对于下面这个折线图，时间排序只能在外部排吗？
解决方案
VChart数据配置的时候可以根据字段进行排序，字段类型分为离散类型和连续类型，需要根据字段类型配置排序以及排序顺序
代码示例
yaml
const spec = {
type: 'line',
data: {
values: [
{ date: '2023-01-01', type: 'Product A', value: 99.9 },
{ date: '2023-01-02', type: 'Product C', value: 93.4 },
{ date: '2023-01-01', type: 'Product B', value: 96.6 },
{ date: '2023-01-02', type: 'Product A', value: 96.7 },
{ date: '2023-01-02', type: 'Product B', value: 91.1 },
{ date: '2023-01-03', type: 'Product A', value: 100.2 },
{ date: '2023-01-03', type: 'Product B', value: 99.4 },
{ date: '2023-01-03', type: 'Product C', value: 91.7 },
{ date: '2023-01-04', type: 'Product A', value: 104.7 },
{ date: '2023-01-05', type: 'Product B', value: 96 },
{ date: '2023-01-05', type: 'Product C', value: 92.3 },
{ date: '2023-01-06', type: 'Product A', value: 95.6 },
{ date: '2023-01-06', type: 'Product B', value: 89.1 },
{ date: '2023-01-09', type: 'Product B', value: 100.6},
{ date: '2023-01-09', type: 'Product C', value: 103.8},
{ date: '2023-01-04', type: 'Product C', value: 93.1 },
{ date: '2023-01-04', type: 'Product B', value: 108.1 },
{ date: '2023-01-07', type: 'Product A', value: 95.3 },
{ date: '2023-01-07', type: 'Product B', value: 89.2 },
{ date: '2023-01-07', type: 'Product C', value: 95.7 },
{ date: '2023-01-08', type: 'Product A', value: 96.1 },
{ date: '2023-01-08', type: 'Product B', value: 97.6 },
{ date: '2023-01-09', type: 'Product A', value: 96.1 },
{ date: '2023-01-10', type: 'Product A', value: 101.6 },
{ date: '2023-01-10', type: 'Product B', value: 108.3 },
{ date: '2023-01-10', type: 'Product C', value: 108.9 }
],
fields: {
date: {
type: 'ordinal', // 数据维度 date 的类型是离散类型
sortIndex: 1 // 数据会按照 date 进行排序
},
}
},
xField: 'date',
yField: 'value',
seriesField: 'type',
point: {
visible: false
},
line: {
style: {
lineWidth: 2
}
},
legends: { visible: true },
axes: [
{
orient: 'bottom',
// paddingInner: 1,
// paddingOuter: 0,
trimPadding: true
}
]
};
const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderSync();
// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;结果展示
