Last active
October 7, 2015 10:38
-
-
Save aogriffiths/3152257 to your computer and use it in GitHub Desktop.
d3qr
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| An d3 qr code generator called d3qr | |
| see it more clearly at http://bl.ocks.org/3152257 |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?xml version="1.0" encoding="UTF-8"?> | |
| <projectDescription> | |
| <name>3152257-d3qr</name> | |
| <comment></comment> | |
| <projects> | |
| </projects> | |
| <buildSpec> | |
| </buildSpec> | |
| <natures> | |
| <nature>com.aptana.projects.webnature</nature> | |
| </natures> | |
| </projectDescription> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <html lang="en"> | |
| <head> | |
| <title>d3qr</title> | |
| <meta http-equiv="content-type" content="text/html; charset=utf-8"> | |
| <!-- JS --> | |
| <!-- | |
| <script type="text/javascript" src="https://raw.github.com/mbostock/d3/master/d3.min.js"></script> | |
| --> | |
| <script type="text/javascript" src="../2902093/d3.v2.js"></script> | |
| <script type="text/javascript" src="../2902093/qrcode.js"></script> | |
| <script type="text/javascript" src="main.js"></script> | |
| </head> | |
| <body> | |
| <h1>qrd3</h1> | |
| <div id="vis"></div> | |
| <script type="text/javascript"> | |
| main(); | |
| </script> | |
| </body> | |
| </html> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| var __S__ = 8; | |
| function main() { | |
| var svg = d3.select("#vis").append("svg") | |
| .attr("width", 800) | |
| .attr("height", 600); | |
| var qr = create_qrcode("cool"); | |
| var bin=[]; | |
| var overides=[]; | |
| for (var r = 0; r < qr.getModuleCount(); r += 1) { | |
| for (var c = 0; c < qr.getModuleCount(); c += 1) { | |
| var cell = { | |
| r:r, | |
| c:c, | |
| v:qr.isDark(r, c) | |
| } | |
| bin.push(cell); | |
| } | |
| } | |
| svg.selectAll("rect") | |
| .data(bin) | |
| .enter() | |
| .append("rect") | |
| .attr("x",function(d){return d.c*__S__}) | |
| .attr("y",function(d){return d.r*__S__}) | |
| .attr("width",__S__) | |
| .attr("height",__S__) | |
| .attr("fill",function(d){return d.v ? "black" : "white"}) | |
| .attr("cursor", "crosshair") | |
| .on("mousedown",down) | |
| .on("mouseover",over) | |
| .on("mouseup",up) | |
| var changing = false; | |
| var changeto = false; | |
| function down(d, i){ | |
| changing = true; | |
| if(overides[d.r] != undefined && overides[d.r][d.c] != undefined){ | |
| changeto = ! overides[d.r][d.c]; | |
| }else{ | |
| changeto = ! d.v; | |
| } | |
| over.call(this,d,i); | |
| } | |
| function up(){ | |
| changing = false; | |
| } | |
| function over(d,i){ | |
| if(changing){ | |
| var rect1 = d3.select(this); | |
| if(overides[d.r]==undefined)overides[d.r]=[]; | |
| overides[d.r][d.c]=changeto; | |
| var colour = rect1.attr("fill"); | |
| rect2=svg | |
| .append("rect") | |
| .datum(rect1.datum()) | |
| .attr("x",function(d){return d.c*__S__}) | |
| .attr("y",function(d){return d.r*__S__}) | |
| .attr("height",__S__) | |
| .attr("fill", changeto ? "black" : "white" ); | |
| rect2 | |
| .transition(500) | |
| .attr("width",__S__) | |
| .each("end",makenext(rect1,rect2)); | |
| function makenext(rect1,rect2){ | |
| return function next(){ | |
| rect1.attr("fill", changeto ? "black" : "white" ); | |
| rect2.remove(); | |
| } | |
| } | |
| } | |
| } | |
| } | |
| var create_qrcode = function(text, typeNumber, errorCorrectLevel, table) { | |
| var qr = qrcode(typeNumber || 4, errorCorrectLevel || 'M'); | |
| qr.addData(text); | |
| qr.make(); | |
| return qr; | |
| }; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment