linecode/dmcreator

node.js package, wrapper around libdmtx for creating datamatrix tags.

dmCreator

node.js package, wrapper around libdmtx for creating and decoding datamatrix tags.

Install

This package depends on libdmtx being installed and available on your system. You can find instructions on how to install it here. After that is installed, proceed with...

npm install dmcreator

Note for OSX users: you can alternatively use brew install libdmtx.

Usage

const dmCreator = require("dmcreator");

Encoding

dmCreator.generateDm({data: "The text to encode in a datamatrix"});

It returns an object with the following properties:

• pixels: an array of pixels representing the datamatrix tag
• width: the width of the resulting pixels
• height: the height of the resulting pixels
• channels: the channels count of the resulting pixels

Decoding

dmCreator.decodeDm({
  cols: colsCount,
  rows: rowsCount,
  channels: channelsCount
}, data, timeout)

where data is a Buffer.

It returns an object with the following properties:

• success: true if a datamatrix tag was found and decoded properly
• test: the content of the datamatrix tag