QR Codes: Difference between revisions

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=QR Codes=
{{headerbox}}'''QR Codes''' are two-dimensional barcode graphics that can encode arbitrary binary data and we use QR code stickers to label things at Noisebridge!
A QR Code is a two-dimensional barcode that can encode arbitrary binary data.
{{boxend}}


Stick one on a physical object encoding a link to a page that can be configured to 301 to arbitrary URLs (e.g. https://www.noisebridge.net/qr/07A72C23A7), and you get a system for [http://en.wikipedia.org/wiki/Hardlink_(homonymy) hardlinking] physical objects into cyberspace.
Stick one on a physical object encoding a link to a page that can be configured to 301 to arbitrary URLs (e.g. https://www.noisebridge.net/qr/07A72C23A7), and you get a system for [http://en.wikipedia.org/wiki/Hardlink_(homonymy) hardlinking] physical objects into cyberspace.
You can embed a QR code for any page on the wiki, of its own URL, by including this snippet on the page:
* QR code embed snippet: <code><nowiki>{{#qrlite:{{fullurl:{{FULLPAGENAME}}#section-fragment}}|format=png|size=5|margin=0}}</nowiki></code>, prefix with a <code><nowiki><br></nowiki></code> to set it on its own line.
* Include the text of the link, <code><nowiki><br>{{fullurl:{{FULLPAGENAME}}}}</nowiki></code>, in text near the image, for the others' clarity when browsing & for printing.
<br>{{#qrlite:{{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}|format=png|size=5|margin=0}}
== FAQs: Frequently Accessed QRs  ==
<div class="mw-collapsible mw-collapsed">QR links<span class="mw-collapsible-content">
{|class="wikitable"
| {{#qrlite:{{fullurl:{{FULLPAGENAMEE}}}}|format=png|size=5|margin=0}}
|-
| {{fullurl:{{FULLPAGENAMEE}}}}
|}
{|class="wikitable"
| {{#qrlite:https://donate.noisebridge.net/|format=png|size=5|margin=0}}
|-
| https://donate.noisebridge.net/
|}
{|class="wikitable"
| {{#qrlite:https://www.noisebridge.net/wiki/Special:RequestAccount|format=png|size=5|margin=0}}
|-
|https://www.noisebridge.net/wiki/Special:RequestAccount (anyone can submit, needs someone to approve from the big queue full of spam)
|}
{|class="wikitable"
| {{#qrlite:https://www.noisebridge.net/wiki/Special:InviteSignup|format=png|size=5|margin=0}}
|-
|https://www.noisebridge.net/wiki/Special:InviteSignup (admin user invite new by email)
|}
{|class="wikitable"
| {{#qrlite:https://www.noisebridge.net/wiki/Anti-Harassment_Policy|format=png|size=5|margin=0}}
|-
|[[Anti-Harassment Policy]] / AHP
|}
{|class="wikitable"
| {{#qrlite:https://www.noisebridge.net/wiki/Community Standards|format=png|size=5|margin=0}}
|-
|[[Community Standards]]
|}
{|class="wikitable"
| {{#qrlite:https://www.noisebridge.net/wiki/Excellence|format=png|size=5|margin=0}}
|-
|[[Excellence]]
|}
</span></div>
== Extension:QRLite, on this wiki ==
You can embed a QR code for any page on the wiki, of its own URL, by including this snippet on the page:
* QR code embed snippet: <code><nowiki>{{#qrlite:{{fullurl:{{FULLPAGENAME}}#section-fragment}}|format=png|size=5|margin=0}}</nowiki></code>, prefix with a <code><nowiki><br></nowiki></code> to set it on its own line.
* Include the text of the link, <code><nowiki><br>{{fullurl:{{FULLPAGENAME}}}}</nowiki></code>, in text near the image, for the others' clarity when browsing & for printing.
QR codes are generated by the "QRLite" extension on this wiki,
* checkable at the [[Special:Version#mw-version-ext]],
* '''documented at [[mw:Extension:QRLite]]''',
* or in source at [[gh:gesinn-it/QRLite]].
===QR Code Demo===
Here's the new QR codes (and also some styling of the URL#fragment link target). Go wild!
<br>{{#qrlite:{{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}|format=png|size=5|margin=0}}
{{#qrlite:{{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}}}
{|class="wikitable"
| PNG
|{{#qrlite:{{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}|format=png|size=5|margin=0}}
|
* Plain & simple, {{fullurl:{{FULLPAGENAME}}}}:
<pre><nowiki>
{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=png|size=5|margin=0}}
</nowiki></pre>
* With #fragment, {{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}:
<pre><nowiki>
{{#qrlite:{{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}|format=png|size=5|margin=0}}
</nowiki></pre>
|-
| SVG
|{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=svg|size=5|margin=0}}
|
<pre><nowiki>
{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=svg|size=5|margin=0}}
</nowiki></pre>
|-
| View/include the link nearby
|
|
<pre><nowiki>
<br>{{fullurl:{{FULLPAGENAME}}}}
</nowiki></pre>
|}
For external URLs, here's the syntax:
  <nowiki>{{#qrlite:https://example.com/|format=svg|size=5|margin=0}}</nowiki>
=== QR Code with border ===
{|class="wikitable"
|{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=png|size=5|margin=0}}
|-
|{{fullurl:{{FULLPAGENAME}}}}
|}
<nowiki>{|class="wikitable"
|{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=png|size=5|margin=0}}
|-
|{{fullurl:{{FULLPAGENAME}}}}
|}</nowiki>


