Legacy Documentation: Version 5.2
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Handles.Label

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public static function Label(position: Vector3, text: string): void;
public static void Label(Vector3 position, string text);
public static function Label(position: Vector3, image: Texture): void;
public static void Label(Vector3 position, Texture image);
public static function Label(position: Vector3, content: GUIContent): void;
public static void Label(Vector3 position, GUIContent content);
public static function Label(position: Vector3, text: string, style: GUIStyle): void;
public static void Label(Vector3 position, string text, GUIStyle style);
public static function Label(position: Vector3, content: GUIContent, style: GUIStyle): void;
public static void Label(Vector3 position, GUIContent content, GUIStyle style);

Parameters

position Position in 3D space as seen from the current handle camera.
text Text to display on the label.
image Texture to display on the label.
content Text, image and tooltip for this label.
style The style to use. If left out, the label style from the current GUISkin is used.

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

Description

Make a text label positioned in 3D space.

Labels have no user interaction, do not catch mouse clicks and are always rendered in normal style.


Label in the Scene View.

	// Create a 180 degrees wire arc with a ScaleValueHandle attached to the disc
	// that lets you modify the "shieldArea" var in the WireArcExample.js, also
	// lets you visualize some info of the transform
	
		// cast & store references
		Shield shield = (target as Shield);
		Transform transform = shield.transform;
		
		// 3D UI: arc and scale handle
	    	Handles.color = Color.blue;
		Handles.DrawWireArc(transform.position, transform.up, -transform.right, 180, shield.shieldArea);
		shield.shieldArea = Handles.ScaleValueHandle( shield.shieldArea, transform.position + transform.forward*shield.shieldArea, transform.rotation, 1, Handles.ConeCap, 1);
		
		// start of 2D UI section
		Handles.BeginGUI();
		
		// information label
		Handles.Label(transform.position + Vector3.right*2, "Shield Area: " +shield.shieldArea);
		
		// reset button:
		GUILayout.BeginArea(new Rect(Screen.width - 100, Screen.height - 80, 90,50));
		if(GUILayout.Button("Reset Area")) { shield.shieldArea = 5; }
		GUILayout.EndArea();
		
		// end of 2D UI section
		Handles.EndGUI();
	
	    }
	}

And the script attached to the Game Object which should show the custom handles:

	// DummyLavelScript.js
	
	var shieldArea : float = 5;