circle-animation

_.md

[ Launch: circle-animation ] 7328929 by tanatana

config.json

{"description":"circle-animation","endpoint":"","display":"svg","public":true,"require":[],"fileconfigs":{"inlet.js":{"default":true,"vim":false,"emacs":false,"fontSize":12}},"fullscreen":false,"play":false,"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}

inlet.js

var seed = new Array(32);
(function(){
	var i;
	for(i = 0; i < seed.length;i++){ seed[i] = new Array(32)}
})();

var svg = d3.select("svg")

var trigonometricScale = d3.scale.linear()
	.domain([0, seed.length])
	.range([-3.1415, 3.1415]);

var selection = svg.selectAll("circle").data(seed);

selection.enter().append("circle")
	.attr("cx", function(d,i) { return Math.cos(trigonometricScale(i))*1 + 300 })
	.attr("cy", function(d,i) { return Math.sin(trigonometricScale(i))*1 + 300 })
	.attr("r", 1)
	.style("fill", "#000")

setTimeout(function(){
	selection
		.transition()
		.ease("cubic-in-out")
		.duration(1000)
		.attr("cx", function(d,i) { return Math.cos(trigonometricScale(i))*150 + 300 })
		.attr("cy", function(d,i) { return Math.sin(trigonometricScale(i))*150 + 300 })
	    .attr("r", function(d,i){return 3})
		.style("fill", "#000")
},10);