84 lines
2.9 KiB
JavaScript
84 lines
2.9 KiB
JavaScript
'use strict';
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var DonutChart = {
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init: function(url, html_tag_attr, label_accessor, value_accessor, color_accessor, inner_radius=80){
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this.url = url;
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this.html_tag_attr = html_tag_attr;
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this.label_accessor = label_accessor;
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this.value_accessor = value_accessor;
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this.color_accessor = color_accessor;
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this.inner_radius = inner_radius;
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this.render();
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this.update();
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},
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prepare_data: function(){
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var self = this;
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return d3.json(urlRoot+this.url, config_requestArguments).then(function(dataset){
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self.data = [];
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var total_val = d3.sum(dataset, self.value_accessor);
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dataset.forEach(function(d){
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self.data.push({
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label: self.label_accessor(d),
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value: self.value_accessor(d) / total_val * 100,
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value_raw: self.value_accessor(d),
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color: self.color_accessor(d)
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})
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});
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});
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},
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render: function(){
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this.svg = d3.select(this.html_tag_attr).append("svg");
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this.pie_group = this.svg
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.append("g");
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},
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update: function(){
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var self = this;
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this.prepare_data().then(function(){
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var width = $(self.svg.node()).width();
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var height = $(self.svg.node()).height();
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var mini_dim = d3.min([width, height]);
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var margin = mini_dim * 0.05;
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var outerRadius = (mini_dim / 2) - margin;
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var innerRadius = outerRadius * self.inner_radius / 100;
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var group_vertical_position = height / 2
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var group_horizontal_position = width / 2
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var pie = d3.pie()
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.value(function(d){ return d.value; });
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var arc = d3.arc()
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.outerRadius(outerRadius)
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.innerRadius(innerRadius);
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self.pie_group
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.attr("transform", "translate(" + group_horizontal_position + "," + group_vertical_position + ")")
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.selectAll("path")
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.data(pie(self.data))
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.enter()
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.append("path");
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self.pie_group
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.selectAll("path")
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.attr("d", function(d){ return arc(d); })
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.attr("fill", function(d){ return self.color_accessor(d.data); });
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});
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},
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}
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// Exemple d'utilisation :
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// get_donut_chart(
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// "custom/script/ajax/my_kpi.php",
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// "my_html_tag_attr",
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// function(d){ return d.label; },
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// function(d){ return d.value; },
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// function(d){ return d.color; },
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// 0.75
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// );
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var get_donut_chart = function(url, html_tag_attr, label_accessor, value_accessor, color_accessor, inner_radius=80){
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var my_donut = {};
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Object.assign(my_donut, DonutChart);
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my_donut.init(url, html_tag_attr, label_accessor, value_accessor, color_accessor, inner_radius);
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return my_donut;
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};
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