mustache phase

_.md

[ Launch: mustache phase ] 6708450 by gelicia
[ Launch: mustache phase ] 6708338 by enjalot
[ Launch: mustache phase ] 6708324 by slembcke
[ Launch: i wish this was a mustache emporium ] 6707845 by gelicia
[ Launch: i wish this was a mustache emporium ] 6690695 by gelicia

config.json

{"description":"mustache phase","endpoint":"","display":"svg","public":true,"require":[],"fileconfigs":{"inlet.js":{"default":true,"vim":false,"emacs":false,"fontSize":12},"_.md":{"default":true,"vim":false,"emacs":false,"fontSize":12},"config.json":{"default":true,"vim":false,"emacs":false,"fontSize":12}},"fullscreen":false,"play":true,"loop":false,"restart":false,"autoinit":true,"pause":true,"loop_type":"pingpong","bv":false,"nclones":15,"clone_opacity":0.4,"duration":3000,"ease":"linear","dt":0.01,"thumbnail":"http://i.imgur.com/9Rz0NbP.gif","inline-console":false}

inlet.js

//with @slembcke, because my math needs simplification
//http://beesandbombs.tumblr.com/post/62169316636/tropical-squares

tributary.duration = 2000;

var rectSize = 60;
var numHeight = Math.ceil(tributary.sh/rectSize);
var numWidth = Math.ceil(tributary.sw/rectSize)+1;
var margin = {t: 0, l: 0};

//want to go from color 1 to color 2 to color 1
var colorScale = d3.scale.linear()
	.interpolate(d3.interpolateHsl)
    .domain([0, 0.5])
    .range(["#F70FBF", "#6A3BE4"]);

var svg = d3.selectAll('svg');

svg.append("rect").attr({
  x:0,
  y:0,
  height: tributary.sh,
  width: tributary.sw
});

svg.selectAll('rect.content').data(d3.range(numHeight*numWidth)).enter().append('rect')
.attr({
  x: -rectSize/2,
  y: -rectSize/2,
  height: rectSize,
  width: rectSize,
  fill: colorScale(0)
}).classed("content", true);

tributary.run = function(unused, t){
  svg.selectAll('rect.content').attr({
   fill: colorScale(Math.abs(0.5-(t%1))),
    "transform" : function(d, i){
      var xBaseCoord = i%numWidth;
      var yBaseCoord = Math.floor(i/numWidth);
      
      var dx = xBaseCoord - numWidth/2;
      var dy = yBaseCoord - numHeight/2;
      var phase = Math.sqrt(dx*dx + dy*dy)/11.759999999999998;
      var offset = (t + phase)%1;
      
      if(((xBaseCoord + yBaseCoord)%2)===0){
        offset = 1-offset;
      } 
      return "matrix(" +[1-offset, -offset, offset, 1-offset, ((xBaseCoord) *rectSize) + margin.l, ((yBaseCoord)*rectSize) + margin.t ] + ")";
    }
   });  
}