UIAtlas.Coordinates doesn't exist in NGUI 3?

[aikitect]

Hello, I am trying to generate an atlas at runtime, and in NGUI <2.7.0, I used the following code:

1.                 UIAtlas atlas = gameObject.AddComponent("UIAtlas") as UIAtlas;
2.  
3.                 yield return StartCoroutine(Assets.DownloadAssetBundle(url, version));
4.                 AssetBundle bundle = Assets.GetAssetBundle(url, version);
5.                 AssetBundleRequest pngRequest = bundle.LoadAsync(key, typeof(Texture2D));
6.                 AssetBundleRequest txtRequest = bundle.LoadAsync(key, typeof(TextAsset));
7.                 yield return pngRequest.isDone && txtRequest.isDone;
8.                 Material mat = new Material(Shader.Find("Unlit/Transparent Colored"));
9.                 mat.mainTexture = pngRequest.asset as Texture2D;
10.                 atlas.spriteMaterial = mat;
11.                 atlas.coordinates = UIAtlas.Coordinates.Pixels;
12.                 atlas.pixelSize = 0.5f;
13.                 NGUIJson.LoadSpriteData(atlas, txtRequest.asset as TextAsset);
14.  

However, in NGUI 3, I get a Unity error that states that UIAtlas.Coordinates is protected, and atlas.coordinates does not exist.  Can I just delete that line, or do I need to substitute it with another line?  Also, are there any other changes that need to be made to update the above function?

[ArenMook]

NGUI 3+ works with pixels, not texture coordinates. What is it you're trying to do there? If you're tring to display a downloaded texture, use UITexture not a sprite.