Stacked Line Series
Stacked Line Series shows values of multiple categories as cumulative lines. Each line is added on top of the previous one's value; there is no fill, only the line.
Prerequisite
This chart type can only be selected in step 2 of the Cartography Widget Wizard. If you have not started widget creation, start the wizard first; an appropriate Compass record is also required.
When to Use
| Scenario | Why Stacked Line? |
|---|---|
| Cumulative counter by category | Line trend + total view |
| Cumulative output of multiple lines | When loading and fill are unnecessary |
If You Want Fill
To fill the area under a stacked line, use Stacked Area. Stacked Line draws only lines, with no filled area.
Data Structure
Same as Stacked Area — Stack By column is required:
| Column | Type | Example |
|---|---|---|
| X column | TIMESTAMP / DATE |
hour |
| Y column | NUMERIC |
package_count |
| Stack By column | TEXT |
production_line |
Step 4 — Axis Config
Fill the Stack By Column field. Cumulative stacking is computed automatically.
Stacked Line vs Stacked Area
| Feature | Stacked Line | Stacked Area |
|---|---|---|
| Fill | No | Yes |
| Sense of magnitude | Weak | Strong |
| Complexity | Cleaner | More dramatic |
9-Step Summary — For Stacked Line Series
Stacked Line Series uses the Stacked Cartesian flow. Shows stacked-component trends with lines without fill.
| # | Step | Key point for Stacked Line | Detail |
|---|---|---|---|
| 1 | Group Selection | Cartesian | → |
| 2 | Chart Type | Stacked Line Series card | → |
| 3 | Compass Record | X + Y + Stack By columns | → |
| 4 | Axis Config + Stack By | X: DateTime, Y: Numeric, Stack By Column | → |
| 5 | Series Design | Stroke Width, Marker, Color palette | → |
| 6 | (skipped) | — | — |
| 7 | General Design | Legend, Y Axis Suffix | → |
| 8 | Card Design | Refresh: 300-900s | → |
| 9 | Display | Name, Tags, Folder | → |
→ Stacked Cartesian Flow overview