well json 7

Preloads data for next transition

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v3.min.js"></script>
  
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    
    .axis path {
      fill: none;
      stroke: black;
      shape-rendering: crisp;
    }
    
    .axis text {
      font-family: sans-serif;
      font-size: 15px;
    }
    
  </style>
</head>

<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var margin = {top: 20, right:20, bottom: 150, left: 62};
    var width = 960 - margin.left - margin.right;
    var height = 500 - margin.top - margin.bottom;
    
    var fixDate = function (data) {
      format = d3.time.format("%Y-%m-%d");
      data.sort(function(a,b) { return a.depth - b.depth})
      data.forEach(function(d) {
        if (d.spud_date) {
          d.spud_date = format.parse(d.spud_date);
        }      
      });
    }
    
    function update(wells) {
      var newWells = d3.json("https://localhost:3000/api/nd.json", function(data) {
        newWells = data
        console.log("newWells: ",newWells);
      })
      
      fixDate(wells)
    
      var xExtent = d3.extent(wells, function(well) { return well.spud_date });
      var yExtent = d3.extent(wells, function(well) { return well.depth });

var xScale = d3.time.scale()
        .range([0, width])
        .domain(xExtent);

var yScale = d3.scale.linear()
        .range([height, 0])
        .domain(yExtent);

var color = d3.scale.category20();

var xAxis = d3.svg.axis()
        .scale(xScale)
        .orient("bottom");

var yAxis = d3.svg.axis()
        .scale(yScale)
        .orient("left");

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

svg.append("g")
        .attr("class", "axis")
        .attr("transform", "translate(0," + height + ")")
        .call(xAxis)
      .append("text")
        .attr("class", "label")
        .attr("x", width)
        .attr("y", -6)
        .style("text-anchor", "end")
        .text("Spud Date")

svg.append("g")
        .attr("class", "axis")
        .call(yAxis)
      .append("text")
        .attr("class", "label")
        .attr("transform", "rotate(-90)")
        .attr("y", 6)
        .attr("dy", ".71em")
        .style("text-anchor", "end")
        .text("Depth (ft)")

svg.selectAll("circle")
        .data(wells)
        .enter()
        .append("circle")
        .attr("class", function(d) { return d.operator; })
        .attr("cx", function(d, i) { return xScale(d.spud_date); })
        .attr("cy", function (d) { return yScale(d.depth) })
        .attr("r", function(d) { return d.cum_oil / 40000})
        .on("mouseover", function(d) { console.log(d); })   
      
      d3.select('svg')
    	.on('click', function() {
        d3.json("https://localhost:3000/api/nd.json", function(data) {
          newWells = data
          console.log("newWells: ",newWells);
      	})
        fixDate(newWells)
        svg.selectAll('circle')
          .data(newWells)
          .transition()
          .duration(1000)
          .delay(function(d,i) { return i / 20; })
          .attr("class", function(d) { return d.operator; })
          .attr("cx", function(d, i) { return xScale(d.spud_date); })
          .attr("cy", function (d) { return yScale(d.depth); })
          .attr("r", function(d) { return d.cum_oil / 40142; })
        //           	.style("fill", '#00FF00');
        
      });

}

d3.json("https://localhost:3000/api/nd.json", update)
   
   
    
    	
  </script>
</body>

https://d3js.org/d3.v3.min.js