Install

yarn add svg-outline-stroke

Usage

String input:

const outlineStroke = require('svg-outline-stroke')

const strokedSVG = `
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64">
  <line x1="32" y1="16" x2="32" y2="48" fill="none" stroke="#202020" stroke-miterlimit="10" stroke-width="2"/>
  <line x1="48" y1="32" x2="16" y2="32" fill="none" stroke="#202020" stroke-miterlimit="10" stroke-width="2"/>
</svg>`

outlineStroke(strokedSVG).then(outlined => {
  console.log(outlined)
})

Buffer input:

const fs = require('fs')
const outlineStroke = require('svg-outline-stroke')

fs.readFile('./source.svg', (err, data) => {
  if (err) throw err
  outlineStroke(data).then(outlined => {
    fs.writeFile('./dest.svg', outlined, err => {
      if (err) throw err
      console.log('yup, outlined!')
    })
  })
})

Params

The second argument accepts params to apply directly when re-tracing the image, like fill color of the path, background and so on. Take a look into potrace params

outlineStroke(strokedSVG, { color: '#bada55' }).then(outlined => {
  console.log(outlined, 'Outlined SVG with #bada55 `fill` color')
})

Related

micro-outline-stroke Microservice with a public endpoint

outline-stroke-cli CLI version