ail-framework/var/www/static/js/d3/barchart_stack.js

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//Requirement: - D3v5
// - jquery
// data input: var data = [{ date: "2024-02-21", down: 0, up: 0}, { date: "2024-02-22", down: 1, up: 3}]
//
const barchart_stack = (container_id, data, options) => {
const defaults = {
style: {
stroke: "rgb(0, 0, 0)",
strokeWidth: 2,
strokeWidthHover: 4.5
},
margin: {top:20, right:90, bottom:55, left:0},
width: 500,
height: 500
};
options = $.extend(true, defaults, options);
let width_graph = options.width - options.margin.left - options.margin.right;
let height_graph = options.height - options.margin.top - options.margin.bottom;
let x = d3.scaleBand().rangeRound([0, width_graph]).padding(0.1);
let y = d3.scaleLinear().rangeRound([height_graph, 0]);
let xAxis = d3.axisBottom(x);
let yAxis = d3.axisLeft(y);
let color = d3.scaleOrdinal(d3.schemeSet3);
let svg = d3.select("#"+container_id).append("svg")
.attr("viewBox", "0 0 "+width_graph+" "+options.height)
.attr("width", options.width)
.attr("height", options.height)
.append("g")
.attr("transform", "translate("+options.margin.left+","+options.margin.top+")");
// popover
$('[data-toggle="popover"]').popover({
placement: 'top',
container: 'body',
html : true,
});
const mouseover = function(d) {
$(this).popover({
title: d.name,
placement: 'top',
container: 'body',
trigger: 'manual',
html : true,
content: function() {
return d.label + "<br/>num: " + d3.format(",")(d.value ? d.value: d.y1 - d.y0);
}
});
$(this).popover('show')
}
const mouseleave = function(d) {
$('.popover').each(function() {
$(this).remove();
});
}
let labelVar = 'date';
let varNames = d3.keys(data[0])
.filter(function (key) { return key !== labelVar;});
data.forEach(function (d) {
let y0 = 0;
d.mapping = varNames.map(function (name) {
return {
name: name,
label: d[labelVar],
y0: y0,
y1: y0 += +d[name]
};
});
d.total = d.mapping[d.mapping.length - 1].y1;
});
x.domain(data.map(function (d) { return (d.date); }));
y.domain([0, d3.max(data, function (d) { return d.total; })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height_graph + ")")
.call(xAxis)
.selectAll("text")
.style("fill", "steelblue")
.attr("transform", "rotate(-18)" )
//.attr("transform", "rotate(-40)" )
.style("text-anchor", "end");
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end");
let selection = svg.selectAll(".series")
.data(data)
.enter().append("g")
.attr("transform", function (d) { return "translate(" + x((d.date)) + ",0)"; });
selection.selectAll("rect")
.data(function (d) { return d.mapping; })
.enter().append("rect")
.attr("width", x.bandwidth())
.attr("y", function (d) { return y(d.y1); })
.attr("height", function (d) { return y(d.y0) - y(d.y1); })
.style("fill", function (d) { return color(d.name); })
.style("stroke", "grey")
.on("mouseover", mouseover)
.on("mouseout", mouseleave)
data.forEach(function(d) {
if(d.total != 0){
svg.append("text")
.attr("dy", "-.35em")
.attr('x', x(d.date) + x.bandwidth()/2)
.attr('y', y(d.total))
.style("text-anchor", "middle")
.text(d.total);
}
});
// drawLegend(varNames)
let legend = svg.selectAll(".legend")
.data(varNames.slice().reverse())
.enter().append("g")
.attr("transform", function (d, i) { return "translate(0," + i * 20 + ")"; });
legend.append("rect")
.attr("x", width_graph)
.attr("width", 10)
.attr("height", 10)
.style("fill", color)
.style("stroke", "grey");
legend.append("text")
.attr("x", width_graph - 2)
.attr("y", 6)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function (d) { return d; });
return svg
}