Transform3D.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media3D / Transform3D.cs / 3 / Transform3D.cs
                        
                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: 3D transform implementation. 
//
//              See spec at [....]/medialayer/Specifications/Avalon3D%20API%20Spec.mht 
//
// History:
//  06/04/2003 : [....] - Created
// 
//---------------------------------------------------------------------------
 
using MS.Internal.Media3D; 
using MS.Internal.PresentationCore;
using System; 
using System.Diagnostics;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Composition; 

 
namespace System.Windows.Media.Media3D 
{
    ///  
    ///     3D transformation.
    /// 
    [Localizability(LocalizationCategory.None, Readability = Readability.Unreadable)] // cannot be read & localized as string
    public abstract partial class Transform3D : GeneralTransform3D 
    {
        //----------------------------------------------------- 
        // 
        //  Constructors
        // 
        //-----------------------------------------------------

        #region Constructors
 
        // Prevent 3rd parties from extending this abstract base class.
        internal Transform3D() {} 
 
        #endregion Constructors
 
        //------------------------------------------------------
        //
        //  Public Methods
        // 
        //-----------------------------------------------------
 
        #region Public Methods 

        ///  
        ///     Transforms the given point.
        /// 
        /// Point to transform.
        /// Transformed point. 
        public new Point3D Transform(Point3D point)
        { 
            // this function is included due to forward compatability reasons 
            return base.Transform(point);
        } 


        /// 
        ///     Transforms the given vector. 
        /// 
        /// Vector to transform. 
        /// Transformed vector. 
        public Vector3D Transform(Vector3D vector)
        { 
            return Value.Transform(vector);
        }

        ///  
        ///     Transforms the given point.
        ///  
        /// Point to transform. 
        /// Transformed point.
        public Point4D Transform(Point4D point) 
        {
            return Value.Transform(point);
        }
 
        /// 
        ///     Transforms the given list of points. 
        ///  
        /// List of points.
        public void Transform(Point3D[] points) 
        {
            Value.Transform(points);
        }
 
        /// 
        ///     Transforms the given list of vectors. 
        ///  
        /// List of vectors.
        public void Transform(Vector3D[] vectors) 
        {
            Value.Transform(vectors);
        }
 
        /// 
        ///     Transforms the given list of points. 
        ///  
        /// List of points.
        public void Transform(Point4D[] points) 
        {
            Value.Transform(points);
        }
 
        /// 
        /// Transform a point 
        ///  
        /// Input point
        /// Output point 
        /// True if the point was transformed successfuly, false otherwise
        public override bool TryTransform(Point3D inPoint, out Point3D result)
        {
            result = Value.Transform(inPoint); 
            return true;
        } 
 
        /// 
        /// Transforms the bounding box to the smallest axis aligned bounding box 
        /// that contains all the points in the original bounding box
        /// 
        /// Bounding box
        /// The transformed bounding box 
        public override Rect3D TransformBounds(Rect3D rect)
        { 
            return M3DUtil.ComputeTransformedAxisAlignedBoundingBox(ref rect, this); 
        }
 
        /// 
        /// Returns the inverse transform if it has an inverse, null otherwise
        /// 
        public override GeneralTransform3D Inverse 
        {
            get 
            { 
                ReadPreamble();
 
                Matrix3D matrix = Value;

                if (!matrix.HasInverse)
                { 
                    return null;
                } 
 
                matrix.Invert();
                return new MatrixTransform3D(matrix); 
            }
        }

        ///  
        /// Returns a best effort affine transform
        ///  
        internal override Transform3D AffineTransform 
        {
            [FriendAccessAllowed] // Built into Core, also used by Framework. 
            get
            {
                return this;
            } 
        }
 
        #endregion Public Methods 

        //------------------------------------------------------ 
        //
        //  Public Properties
        //
        //------------------------------------------------------ 

        #region Public Properties 
 
        /// 
        ///     Identity transformation. 
        /// 
        public static Transform3D Identity
        {
            get 
            {
                // Make sure identity matrix is initialized. 
                if (s_identity == null) 
                {
                    MatrixTransform3D identity = new MatrixTransform3D(); 
                    identity.Freeze();
                    s_identity = identity;
                }
                return s_identity; 
            }
        } 
 
        /// 
        ///     Determines whether the matrix is affine. 
        /// 
        public abstract bool IsAffine {get;}

 
        /// 
        ///     Return the current transformation value. 
        ///  
        public abstract Matrix3D Value { get; }
 
        #endregion Public Properties

        internal abstract void Append(ref Matrix3D matrix);
 
        //-----------------------------------------------------
        // 
        //  Private Fields 
        //
        //------------------------------------------------------ 

        #region Private Fields

        private static Transform3D s_identity; 

        #endregion Private Fields 
 
    }
} 

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

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
Transform3D.cs source code in C# .NET

Source code for the .NET framework in C#

Code:

Link Menu
