pattern2

_.md

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Gist #4491303 [ Launch Inlet ]
Gist #4490867 [ Launch Inlet ]
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Gist #4466334 [ Launch Inlet ]
Gist #2958639

config.json

{"description":"pattern2","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}},"tab":"edit","display_percent":0.6304687500000006,"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,"hidepanel":false}

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);
  this.render();
  
}

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 svg = d3.select("svg")
var n = 4;
var cx = 200;
var cy = 200;
var opacity = 1;
var iterations = 7;
var stepSize = 1 / iterations * 2;
var toggle = 1;

for(var j = 0; j < iterations; j++){
  
  var path = new Path(svg)
  var strokeWidth = (toggle == 1 ? 1 : 1)
  path.el()
      .attr("transform","translate("+[376,262]+")rotate("+(0)+")")
      .attr('fill','none')
      .attr('stroke','#'+Math.floor(Math.random()*16777215).toString(16))
      .attr('stroke-width',strokeWidth)
  	  .attr('stroke-opacity', 0.5);
      
  
  var r = 36 + (j * 20);
  path.add(['M',r,0]);  
  for(var i = 0; i < n; i++){
    
     var cx = r * Math.cos(2.61664 * 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;
}