Segmentize.js

A lightweight, framework-agnostic (Vanilla TS) library for creating realistic 7-segment displays.

✨ Features

• 📋 Flawless Copy/Paste: Text on the board can be highlighted and copied cleanly.
• 💡 Realistic Neon Glow: Highly customizable glow property that simulates real-world LED or VFD displays with authentic light dispersion (Bloom effect).
• 📐 Smart Scaling: All dimensions are based on CSS em units. Simply change the font-size on the parent container, and the entire board scales proportionally.
• ⏱️ Hardware Decimal Point Logic: The decimal point (.) is rendered natively as an 8th segment attached to the previous digit, preventing it from taking up a full empty character slot.
• ⚛️ Framework-agnostic: Written in pure TypeScript. Extremely easy to wrap into a <SegmentBoard /> component for React, Vue, Angular, or Svelte.

🚀 Quick Start

HTML:

<div id="neon-board" style="font-size: 16px;"></div>

TypeScript:

import { SegmentBoard } from './segmentize';

// 1. Initialize the board
const board = new SegmentBoard('#neon-board', {
  text: "20.26",          // Initial text (supports decimal points and colons)
  type: "7-segment",      // Display type ("7-segment" or "matrix")

  // --- Basic Configuration ---
  size: 1,                // Global scale multiplier (e.g., 2 makes the board twice as big)
  colorOn: "#00ff00",     // Color of active segments (neon)
  colorOff: "#1a1a1a",    // Color of inactive segments
  glow: 1.5,              // Glow intensity multiplier (or boolean)
  skew: -10,              // Italic effect in degrees
  gap: 0.5,               // Gap between characters (in em, scales with size)

  // --- Advanced Configuration (Optional) ---
  // Overrides perfect default proportions. Usually, you only need 'size' above.
  char: {
    width: 2.5,           // Width of a single character (in em)
    height: 4.5,          // Height of a single character (in em)
    thickness: 0.5,       // Thickness of the segment
    gap: 0.1              // Gap between segments inside a character
  }
});