Last active
August 29, 2015 14:02
-
-
Save jorpic/037e6d91212a4cb1a547 to your computer and use it in GitHub Desktop.
d3.js spiral
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
| <!DOCTYPE html> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://underscorejs.org/underscore-min.js"></script> | |
| <script src="http://coffeescript.org/extras/coffee-script.js"></script> | |
| <script type="text/coffeescript"> | |
| x = 1 | |
| data = _.map([1..36], -> x *= 0.892) | |
| squares = d3.select('body').append('svg') | |
| .attr('width', innerWidth) | |
| .attr('height', innerHeight) | |
| .selectAll("g") | |
| .data(data) | |
| .enter() | |
| .append("svg:g") | |
| .classed("square", true) | |
| squares.append("svg:rect") | |
| .attr("rx", 1) | |
| .attr("ry", 1) | |
| .attr("x", -2) | |
| .attr("y", -2) | |
| .attr("width", 4) | |
| .attr("height", 4) | |
| .attr("transform", (d) -> "scale(#{d*innerWidth})") | |
| .style("fill", (d,i) -> ["#eeeeee", "#fff"][i%2]) | |
| t = 0 | |
| setInterval( | |
| -> | |
| t = if t >= 1200 then 0 else t + 1 | |
| alpha = 5*360*t/1200 | |
| squares | |
| .attr("transform", (d, i) -> | |
| cx = innerWidth/2 + 36*Math.cos(-alpha/5) | |
| cy = innerHeight/2 + 36*Math.sin(-alpha/5) | |
| "translate(#{[cx, cy]})rotate(#{alpha*i})") | |
| , 110) | |
| </script> | |
| </body> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment