codeant-ai-for-open-source[bot] commented on PR #38017:
URL: https://github.com/apache/superset/pull/38017#issuecomment-3943613970
## **Sequence Diagram**
The PR ensures transformProps passes the chart's time grain to the X-axis
formatter and replaces the undefined adaptive formatter with a time-grain-aware
smart date formatter so ECharts renders human-friendly date labels instead of
raw timestamps.
```mermaid
sequenceDiagram
participant transformProps
participant FormattersUtils
participant TimeFormatter
participant ECharts
transformProps->>FormattersUtils: getXAxisFormatter(xAxisTimeFormat,
timeGrainSqla)
FormattersUtils->>TimeFormatter: create smart-date formatter
(time-grain-aware)
TimeFormatter-->>FormattersUtils: return TimeFormatter (normalizes dates
by grain)
FormattersUtils-->>transformProps: TimeFormatter
transformProps->>ECharts: attach axisLabel.formatter = TimeFormatter
ECharts->>TimeFormatter: format(date) when rendering labels
TimeFormatter-->>ECharts: formatted date string
```
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