Easier way to get Screen Rect of a Panel

[vbalbio]

Hi guys, i'm using Ngui but i need to get the Rect in screen coords of a Panel to send to another system.

I wrote this code below but it have limitations such it only works when using a Panel with center X=0,Y=0
There's a easier way to get it? I spend one day work to understand how NGUI works and make this code, looks like NGUI don't like too much give to us space screen coords, it's really sad for a GUI system. 

1.  
2. function GetPanelRect()
3. {
4.        
5.         var Root = GUIRoot.GetComponent(UIRoot); // The Root of the GUI
6.         var UI_RootHeight = Root.manualHeight;
7.         var UI_RootWidth = UI_RootHeight * (parseFloat(Screen.width)/Screen.height);
8.        
9.         // Need to Keep Center X = 0 e Y = 0
10.         var Panel = transform.GetComponent(UIPanel);
11.         // Local Coordinates
12.         var UI_PanelLocalwidth = (Panel.GetSides(transform)[2][0])*2;
13.         var UI_PanelLocalheight = (Panel.GetSides(transform)[1][1])*2;
14.        
15.         // Screen Coordinates
16.         var UI_PanelScreenWidth = (UI_PanelLocalwidth*Screen.width)/ UI_RootWidth;
17.         var UI_PanelScreenHeight = (UI_PanelLocalheight*Screen.height)/ UI_RootHeight; 
18.        
19.         var View = GameObject.Find("GUI_Cam").camera.WorldToScreenPoint(transform.position);
20.        
21.         var FinalRect = new Rect(View[0],View[1],UI_PanelScreenWidth,UI_PanelScreenHeight);
22.         return FinalRect;
23. }
24.  
25.  

[vbalbio]

For record i fixed the Center limitation, now it's working nice. but i yet think it's too much code for a simple GetRect function. If anyone have a better solution post please, if anyone need to use some like that, here's the code i'm using now:

1. function GetPanelRect(){
2.        
3.         // Root NGUI object, set it in Editor, GUIroot is a public GameObject
4.         var Root = GUIRoot.GetComponent(UIRoot);
5.         var UI_RootHeight = Root.manualHeight;
6.         var UI_RootWidth = UI_RootHeight * (parseFloat(Screen.width)/Screen.height);
7.        
8.         // The Panel Component of this object
9.         var Panel = transform.GetComponent(UIPanel);
10.        
11.         // Local Coordinates
12.         var ClipRegion = Panel.finalClipRegion;
13.         var UI_PanelLocalwidth = ClipRegion[2]; // Panel Width
14.         var UI_PanelLocalheight = ClipRegion[3]; // Panel Heigth
15.        
16.         // Screen Coordinates
17.         var UI_PanelScreenWidth = (UI_PanelLocalwidth*Screen.width)/ UI_RootWidth;
18.         var UI_PanelScreenHeight = (UI_PanelLocalheight*Screen.height)/ UI_RootHeight; 
19.        
20.         var View = GameObject.Find("GUI_Cam").camera.WorldToScreenPoint(transform.position);
21.        
22.         // Offset to Screen Coordinates
23.         var OffsetX = ClipRegion[0]*Screen.width/UI_RootWidth;
24.         var OffsetY = ClipRegion[1]*Screen.height/UI_RootHeight;
25.        
26.         var FinalRect = new Rect(View[0]+OffsetX,View[1]+OffsetY,UI_PanelScreenWidth,UI_PanelScreenHeight);
27.         return FinalRect;
28. }
29.  

[PoN]

NGUI has a methods for calculating bounds, so try these methods -    NGUIMath.CalculateAbsoluteWidgetBounds(...) , NGUIMath.CalculateRelativeWidgetBounds(...) .

[ArenMook]

Screen rect of a panel? Panels only have a rect if they're using clipping. If you want the on-screen dimensions of this rectangle, take the panel's worldCorners and transform them from world space to screen space.

[vbalbio]

I'm using Clipping in fact, i'm using it to delimitation of a screen space. Get the corners in world coords can be easier than what i did. Thanks for help, i will take a look on it