GitHub user dosubot[bot] added a comment to the discussion: Superset Genral Doubt version 6
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It's in `superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/Regular/SmoothLine/` [[1]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/Regular/SmoothLine/index.ts). It works by wrapping the shared Timeseries `transformProps` and injecting `smooth: true` into the ECharts series config [[2]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/transformers.ts#L127-L138): ```typescript smooth: seriesType === EchartsTimeseriesSeriesType.Smooth, ``` So if you just want a smooth line chart, look for **"Line Chart"** in the chart picker and select the **"Smooth Line"** variant — it's already there. If you want a *custom* smooth line with different behavior, you can follow that same pattern: wrap the shared transformProps and override the specific options you need [[3]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/Regular/SmoothLine/index.ts#L32-L39): ```typescript const myCustomTransformProps = (chartProps: EchartsTimeseriesChartProps) => transformProps({ ...chartProps, formData: { ...chartProps.formData, seriesType: EchartsTimeseriesSeriesType.Smooth, // add your custom overrides here }, }); ``` *** ### Chart 2: Geo Graph Chart — This requires a new plugin The geo chart with map + graph overlay is more involved. Superset already has a [Graph chart plugin](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-echarts/src/Graph/transformProps.ts) that handles nodes and edges, but it uses force/circular layout — not a geo coordinate system. Here's what you'd need: **Step 1 — Add VizType** in `superset-frontend/packages/superset-ui-core/src/chart/types/VizType.ts` [[4]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/packages/superset-ui-core/src/chart/types/VizType.ts#L19-L66): ```typescript export enum VizType { // ... existing entries EchartsGeoGraph = 'echarts_geo_graph', } ``` **Step 2 — Create your plugin directory** at `superset-frontend/plugins/plugin-chart-echarts/src/GeoGraph/` with these files: **`types.ts`:** ```typescript import { QueryFormData, QueryFormColumn } from '@superset-ui/core'; import { BaseChartProps, BaseTransformedProps } from '../types'; export type EchartsGeoGraphFormData = QueryFormData & { source: QueryFormColumn; target: QueryFormColumn; metric: string; longitude: QueryFormColumn; latitude: QueryFormColumn; mapType: string; // e.g. 'world', 'USA', 'ch' }; export interface EchartsGeoGraphChartProps extends BaseChartProps<EchartsGeoGraphFormData> { formData: EchartsGeoGraphFormData; } export type GeoGraphTransformedProps = BaseTransformedProps<EchartsGeoGraphFormData>; ``` **`buildQuery.ts`** — tell Superset which form fields become SQL columns (similar to the existing Graph plugin) [[5]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-echarts/src/Graph/buildQuery.ts#L21-L29): ```typescript import { buildQueryContext, QueryFormData } from '@superset-ui/core'; export default function buildQuery(formData: QueryFormData) { return buildQueryContext(formData, { queryFields: { source: 'columns', target: 'columns', longitude: 'columns', latitude: 'columns', }, }); } ``` **`transformProps.ts`** — this is the key file where you convert DB data into ECharts options: ```typescript export default function transformProps(chartProps) { const { width, height, formData, queriesData } = chartProps; const data = queriesData[0]?.data || []; // Build nodes from your query data const nodes = data.map(row => ({ name: String(row[formData.source]), value: [row[formData.longitude], row[formData.latitude]], })); // Build edges const edges = data.map(row => ({ source: String(row[formData.source]), target: String(row[formData.target]), })); const echartOptions = { geo: { map: formData.mapType || 'world', roam: true, label: { show: true }, }, series: [ { type: 'graph', coordinateSystem: 'geo', data: nodes, edges, edgeSymbol: ['none', 'arrow'], edgeSymbolSize: 5, lineStyle: { color: '#718adb', opacity: 1 }, }, ], }; return { formData, width, height, echartOptions, refs: {} }; } ``` **`controlPanel.tsx`:** ```typescript import { t } from '@superset-ui/core'; import { ControlPanelConfig, sharedControls } from '@superset-ui/chart-controls'; const config: ControlPanelConfig = { controlPanelSections: [ { label: t('Query'), expanded: true, controlSetRows: [ [{ name: 'source', config: { ...sharedControls.entity, label: t('Source') } }], [{ name: 'target', config: { ...sharedControls.entity, label: t('Target') } }], [{ name: 'longitude', config: { ...sharedControls.entity, label: t('Longitude') } }], [{ name: 'latitude', config: { ...sharedControls.entity, label: t('Latitude') } }], ['metric'], ['adhoc_filters'], ['row_limit'], ], }, ], }; export default config; ``` **`EchartsGeoGraph.tsx`:** ```typescript import Echart from '../components/Echart'; export default function EchartsGeoGraph(props) { const { height, width, echartOptions, refs } = props; return <Echart refs={refs} height={height} width={width} echartOptions={echartOptions} />; } ``` **`index.ts`:** ```typescript import { t, Behavior } from '@superset-ui/core'; import { EchartsChartPlugin } from '../types'; import buildQuery from './buildQuery'; import controlPanel from './controlPanel'; import transformProps from './transformProps'; import thumbnail from '../Graph/images/thumbnail.png'; // reuse for now export default class EchartsGeoGraphPlugin extends EchartsChartPlugin { constructor() { super({ buildQuery, controlPanel, loadChart: () => import('./EchartsGeoGraph'), metadata: { behaviors: [Behavior.InteractiveChart], category: t('ECharts'), credits: ['https://echarts.apache.org'], description: t('A geo graph showing routes on a map'), name: t('Geo Graph'), tags: [t('ECharts'), t('Geo'), t('Network')], thumbnail, }, transformProps, }); } } ``` **Step 3 — Export** from `superset-frontend/plugins/plugin-chart-echarts/src/index.ts` [[6]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-echarts/src/index.ts): ```typescript export { default as EchartsGeoGraphPlugin } from './GeoGraph'; ``` **Step 4 — Register** in `superset-frontend/src/visualizations/presets/MainPreset.js` [[7]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/src/visualizations/presets/MainPreset.js#L101-L112): ```javascript import { EchartsGeoGraphPlugin } from '@superset-ui/plugin-chart-echarts'; // In the plugins array: new EchartsGeoGraphPlugin().configure({ key: VizType.EchartsGeoGraph }), ``` **Important note for the Geo chart:** You'll also need to register the map GeoJSON data with ECharts (e.g., `echarts.registerMap('world', geoJSON)`) somewhere in your component or app initialization. This is the trickiest part — you can load a GeoJSON file and register it in your `EchartsGeoGraph.tsx` component before rendering. *** **Recommended approach:** Start with Chart 1 (smooth line) since it already exists in Superset. Once you're comfortable with the plugin architecture, move on to the Geo Graph which requires more custom work. And check your browser console for the error that's preventing your current build from loading — that'll be the fastest way to debug. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=reply-with-mention&utm_term=apache%2Fsuperset).* --- Docs are dead. Just use [Dosu](https://dosu.dev?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=static-docs-tagline&utm_term=apache%2Fsuperset). 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