just another inlet to tributary

inlet.js

// Original at http://www.jasondavies.com/sunflower-phyllotaxis/
//forked from Kai's (syntagmatic) implementation 
//http://enjalot.com/cypress/3114111/
var w = tributary.sw,
    h = tributary.sh,
    p = 43,
    n = 2738,
    scale = 69,
    radius = 36,
    c = 0.17741,
    theta = 0.6;
var colors = ["#D5CE2A", "#D30054", "#6800B9"];
"#67007A"
var fopacity = 0.35;
var sopacity = .5;
var stroke_color = "#F2FC00";
var stroke_width =-0;
    

var colour = d3.scale.linear().domain([0, n / 2, n])
    .interpolate(d3.cie.interpolateLch)
    .range(colors);
tributary.loop = "pingpong";
tributary.init = function(g) {

var vis = g.append("g")
    .attr("transform", "translate(" + (p + w / 2) + "," + (p + h / 2) + ")");

var points = d3.range(1, n)

vis.selectAll("circle")
    .data(points)
  .enter().append("circle")
    .attr("r", radius)
  .style("fill-opacity", fopacity)
  .style("stroke", stroke_color)
  .style("stroke-width", stroke_width)
  .style("stroke-opacity", sopacity)
  .style("fill", function(d, i) { return colour(i); })   ;

};
tributary.run = function(g,t) {
  /*angles = [Math.PI * (1 - Math.sqrt(5)),
             Math.PI * (2 - Math.sqrt(5))];
  	var angle = d3.interpolateNumber(angles[0], angles[1])(t);*/
  var angle = Math.PI * (theta - Math.sqrt(5)) + t/50;
    g.selectAll("circle")

    .attr("cx", function(d) { 
        var r = c * Math.sqrt(d);
      	var a = d * angle;
        return scale * r * Math.cos(a); 
    })
    .attr("cy", function(d) { 
      	var r = c * Math.sqrt(d);
    	var a = d * angle;
      	return scale * r * Math.sin(a); 
    })

};