Preloads data for next transition
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<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