98 lines
3.1 KiB
Markdown
98 lines
3.1 KiB
Markdown
# WireViz
|
|
|
|
## Summary
|
|
|
|
WireViz is a simple yet flexible markup language for documenting wires and connector pinouts with beautiful graphical output.
|
|
|
|
It is based on [GraphViz](https://www.graphviz.org/) and designed as an "extension" of it. A parser reads a WireViz file and generates valid GraphViz output, which can instantly be rendered to SVG/PNG.
|
|
|
|
## Features
|
|
|
|
* WireViz is fully text based
|
|
* No special editor required
|
|
* Human readable
|
|
* Easy version control
|
|
* GraphViz-like syntax
|
|
* Understands and uses color abbreviations as per [IEC 60757](https://en.wikipedia.org/wiki/Electronic_color_code#Color_band_system) (black=BK, red=RD, ...)
|
|
* Auto-generates standard wire color schemes and allows custom ones if needed
|
|
* [DIN 47100](https://en.wikipedia.org/wiki/DIN_47100) (WT/BN/GN/YE/GY/PK/BU/RD/BK/VT/...)
|
|
* [IEC 62](https://en.wikipedia.org/wiki/Electronic_color_code#Color_band_system) (BN/RD/OR/YE/GN/BU/VT/GY/WT/BK/...)
|
|
* Allows more than one connector per side, as well as loopbacks
|
|
* Will include images of known connectors, together with their pinouts
|
|
|
|
## Example
|
|
|
|
WireViz input file:
|
|
|
|
// define connectors
|
|
|
|
X1 [type="D-Sub DE-9",
|
|
subtype="female",
|
|
num_pins=9,
|
|
pin_labels="DCD|RX|TX|DTR|GND|DSR|RTS|CTS|RI",
|
|
position=L
|
|
]
|
|
|
|
X2 [type="Molex KK 254 6-pin",
|
|
subtype="female",
|
|
num_pins=6,
|
|
pin_labels="GND|RX|TX|NC|OUT|IN",
|
|
position=R
|
|
]
|
|
|
|
// define wire
|
|
|
|
W1 [type="3x 0,25 mm² shielded",
|
|
length="0.2m",
|
|
num_wires=3,
|
|
colors="din47100",
|
|
shield=true
|
|
]
|
|
|
|
// define connections
|
|
|
|
X1:5 -> W1:1 -> X2:1 // GND
|
|
X1:2 -> W1:2 -> X2:3 // TX-RX
|
|
X1:3 -> W1:3 -> X2:2 // RX-TX
|
|
X1:5 -> W1:S // shield
|
|
X2:5 -> X2:6 // loop
|
|
|
|
Output file:
|
|
|
|
|
|
|
|
GraphViz code generated by parser:
|
|
|
|
digraph G {
|
|
graph [rankdir = LR, ranksep=2, fontname = "arial"];
|
|
edge [arrowhead=none, fontname = "arial"];
|
|
node [shape=record, style=rounded, fontname = "arial"];
|
|
|
|
X1[label="X1 | D-Sub DE-9 | female | {{DCD|RX|TX|DTR|GND|DSR|RTS|CTS|RI} | {<p1>1|<p2>2|<p3>3|<p4>4|<p5>5|<p6>6|<p7>7|<p8>8|<p9>9}} "];
|
|
X2[label="X2 | Molex KK 254 6-pin | female | {{<p1>1|<p2>2|<p3>3|<p4>4|<p5>5|<p6>6} | {GND|RX|TX|NC|OUT|IN}}"];
|
|
|
|
W1[label="W1 | 3x 0,25 mm² shielded | 0.2 m | {{<w1i>1|<w2i>2|<w3i>3|<wsi>}|{WH|BN|GN|Shield}|{<w1o>1|<w2o>2|<w3o>3|<wsi>}}}"];
|
|
|
|
{edge[style=bold]
|
|
{edge[color="#000000:#ffffff:#000000"] X1:p5 -> W1:w1i; W1:w1o -> X2:p1; }
|
|
{edge[color="#000000:#666600:#000000"] X1:p2 -> W1:w2i; W1:w2o -> X2:p3; }
|
|
{edge[color="#000000:#00ff00:#000000"] X1:p3 -> W1:w3i; W1:w3o -> X2:p2; }
|
|
X1:p5 -> W1:wsi;
|
|
X2:p5:w -> X2:p6:w;
|
|
}
|
|
}
|
|
|
|
[Example 2](idea/example2.dot)
|
|
|
|
|
|
|
|
## Status
|
|
|
|
This is very much a work in progress, and mainly an idea in my head.
|
|
A Python module and test scripts is available. Running the test script will generate GraphViz output.
|
|
The parser will follow later; contributions are welcome!
|
|
|
|
## License
|
|
|
|
GNU GPLv3
|