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logidrom
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:bulb: Digital Circuit rendering engine
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# logidrom [](https://www.npmjs.com/package/logidrom) [](https://github.com/drom/logidrom/actions) Digital logic circuit rendering engine. ## Overview **logidrom** is a JavaScript library designed to render digital logic circuits as high-quality SVG diagrams. It can be used both in Node.js and directly in the browser. ## Features - **Simple JSON API**: Define your logic using a straightforward nested array structure. - **Rich Component Library**: Supports a wide range of standard logic gates (AND, OR, XOR, etc.) and complex components (DFFs, MUXs). - **JavaScript to Logic**: Can convert JavaScript expressions into logic diagrams using a built-in AST walker. - **Customizable Styling**: Diagrams are rendered as SVGs and can be styled with CSS. - **High Performance**: Optimized for fast rendering of large circuit diagrams. ## Installation ```bash npm install logidrom ``` ## Usage ### Basic Logic Rendering You can define a set of assignments where each assignment maps an output to a logic expression. ```javascript const logidrom = require('logidrom'); const onml = require('onml'); const source = { assign: [ ['x', ['&', 'a', 'b']], // x = a AND b ['y', ['~|', 'c', 'd', 'e']] // y = NOR(c, d, e) ] }; const svg = logidrom.renderAssign(0, source); const svgString = onml.stringify(svg); console.log(svgString); ``` ### Supported Gate Symbols | Symbol | Gate | | :---: | :--- | | `&` | AND | | `~&` | NAND | | `\|` | OR | | `~\|` | NOR | | `^` | XOR | | `~^` | XNOR | | `=` | BUF / Input | | `~` | INV / NOT | | `+` | Adder / Add | | `-` | Subtractor / Sub | | `*` | Multiplier / Mul | ### JavaScript Expression Rendering `logidrom` can also take a JavaScript AST and render it as a logic circuit. ```javascript const esprima = require('esprima'); const logidrom = require('logidrom'); const onml = require('onml'); const code = 'x = (a & b) | (c ^ d);'; const ast = esprima.parse(code); const svg = logidrom.r(ast, { index: 0 }); console.log(onml.stringify(svg)); ``` ## Development ### Prerequisites - Node.js (v18+) - npm ### Setup ```bash git clone https://github.com/drom/logidrom.git cd logidrom npm install ``` ### Running Tests ```bash npm test ``` ### Building for Browser ```bash npm run prepublish ``` This will generate `build/logidrom.js`. ## License MIT License. See [LICENSE.md](LICENSE.md) for details.
