Model3DGroup.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media3D / Model3DGroup.cs / 1305600 / Model3DGroup.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: 3D model collection. 
//
//              See spec at http://avalon/medialayer/Specifications/Avalon3D%20API%20Spec.mht 
//
// History:
//  06/28/2003 : t-gregr - Created
// 
//---------------------------------------------------------------------------
 
using System; 
using System.Collections;
using System.Diagnostics; 
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Media3D;
using System.Windows.Markup; 
using MS.Internal;
using MS.Internal.Media3D; 
 
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID; 

namespace System.Windows.Media.Media3D
{
    ///  
    /// 3D model group.
    ///  
    [ContentProperty("Children")] 
    public sealed partial class Model3DGroup : Model3D
    { 
        //-----------------------------------------------------
        //
        //  Constructors
        // 
        //-----------------------------------------------------
 
        #region Constructors 

        ///  
        ///     Default constructor.
        /// 
        public Model3DGroup() {}
 
        #endregion Constructors
 
        //------------------------------------------------------ 
        //
        //  Internal Methods 
        //
        //-----------------------------------------------------

        #region Internal Methods 

        internal override void RayHitTestCore( 
            RayHitTestParameters rayParams) 
        {
            Model3DCollection children = Children; 

            if (children == null)
            {
                return; 
            }
 
            for (int i = children.Count - 1; i >= 0; i--) 
            {
                Model3D child = children.Internal_GetItem(i); 

                // Perform the hit-test against the child.
                child.RayHitTest(rayParams);
            } 
        }
 
        internal override Rect3D CalculateSubgraphBoundsInnerSpace() 
        {
            Model3DCollection children = Children; 

            if (children == null)
            {
                return Rect3D.Empty; 
            }
 
            Rect3D bounds = Rect3D.Empty; 

            for (int i = 0, count = children.Count; i < count; i++) 
            {
                Model3D child = children.Internal_GetItem(i);

                // Calls CSBOS rather than Bounds to avoid ReadPreamble. 
                bounds.Union(child.CalculateSubgraphBoundsOuterSpace());
            } 
 
            return bounds;
        } 

        #endregion Internal Methods

        //------------------------------------------------------ 
        //
        //  Internal Properties 
        // 
        //------------------------------------------------------
 
        #region Internal Properties

        // named EmptyGroup not to collide with public Model3D.Empty
        internal static Model3DGroup EmptyGroup 
        {
            get 
            { 
                if (s_empty == null)
                { 
                    s_empty = new Model3DGroup();
                    s_empty.Freeze();
                }
                return s_empty; 
            }
        } 
 
        #endregion Internal Properties
 
        //-----------------------------------------------------
        //
        //  Private Fields
        // 
        //------------------------------------------------------
 
        #region Private Fields 

        private static Model3DGroup s_empty; 

        #endregion Private Fields
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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