Problem

The chart view's Y-axis always starts at 0, making it difficult to visualize data with small variations around large baseline values.

For example, monitoring sensor data like:

• Temperature: 99.7°C - 100.6°C (0.9°C range)
• Pressure: 1012.8 - 1013.9 hPa (1.1 hPa range)

With the Y-axis scaled from 0-100, these small but important variations become nearly invisible.

Solution

Enable the ECharts scale: true option for the Y-axis configuration. This allows the chart to dynamically scale based on actual data values instead of forcing zero as the minimum.

Changes

• Modified packages/web-console/src/js/console/quick-vis.ts
• Added scale: true to the yAxis configuration in the chart options

Result

• Charts now automatically scale to show the actual data range
• Small variations in large values are clearly visible
• No wasted chart space
• Improved data visualization for monitoring scenarios

Testing

Tested with sensor data containing:

• Temperature readings: 99.7-100.6°C
• Pressure readings: 1012.8-1013.9 hPa

Before: Y-axis shows 0-100, data appears as flat line
After: Y-axis shows 99.7-100.6, variations are clearly visible

Fixes #45