Animation type 1

_.md

[ Launch Inlet ]
Gist #3200444

config.json

{"description":"Animation type 1","endpoint":"","display":"svg","public":true,"require":[],"fileconfigs":{"inlet.js":{"default":true,"vim":false,"emacs":false,"fontSize":12},"config.json":{"default":true,"vim":false,"emacs":false,"fontSize":12},"_.md":{"default":true,"vim":false,"emacs":false,"fontSize":12}},"tab":"edit","display_percent":0.7,"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

var svg = d3.select("svg");

svg.append("rect")
  .attr("width", 100)
  .attr("height", 10)
  .attr("x", 0)
  .attr("y", tributary.sh / 2)
  .style("fill", "#1F00FF")
  .style("fill-opacity", 0.5)
.transition()
.duration(2000)
  .attr("width", 100)