diff options
Diffstat (limited to 'gerbonara/utils.py')
| -rw-r--r-- | gerbonara/utils.py | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/gerbonara/utils.py b/gerbonara/utils.py index c1868af..12ac787 100644 --- a/gerbonara/utils.py +++ b/gerbonara/utils.py @@ -25,6 +25,7 @@ gerber.utils This module provides utility functions for working with Gerber and Excellon files. """ +from dataclasses import dataclass import os import re import textwrap @@ -57,6 +58,7 @@ class RegexMatcher: return False +@dataclass(frozen=True, slots=True) class LengthUnit: """ Convenience length unit class. Used in :py:class:`.GraphicObject` and :py:class:`.Aperture` to store lenght information. Provides a number of useful unit conversion functions. @@ -64,13 +66,9 @@ class LengthUnit: Singleton, use only global instances ``utils.MM`` and ``utils.Inch``. """ - def __init__(self, name, shorthand, this_in_mm): - self.name = name - self.shorthand = shorthand - self.factor = this_in_mm - - def __hash__(self): - return hash((self.name, self.shorthand, self.factor)) + name: str + shorthand: str + this_in_mm: float def convert_from(self, unit, value): """ Convert ``value`` from ``unit`` into this unit. @@ -112,6 +110,19 @@ class LengthUnit: max_y = self.convert_from(unit, max_y) return (min_x, min_y), (max_x, max_y) + def convert_bounds_to(self, unit, value): + """ :py:meth:`.LengthUnit.convert_to` but for ((min_x, min_y), (max_x, max_y)) bounding box tuples. """ + + if value is None: + return None + + (min_x, min_y), (max_x, max_y) = value + min_x = self.convert_to(unit, min_x) + min_y = self.convert_to(unit, min_y) + max_x = self.convert_to(unit, max_x) + max_y = self.convert_to(unit, max_y) + return (min_x, min_y), (max_x, max_y) + def format(self, value): """ Return a human-readdable string representing value in this unit. |