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jghorton14/D3LineGraph.html

Last active March 16, 2021 13:50
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Simple Ajax D3 line graph. Trying to make it responsive on window resize
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D3LineGraph.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
svg {
font: 10px "Times New Roman";
}
path {
stroke-width: 2;
fill: none;
}
.axis path, .axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
.overlay {
fill: none;
pointer-events: all;
}
</style>
</head>
<div class="chart-container"></div>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.3.1.min.js"></script>
<body>
<script>
// Set the dimensions of the canvas / graph
var margin = {top: 30, right: 20, bottom: 30, left: 50},
width = 600 - margin.left - margin.right,
height = 270 - margin.top - margin.bottom;
// Parse the date / time
var parseDate = d3.time.format("%Y-%m-%d").parse;
// Parse the time for the Day
var parseMinute = d3.time.format("%H:%M").parse,
bisectDate = d3.bisector(function(d) { return d.date; }).left,
formatValue = d3.format(",.2f"),
formatCurrency = function(d) { return "$" + formatValue(d);};
// Set the ranges
var x = d3.time.scale().range([0, width]);
var y = d3.scale.linear().range([height, 0]);
// Define the axes
var xAxis = d3.svg.axis().scale(x)
.orient("bottom").ticks(5);
var yAxis = d3.svg.axis().scale(y)
.orient("left").ticks(5);
// Define the line
var valueline = d3.svg.line()
//.interpolate("basis")
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.close); });
// Adds the svg canvas
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 + ")");
// Get the minumum Value from the array to add space at the bottom of the graph
Array.min = function (array) {
return Math.min.apply(Math, array);
};
var url = "https://api.iextrading.com/1.0/stock/aapl/chart/5y";
// Get the data
$.ajax({
url: url,
success: function(data) {
// Setting global variable
var arrayClose = [];
var firstPrice = null;
var lastPrice = null;
var minimum = null;
var result = null;
var lineColor = null;
// Get the data
d3.json(url, function (error, data) {
data.forEach(function (d) {
d.date = parseDate(d.date);
d.close = +d.close;
// Adding each result to the end of the array
arrayClose.push(d.close);
// Finding the minimum value in the close price in the JSON File
minimum = Array.min(arrayClose);
// Taking .05% off of graph to dynamically show white space at the bottom of the minimum value
result = (10 / 100) * minimum;
result = minimum - result;
// Finding first elm in array
firstPrice = arrayClose[0];
// Finding last elm in array
lastPrice = arrayClose[arrayClose.length - 1];
});
if (firstPrice > lastPrice){
lineColor = "red";
} else {
lineColor = "green";
}
// Scale the range of the data
x.domain(d3.extent(data, function (d) {
return d.date;
}));
y.domain([result, d3.max(data, function (d) {
return d.close;
})]);
// Add the valueline path.
svg.append("path")
.transition()
.attr("class", "line")
.attr("stroke", lineColor)
.attr("d", valueline(data))
;
// Add the X Axis
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// Add the Y Axis
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
// Add the text label for the X axis
svg.append("text")
.attr("x", width / 2) //Dynamically moves with the graph
.attr("y", height + margin.bottom)
.style("text-anchor", "middle")
.text("Date");
// Add the text label for the Y axis
svg.append("text")
.attr("transform", "rotate(-90)")
.attr("x", 0 - (height / 2))
.attr("y", 0 - margin.left)
.attr("dy", "1em")
.style("text-anchor", "middle")
.text("Price");
// Adding the Title
svg.append("text")
.attr("x", (width / 2))
.attr("y", 0 - (margin.top / 2))
.attr("text-anchor", "middle")
.style("font-size", "16px")
.style("text-decoration", "underline")
.text("Price to Date");
//Mouseover
var focus = svg.append("g")
.attr("class", "focus")
.style("display", "none");
focus.append("line")
.attr("class", "x-hover-line hover-line")
.attr("y1", 0)
.attr("y2", height);
focus.append("line")
.attr("class", "y-hover-line hover-line")
.attr("x1", width)
.attr("x2", width);
focus.append("circle")
.attr("r", 4.5);
focus.append("text")
.attr("x", 9)
.attr("dy", ".35em");
svg.append("rect")
.attr("class", "overlay")
.attr("width", width)
.attr("height", height)
.on("mouseover", function() { focus.style("display", null); })
.on("mouseout", function() { focus.style("display", "none"); })
.on("mousemove", mousemove);
function mousemove() {
var x0 = x.invert(d3.mouse(this)[0]),
i = bisectDate(data, x0, 1),
d0 = data[i - 1],
d1 = data[i],
d = x0 - d0.date > d1.date - x0 ? d1 : d0;
focus.attr("transform", "translate(" + x(d.date) + "," + y(d.close) + ")");
focus.select(".x-hover-line").attr("y2", height - y(d.close));
focus.select(".y-hover-line").attr("x2", width + width);
}
});
}
});
</script>
</body>
</html>
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