Version: 2022.3
LanguageEnglish
  • C#

Handles.RadiusHandle

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

Declaration

public static float RadiusHandle(Quaternion rotation, Vector3 position, float radius, bool handlesOnly);

Declaration

public static float RadiusHandle(Quaternion rotation, Vector3 position, float radius);

Parameters

rotation The orientation of the handle in 3D space.
position The center of the handle in 3D space.
radius Radius to modify.
handlesOnly Whether to omit the circular outline of the radius and only draw the point handles.

Returns

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

Note: Use HandleUtility.GetHandleSize where you might want to have constant screen-sized handles.

Description

Make a Scene view radius handle.


RadiusHandle on the Scene View.

// Name this script "EffectRadiusEditor"
using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(EffectRadius))] public class EffectRadiusEditor : Editor { public void OnSceneGUI() { EffectRadius t = (target as EffectRadius);

EditorGUI.BeginChangeCheck(); float areaOfEffect = Handles.RadiusHandle(Quaternion.identity, t.transform.position, t.areaOfEffect); if (EditorGUI.EndChangeCheck()) { Undo.RecordObject(target, "Changed Area Of Effect"); t.areaOfEffect = areaOfEffect; } } }

And the Script attached to this GameObject:

// Name this script "EffectRadius"
using UnityEngine;
using System.Collections;

public class EffectRadius : MonoBehaviour { public float areaOfEffect = 1; }