amis2/docs/zh-CN/components/chart.md
hsm-lv e6d2b2a035
fix:修复部分组件事件动作问题&补充组件动作表文档&规范事件动作参数类型 (#4152)
* fix:修复部分组件事件动作问题&补充组件动作表文档&规范事件动作参数类型

* fix:修复部分组件事件动作问题&补充组件动作表文档&规范事件动作参数类型

* fix:input-range类型声明问题

* fix:input-range单测问题

* fix:input-range单测u snapshot
2022-04-26 21:12:00 +08:00

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---
title: Chart 图表
description:
type: 0
group: ⚙ 组件
menuName: Chart 图标
icon:
order: 34
---
图表渲染器,采用 echarts 渲染,配置格式跟 echarts 相同,[echarts 配置文档](https://echarts.apache.org/zh/option.html#title)
## 基本用法
```schema: scope="body"
{
"type": "chart",
"api": "/api/mock2/chart/chart",
"interval": 5000
}
```
api 返回支持两种格式,一种是直接返回完整 echarts 配置,数据包含在配置里,具体格式请参考后面的静态数据写法,另一种是返回纯数据,具体请参考动态数据写法。
## 静态数据
在 `config` 里填写完整的 echarts 配置,这里的数据是静态的。
```schema: scope="body"
{
"type": "chart",
"config": {
"title": {
"text": "极坐标双数值轴"
},
"legend": {
"data": [
"line"
]
},
"polar": {
"center": [
"50%",
"54%"
]
},
"tooltip": {
"trigger": "axis",
"axisPointer": {
"type": "cross"
}
},
"angleAxis": {
"type": "value",
"startAngle": 0
},
"radiusAxis": {
"min": 0
},
"series": [
{
"coordinateSystem": "polar",
"name": "line",
"type": "line",
"showSymbol": false,
"data": [
[
0,
0
],
[
0.03487823687206265,
1
],
[
0.06958655048003272,
2
],
[
0.10395584540887964,
3
],
[
0.13781867790849958,
4
],
[
0.17101007166283433,
5
],
[
0.2033683215379001,
6
],
[
0.2347357813929454,
7
],
[
0.26495963211660245,
8
],
[
0.2938926261462365,
9
],
[
0.3213938048432697,
10
]
]
}
],
"animationDuration": 2000
},
"clickAction": {
"actionType": "dialog",
"dialog": {
"title": "详情",
"body": [
{
"type": "tpl",
"tpl": "<span>当前选中值 ${value|json}<span>"
},
{
"type": "chart",
"api": "/api/mock2/chart/chart1"
}
]
}
}
}
```
## 动态数据
如果要实现动态数据,需要在 config 中做调整,比如将前面的例子改成如下写法
```schema: scope="body"
{
"type": "chart",
"api": "/api/mock2/chart/chartData",
"config": {
"xAxis": {
"type": "category",
"data": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
},
"yAxis": {
"type": "value"
},
"series": [{
"data": "${line}",
"type": "line"
}]
}
}
```
其中 api 返回内容是如下写法,可以看到通过[数据映射](../../docs/concepts/data-mapping)语法,我们可以将 api 放回结果中的 line 字段作为折线的数据。
```json
{
"status": 0,
"msg": "ok",
"data": {
"line": [65, 63, 10, 73, 42, 21]
}
}
```
除了 `config` 中的 `data``config` 里的其它属性也都支持数据映射,还能支持数据映射中的各种过滤器。
### 使用上层数据接口
有时候数据是在上层获取的,比如通过 service 中返回了数据,这时需要通过 `trackExpression` 来指定跟踪什么数据,比如下面的例子,数据是从 service 获取的就需要配置 `trackExpression`
```schema: scope="body"
{
"type": "service",
"api": "/api/mock2/chart/chartData",
"interval": 3000,
"body": [
{
"type": "chart",
"trackExpression": "${line}",
"config": {
"xAxis": {
"type": "category",
"data": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
},
"yAxis": {
"type": "value"
},
"series": [{
"data": "${line}",
"type": "line"
}]
}
}
]
}
```
## 配置图表点击行为
可以通过配置`"clickAction": {}`,来指定图表节点的点击行为,支持 amis 的 [行为](./action)。
然后在配置的行为中可以通过 [数据链](../../docs/concepts/datascope-and-datachain) 获取到 [echarts 鼠标事件](https://echarts.apache.org/zh/api.html#events.%E9%BC%A0%E6%A0%87%E4%BA%8B%E4%BB%B6.click) 的值,例如下面例子中可以通过`${value|json}`获取到点击节点的`传入的数据值`
> 点击下面坐标中的节点查看效果!
```schema: scope="body"
{
"type": "chart",
"config": {
"title": {
"text": "极坐标双数值轴"
},
"legend": {
"data": [
"line"
]
},
"polar": {
"center": [
"50%",
"54%"
]
},
"tooltip": {
"trigger": "axis",
"axisPointer": {
"type": "cross"
}
},
"angleAxis": {
"type": "value",
"startAngle": 0
},
"radiusAxis": {
"min": 0
},
"series": [
{
"coordinateSystem": "polar",
"name": "line",
"type": "line",
"showSymbol": false,
"data": [
[
0,
0
],
[
0.03487823687206265,
1
],
