Gabe R 82b173f2ce Refactor and clean up code (#39)
* Format all files using autopep8 to add basic PEP8 conformity.
* Add Exception types to bare excepts to prevent catching `ctrl+c`
* Remove some unnecessary assignment to dummy variables before returning
* Add `Optional` to type hints that can be `NoneType`
* Change a number of single-letter variables to more descriptive names
* Replace string.format() use with Python's f-strings, as they tends to be cleaner, and provide a performance boost.
  * One multiline string was left as string.format() as I do not believe f-strings support multiline
  * Some of the string.format() instances had unused/ignored arguments. I left them out of the f-strings, but I marked those cases with a comments that begins `# FIXME:`
* Rename variables that were shadowding python standard functions (specifically `format->fmt`, `input->inp`, `type->maintype`)
  * Some instances of `type` were not changed, as it breaks the yaml parsing. Needs to be looked into.
* Move classes in `wireviz.py` to two new files `DataClasses.py` and `Harness.py`.

Co-authored-by: Daniel Rojas <github@danielrojas.net>
2020-06-29 11:57:03 +02:00
2020-06-27 23:46:22 +02:00
2020-06-28 10:46:24 +02:00
2020-06-28 15:24:03 +02:00

WireViz

Summary

WireViz is a tool for easily documenting cables, wiring harnesses and connector pinouts. It takes plain text, YAML-formatted files as input and produces beautiful graphical output (SVG, PNG, ...) thanks to GraphViz. It handles automatic BOM (Bill of Materials) creation and has a lot of extra features.

Features

  • WireViz input files are fully text based
    • No special editor required
    • Human readable
    • Easy version control
    • YAML syntax
  • Understands and uses color abbreviations as per IEC 60757 (black=BK, red=RD, ...)
    • Optionally outputs colors as abbreviation (e.g. 'YE'), full name (e.g. 'yellow') or hex value (e.g. '#ffff00'), with choice of UPPER or lower case
  • Auto-generates standard wire color schemes and allows custom ones if needed
    • DIN 47100 (WT/BN/GN/YE/GY/PK/BU/RD/BK/VT/...)
    • IEC 62 (BN/RD/OR/YE/GN/BU/VT/GY/WT/BK/...)
  • Understands wire gauge in mm² or AWG
    • Optionally auto-calculates and displays AWG equivalent when specifying mm²
  • Allows more than one connector per side, as well as loopbacks
  • Allows for easy-autorouting for 1-to-1 wiring
  • Generates BOM (Bill of Materials)

Note: WireViz is not designed to represent the complete wiring of a system. Its main aim is to document the construction of individual wires and harnesses.

Installation

WireWiz requires GraphViz to be installed in order to work. See the GraphViz download page for OS-specific instructions.

Installation of the WireWiz package and its Python dependencies can be done using pip after cloning the repository:

git clone <repo url>
cd <working copy>
pip3 install -e .

Examples

Demo 01

WireViz input file:

connectors:
  X1:
    type: D-Sub
    subtype: female
    pinout: [DCD, RX, TX, DTR, GND, DSR, RTS, CTS, RI]
  X2:
    type: Molex KK 254
    subtype: female
    pinout: [GND, RX, TX]

cables:
  W1:
    gauge: 0.25 mm2
    length: 0.2
    color_code: DIN
    wirecount: 3
    shield: true

connections:
  -
    - X1: [5,2,1]
    - W1: [1,2,3]
    - X2: [1,3,2]
  -
    - X1: 5
    - W1: s

Output file:

Sample output diagram

Bill of Materials (auto-generated)

Demo 02

Source - Bill of Materials

See the tutorial page for sample code, as well as the example gallery to see more of what WireViz can do.

(Re-)Building the example projects

If you would like to rebuild all of the included demos, examples and tutorials, use the build_examples.py script:

./build_examples.py

Usage

$ wireviz ~/path/to/file/mywire.yml

This will output the following files

mywire.gv         GraphViz output
mywire.svg        Wiring diagram as vector image
mywire.png        Wiring diagram as raster image
mywire.bom.tsv    BOM (bill of materials) as tab-separated text file
mywire.html       HTML page with wiring diagram and BOM embedded

Status

This is very much a work in progress. Source code, API, syntax and functionality may change wildly at any time.

Requirements

Developed and tested using Python 3.7; might not work with older Python versions.

Ubuntu 18.04 LTS users in particular may need to separately install Python 3.7 or above, as that comes with Python 3.6 as the included system Python install.

License

GNU GPLv3

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