Point4D.cs source code in C# .NET

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Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media3D / Point4D.cs / 1 / Point4D.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: 4D point implementation. 
//
//              See spec at [....]/medialayer/Specifications/Avalon3D%20API%20Spec.mht 
//
// History:
//  06/04/2003 : [....] - Created
// 
//---------------------------------------------------------------------------
 
using System.Windows; 
using System.Windows.Media.Media3D;
 
using System;

namespace System.Windows.Media.Media3D
{ 
    /// 
    /// Point4D - 4D point representation. 
    /// Defaults to (0,0,0,0). 
    /// 
    public partial struct Point4D 
    {
        //-----------------------------------------------------
        //
        //  Constructors 
        //
        //----------------------------------------------------- 
 
        #region Constructors
 
        /// 
        /// Constructor that sets point's initial values.
        /// 
        /// Value of the X coordinate of the new point. 
        /// Value of the Y coordinate of the new point.
        /// Value of the Z coordinate of the new point. 
        /// Value of the W coordinate of the new point. 
        public Point4D(double x, double y, double z, double w)
        { 
            _x = x;
            _y = y;
            _z = z;
            _w = w; 
        }
 
        #endregion Constructors 

 
        //------------------------------------------------------
        //
        //  Public Methods
        // 
        //-----------------------------------------------------
 
        #region Public Methods 

        ///  
        /// Offset - update point position by adding deltaX to X, deltaY to Y, deltaZ to Z, and deltaW to W.
        /// 
        /// Offset in the X direction.
        /// Offset in the Y direction. 
        /// Offset in the Z direction.
        /// Offset in the W direction. 
        public void Offset(double deltaX, double deltaY, double deltaZ, double deltaW) 
        {
            _x += deltaX; 
            _y += deltaY;
            _z += deltaZ;
            _w += deltaW;
        } 

        ///  
        /// Addition. 
        /// 
        /// First point being added. 
        /// Second point being added.
        /// Result of addition.
        public static Point4D operator +(Point4D point1, Point4D point2)
        { 
            return new Point4D(point1._x + point2._x,
                               point1._y + point2._y, 
                               point1._z + point2._z, 
                               point1._w + point2._w);
        } 

        /// 
        /// Addition.
        ///  
        /// First point being added.
        /// Second point being added. 
        /// Result of addition. 
        public static Point4D Add(Point4D point1, Point4D point2)
        { 
            return new Point4D(point1._x + point2._x,
                               point1._y + point2._y,
                               point1._z + point2._z,
                               point1._w + point2._w); 
        }
 
        ///  
        /// Subtraction.
        ///  
        /// Point from which we are subtracting the second point.
        /// Point being subtracted.
        /// Vector between the two points.
        public static Point4D operator -(Point4D point1, Point4D point2) 
        {
            return new Point4D(point1._x - point2._x, 
                               point1._y - point2._y, 
                               point1._z - point2._z,
                               point1._w - point2._w); 
        }

        /// 
        /// Subtraction. 
        /// 
        /// Point from which we are subtracting the second point. 
        /// Point being subtracted. 
        /// Vector between the two points.
        public static Point4D Subtract(Point4D point1, Point4D point2) 
        {
            return new Point4D(point1._x - point2._x,
                               point1._y - point2._y,
                               point1._z - point2._z, 
                               point1._w - point2._w);
        } 
 
        /// 
        /// Point4D * Matrix3D multiplication. 
        /// 
        /// Point being transformed.
        /// Transformation matrix applied to the point.
        /// Result of the transformation matrix applied to the point. 
        public static Point4D operator *(Point4D point, Matrix3D matrix)
        { 
            return matrix.Transform(point); 
        }
 
        /// 
        /// Point4D * Matrix3D multiplication.
        /// 
        /// Point being transformed. 
        /// Transformation matrix applied to the point.
        /// Result of the transformation matrix applied to the point. 
        public static Point4D Multiply(Point4D point, Matrix3D matrix) 
        {
            return matrix.Transform(point); 
        }

        #endregion Public Methods
    } 
}

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

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