---
title: "setValueForXAxis(_:yAxis:touchDown:buttonValue:)"
framework: gamecontroller
role: symbol
role_heading: Instance Method
path: "gamecontroller/gccontrollertouchpad/setvalueforxaxis(_:yaxis:touchdown:buttonvalue:)"
---

# setValueForXAxis(_:yAxis:touchDown:buttonValue:)

Sets the input values of a snapshot of a touchpad.

## Declaration

```swift
func setValueForXAxis(_ xAxis: Float, yAxis: Float, touchDown: Bool, buttonValue: Float)
```

## Parameters

- `xAxis`: A normalized value of the x-axis ranging from -1 to 1.
- `yAxis`: A normalized value of the y-axis ranging from -1 to 1.
- `touchDown`: A Boolean value that indicates whether the user starts touching the surface. If doc://com.apple.documentation/documentation/Swift/true, the user is touching the surface; otherwise, the user isn’t.
- `buttonValue`: A normalized number between 0.0 (minimum) and 1.0 (maximum) that represents the level of pressure the user applies to the button.

## Discussion

Discussion This method does nothing if the associated controller isn’t a snapshot (its isSnapshot property is false).