Version: 2017.1 (switch to 2017.2b)
LanguageEnglish
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

Handles.Slider2D

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

public static function Slider2D(id: int, handlePos: Vector3, offset: Vector3, handleDir: Vector3, slideDir1: Vector3, slideDir2: Vector3, handleSize: float, capFunction: Handles.CapFunction, snap: Vector2, drawHelper: bool = false): Vector3;
public static Vector3 Slider2D(int id, Vector3 handlePos, Vector3 offset, Vector3 handleDir, Vector3 slideDir1, Vector3 slideDir2, float handleSize, Handles.CapFunction capFunction, Vector2 snap, bool drawHelper = false);
public static function Slider2D(handlePos: Vector3, handleDir: Vector3, slideDir1: Vector3, slideDir2: Vector3, handleSize: float, capFunction: Handles.CapFunction, snap: float, drawHelper: bool = false): Vector3;
public static Vector3 Slider2D(Vector3 handlePos, Vector3 handleDir, Vector3 slideDir1, Vector3 slideDir2, float handleSize, Handles.CapFunction capFunction, float snap, bool drawHelper = false);
public static function Slider2D(id: int, handlePos: Vector3, handleDir: Vector3, slideDir1: Vector3, slideDir2: Vector3, handleSize: float, capFunction: Handles.CapFunction, snap: Vector2, drawHelper: bool = false): Vector3;
public static Vector3 Slider2D(int id, Vector3 handlePos, Vector3 handleDir, Vector3 slideDir1, Vector3 slideDir2, float handleSize, Handles.CapFunction capFunction, Vector2 snap, bool drawHelper = false);
public static function Slider2D(handlePos: Vector3, handleDir: Vector3, slideDir1: Vector3, slideDir2: Vector3, handleSize: float, capFunction: Handles.CapFunction, snap: Vector2, drawHelper: bool = false): Vector3;
public static Vector3 Slider2D(Vector3 handlePos, Vector3 handleDir, Vector3 slideDir1, Vector3 slideDir2, float handleSize, Handles.CapFunction capFunction, Vector2 snap, bool drawHelper = false);

Parameters

id (optional) override the default ControlID for this Slider2D instance.
handlePos The position of the current point in the space of Handles.matrix.
offset (optional) renders the Slider2D at handlePos, but treats the Slider2D's origin as handlePos + offset. Useful for Slider2D instances that are placed/rendered relative to another object or handle.
handleDir The direction of the handle in the space of Handles.matrix, only used for rendering of the handle.
slideDir1 The first axis of the slider's plane of movement in the space of Handles.matrix.
slideDir2 The second axis of the slider's plane of movement in the space of Handles.matrix.
handleSize The size of the handle in the space of Handles.matrix. Use HandleUtility.GetHandleSize if you want a constant screen-space size.
snap (float or Vector2) The snap increment along both axes, either uniform or per-axis. See Handles.SnapValue.
drawHelper (default: false) render a rectangle around the handle when dragging.
capFunction The function to call for doing the actual drawing.

Returns

Vector3 The new value modified by the user's interaction with the handle. If the user has not moved the handle, it will return the position value passed into the function.

Description

Make a 3D slider that moves along a plane defined by two axes.

This method will draw a 3D-draggable handle on the screen. The handle is constrained to sliding along a plane in 3D space.


2D slider handle in the Scene View.

Add the following script to your Assets folder as Slider2DExample.cs and add the Slider2DExample component to an object in a scene.

#pragma strict
@ExecuteInEditMode
public class Slider2DExample extends MonoBehaviour {
	Vector3targetPosition {
		return m_TargetPosition;
	}
	 {
		m_TargetPosition = value;
	}
	@SerializeField
	private var m_TargetPosition: Vector3 = new Vector3(1f, 0f, 2f);
	public virtual function Update() {
		transform.LookAt(m_TargetPosition);
	}
}
using UnityEngine;

[ExecuteInEditMode] public class Slider2DExample : MonoBehaviour { public Vector3 targetPosition { get { return m_TargetPosition; } set { m_TargetPosition = value; } } [SerializeField] private Vector3 m_TargetPosition = new Vector3(1f, 0f, 2f);

public virtual void Update() { transform.LookAt(m_TargetPosition); } }

Add the following script to Assets/Editor as Slider2DExampleEditor.cs and select the object with the Slider2DExample component.

#pragma strict
@CustomEditor(Slider2DExample)
@CanEditMultipleObjects
public class Slider2DExampleEditor extends Editor {
	protected virtual function OnSceneGUI() {
		var example: Slider2DExample = Slider2DExampletarget;
		var size: float = HandleUtility.GetHandleSize(example.targetPosition) * 0.5f;
		var snap: float = 0.1f;
		var handleDirection: Vector3 = Vector3.up;
		EditorGUI.BeginChangeCheck();
		var newTargetPosition: Vector3 = Handles.Slider2D(example.targetPosition, handleDirection, Vector3.right, Vector3.forward, size, Handles.CircleHandleCap, snap);
		if (EditorGUI.EndChangeCheck()) {
			Undo.RecordObject(example, "Change Look At Target Position");
			example.targetPosition = newTargetPosition;
			example.Update();
		}
	}
}
using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(Slider2DExample)), CanEditMultipleObjects] public class Slider2DExampleEditor : Editor { protected virtual void OnSceneGUI() { Slider2DExample example = (Slider2DExample)target;

float size = HandleUtility.GetHandleSize(example.targetPosition) * 0.5f; float snap = 0.1f; Vector3 handleDirection = Vector3.up;

EditorGUI.BeginChangeCheck(); Vector3 newTargetPosition = Handles.Slider2D(example.targetPosition, handleDirection, Vector3.right, Vector3.forward, size, Handles.CircleHandleCap, snap); if (EditorGUI.EndChangeCheck()) { Undo.RecordObject(example, "Change Look At Target Position"); example.targetPosition = newTargetPosition; example.Update(); } } }