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url: https://chartbuddy.io/embed/docs/axes/by-chart-type.md
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# Axes by chart type

What each chart type does with axes. Always confirm sides after [orientation](/concepts/orientation) remap.

| Chart type | Domain | Primary range | Secondary | Notes |
|---|---|---|---|---|
| `clusteredBar` / `stackedBar` | Band categories | Linear values | Optional (rare) | Keep **0 in range** for bars |
| `stackedBar100` | Band | Fixed **0–100**, `%` ticks | – | Intervals divisors of 100 |
| `line` | Band | Linear | Fully supported | Set range with `customMin` / `customMax`; secondary via `boundSeries` |
| `stackedArea` / `stackedArea100` | Band | Linear / 0–100 `%` | – | Area usually includes zero |
| `pie` / `donut` | Disabled | Disabled | – | No axes |
| `scatter` / `bubble` | **Linear** X | Linear Y | – | Runtime forces linear domain |
| `waterfall` | Band | Linear | – | Keep zero in play for bridges |
| `mekko` | Linear **0–100** width | Linear **0–100** `%` stacks | – | Domain + range both %-ish |
| `barMekko` | Linear width domain | Often **`visible: false`** | – | Totals + domain labels are enough without the value axis line |
| `combo` | Band | Linear | Supported with `boundSeries` | Pair with `combo.seriesTypes` |

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## Detail

### Bars & waterfalls

Value axis on left (vertical) or bottom (horizontal). Format + `preferredTickInterval` + optional gridlines. See [Value axis](/axes/value-axis) and [Horizontal bar sample](/samples/horizontal-bar).

### 100% stacks & mekko

Prefer `preferredTickInterval: 20|25|50`, bounds 0–100, `postfix: '%'`. [Percent axis sample](/samples/percent-axis).

### Line + dual axis

[Secondary](/axes/secondary) · [Dual-axis line sample](/samples/dual-axis-line).

### Scatter / bubble

Format both linear sides; ignore category `fitMechanism` / `dateFormat` unless you intentionally treat labels as categories (you usually do not).

### Combo

Bars share the primary scale; bind the line (or other) series to secondary when units differ. [Combo](/chart-types/combo) · [Secondary](/axes/secondary).

### Pie

Do not author `axes` for layout – they are disabled. Labels live in the pie config / data labels.

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## Hide / show

Only **range** roles can be hidden as axes (`primaryRange`, `secondaryRange`). Domain cannot. Bar Mekko hiding the primary line is a product default, not a missing axis.