Fonts Similarizer

Defines visual similarity of fonts and calculates CSS properties for better similarity.

Installation

npm i fonts-similarizer

Usage

let FontsSimilarizer = require('fonts-similarizer');

let arial = '/path/to/arial.ttf';
let roboto = '/path/to/roboto.ttf';

let fontsSimilarizer = new FontsSimilarizer(arial, roboto);

console.log(fontsSimilarizer.getSizeSimilarity());
// result: 0.9487533507057297

console.log(fontsSimilarizer.getVisualSimilarity());
// result: 0.6640576052704552

console.log(fontsSimilarizer.getCssAdaptation());
// result: { fontSize: 1.0402611534276387,
//           letterSpacing: -0.02557017786321616,
//           wordSpacing: 0.07072794587066308 }

API

constructor(baseFont, similarFont)

Creates instance of FontsSimilarizer.

• baseFont: Path to a base font file (WOFF, OTF, TTF).
• similarFont: Path to a font file that should be adapted (WOFF, OTF, TTF).

getSizeSimilarity()

Defines similarity based on symbols width.

getVisualSimilarity()

Defines similarity based on symbols visual similarity.

setLetterFrequency(letterFrequency)

Sets letter frequency for specific language (English by default)

• letterFrequency: Object, where keya are symbols and values are symbols usage percent. For example: {a: 8.167, b: 1.492, ...}.