Handles.ScaleSlider

static function ScaleSlider (scale : float, position : Vector3, direction : Vector3, rotation : Quaternion, size : float, snap : float) : float

Parameters

Name	Description
scale	The value the user can modify.
position	The position of the handle.
direction	The direction of the handle.
rotation	The rotation of whole object.
size	The size of the handle.
snap	The new value after the user has modified it. Note: Use HandleUtility.GetHandleSize where you might want to have constant screen-sized handles.

Description

Make a directional scale slider

Scale slider handle in the Scene View.

// Increase/decrease a value just by moving the Scale slider Handle


@CustomEditor (FreeScale)
class FreeScaleHandleJS extends Editor {
    function OnSceneGUI () {
        target.val = Handles.ScaleSlider(target.val, 
                        target.transform.position, 
                        Vector3.up, 
                        Quaternion.identity, 
                        5, 
                        HandleUtility.GetHandleSize(target.transform.position));
        if (GUI.changed)
            EditorUtility.SetDirty (target);
    }
}

And the script attached to this handle:

// FreeScale.js
@script ExecuteInEditMode()

var val : float = 1;

function Update () {
    Debug.Log("Value tied to the slider: " + val);
}