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// set the dimensions and margins of the graph
var margin = {top: 100, right: -10, bottom: 0, left: -10},
width = 538 - margin.left - margin.right,
height = 350 - margin.top - margin.bottom;
// parse the date / time
var parseTime = d3.timeParse("%Y");
// set the ranges
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([height, 0]);
// define the line
var valueline = d3.line()
.x(function(d) { return x(d.Time); })
.y(function(d) { return y(d.Diff); });
// define the line
var valueline2 = d3.line()
.x(function(d) { return x(d.Time); })
.y(function(d) { return y(d.Hashrate); });
// append the svg obgect to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
var svg = d3.select("#graphContainer").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.attr("class", "graph")
.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")");
function draw(data, blocks) {
var data = data[blocks];
let graphHeight = 0;
// format the data
data.forEach(function(d) {
// d.Time = parseTime(d.Time);
console.log(d.Time);
d.Diff = +d.Diff;
d.Hashrate = +d.Hashrate;
graphHeight = d.Diff;
});
// sort years ascending
data.sort(function(a, b){
return a["Block"]-b["Block"];
})
// Scale the range of the data
x.domain(d3.extent(data, function(d) { return d.Time; }));
y.domain([0, d3.max(data, function(d) {
return Math.max(d.Diff, d.Hashrate); })]);
// Add the valueline path.
svg.append("path")
.data([data])
.attr("class", "line1")
.attr("d", valueline);
// Add the valueline path.
svg.append("path")
.data([data])
.attr("class", "line2")
.attr("d", valueline2);
// Add the X Axis
svg.append("g")
.attr("transform", "translate(0," + (height - 20) + ")")
.call(d3.axisBottom(x));
// // Add the Y Axis
// svg.append("g")
// .call(d3.axisLeft(y));
}
// Get the data
d3.json("./api/hashrate.json", function(error, data) {
if (error) throw error;
data.blocks.splice(0, data.blocks.length - 5 );
// console.log(data);
// trigger render
draw(data, "blocks");
});