2020-07-28 10:03:53 +08:00
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---
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title: Chart 图表
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2020-07-29 16:20:21 +08:00
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description:
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2020-07-28 10:03:53 +08:00
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type: 0
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group: ⚙ 组件
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menuName: Chart 图标
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2020-07-29 16:20:21 +08:00
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icon:
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2020-07-28 10:03:53 +08:00
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order: 34
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---
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2020-07-29 16:20:21 +08:00
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2020-08-21 13:55:16 +08:00
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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)
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2020-07-28 10:03:53 +08:00
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## 基本用法
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2021-01-07 23:35:03 +08:00
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```schema: scope="body"
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2020-07-28 10:03:53 +08:00
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{
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"type": "chart",
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2021-08-09 18:05:01 +08:00
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"api": "/api/mock2/chart/chart",
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2020-07-28 10:03:53 +08:00
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"interval": 5000
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}
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```
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2021-01-19 16:55:09 +08:00
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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。
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2020-07-28 10:03:53 +08:00
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2021-01-19 16:55:09 +08:00
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## 静态数据
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2021-01-19 16:51:48 +08:00
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2021-01-19 16:55:09 +08:00
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在 `config` 里填写完整的 echarts 配置,这里的数据是静态的。
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2020-07-28 10:03:53 +08:00
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2021-01-07 23:35:03 +08:00
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```schema: scope="body"
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2020-07-28 10:03:53 +08:00
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{
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"type": "chart",
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"config": {
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"title": {
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"text": "极坐标双数值轴"
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},
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"legend": {
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"data": [
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"line"
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]
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},
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"polar": {
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"center": [
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"50%",
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"54%"
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]
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},
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"tooltip": {
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"trigger": "axis",
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"axisPointer": {
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"type": "cross"
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}
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},
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"angleAxis": {
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"type": "value",
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"startAngle": 0
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},
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"radiusAxis": {
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"min": 0
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},
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"series": [
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{
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"coordinateSystem": "polar",
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"name": "line",
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"type": "line",
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"showSymbol": false,
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"data": [
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[
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0,
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0
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],
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[
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0.03487823687206265,
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1
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],
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[
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0.06958655048003272,
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2
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],
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[
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0.10395584540887964,
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3
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],
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[
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0.13781867790849958,
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4
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],
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[
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0.17101007166283433,
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5
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],
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[
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0.2033683215379001,
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6
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],
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[
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0.2347357813929454,
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7
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],
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[
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0.26495963211660245,
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8
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],
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[
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0.2938926261462365,
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9
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],
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[
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0.3213938048432697,
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10
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]
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]
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}
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],
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"animationDuration": 2000
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},
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"clickAction": {
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"actionType": "dialog",
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"dialog": {
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"title": "详情",
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"body": [
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{
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"type": "tpl",
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"tpl": "<span>当前选中值 ${value|json}<span>"
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},
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{
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"type": "chart",
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2021-08-09 18:05:01 +08:00
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"api": "/api/mock2/chart/chart1"
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2020-07-28 10:03:53 +08:00
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}
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]
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}
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}
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}
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```
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2021-01-19 16:51:48 +08:00
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## 动态数据
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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
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```schema: scope="body"
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{
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"type": "chart",
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2021-08-09 18:05:01 +08:00
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"api": "/api/mock2/chart/chartData",
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2021-01-19 16:51:48 +08:00
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"config": {
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"xAxis": {
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"type": "category",
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"data": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
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},
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"yAxis": {
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"type": "value"
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},
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"series": [{
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"data": "${line}",
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"type": "line"
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}]
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}
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}
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```
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2021-02-01 20:44:49 +08:00
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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。
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2021-01-19 16:51:48 +08:00
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```json
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{
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"status": 0,
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"msg": "ok",
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"data": {
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"line": [65, 63, 10, 73, 42, 21]
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}
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}
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```
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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。
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### 使用上层数据接口
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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`。
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```schema: scope="body"
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{
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"type": "service",
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2021-08-09 18:05:01 +08:00
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"api": "/api/mock2/chart/chartData",
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2021-01-19 16:51:48 +08:00
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"interval": 3000,
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"body": [
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{
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"type": "chart",
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"trackExpression": "${line}",
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"config": {
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"xAxis": {
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"type": "category",
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"data": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
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},
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"yAxis": {
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"type": "value"
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},
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"series": [{
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"data": "${line}",
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"type": "line"
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}]
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}
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}
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]
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}
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```
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2020-07-28 10:03:53 +08:00
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## 配置图表点击行为
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2020-11-12 15:26:44 +08:00
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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)。
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2021-02-01 20:44:49 +08:00
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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`
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2020-07-28 10:03:53 +08:00
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> 点击下面坐标中的节点查看效果!
