我需要带有JSON的柱形图数据,以便使此图表自动化,但是我不知道该怎么做。
这是我的JS代码:
function drawChart() {
const container = document.querySelector('#chart');
let chart = new google.visualization.ColumnChart(container);
//Informações data.json
let dataRequest = new Request("./datas/data.json");
fetch(dataRequest)
.then(function(resp) {
return resp.json();
})
.then(function(data) {
console.log(data);
});
// Informações gráficos
let data = new google.visualization.arrayToDataTable([
["Volume", "Valor"],
["DA", 67],
["CIF", 23],
["Expurgo", 45]
]);
const options = {
titlePosition: 'none',
colors: ['#ed4a0e', '#15466e'],
backgroundColor: 'transparent',
animation: {
startup: true,
duration: 1000,
easing: 'out',
},
hAxis: { textStyle: { color: 'white' }, titleTextStyle: { color: 'white', fontSize: 15 } },
vAxis: { textStyle: { color: 'white' }, titleTextStyle: { color: 'white', fontSize: 15 } },
chartArea: { width: 250, height: 200 },
legend: {
textStyle: { color: '#ffffff', fontSize: 13 }
}
};
chart.draw(data, options)
};
我的json:
[
["Volume", "Valor"],
["DA", 67],
["CIF", 23],
["Expurgo", 45]
]
我以前从未这样做过,如果有人帮助我,需要一点帮助(对不起,我的英语不好)
添加“ false”作为最后一个参数
var data = google.visualization.arrayToDataTable([
["Volume", "Valor"],
["DA", 67],
["CIF", 23],
["Expurgo", 45]
],
false); // 'false' means that the first row contains labels, not data.