AIL-framework/var/www/static/js/d3/pie_chart.js

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JavaScript
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2024-02-28 14:21:33 +01:00
//Requirement: - D3v5
// - jquery
// data input: var data = [{"name":"down","value":0},{"name":"up","value":3}]
const pie_chart = (container_id, data, options) => {
const defaults = {
style: {
strokeWidth: 2,
},
opacity: .8,
padding: 10,
width: 200,
height: 200
};
options = $.extend(true, defaults, options);
let radius = Math.min(options.width - options.padding, options.height - options.padding) / 2;
let color = d3.scaleOrdinal(d3.schemeSet3);
const tooltip = d3.select("#"+container_id).append("div")
.style("opacity", 0)
.style("padding", "2px");
const mouseover = function(d) {
tooltip.style("opacity", 1)
tooltip.html("<h4>"+d.data.name + ": </h4>" + d.data.value)
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY - 28) + "px");
}
const mouseleave = function(d) {
tooltip.style("opacity", 0)
}
let svg = d3.select("#"+container_id).append('svg')
.attr("width", options.width)
.attr("height", options.height)
.attr('viewBox','0 0 '+Math.min(options.width, options.height) +' '+Math.min(options.width, options.height) )
.attr('preserveAspectRatio','xMinYMin')
let g_pie = svg.append('g')
.attr('transform', 'translate(' + (options.width/2) + ',' + (options.height/2) + ')');
let arc_pie = d3.arc()
.innerRadius(0)
.outerRadius(radius);
let pie_pie = d3.pie()
.value(function(d) { return d.value; })
.sort(null);
g_pie.selectAll('path')
.data(pie_pie(data))
.enter()
.append("g")
.append('path')
.attr('d', arc_pie)
.attr('fill', (d,i) => color(i))
.on("mouseover", mouseover)
.on("mouseleave", mouseleave)
.style('opacity', options.opacity)
.style('stroke', 'white');
return svg
}