---
title: "Axis Position"
framework: vue
version: "14.1.0"
---

# Axis Position

Cartesian axes can be positioned on the `top`, `bottom`, `left`, or `right` edge of the chart.

## Axis Placement

The axis `position` property controls where the axis is rendered. By default, horizontal axes appear at the bottom of the chart and vertical axes appear on the left.

#### Axis Positions

```ts
import { createApp, defineComponent, ref } from "vue";
import { AgCharts } from "ag-charts-vue3";
import type { AgChartOptions } from "ag-charts-types";
import {
  BarSeriesModule,
  CategoryAxisModule,
  LegendModule,
  LineSeriesModule,
  ModuleRegistry,
  NumberAxisModule,
} from "ag-charts-community";

ModuleRegistry.registerModules([
  BarSeriesModule,
  CategoryAxisModule,
  LegendModule,
  LineSeriesModule,
  NumberAxisModule,
]);

const ChartExample = defineComponent({
  template: `
    <ag-charts
      :options="options"
    />
  `,
  components: {
    "ag-charts": AgCharts,
  },
  setup(props) {
    const options = ref<AgCartesianChartOptions>({
      title: {
        text: "Company Financials (2023)",
      },
      data: [
        { quarter: "Q1", revenue: 8.5, profitMargin: 22 },
        { quarter: "Q2", revenue: 11.2, profitMargin: 27 },
        { quarter: "Q3", revenue: 9.8, profitMargin: 25 },
        { quarter: "Q4", revenue: 13.4, profitMargin: 31 },
      ],
      axes: {
        x: {
          title: { text: "Quarter" },
        },
        y: {
          position: "left",
          title: { text: "Revenue ($M)" },
          line: {
            stroke: "red",
            width: 3,
          },
        },
        ySecondary: {
          type: "number",
          position: "right",
          title: { text: "Profit Margin (%)" },
          label: {
            formatter: ({ value }) => `${value}%`,
          },
          line: {
            stroke: "red",
            width: 3,
          },
        },
      },
      series: [
        {
          type: "bar",
          xKey: "quarter",
          yKey: "revenue",
        },
        {
          type: "line",
          xKey: "quarter",
          yKey: "profitMargin",
          yKeyAxis: "ySecondary",
        },
      ],
    });

    return {
      options,
    };
  },
});

createApp(ChartExample).mount("#app");
```

[Live example: Axis Positions](https://www.ag-grid.com/charts/vue3/axes-position/examples/axis-position-basic)

```js
{
    axes: {
        x: {
            type: 'category',
            position: 'bottom',
            title: { text: 'Quarter' },
        },
        y: {
            type: 'number',
            position: 'left',
            title: { text: 'Revenue ($M)' },
        },
        ySecondary: {
            type: 'number',
            position: 'right',
            title: { text: 'Profit Margin (%)' },
        },
    },
}
```

[Secondary Axes](https://www.ag-grid.com/charts/vue/axes-secondary/) default to the opposite edge from the primary axis, but it is possible to have multiple axes on the same edge. These are displayed alongside each other.

## Axis Crossing Point

The `crossAt` option allows an axis to intersect a perpendicular axis at a specific axis value instead of the chart edge. This is useful for centring the chart origin or aligning axes to highlight particular thresholds.

#### CrossAt

```ts
import { createApp, defineComponent, ref } from "vue";
import { AgCharts } from "ag-charts-vue3";
import type { AgChartOptions } from "ag-charts-types";
import {
  LegendModule,
  LineSeriesModule,
  ModuleRegistry,
  NumberAxisModule,
} from "ag-charts-community";
import { getData } from "./data";

ModuleRegistry.registerModules([
  LegendModule,
  LineSeriesModule,
  NumberAxisModule,
]);

const ChartExample = defineComponent({
  template: `
    <ag-charts
      :options="options"
    />
  `,
  components: {
    "ag-charts": AgCharts,
  },
  setup(props) {
    const options = ref<AgCartesianChartOptions>({
      theme: {
        overrides: {
          common: {
            axes: {
              number: {
                line: {
                  enabled: true,
                  stroke: "red",
                },
                tick: {
                  enabled: true,
                  size: 12,
                  stroke: "red",
                },
                label: {
                  color: "red",
                },
              },
            },
          },
        },
      },
      title: { text: "Axes crossing at 0", fontWeight: "bold" },
      data: getData(),
      axes: {
        x: {
          type: "number",
          crossAt: {
            value: 0,
          },
        },
        y: {
          type: "number",
          crossAt: {
            value: 0,
          },
        },
      },
      series: [
        {
          type: "line",
          xKey: "x",
          yKey: "y",
          yName: "Function plot",
          strokeWidth: 3,
          marker: { size: 0 },
        },
      ],
    });

    return {
      options,
    };
  },
});

createApp(ChartExample).mount("#app");
```

