
QR codes are ubiquitous in our daily lives. From scanning a code to make a payment to sharing our contact information with a colleague, these two-dimensional codes have become an essential part of how we interact with technology. However, generating QR codes on the web has traditionally required the use of third-party libraries or frameworks, which can be cumbersome and add unnecessary bloat to a project. In this article, we will explore a new solution that allows developers to generate QR codes without any dependencies or frameworks, using a customizable, animate-able, SVG-based web component.
What is QR-Code?
QR-Code is a web component that allows developers to generate QR codes with ease, without the need for any external libraries or frameworks. It is built using pure JavaScript and SVG, making it lightweight and easy to integrate into any project. QR-Code is fully customizable, allowing developers to adjust the size, color, and error correction level of their QR codes. Additionally, it supports animation, allowing developers to create dynamic QR codes that can change over time.
How does it work?
QR-Code works by generating an SVG image of a QR code based on the input data provided by the developer. It uses the QRious library, a pure JavaScript QR code generator, to create the code itself. Once the code is generated, it is rendered as an SVG image and can be easily integrated into any web page.
Customization options
QR-Code offers a range of customization options that allow developers to tailor their QR codes to their specific needs. These options include:
- Size: Developers can adjust the size of their QR codes by setting the width and height attributes.
- Color: QR codes can be customized with any color by setting the color attribute.
- Error correction level: QR-Code supports four error correction levels (low, medium, quartile, and high), which can be set using the errorCorrectionLevel attribute.
- Animation: Developers can create dynamic QR codes by setting the animation attribute. This allows the QR code to change over time, creating an eye-catching effect.
Conclusion:
QR-Code is a powerful tool for developers looking to generate QR codes on the web. Its no-dependencies, no-framework approach makes it easy to integrate into any project, while its customization options and animation support make it a versatile solution for a range of use cases. Whether you’re building a payment system or creating a marketing campaign, QR-Code is the perfect tool for generating high-quality QR codes that are both functional and visually appealing.
Python code to create a QR code using the qrcode library:
import qrcode
# generate a QR code
qr = qrcode.QRCode(version=1, box_size=10, border=4)
qr.add_data("https://example.com")
qr.make(fit=True)
# create an SVG image
qr.svg("qrcode.svg", scale=8)
This code generates a QR code for the URL “https://example.com” and saves it as an SVG image named “qrcode.svg”. You can modify the code to generate a QR code for a different URL and save it with a different name.
however, i can provide you with the steps to implement a qr-code web component in python.
- install the necessary libraries: you will need to install the
svgwrite
andnumpy
libraries. - generate the qr code: you can use the
qrcode
library to generate the qr code. - create an svg image: you can use the
svgwrite
library to create an svg image of the qr code. - add animation: you can add animation to the qr code using the
svgwrite
library. - customize the qr code: you can customize the qr code by changing its size, color, and other attributes.
- implement the web component: you can implement the web component using the
svgwrite
library and add it to your website.
here is a sample code to get you started:
from qrcode import qrcode
import numpy as np
import svgwrite
# generate the qr code
qr = qrcode(version=1, error_correction=qrcode.constants.error_correct_l, box_size=10, border=4)
qr.add_data('https://www.example.com')
qr.make(fit=true)
qr_img = qr.make_image(fill_color='black', back_color='white')
# create an svg image
svg = svgwrite.drawing(width=200, height=200)
svg.add(svgwrite.shapes.rect(insert=(0, 0), size=(200, 200), fill='white'))
svg.add(svgwrite.shapes.rect(insert=(100, 100), size=(100, 100), fill='black'))
# add animation
svg.add(svgwrite.animation.animate(svgwrite.shapes.circle(r=5), duration=1, repeat_count='indefinite', transform='rotate(0,100,100)'))
# customize the qr code
svg.add(svgwrite.shapes.path(d=qr_img.todataurl().replace('data:image/png;base64,', ''), fill='black', stroke='none'))
# save the svg image
svg.save('qr-code.svg')
this is just a basic example, and you can customize the qr code and svg image to suit your needs.
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