GitHub user dosubot[bot] added a comment to the discussion: Bubble chart expands y axis to negative values when all data points have y = 0
<!-- Greeting --> Hi @andreeairimia-ops! I'm [Dosu](https://go.dosu.dev/dosubot) and I’m helping the superset team. <!-- Answer --> Superset v3 doesn't have a built-in or UI-based way to dynamically set the y-axis max to 1 only when all bubble chart y values are zero. The axis bounds are either manually set via the chart controls or automatically inferred, which leads to negative values when min = max = 0 due to ECharts' default padding behavior. There are no advanced config options or hooks for this in the current codebase or UI [source](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-echarts/src/Bubble/transformProps.ts). To achieve your desired behavior, you'd need to add logic in the bubble chart plugin's `transformProps` function. After building the chart series, check if all y values are zero and bounds are unset, then set `min: 0, max: 1` for `yAxis` in `echartOptions`. Here’s a rough outline: ```js const allYZero = data.every(datum => datum[yAxisLabel] === 0); if (allYZero && yAxisMin == null && yAxisMax == null) { echartOptions.yAxis.min = 0; echartOptions.yAxis.max = 1; } ``` Recent PRs have improved axis bounds handling and global min/max calculation, but none implement this specific conditional logic [source](https://github.com/apache/superset/pull/34526). Let me know if you want more details on where to add this or how to patch the plugin! <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/00c96f03-ece9-4d55-89cb-ebef4d3332e2?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/00c96f03-ece9-4d55-89cb-ebef4d3332e2?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/00c96f03-ece9-4d55-89cb-ebef4d3332e2?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/00c96f03-ece9-4d55-89cb-ebef4d3332e2?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/00c96f03-ece9-4d55-89cb-ebef4d3332e2?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/00c96f03-ece9-4d55-89cb-ebef4d3332e2?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/00c96f03-ece9-4d55-89cb-ebef4d3332e2?feedback_type=other)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=github)& nbsp;[](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/discussions/35054) GitHub link: https://github.com/apache/superset/discussions/35054#discussioncomment-14339766 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
