racket-simple-qr

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racket-simple-qr

(★ 13)

a qr code tool for racket-lang

racket-simple-qr 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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# racket-simple-qr

A Qr Code Writer Library For Racket
==================

# Install
    raco pkg install simple-qr

# Usage

```racket
(define (qr-write data file_name
                  #:mode [mode 'B]
                  #:error_level [error_level 'H]
                  #:module_width [module_width 5]
                  #:color [color '("black" . "white")]
                  #:output_type [output_type 'png]
                  ))
```

output qr code image to file.
  
color's form is '(front_color . background_color).
  
use color 'transparent to set transparent background.

# Example

```racket
#lang racket

(require "../main.rkt")

(qr-write "https://github.com/simmone" "normal.png")

(qr-write "https://github.com/simmone" "normal_color.png" #:color '("#ffbb33" . "#0d47a1"))

(qr-write "https://github.com/simmone" "normal_trans.png" #:color '("#9933CC" . transparent))

(qr-write "https://github.com/simmone" "small.png" #:module_width 2)

(qr-write "https://github.com/simmone" "large.png" #:module_width 10)

(qr-write "https://github.com/simmone" "normal.svg" #:output_type 'svg)

(qr-write "https://github.com/simmone" "large.svg" #:module_width 10 #:output_type 'svg)

(qr-write "https://github.com/simmone" "normal_color.svg" #:color '("#ffbb33" . "#0d47a1") #:output_type 'svg)

(qr-write "https://github.com/simmone" "normal_trans.svg" #:color '("#9933CC" . transparent) #:output_type 'svg)
```

# Png

normal.png:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/normal.png)

normal_color.png:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/normal_color.png))

normal_trans.png:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/normal_trans.png)

small.png:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/small.png)

large.png:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/large.png)

# SVG

normal.svg:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/normal.svg)

large.svg:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/large.svg)

normal_color.svg:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/normal_color.svg)

normal_trans.svg:

![ScreenShot](https://raw.githubusercontent.com/simmone/racket-simple-qr/master/simple-qr/example/normal_trans.svg)

racket-simple-qr

racket-simple-qr 최신버젼 다운로드

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