Image.fillOrigin

Description

Controls the origin point of the Fill process. Value means different things with each fill method.

You should cast to the appropriate origin type: Image.OriginHorizontal, Image.OriginVertical, Image.Origin90, Image.Origin180 or [[Image.Origin360] depending on the Image.Fillmethod.

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

[RequireComponent(typeof(Image))]
public class ImageOriginCycle : MonoBehaviour
{
    void OnEnable()
    {
        Image image = GetComponent<Image>();
        string fillOriginName = "";

        switch ((Image.FillMethod)image.fillMethod)
        {
            case Image.FillMethod.Horizontal:
                fillOriginName = ((Image.OriginHorizontal)image.fillOrigin).ToString();
                break;
            case Image.FillMethod.Vertical:
                fillOriginName = ((Image.OriginVertical)image.fillOrigin).ToString();
                break;
            case Image.FillMethod.Radial90:

                fillOriginName = ((Image.Origin90)image.fillOrigin).ToString();
                break;
            case Image.FillMethod.Radial180:

                fillOriginName = ((Image.Origin180)image.fillOrigin).ToString();
                break;
            case Image.FillMethod.Radial360:
                fillOriginName = ((Image.Origin360)image.fillOrigin).ToString();
                break;
        }
        Debug.Log(string.Format("{0} is using {1} fill method with the origin on {2}", name, image.fillMethod, fillOriginName));
    }
}

Note: This will only have any effect if the Image.type is set to Image.Type.Filled.