我正在尝试使用chart.js来实现这样的目标。我想根据每个年龄组显示男性/女性的数据:
以下是我的图表选项:
var options = {
layout: {
padding: {
top: 5,
}
},
scales:
{
yAxes: [{
display: true,
barPercentage: 0.4,
ticks: {
fontSize: 12
},
stacked: true,
}],
xAxes: [{
stacked: true,
}]
},
responsive: true,
maintainAspectRatio: false,
legend: {
display: false,
},
animation: {
animateScale: true,
animateRotate: true
},
};
var opt = {
type: "horizontalBar",
data: {
labels: ageGroup,
datasets: [{
label: 'Male',
data: maleData,
backgroundColor: '#2196F3',
hoverBackgroundColor: '#2196F3'
},
{
label: 'Female',
data: femaleData,
backgroundColor: '#E91E63',
hoverBackgroundColor: '#E91E63'
}]
},
options: options
};
我将femaleData数组中的正数更改为负数以实现上述结果:
for(var i = 0; i < femaleData.length; i++){
femaleData[i] = -Math.abs(femaleData[i]);
}
然而,正如您所看到的,0的y轴不是集中的,因为它被推到右侧,因为左侧有更多的数据。我甚至不确定这是否是以相反方向设置图表的正确方法。有什么想法吗?
先谢谢!
答案 0 :(得分:2)
根据OP 的评论部分
中提到的要求ꜱʜᴏᴡᴘᴏꜱɪᴛɪᴠᴇᴠᴀʟᴜᴇꜱᴏɴx-ᴀxɪꜱ
对x轴刻度使用以下回调函数:
callback: function(t, i) {
return t < 0 ? Math.abs(t) : t;
}
ꜱʜᴏᴡᴘᴏꜱɪᴛɪᴠᴇᴠᴀʟᴜᴇᴏɴᴛᴏᴏʟᴛɪᴘ
对工具提示使用以下回调函数:
callbacks: {
label: function(t, d) {
var datasetLabel = d.datasets[t.datasetIndex].label;
var xLabel = Math.abs(t.xLabel);
return datasetLabel + ': ' + xLabel;
}
}
ᴡᴏʀᴋɪɴɢᴡᴏʀᴋɪɴɢxᴀᴍᴘʟᴇᴀᴍᴘʟᴇ
var ageGroup = ['0-10', '11-20', '21-30', '31-40', '41-50', '51-60', '61-70', '71-80', '80+'];
var maleData = [30, 0, 0, 0, 10, 0, 0, 0, 0];
var femaleData = [0, 0, 0, -20, -50, -20, 0, 0, 0];
var options = {
layout: {
padding: {
top: 5,
}
},
scales: {
yAxes: [{
display: true,
barPercentage: 0.4,
ticks: {
fontSize: 12
},
stacked: true,
}],
xAxes: [{
stacked: true,
ticks: {
callback: function(t, i) {
return t < 0 ? Math.abs(t) : t;
}
}
}]
},
tooltips: {
callbacks: {
label: function(t, d) {
var datasetLabel = d.datasets[t.datasetIndex].label;
var xLabel = Math.abs(t.xLabel);
return datasetLabel + ': ' + xLabel;
}
}
},
responsive: true,
//maintainAspectRatio: false,
legend: {
display: false,
},
animation: {
animateScale: true,
animateRotate: true
},
};
var opt = {
type: "horizontalBar",
data: {
labels: ageGroup,
datasets: [{
label: 'Male',
data: maleData,
backgroundColor: '#2196F3',
hoverBackgroundColor: '#2196F3'
}, {
label: 'Female',
data: femaleData,
backgroundColor: '#E91E63',
hoverBackgroundColor: '#E91E63'
}]
},
options: options
};
new Chart(ctx, opt);
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.min.js"></script>
<canvas id="ctx"></canvas>