==Documentation==
==Documentation==

Latest revision as of 16:09, 29 May 2024

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QR Codes are two-dimensional barcode graphics that can encode arbitrary binary data and we use QR code stickers to label things at Noisebridge!

Stick one on a physical object encoding a link to a page that can be configured to 301 to arbitrary URLs (e.g. https://www.noisebridge.net/qr/07A72C23A7), and you get a system for hardlinking physical objects into cyberspace.

You can embed a QR code for any page on the wiki, of its own URL, by including this snippet on the page:

  • QR code embed snippet: {{#qrlite:{{fullurl:{{FULLPAGENAME}}#section-fragment}}|format=png|size=5|margin=0}}, prefix with a <br> to set it on its own line.
  • Include the text of the link, <br>{{fullurl:{{FULLPAGENAME}}}}, in text near the image, for the others' clarity when browsing & for printing.


QRLite error: QrCode class not found, you may need to run "composer install".

FAQs: Frequently Accessed QRs[edit | edit source]

QR links
QRLite error: QrCode class not found, you may need to run "composer install".
https://replica-wiki.extremist.software/wiki/QR_Codes
QRLite error: QrCode class not found, you may need to run "composer install".
https://donate.noisebridge.net/
QRLite error: QrCode class not found, you may need to run "composer install".
https://www.noisebridge.net/wiki/Special:RequestAccount (anyone can submit, needs someone to approve from the big queue full of spam)
QRLite error: QrCode class not found, you may need to run "composer install".
https://www.noisebridge.net/wiki/Special:InviteSignup (admin user invite new by email)
QRLite error: QrCode class not found, you may need to run "composer install".
Anti-Harassment Policy / AHP
QRLite error: QrCode class not found, you may need to run "composer install".
Community Standards
QRLite error: QrCode class not found, you may need to run "composer install".
Excellence

Extension:QRLite, on this wiki[edit | edit source]

You can embed a QR code for any page on the wiki, of its own URL, by including this snippet on the page:

  • QR code embed snippet: {{#qrlite:{{fullurl:{{FULLPAGENAME}}#section-fragment}}|format=png|size=5|margin=0}}, prefix with a <br> to set it on its own line.
  • Include the text of the link, <br>{{fullurl:{{FULLPAGENAME}}}}, in text near the image, for the others' clarity when browsing & for printing.

QR codes are generated by the "QRLite" extension on this wiki,

QR Code Demo[edit | edit source]

Here's the new QR codes (and also some styling of the URL#fragment link target). Go wild!


QRLite error: QrCode class not found, you may need to run "composer install".
QRLite error: QrCode class not found, you may need to run "composer install".
PNG
QRLite error: QrCode class not found, you may need to run "composer install".
 
{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=png|size=5|margin=0}}

{{#qrlite:{{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}|format=png|size=5|margin=0}}
SVG
QRLite error: QrCode class not found, you may need to run "composer install".
 
{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=svg|size=5|margin=0}}
View/include the link nearby 
<br>{{fullurl:{{FULLPAGENAME}}}}

For external URLs, here's the syntax: 

 {{#qrlite:https://example.com/|format=svg|size=5|margin=0}}

QR Code with border[edit | edit source]

QRLite error: QrCode class not found, you may need to run "composer install".
https://replica-wiki.extremist.software/wiki/QR_Codes 
{|class="wikitable"
|{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=png|size=5|margin=0}}
|-
|{{fullurl:{{FULLPAGENAME}}}}
|}

Documentation[edit | edit source]

Generators[edit | edit source]

Software[edit | edit source]

  • Zxing Project appears to be a Google-blessed software library written in Java for processing one-dimensional and two-dimensional barcodes. It is written for use on mobile phones.
  • Snappr.net has an image-attched-to-email-to-text type gateway setup. snappr [at] snappr.net More info on their page

Other 2D Encodings[edit | edit source]

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