[Live example: CrossAt](https://www.ag-grid.com/charts/vue3/axes-position/examples/axis-cross-at)

```js
{
    axes: {
        x: {
            type: 'number',
            // place the bottom axis at '0' on the left axis scale
            crossAt: { value: 0 },
        },
        y: {
            type: 'number',
            // place the left axis at '0' on the bottom axis scale
            crossAt: { value: 0 },
        },
    },
}
```

In this example:

- Both axes have a `crossAt.value` set. It is also possible to set it on a single axis only.
- The `crossAt.value` must be of the same type as the perpendicular axis domain, such as `Number` or `Date`.
- The `crossAt` target value should be within the domain of the perpendicular axis.

When the target value leaves the visible range, such as by [Zooming](https://www.ag-grid.com/charts/vue/zoom/), the axis will stick to the edge of the chart and remain in view.

Set `sticky: false` to allow the axis to be moved out of view in this scenario.

## Band Alignment

The `bandAlignment` option controls the band layout when using [fixed width bars](https://www.ag-grid.com/charts/vue/bars/#fixed-width).

#### Band Alignment

```ts
import { createApp, defineComponent, ref } from "vue";
import { AgCharts } from "ag-charts-vue3";
import type { AgChartOptions } from "ag-charts-types";
import {
  BarSeriesModule,
  CategoryAxisModule,
  LegendModule,
  ModuleRegistry,
  NumberAxisModule,
} from "ag-charts-enterprise";
import { getData } from "./data";
import clone from "clone";

ModuleRegistry.registerModules([
  BarSeriesModule,
  CategoryAxisModule,
  NumberAxisModule,
  LegendModule,
]);

const ChartExample = defineComponent({
  template: `
    <div class="example-controls">
      <div class="controls-row">
        <button v-on:click="changeBandAlignment('justify')">Justify</button>
        <button v-on:click="changeBandAlignment('start')">Start</button>
        <button v-on:click="changeBandAlignment('center')">Center</button>
        <button v-on:click="changeBandAlignment('end')">End</button>
      </div>
    </div>
    <ag-charts
      :options="options"
    />
  `,
  components: {
    "ag-charts": AgCharts,
  },
  setup(props) {
    const options = ref<AgCartesianChartOptions<DataType>>({
      data: getData(),
      title: {
        text: "Total Visitors to Museums and Galleries",
      },
      footnote: {
        text: "Source: Department for Digital, Culture, Media & Sport",
      },
      series: [
        {
          type: "bar",
          xKey: "quarter",
          yKey: "museums",
          yName: "Museums",
          width: 10,
        },
        {
          type: "bar",
          xKey: "quarter",
          yKey: "galleries",
          yName: "Galleries",
          width: 10,
        },
        {
          type: "bar",
          xKey: "quarter",
          yKey: "heritage",
          yName: "Heritage Sites",
          width: 10,
        },
      ],
      axes: {
        x: {
          type: "category",
          bandAlignment: "start",
        },
        y: {
          type: "number",
          title: {
            text: "Total Visitors (Millions)",
          },
        },
      },
      formatter: {
        y(params) {
          const value = params.value;
          const millions = value / 1000000;
          const accuracy = ["series-label", "axis-label"].includes(
            params.source,
          )
            ? 0
            : 1;
          return `${millions.toFixed(accuracy)}M`;
        },
      },
    });

    const changeBandAlignment = (alignment) => {
      const optionsCopy = clone(options.value);

      optionsCopy.axes.x.bandAlignment = alignment;

      options.value = optionsCopy;
    };

    return {
      options,
      changeBandAlignment,
    };
  },
});

createApp(ChartExample).mount("#app");
```

[Live example: Band Alignment](https://www.ag-grid.com/charts/vue3/axes-position/examples/band-alignment)

```js
{
    axes: {
        x: {
            type: 'category',
            bandAlignment: 'start',
        },
    },
}
```

See the [Series Bars](https://www.ag-grid.com/charts/vue/bars/#band-alignment) documentation for more details.