gerber(self, unit=None):
return f'0 {self.comment}'
PRIMITIVE_CLASSES = {
**{cls.code: cls for cls in [
CommentPrimitive,
CirclePrimitive,
VectorLinePrimitive,
CenterLinePrimitive,
OutlinePrimitive,
PolygonPrimitive,
ThermalPrimitive,
]},
# alternative codes
2: VectorLinePrimitive,
}
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