来自chart.js的优秀且免费的库。我正在将图表从Google图表转移到chart.js,因为我可以脱机使用它们,并且它似乎对窗口大小的更改更敏感。此外,我意识到我的中国观众看不到我的Google排行榜,因为在中国禁止了Google服务。
我一直在阅读有关堆叠式垂直条形图的文档,但是我不知道如何制作这样的图表。在所有看到的堆叠条形图中的所有示例中,每个条的项目数均相同。
我只能制作两个垂直堆叠的数据集吗?这是因为右边的栏比左边的栏有更多的项目。还是我需要包含更多项目的栏的n
数据集(n
即项目数)?
我想为每个(堆叠)栏分组一个数据集,但是我不能。
var ctx = document.getElementById("barChart").getContext('2d');
var labels = ["standing costs", "running costs"];
var dataset = [
{
type: 'bar',
label: ["cost1", "cost2", "cost3", "cost4"],
data: [1, 2, 1, 3],
stack: "standing costs",
backgroundColor: [
'navy',
'blue',
'aqua',
'teal'
]
},
{
type: 'bar',
label: ["cost5", "cost6", "cost7", "cost8"],
data: [5, 1, 3, 0],
stack: "running costs",
backgroundColor: [
'green',
'lime',
'yellow',
'white'
]
}
];
var options = {
scales: {
xAxes: [{
stacked: true
}],
yAxes: [{
stacked: true
}]
}
};
var content = {
type: 'bar',
data: {
labels: labels,
datasets: dataset
},
options
};
new Chart(ctx, content);
@import url("https://cdnjs.cloudflare.com/ajax/libs/colors/1.0/colors.min.css");
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.0/Chart.bundle.min.js"></script>
<canvas id="barChart"></canvas>
快速解决方案:
var chart = new Chart(ctx, {
type: 'bar',
data: {
labels: ['Standing costs', 'Running costs'], // responsible for how many bars are gonna show on the chart
// create 12 datasets, since we have 12 items
// data[0] = labels[0] (data for first bar - 'Standing costs') | data[1] = labels[1] (data for second bar - 'Running costs')
// put 0, if there is no data for the particular bar
datasets: [{
label: 'Washing and cleaning',
data: [0, 8],
backgroundColor: '#22aa99'
}, {
label: 'Traffic tickets',
data: [0, 2],
backgroundColor: '#994499'
}, {
label: 'Tolls',
data: [0, 1],
backgroundColor: '#316395'
}, {
label: 'Parking',
data: [5, 2],
backgroundColor: '#b82e2e'
}, {
label: 'Car tax',
data: [0, 1],
backgroundColor: '#66aa00'
}, {
label: 'Repairs and improvements',
data: [0, 2],
backgroundColor: '#dd4477'
}, {
label: 'Maintenance',
data: [6, 1],
backgroundColor: '#0099c6'
}, {
label: 'Inspection',
data: [0, 2],
backgroundColor: '#990099'
}, {
label: 'Loan interest',
data: [0, 3],
backgroundColor: '#109618'
}, {
label: 'Depreciation of the vehicle',
data: [0, 2],
backgroundColor: '#109618'
}, {
label: 'Fuel',
data: [0, 1],
backgroundColor: '#dc3912'
}, {
label: 'Insurance and Breakdown cover',
data: [4, 0],
backgroundColor: '#3366cc'
}]
},
options: {
responsive: false,
legend: {
position: 'right' // place legend on the right side of chart
},
scales: {
xAxes: [{
stacked: true // this should be set to make the bars stacked
}],
yAxes: [{
stacked: true // this also..
}]
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.min.js"></script>
<canvas id="ctx" width="700"></canvas>
道歉,没有给出解释。
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我来说两句