Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media3D / Size3D.cs / 1 / Size3D.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: 3D size implementation. // // // // History: // 06/26/2003 : [....] - Created // //--------------------------------------------------------------------------- using System.Windows; using System.Windows.Media.Media3D; using System; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Media.Media3D { ////// Size3D - A value type which defined a size in terms of non-negative width, /// length, and height. /// public partial struct Size3D { #region Constructors ////// Constructor which sets the size's initial values. Values must be non-negative. /// /// X dimension of the new size. /// Y dimension of the new size. /// Z dimension of the new size. public Size3D(double x, double y, double z) { if (x < 0 || y < 0 || z < 0) { throw new System.ArgumentException(SR.Get(SRID.Size3D_DimensionCannotBeNegative)); } _x = x; _y = y; _z = z; } #endregion Constructors #region Statics ////// Empty - a static property which provides an Empty size. X, Y, and Z are /// negative-infinity. This is the only situation /// where size can be negative. /// public static Size3D Empty { get { return s_empty; } } #endregion Statics #region Public Methods and Properties ////// IsEmpty - this returns true if this size is the Empty size. /// Note: If size is 0 this Size3D still contains a 0, 1, or 2 dimensional set /// of points, so this method should not be used to check for 0 volume. /// public bool IsEmpty { get { return _x < 0; } } ////// Size in X dimension. Default is 0, must be non-negative. /// public double X { get { return _x; } set { if (IsEmpty) { throw new System.InvalidOperationException(SR.Get(SRID.Size3D_CannotModifyEmptySize)); } if (value < 0) { throw new System.ArgumentException(SR.Get(SRID.Size3D_DimensionCannotBeNegative)); } _x = value; } } ////// Size in Y dimension. Default is 0, must be non-negative. /// public double Y { get { return _y; } set { if (IsEmpty) { throw new System.InvalidOperationException(SR.Get(SRID.Size3D_CannotModifyEmptySize)); } if (value < 0) { throw new System.ArgumentException(SR.Get(SRID.Size3D_DimensionCannotBeNegative)); } _y = value; } } ////// Size in Z dimension. Default is 0, must be non-negative. /// public double Z { get { return _z; } set { if (IsEmpty) { throw new System.InvalidOperationException(SR.Get(SRID.Size3D_CannotModifyEmptySize)); } if (value < 0) { throw new System.ArgumentException(SR.Get(SRID.Size3D_DimensionCannotBeNegative)); } _z = value; } } #endregion Public Methods #region Public Operators ////// Explicit conversion to Vector. /// /// The size to convert to a vector. ///A vector equal to this size. public static explicit operator Vector3D(Size3D size) { return new Vector3D(size._x, size._y, size._z); } ////// Explicit conversion to point. /// /// The size to convert to a point. ///A point equal to this size. public static explicit operator Point3D(Size3D size) { return new Point3D(size._x, size._y, size._z); } #endregion Public Operators #region Private Methods private static Size3D CreateEmptySize3D() { Size3D empty = new Size3D(); // Can't use setters because they throw on negative values empty._x = Double.NegativeInfinity; empty._y = Double.NegativeInfinity; empty._z = Double.NegativeInfinity; return empty; } #endregion Private Methods #region Private Fields private readonly static Size3D s_empty = CreateEmptySize3D(); #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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