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