Tributary inlet

_.md

[ Launch: Tributary inlet ] ad34a4c372926cfb29c3 by ramnathv

app.css

svg {
  font: 10px sans-serif;
}

.line {
  fill: none;
  stroke: #000;
  stroke-width: 1.5px;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

config.json

{"description":"Tributary inlet","endpoint":"","display":"svg","public":true,"require":[],"fileconfigs":{"inlet.js":{"default":true,"vim":false,"emacs":false,"fontSize":12},"app.css":{"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}},"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,"ajax-caching":true,"thumbnail":"http://i.imgur.com/m9xqhZI.png"}

inlet.js

var n = 40,
    random = d3.random.normal(0, .2),
    data = d3.range(n).map(random);

// set margins
var margin = {top: 20, right: 20, bottom: 20, left: 40},
    width = 303 - margin.left - margin.right,
    height = 127 - margin.top - margin.bottom;

// set scales
var x = d3.scale.linear()
    .domain([0, n - 1])
    .range([0, width]);

var y = d3.scale.linear()
    .domain([-1, 1])
    .range([height, 0]);

// set line generator
var line = d3.svg.line()
    .x(function(d, i) { return x(i); })
    .y(function(d, i) { return y(d); })
    .interpolate("basis")

// initialize svg container...
var svg = d3.select("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");


// ... add clip path
svg.append("defs").append("clipPath")
    .attr("id", "clip")
  .append("rect")
    .attr("width", width)
    .attr("height", height);

/*
svg.append("g")
    .attr("class", "x axis")
    .attr("transform", "translate(0," + height + ")")
    .call(d3.svg.axis().scale(x).orient("bottom"));


svg.append("g")
    .attr("class", "y axis")
    .call(d3.svg.axis().scale(y).orient("left"));
*/
var path = svg.append("g")
    .attr("clip-path", "url(#clip)")
  .append("path")
    .datum(data)
    .attr("class", "line")
    .attr("d", line);

tick();

function tick() {

  // push a new data point onto the back
  data.push(random());

  // redraw the line, and slide it to the left
  path
      .attr("d", line)
      .attr("transform", null)
    .transition()
      .duration(500)
      .ease("linear")
      .attr("transform", "translate(" + x(-1) + ",0)")
      .each("end", tick);

  // pop the old data point off the front
  data.shift();

}