[
0.06958655048003272,
2
],
[
0.10395584540887964,
3
],
[
0.13781867790849958,
4
],
[
0.17101007166283433,
5
],
[
0.2033683215379001,
6
],
[
0.2347357813929454,
7
],
[
0.26495963211660245,
8
],
[
0.2938926261462365,
9
],
[
0.3213938048432697,
10
]
]
}
],
"animationDuration": 2000
},
"clickAction": {
"actionType": "dialog",
"dialog": {
"title": "详情",
"body": [
{
"type": "tpl",
"tpl": "<span>当前选中值 ${value|json}<span>"
},
{
"type": "chart",
"api": "/api/mock2/chart/chart1"
}
]
}
}
}
```
## 远程拉取动态配置项
配置`api`,来远程拉取图标配置
```schema: scope="body"
{
"type": "chart",
"api": "/api/mock2/chart/chart1"
}
```
## 通过组件间联动,更新图表
```schema: scope="body"
[
{
"type": "form",
"title": "过滤条件",
"target": "chart1,chart2",
"submitOnInit": true,
"className": "m-b",
"wrapWithPanel": false,
"mode": "inline",
"body": [
{
"type": "input-date",
"label": "开始日期",
"name": "starttime",
"value": "-8days",
"maxDate": "${endtime}"
},
{
"type": "input-date",
"label": "结束日期",
"name": "endtime",
"value": "-1days",
"minDate": "${starttime}"
},
{
"type": "input-text",
"label": "条件",
"name": "name",
"addOn": {
"type": "submit",
"label": "搜索",
"level": "primary"
}
}
],
"actions": []
},
{
"type": "divider"
},
{
"type": "grid",
"className": "m-t-lg",
"columns": [
{
"type": "chart",
"name": "chart1",
"initFetch": false,
"api": "/api/mock2/chart/chart?name=$name&starttime=${starttime}&endtime=${endtime}"
},
{
"type": "chart",
"name": "chart2",
"initFetch": false,
"api": "/api/mock2/chart/chart2?name=$name"
}
]
}
]
```
## 对函数配置的特殊支持
ECharts 中有些配置项可以写函数,比如 formatter 和 sort但在 JSON 里无法写函数,因此我们做了特殊支持,将看起来像函数的字符串转成了函数:
```schema: scope="body"
{
"type": "chart",
"config": {
"legend": {
"formatter": "function (name) { return 'Legend ' + name;}"
},
"dataset": {
"source": [["type","2012","2013","2014","2015","2016"],["Forest",320,332,301,334,390],["Steppe",220,182,191,234,290],["Desert",150,232,201,154,190],["Wetland",98,77,101,99,40]]
},
"xAxis": {
"type": "category",
"axisTick": {
"show": false
}
},
"yAxis": {},
"series": [{"type":"bar","seriesLayoutBy":"row"},{"type":"bar","seriesLayoutBy":"row"},{"type":"bar","seriesLayoutBy":"row"},{"type":"bar","seriesLayoutBy":"row"}]
}
}
```
## 使用地图
从 amis 1.1.0 版本开始ECharts 版本升级到 5.0.0,为了规避政策风险,在这个版本删除了之前的地图 geojson如果需要这个功能需要手动引入。
方法是去 `https://github.com/apache/echarts/tree/master/test/data/map/js` 下载 `china.js` 和 `world.js`。
对于 npm 版本,直接 `import` 这两个文件就行。
对于 JS SDK 版本,需要先加入如下代码如下方式:
```javascript
window.echarts = amisRequire('echarts');
```
然后通过 script 标签引入这两个文件。
## 属性表
| 属性名 | 类型 | 默认值 | 说明 |
| ------------------ | -------------------------------------------- | --------- | ------------------------------------------------------------------ |
| type | `string` | `"chart"` | 指定为 chart 渲染器 |
| className | `string` | | 外层 Dom 的类名 |
| body | [SchemaNode](../../docs/types/schemanode) | | 内容容器 |
| api | [api](../../docs/types/api) | | 配置项接口地址 |
| source | [数据映射](../../docs/concepts/data-mapping) | | 通过数据映射获取数据链中变量值作为配置 |
| initFetch | `boolean` | | 组件初始化时,是否请求接口 |
| interval | `number` | | 刷新时间(最小 1000) |
| config | `object``string` | | 设置 eschars 的配置项,当为`string`的时候可以设置 function 等配置项 |
| style | `object` | | 设置根元素的 style |
| width | `string` | | 设置根元素的宽度 |
| height | `string` | | 设置根元素的高度 |
| replaceChartOption | `boolean` | `false` | 每次更新是完全覆盖配置项还是追加? |
| `trackExpression` | `string` | | 当这个表达式的值有变化时更新图表 |
## 动作表
| 动作名称 | 动作配置 | 说明 |
| -------- | -------------------------- | ------------------------------------------ |
| reload | - | 刷新(重新加载) |
| setValue | `value: object` 更新的数据 | 更新数据,等于更新图表所依赖数据域中的变量 |