Version: 2021.3
public static void ArrowHandleCap (int controlID, Vector3 position, Quaternion rotation, float size, EventType eventType);

パラメーター

controlID ハンドルのコントロール ID
position The position of the handle in the space of Handles.matrix.
rotation The rotation of the handle in the space of Handles.matrix.
size The size of the handle in the space of Handles.matrix. Use HandleUtility.GetHandleSize if you want a constant screen-space size.
eventType ハンドルを動かすためのイベントタイプ。EventType.LayoutEventType.Repaint イベントを処理します。

説明

Move ツールで使用されるような Arrow を描画します。

EventType.Layout イベントでは、マウスへのハンドルの距離を計算し、それに基づいて HandleUtility.AddControl を呼び出します。

EventType.Repaint イベントでは、ハンドルの形を描画します。

Arrow Handle Cap in the Scene View.

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

using UnityEngine;

public class ArrowExample : MonoBehaviour {}

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

using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(ArrowExample))] public class ArrowExampleEditor : Editor { float size = 1f;

protected virtual void OnSceneGUI() { if (Event.current.type == EventType.Repaint) { Transform transform = ((ArrowExample)target).transform; Handles.color = Handles.xAxisColor; Handles.ArrowHandleCap( 0, transform.position + new Vector3(3f, 0f, 0f), transform.rotation * Quaternion.LookRotation(Vector3.right), size, EventType.Repaint ); Handles.color = Handles.yAxisColor; Handles.ArrowHandleCap( 0, transform.position + new Vector3(0f, 3f, 0f), transform.rotation * Quaternion.LookRotation(Vector3.up), size, EventType.Repaint ); Handles.color = Handles.zAxisColor; Handles.ArrowHandleCap( 0, transform.position + new Vector3(0f, 0f, 3f), transform.rotation * Quaternion.LookRotation(Vector3.forward), size, EventType.Repaint ); } } }