# Axes Styling

Let's take a look at our Axes system now. By default, any Cartesian Type Chart will draw the Cartesian X & Y Axes. To style our axes, we will use the `chartStylingData` property which provides us the `axisStyle` property.

## CartesianAxisStyle

{% tabs %}
{% tab title="Code Sample" %}

<pre class="language-dart"><code class="lang-dart">...
BarChart(
  height: 400,
  chartStructureData: const CartesianChartStructureData(
    xUnitValue: 1,
    yUnitValue: 2,
    maxYValue: 10,
  ),
  chartStylingData: CartesianChartStylingData(
<strong>    axisStyle: CartesianAxisStyle(
</strong><strong>      axisWidth: 3.0,
</strong><strong>      axisColor: Colors.white,
</strong><strong>    ),
</strong>    gridStyle: CartesianGridStyle(
      show: true,
      gridLineWidth: 1.0,
      gridLineColor: Colors.white,
    ),
  ),
  data: BarSeries(
    barData: [
      SimpleBar(
        xValue: 1,
        yValue: const BarData(yValue: 2.3),
      ),
      SimpleBar(
        xValue: 2,
        yValue: const BarData(yValue: 7.2),
      ),
      SimpleBar(
        xValue: 3,
        yValue: const BarData(yValue: 4.8),
      ),
    ],
  ),
),
</code></pre>

{% endtab %}

{% tab title="Result" %}

<figure><img src="/files/mHG7rO0dALppDUSw9qTg" alt=""><figcaption></figcaption></figure>
{% endtab %}
{% endtabs %}

You may be intrigued before with the lack of `minXValue` and `minYValue` properties in ChartStructureData property before. This is because the chart auto shifts the origin points to present Negative Axes if Negative values are found.

{% tabs %}
{% tab title="Code Sample" %}

<pre class="language-dart"><code class="lang-dart">...
BarChart(
  height: 400,
  chartStructureData: const CartesianChartStructureData(
    xUnitValue: 2,
    yUnitValue: 2,
    maxYValue: 10,
  ),
  chartStylingData: CartesianChartStylingData(
    axisStyle: CartesianAxisStyle(
      axisWidth: 3.0,
      axisColor: Colors.white,
    ),
    gridStyle: CartesianGridStyle(
      show: true,
      gridLineWidth: 1.0,
      gridLineColor: Colors.white,
    ),
  ),
  data: BarSeries(
    barData: [
      SimpleBar(
        xValue: 1,
        yValue: const BarData(yValue: 2.3),
      ),
      SimpleBar(
        xValue: 2,
        yValue: const BarData(yValue: 7.2),
      ),
      SimpleBar(
        xValue: 3,
<strong>        yValue: const BarData(yValue: -4.8), // Negative Data
</strong>      ),
    ],
  ),
),
</code></pre>

{% endtab %}

{% tab title="Result" %}

<figure><img src="/files/xLaGCSGmi1hyt9xAMI36" alt=""><figcaption></figcaption></figure>
{% endtab %}
{% endtabs %}

We can also add interval ticks along the axes. By default, ticks are not visible, and can be enabled individually with the default constructor or with the `showTicks` property of `AxisTickConfig.forAllAxis` constructor.

{% tabs %}
{% tab title="For Individual Axes" %}

<pre class="language-dart"><code class="lang-dart">...
BarChart(
  ...
  chartStylingData: CartesianChartStylingData(
    axisStyle: CartesianAxisStyle(
      axisWidth: 3.0,
      axisColor: Colors.white,
<strong>      tickConfig: AxisTickConfig(
</strong><strong>        showTicks: true,
</strong><strong>        tickLength: 15.0,
</strong><strong>        tickWidth: 1.0,
</strong><strong>        tickColor: Colors.white,
</strong><strong>        showTickOnLeftAxis: true,
</strong><strong>        showTickOnBottomAxis: true,
</strong>      ),
    ),
    ...
  ),
  ...
),
</code></pre>

{% endtab %}

{% tab title="For All Axes" %}

<pre class="language-dart"><code class="lang-dart">...
BarChart(
  ...
  chartStylingData: CartesianChartStylingData(
    axisStyle: CartesianAxisStyle(
      axisWidth: 3.0,
      axisColor: Colors.white,
<strong>      tickConfig: AxisTickConfig.forAllAxis(
</strong><strong>        showTicks: true,
</strong><strong>        tickLength: 15.0,
</strong><strong>        tickWidth: 1.0,
</strong><strong>        tickColor: Colors.white,
</strong><strong>      ),
</strong>    ),
    ...
  ),
  ...
),
</code></pre>

{% endtab %}

{% tab title="Result" %}

<figure><img src="/files/46bSicBT8uftO64flpHo" alt=""><figcaption></figcaption></figure>
{% endtab %}
{% endtabs %}

### CartesianAxisStyle Class Properties

| Name       | Type             | Required                               | Default Value    |
| ---------- | ---------------- | -------------------------------------- | ---------------- |
| axisWidth  | `double`         | <mark style="color:blue;">false</mark> | `2.0`            |
| axisColor  | `Color`          | <mark style="color:blue;">false</mark> | `Colors.black45` |
| tickConfig | `AxisTickConfig` | <mark style="color:blue;">false</mark> | Class Defaults   |

### AxisTickConfig Class Properties

{% tabs %}
{% tab title="Common Properties" %}

| Name         | Type     | Required                               | Default Value    |
| ------------ | -------- | -------------------------------------- | ---------------- |
| tickLength   | `double` | <mark style="color:blue;">false</mark> | 15`.0`           |
| tickWidth    | `double` | <mark style="color:blue;">false</mark> | `1.0`            |
| tickColor    | `Color`  | <mark style="color:blue;">false</mark> | `Colors.black45` |
| {% endtab %} |          |                                        |                  |

{% tab title="Primary Constructor" %}

<table><thead><tr><th width="237">Name</th><th width="152">Type</th><th width="151">Required</th><th>Default Value</th></tr></thead><tbody><tr><td>showTickOnLeftAxis</td><td><code>bool</code></td><td><mark style="color:blue;">false</mark></td><td><code>false</code></td></tr><tr><td>showTickOnTopAxis</td><td><code>bool</code></td><td><mark style="color:blue;">false</mark></td><td><code>false</code></td></tr><tr><td>showTickOnBottomAxis</td><td><code>bool</code></td><td><mark style="color:blue;">false</mark></td><td><code>false</code></td></tr><tr><td>showTickOnRightAxis</td><td><code>bool</code></td><td><mark style="color:blue;">false</mark></td><td><code>false</code></td></tr></tbody></table>
{% endtab %}

{% tab title="forAllAxis" %}

| Name          | Type   | Required                               | Default Value |
| ------------- | ------ | -------------------------------------- | ------------- |
| showTicks     | `bool` | <mark style="color:blue;">false</mark> | `false`       |
| {% endtab %}  |        |                                        |               |
| {% endtabs %} |        |                                        |               |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://flutter.wednesday.is/charts/guides/cartesian-charts/chart-structuring/axes-styling.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.