From 91beedbc31636147708c045019705bc4df109828 Mon Sep 17 00:00:00 2001
From: Daniel Weschke <daniel.weschke@directbox.de>
Date: Sat, 20 Jul 2024 13:00:29 +0200
Subject: [PATCH] add awg

---
 setup.py   | 10 ++++++--
 src/awg.py | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+), 2 deletions(-)
 create mode 100755 src/awg.py

diff --git a/setup.py b/setup.py
index 206a3db..1f781c4 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ with open(path.join(path.abspath(path.dirname(__file__)), 'README.md'), encoding
 
 setup(
   name="engineering",
-  version="2020.10.21",
+  version="2024.07.20",
   description="engineering tools",
   long_description=long_description,
   author="Daniel Weschke",
@@ -16,18 +16,24 @@ setup(
   package_dir={'': 'src'},
   packages=find_packages("src"),
   py_scripts = [
+    # mech
     'beam.py',
     'plate.py',
     'tube.py',
+    # et
+    'awg.py',
   ],
   entry_points={
     'console_scripts': [
+      # mech
       'eng-beam=beam:main',
       'eng-plate=plate:main',
       'eng-tube=tube:main',
+      # et
+      'eng-awg=awg:main',
     ],
   },
-  keywords = 'mechanics plate tube stress',
+  keywords = 'mechanical electrical engineering mechanics plate tube stress',
   license="MIT",
   classifiers=[
     'Environment :: Console',
diff --git a/src/awg.py b/src/awg.py
new file mode 100755
index 0000000..1f37f05
--- /dev/null
+++ b/src/awg.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""\
+Python script to determine the diameter for a given AWG wire size.
+"""
+from __future__ import absolute_import, division, print_function, unicode_literals
+import sys
+from math import pi
+
+__author__ = "Daniel Weschke"
+__copyright__ = "Copyright 2019 Daniel Weschke"
+__credits__ = ["Daniel Weschke"]
+__license__ = "MIT"
+__version__ = "2019.01.16"
+__maintainer__ = "Daniel Weschke"
+__email__ = "daniel.weschke@directbox.de"
+__status__ = "Production"  # "Prototype", "Development", "Production"
+
+VERSION = """\
+%(prog)s version {version} {copyright}""".format(
+  version=__version__, copyright=__copyright__)
+
+EPILOG = """\
+"""
+
+def diameter(number):
+  """in mm"""
+  return 0.127 * 92**((36-number)/39)
+
+def area(number):
+  """in mm²"""
+  return pi/4*diameter(number)**2
+
+def main():
+  """
+  Main function
+  """
+  import argparse
+
+  parser = argparse.ArgumentParser(
+    description=__doc__, prefix_chars='-', epilog=EPILOG,
+    #usage="%(prog)s [OPTION]... NAME",
+    formatter_class=argparse.RawTextHelpFormatter,
+  )
+  parser.add_argument('NUM', type=str, help='AWG wire size')
+  parser.add_argument('-V', '--version', action='version', version=VERSION)
+  parser.add_argument('-d', dest='debug', action='store_true', help=argparse.SUPPRESS)
+  args = parser.parse_args()
+
+  if args.debug:
+    print(args)
+
+  string = ''
+  if args.NUM.isdigit():
+    if args.NUM in ['00', '000', '0000']:
+      number = 1 - len(args.NUM)
+    else:
+      number = int(args.NUM)
+    if number != 0 or len(args.NUM) == 1:
+      string += (args.NUM + ' AWG\n'
+                 'A = %.4g' % area(number) + ' mm²\n' +
+                 'd = %.4g' % diameter(number) + ' mm\n')
+
+  print(string)
+  return 1
+
+if __name__ == "__main__":
+  sys.exit(main())