diff options
Diffstat (limited to 'gerbonara/gerber/aperture_macros/primitive.py')
| -rw-r--r-- | gerbonara/gerber/aperture_macros/primitive.py | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/gerbonara/gerber/aperture_macros/primitive.py b/gerbonara/gerber/aperture_macros/primitive.py deleted file mode 100644 index 8732520..0000000 --- a/gerbonara/gerber/aperture_macros/primitive.py +++ /dev/null @@ -1,270 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- - -# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com> -# Copyright 2022 Jan Götte <gerbonara@jaseg.de> - -import warnings -import contextlib -import math - -from .expression import Expression, UnitExpression, ConstantExpression, expr - -from .. import graphic_primitives as gp - - -def point_distance(a, b): - x1, y1 = a - x2, y2 = b - return math.sqrt((x2 - x1)**2 + (y2 - y1)**2) - -def deg_to_rad(a): - return (a / 180) * math.pi - -class Primitive: - def __init__(self, unit, args): - self.unit = unit - - 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()): - arg = expr(arg) # convert int/float to Expression object - - if fieldtype == UnitExpression: - setattr(self, name, UnitExpression(arg, unit)) - 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): - return f'{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 __repr__(self): - return str(self) - - class Calculator: - def __init__(self, instance, variable_binding={}, unit=None): - self.instance = instance - self.variable_binding = variable_binding - self.unit = unit - - def __enter__(self): - return self - - def __exit__(self, _type, _value, _traceback): - pass - - def __getattr__(self, name): - return getattr(self.instance, name).calculate(self.variable_binding, self.unit) - - def __call__(self, expr): - return expr.calculate(self.variable_binding, self.unit) - - -class Circle(Primitive): - code = 1 - exposure : Expression - diameter : UnitExpression - # center x/y - x : UnitExpression - y : UnitExpression - rotation : Expression = None - - def __init__(self, unit, args): - super().__init__(unit, args) - if self.rotation is None: - self.rotation = ConstantExpression(0) - - def to_graphic_primitives(self, offset, rotation, variable_binding={}, unit=None, polarity_dark=True): - with self.Calculator(self, variable_binding, unit) as calc: - x, y = gp.rotate_point(calc.x, calc.y, deg_to_rad(calc.rotation) + rotation, 0, 0) - x, y = x+offset[0], y+offset[1] - return [ gp.Circle(x, y, calc.diameter/2, polarity_dark=(bool(calc.exposure) == polarity_dark)) ] - - def dilate(self, offset, unit): - self.diameter += UnitExpression(offset, unit) - -class VectorLine(Primitive): - code = 20 - exposure : Expression - width : UnitExpression - start_x : UnitExpression - start_y : UnitExpression - end_x : UnitExpression - end_y : UnitExpression - rotation : Expression - - def to_graphic_primitives(self, offset, rotation, variable_binding={}, unit=None, polarity_dark=True): - with self.Calculator(self, variable_binding, unit) as calc: - center_x = (calc.end_x + calc.start_x) / 2 - center_y = (calc.end_y + calc.start_y) / 2 - delta_x = calc.end_x - calc.start_x - delta_y = calc.end_y - calc.start_y - length = point_distance((calc.start_x, calc.start_y), (calc.end_x, calc.end_y)) - - center_x, center_y = center_x+offset[0], center_y+offset[1] - rotation += deg_to_rad(calc.rotation) + math.atan2(delta_y, delta_x) - - return [ gp.Rectangle(center_x, center_y, length, calc.width, rotation=rotation, - polarity_dark=(bool(calc.exposure) == polarity_dark)) ] - - def dilate(self, offset, unit): - self.width += UnitExpression(2*offset, unit) - - -class CenterLine(Primitive): - code = 21 - exposure : Expression - width : UnitExpression - height : UnitExpression - # center x/y - x : UnitExpression - y : UnitExpression - rotation : Expression - - def to_graphic_primitives(self, offset, rotation, variable_binding={}, unit=None, polarity_dark=True): - with self.Calculator(self, variable_binding, unit) as calc: - rotation += deg_to_rad(calc.rotation) - x, y = gp.rotate_point(calc.x, calc.y, rotation, 0, 0) - x, y = x+offset[0], y+offset[1] - w, h = calc.width, calc.height - - return [ gp.Rectangle(x, y, w, h, rotation, polarity_dark=(bool(calc.exposure) == polarity_dark)) ] - - def dilate(self, offset, unit): - self.width += UnitExpression(2*offset, unit) - - -class Polygon(Primitive): - code = 5 - exposure : Expression - n_vertices : Expression - # center x/y - x : UnitExpression - y : UnitExpression - diameter : UnitExpression - rotation : Expression - - def to_graphic_primitives(self, offset, rotation, variable_binding={}, unit=None, polarity_dark=True): - with self.Calculator(self, variable_binding, unit) as calc: - rotation += deg_to_rad(calc.rotation) - x, y = gp.rotate_point(calc.x, calc.y, rotation, 0, 0) - x, y = x+offset[0], y+offset[1] - return [ gp.RegularPolygon(calc.x, calc.y, calc.diameter/2, calc.n_vertices, rotation, - polarity_dark=(bool(calc.exposure) == polarity_dark)) ] - - def dilate(self, offset, unit): - self.diameter += UnitExpression(2*offset, unit) - - -class Thermal(Primitive): - code = 7 - exposure : Expression - # center x/y - x : UnitExpression - y : UnitExpression - d_outer : UnitExpression - d_inner : UnitExpression - gap_w : UnitExpression - rotation : Expression - - def to_graphic_primitives(self, offset, rotation, variable_binding={}, unit=None, polarity_dark=True): - with self.Calculator(self, variable_binding, unit) as calc: - rotation += deg_to_rad(calc.rotation) - x, y = gp.rotate_point(calc.x, calc.y, rotation, 0, 0) - x, y = x+offset[0], y+offset[1] - - dark = (bool(calc.exposure) == polarity_dark) - - return [ - gp.Circle(x, y, calc.d_outer/2, polarity_dark=dark), - gp.Circle(x, y, calc.d_inner/2, polarity_dark=not dark), - gp.Rectangle(x, y, d_outer, gap_w, rotation=rotation, polarity_dark=not dark), - gp.Rectangle(x, y, gap_w, d_outer, rotation=rotation, polarity_dark=not dark), - ] - - def dilate(self, offset, unit): - # I'd rather print a warning and produce graphically slightly incorrect output in these few cases here than - # producing macros that may evaluate to primitives with negative values. - warnings.warn('Attempted dilation of macro aperture thermal primitive. This is not supported.') - - -class Outline(Primitive): - code = 4 - - def __init__(self, unit, args): - 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.pop(0) - - # length arg must not contain variables (that would not make sense) - length_arg = args.pop(0).calculate() - - if length_arg != len(args)//2-1: - raise ValueError(f'Invalid aperture macro outline primitive, given size {length_arg} does not match length of coordinate list({len(args)//2-1}).') - - if len(args) % 2 == 1: - self.rotation = args.pop() - else: - self.rotation = ConstantExpression(0.0) - - if args[0] != args[-2] or args[1] != args[-1]: - raise ValueError(f'Invalid aperture macro outline primitive, polygon is not closed {args[2:4], args[-3:-1]}') - - self.coords = [(UnitExpression(x, unit), UnitExpression(y, unit)) for x, y in zip(args[0::2], args[1::2])] - - def __str__(self): - return f'<Outline {len(self.coords)} points>' - - def to_gerber(self, unit=None): - coords = ','.join(coord.to_gerber(unit) for xy in self.coords for coord in xy) - return f'{self.code},{self.exposure.to_gerber()},{len(self.coords)-1},{coords},{self.rotation.to_gerber()}' - - def to_graphic_primitives(self, offset, rotation, variable_binding={}, unit=None, polarity_dark=True): - with self.Calculator(self, variable_binding, unit) as calc: - rotation += deg_to_rad(calc.rotation) - bound_coords = [ gp.rotate_point(calc(x), calc(y), rotation, 0, 0) for x, y in self.coords ] - bound_coords = [ (x+offset[0], y+offset[1]) for x, y in bound_coords ] - bound_radii = [None] * len(bound_coords) - return [gp.ArcPoly(bound_coords, bound_radii, polarity_dark=(bool(calc.exposure) == polarity_dark))] - - def dilate(self, offset, unit): - # we would need a whole polygon offset/clipping library here - warnings.warn('Attempted dilation of macro aperture outline primitive. This is not supported.') - - -class Comment: - code = 0 - - 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 [ - Comment, - Circle, - VectorLine, - CenterLine, - Outline, - Polygon, - Thermal, - ]}, - # alternative codes - 2: VectorLine, -} - |