static function ScaleValueHandle (value : float, position : Vector3, rotation : Quaternion, size : float, capFunc : DrawCapFunction, snap : float) : float

Parameters

Description

Make a single-float draggable handle.

This is used to make the center scale handle. The user can click and drag to scale a single float up and down.

Scale Value handle in the scene view with an arrow cap as the handle.

    // Increase/decrease a value just by moving an Arrow Handle
    
    @CustomEditor (ScaleValueModifier)
    class ScaleValue extends Editor {
        function OnSceneGUI () {
            target.floatVal = 
                Handles.ScaleValueHandle(target.floatVal,
                         target.transform.position,
                         Quaternion.identity,
                         30,
                         Handles.ArrowCap,
                         1);                                  
            if (GUI.changed)
                EditorUtility.SetDirty (target);
        }
    }

And the script attached to this Handle:

    // ScaleValueModifier.js
    // Usage: Place this script on the Game Object 
    // you want to modify "floatVal" by dragging the Arrow Handle
    
    @script ExecuteInEditMode()
    
    var floatVal : float = 1;
    
    function Update() {
        Debug.Log("Value Modified: " + floatVal);
    }