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2021-01-07 23:35:03 +08:00
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```schema: scope="body"
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2020-07-28 10:03:53 +08:00
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{
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"type": "chart",
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"config": {
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"title": {
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"text": "极坐标双数值轴"
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},
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"legend": {
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"data": [
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"line"
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]
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},
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"polar": {
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"center": [
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"50%",
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"54%"
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]
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},
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"tooltip": {
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"trigger": "axis",
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"axisPointer": {
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"type": "cross"
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}
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},
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"angleAxis": {
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"type": "value",
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"startAngle": 0
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},
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"radiusAxis": {
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"min": 0
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},
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"series": [
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{
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"coordinateSystem": "polar",
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"name": "line",
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"type": "line",
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"showSymbol": false,
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"data": [
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[
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0,
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0
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],
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[
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0.03487823687206265,
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1
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],
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[
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0.06958655048003272,
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2
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],
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[
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0.10395584540887964,
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3
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],
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[
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0.13781867790849958,
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4
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],
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[
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0.17101007166283433,
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5
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],
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[
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0.2033683215379001,
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6
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],
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[
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0.2347357813929454,
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7
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],
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[
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0.26495963211660245,
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8
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],
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[
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0.2938926261462365,
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9
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],
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[
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0.3213938048432697,
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10
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]
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]
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}
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],
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"animationDuration": 2000
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},
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"clickAction": {
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"actionType": "dialog",
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"dialog": {
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"title": "详情",
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"body": [
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{
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"type": "tpl",
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"tpl": "<span>当前选中值 ${value|json}<span>"
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},
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{
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"type": "chart",
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2021-08-09 18:05:01 +08:00
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"api": "/api/mock2/chart/chart1"
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2020-07-28 10:03:53 +08:00
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}
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]
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}
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}
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}
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```
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## 远程拉取动态配置项
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配置`api`,来远程拉取图标配置
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2021-01-07 23:35:03 +08:00
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```schema: scope="body"
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2020-07-28 10:03:53 +08:00
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{
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"type": "chart",
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2021-08-09 18:05:01 +08:00
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"api": "/api/mock2/chart/chart1"
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2020-07-28 10:03:53 +08:00
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}
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```
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## 通过组件间联动,更新图表
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|
2021-01-07 23:35:03 +08:00
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```schema: scope="body"
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2020-07-28 10:03:53 +08:00
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[
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{
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"type": "form",
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"title": "过滤条件",
|
|
|
|
|
"target": "chart1,chart2",
|
|
|
|
|
"submitOnInit": true,
|
|
|
|
|
"className": "m-b",
|
|
|
|
|
"wrapWithPanel": false,
|
|
|
|
|
"mode": "inline",
|
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|
|
|
|
"body": [
|
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|
|
|
|
{
|
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|
|
|
|
"type": "input-date",
|
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|
|
|
|
"label": "开始日期",
|
|
|
|
|
"name": "starttime",
|
|
|
|
|
"value": "-8days",
|
|
|
|
|
"maxDate": "${endtime}"
|
|
|
|
|
},
|
|
|
|
|
{
|
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|
|
|
|
"type": "input-date",
|
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|
|
|
|
"label": "结束日期",
|
|
|
|
|
"name": "endtime",
|
|
|
|
|
"value": "-1days",
|
|
|
|
|
"minDate": "${starttime}"
|
|
|
|
|
},
|
|
|
|
|
{
|
2021-06-07 10:09:55 +08:00
|
|
|
|
"type": "input-text",
|
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|
|
|
|
"label": "条件",
|
|
|
|
|
"name": "name",
|
|
|
|
|
"addOn": {
|
|
|
|
|
"type": "submit",
|
|
|
|
|
"label": "搜索",
|
|
|
|
|
"level": "primary"
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
],
|
|
|
|
|
"actions": []
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
"type": "divider"
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
"type": "grid",
|
|
|
|
|
"className": "m-t-lg",
|
|
|
|
|
"columns": [
|
|
|
|
|
{
|
|
|
|
|
"type": "chart",
|
|
|
|
|
"name": "chart1",
|
|
|
|
|
"initFetch": false,
|
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|
|
|
|
"api": "/api/mock2/chart/chart?name=$name&starttime=${starttime}&endtime=${endtime}"
|
2020-07-28 10:03:53 +08:00
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
"type": "chart",
|
|
|
|
|
"name": "chart2",
|
|
|
|
|
"initFetch": false,
|
2021-08-09 18:05:01 +08:00
|
|
|
|
"api": "/api/mock2/chart/chart2?name=$name"
|
2020-07-28 10:03:53 +08:00
|
|
|
|
}
|
|
|
|
|
]
|
|
|
|
|
}
|
|
|
|
|
]
|
|
|
|
|
```
|
|
|
|
|
|
2020-11-06 16:07:54 +08:00
|
|
|
|
## 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:
|
|
|
|
|
|
2021-01-07 23:35:03 +08:00
|
|
|
|
```schema: scope="body"
|
2020-11-06 16:07:54 +08:00
|
|
|
|
{
|
|
|
|
|
"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"}]
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
2021-01-04 16:59:32 +08:00
|
|
|
|
## 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/incubator-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。
|
|
|
|
|
|
2020-07-28 10:03:53 +08:00
|
|
|
|
## 属性表
|
|
|
|
|
|
2021-02-01 20:44:49 +08:00
|
|
|
|
| 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` 或 `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 |
|