maxicode

README

maxicode

Library for creating UPS MaxiCodes written in pure Go

Usage

inputData := "[)>" + RS + "01" + GS + "09651147" + GS + "276" + GS + "066" + GS + "1Z12345677" + GS + "UPSN" + GS + "1X2X3X" + GS + "187" + GS + "" + GS + "1/1" + GS + "10" + GS + "N" + GS + "5 WALDSTRASSE" + GS + "COLOGNE" + GS + "" + RS + "" + EOT
mode := 3
eci := 0
scaleFactor := 35.0

grid, err := maxicode.Encode(mode, eci, inputData)
if grid != nil {
    t.Fatalf(err.Error())
}

err = grid.Draw(scaleFactor).SavePNG("maxicode.png")
if err != nil {
    t.Fatalf(err.Error())
}

Above code will produce the following image:

You can use different scaleFactors to scale maxicodes up/down. Normally scaleFactors should depend on your dpi/dpmm

Contributors

Special thanks for:

• ZintNET - Barcode Library. That repository served as a source of inspiration for this particular library

Documentation

Index

• Constants
• type SymbolGrid
  • func Encode(mode, eci int, inputData string) (*SymbolGrid, error)
  • func (s *SymbolGrid) Draw(multiplier float64) *gg.Context
  • func (s *SymbolGrid) GetModule(row, column int) bool
  • func (s *SymbolGrid) SaveToPNG(multiplier float64, path string) error
  • func (s *SymbolGrid) SetModule(row, column int, value bool)

Constants

const (
	RS  = string(rune(30))
	GS  = string(rune(29))
	EOT = string(rune(4))
)

special characters

Types

type SymbolGrid

type SymbolGrid [30 * 33]bool

func Encode

func Encode(mode, eci int, inputData string) (*SymbolGrid, error)

func (*SymbolGrid) Draw

func (s *SymbolGrid) Draw(multiplier float64) *gg.Context

func (*SymbolGrid) GetModule

func (s *SymbolGrid) GetModule(row, column int) bool

func (*SymbolGrid) SaveToPNG

func (s *SymbolGrid) SaveToPNG(multiplier float64, path string) error

func (*SymbolGrid) SetModule

func (s *SymbolGrid) SetModule(row, column int, value bool)