pattern - magic eye

_.md

[ Launch: pattern ] 4647186 by roundrobin
[ Launch: pattern ] 4647178 by roundrobin
[ Launch Inlet ]
Gist #4490867 [ Launch Inlet ]
Gist #4471204 [ Launch Inlet ]
Gist #4466334 [ Launch Inlet ]
Gist #2958639

config.json

{"description":"pattern - magic eye","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}},"play":false,"loop":false,"restart":false,"autoinit":true,"pause":true,"loop_type":"period","bv":false,"nclones":15,"clone_opacity":0.4,"duration":3000,"ease":"linear","dt":0.01,"tab":"edit","display_percent":0.6304687500000006,"hidepanel":false,"fullscreen":false,"thumbnail":"http://i.imgur.com/yaEbvXg.png"}

inlet.js

function Path(canvas, path){
  
  this.dataPoints = [];
  
  if(path != undefined){
      this.path = path;
  
  } else {
    
    this.path = canvas.append('svg:path')
    .attr("stroke","black")
    .attr("stroke-width",3)
    .attr("fill","none");
  
  }
   
}
Path.prototype.el  = function(wayPoint){
	return this.path;  
}

Path.prototype.add  = function(wayPoint){
  this.dataPoints.push(wayPoint);

}

Path.prototype.render  = function(){
  	
   this.path.attr("d",this.pathWay());
}

Path.prototype.pathWay  = function(){
  var way = '';
  
  for(var i=0; i < this.dataPoints.length; i++){
    var elem = this.dataPoints[i];
    	way += elem.join(' ');
  }
  return way;
} 

var colors = [
    '#0900E2'
    , '#4881A3'
    , '#5AC505'
    , '#253FA5'
    
]
var k, color_scale;
//interpolate over multiple colors


var sw = tributary.sw;
//make the sin waves extend past the width a little
sw += .1 * sw
var sh = tributary.sh
var svg = d3.select("svg")

svg.append("rect")
    .attr("width", sw)
    .attr("height", sh)
    .attr("fill", "#F1F1F1")
var defs = d3.select('svg').append('defs')

var pattern = defs.append('pattern')
    .attr('id','pattern1')
    .attr('patternTransform','')
    .attr('height',100)
    .attr('width',100)
    .attr('patternUnits','userSpaceOnUse')


var n = 3;

var cx = 200;
var cy = 200;

var opacity = 1;

var iterations = 3.84;

var stepSize = 1 / iterations * 2;


var toggle = 1;

for(var j = 0; j < iterations; j++){
  
  var path = new Path(pattern)
  var strokeWidth = (toggle == 1 ? 6 : 4)
  path.el()
      .attr('fill','none')
      .attr('stroke','#2A1C1C')
      .attr('stroke-width',strokeWidth)
  	  .attr('stroke-opacity', 1)
  .attr("transform","translate("+[51,60]+")rotate("+30+")")
  var r = -9 + (j * 38);
  path.add(['M',r,0]);  
  for(var i = 0; i < n; i++){
    
     var cx = r * Math.cos(2 * Math.PI * i / n);
     var cy = r * Math.sin(2 * Math.PI * i / n);
      
     path.add(['L',cx,cy]);
  }
  path.add(['z']);
  console.log(toggle);
  toggle *= -1;
  path.render();
}
 


d3.select('svg').append('rect')
        .attr('height',tributary.sh)
      .attr('width',tributary.sw)
  	  .attr('fill','url(#pattern1)')