对于像 (https://www.visactor.io/vchart/demo/marker/mark-line-basic) 这样使用 markLine 进行轴空间定位的图表, 我想让markLine中的标签显示线的开头、线的结尾或线段的中间,我怎样才能实现这一点?
不同的图表库解决方案不同,根据你给的demo,配置
markLine.label.position
到想要的场景即可。
markLine.label.position
用于配置标记线的标签位置(标签相对于线的位置)。
position
可以配置为'start'
。position
可以配置为'end'
。position
可以配置为'middle'
。const spec = {
type: 'scatter',
padding: [12, 20, 12, 12],
xField: 'x',
yField: 'y',
sizeField: 'z',
size: {
type: 'linear',
range: [20, 80]
},
axes: [
{ orient: 'bottom', type: 'linear', min: 60, max: 95 },
{ orient: 'left', type: 'linear', min: 0, max: 200 }
],
point: {
style: {
fillOpacity: 0.25,
lineWidth: 1,
stroke: '#6690F2',
fill: '#6690F2'
}
},
label: {
visible: true,
position: 'center',
overlap: {
avoidBaseMark: false
},
style: {
stroke: '#fff',
lineWidth: 1
}
},
markLine: [
{
x: 65,
label: {
visible: true,
position: 'end',
text: 'Safe fat intake 65g/day',
style: {
textAlign: 'left',
textBaseline: 'top',
fill: '#000',
dx: 10
},
labelBackground: {
visible: false
}
},
line: {
style: {
stroke: '#000',
lineDash: [0]
}
}
},
{
y: 50,
label: {
visible: true,
position: 'end',
text: 'Safe sugar intake 50g/day',
style: {
textAlign: 'right',
textBaseline: 'bottom',
fill: '#000'
},
labelBackground: {
visible: false
}
},
line: {
style: {
stroke: '#000',
lineDash: [0]
}
}
}
],
tooltip: {
mark: {
title: {
value: datum => datum.country
}
}
},
data: {
id: 'data',
values: [
{ x: 95, y: 95, z: 13.8, name: 'BE', country: 'Belgium' },
{ x: 86.5, y: 102.9, z: 14.7, name: 'DE', country: 'Germany' },
{ x: 80.8, y: 91.5, z: 15.8, name: 'FI', country: 'Finland' },
{ x: 80.4, y: 102.5, z: 12, name: 'NL', country: 'Netherlands' },
{ x: 80.3, y: 86.1, z: 11.8, name: 'SE', country: 'Sweden' },
{ x: 78.4, y: 70.1, z: 16.6, name: 'ES', country: 'Spain' },
{ x: 74.2, y: 68.5, z: 14.5, name: 'FR', country: 'France' },
{ x: 73.5, y: 83.1, z: 10, name: 'NO', country: 'Norway' },
{ x: 71, y: 93.2, z: 24.7, name: 'UK', country: 'United Kingdom' },
{ x: 69.2, y: 57.6, z: 10.4, name: 'IT', country: 'Italy' },
{ x: 68.6, y: 20, z: 16, name: 'RU', country: 'Russia' },
{ x: 65.5, y: 126.4, z: 35.3, name: 'US', country: 'United States' },
{ x: 65.4, y: 50.8, z: 28.5, name: 'HU', country: 'Hungary' },
{ x: 63.4, y: 51.8, z: 15.4, name: 'PT', country: 'Portugal' },
{ x: 64, y: 82.9, z: 31.3, name: 'NZ', country: 'New Zealand' }
]
}
};
在线演示:https://codesandbox.io/s/mark-line-basic-srhwq3
位置:“开始”:
位置:“中间”:
位置:“结束”:
markLine演示:https://www.visactor.io/vchart/demo/marker/mark-line-basic
markLine教程:https://www.visactor.io/vchart/guide/tutorial_docs/Chart_Concepts/marker
相关api:https://www.visactor.io/vchart/option/barChart#markLine.label.position