Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / System / Windows / Media3D / GeneralTransform3DTo2D.cs / 1 / GeneralTransform3DTo2D.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Declaration of the GeneralTransform3DTo2D class. // //--------------------------------------------------------------------------- using System.Windows.Media; using System.Windows.Media.Animation; using SR = MS.Internal.PresentationCore.SR; using SRID = MS.Internal.PresentationCore.SRID; namespace System.Windows.Media.Media3D { ////// GeneralTransform3DTo2D class provides services to transform points and rects in 3D to 2D /// public class GeneralTransform3DTo2D : Freezable { internal GeneralTransform3DTo2D() { _transformBetween2D = null; } internal GeneralTransform3DTo2D(Matrix3D projectionTransform, GeneralTransform transformBetween2D) { _projectionTransform = projectionTransform; _transformBetween2D = (GeneralTransform)transformBetween2D.GetAsFrozen(); } ////// Transform a point /// /// Input point /// Output point ///True if the point was transformed successfuly, false otherwise public bool TryTransform(Point3D inPoint, out Point result) { bool success = false; result = new Point(); // project the point if (_projectionTransform != null) { Point3D projectedPoint = _projectionTransform.Transform(inPoint); if (_transformBetween2D != null) { result = _transformBetween2D.Transform(new Point(projectedPoint.X, projectedPoint.Y)); success = true; } } return success; } ////// Transform a point from 3D in to 2D /// /// If the transformation does not succeed, this will throw an InvalidOperationException. /// If you don't want to try/catch, call TryTransform instead and check the boolean it /// returns. /// /// /// Input point ///The transformed point public Point Transform(Point3D point) { Point transformedPoint; if (!TryTransform(point, out transformedPoint)) { throw new InvalidOperationException(SR.Get(SRID.GeneralTransform_TransformFailed, null)); } return transformedPoint; } ////// Transform a Rect3D to a Rect. If this transformation cannot be completed Rect.Empty is returned. /// /// Input 3D bounding box ///The 2D bounding box of the projection of these points public Rect TransformBounds(Rect3D rect3D) { if (_transformBetween2D != null) { return _transformBetween2D.TransformBounds(MILUtilities.ProjectBounds(ref _projectionTransform, ref rect3D)); } else { return Rect.Empty; } } ////// Implementation of ///Freezable.CreateInstanceCore . ///The new Freezable. protected override Freezable CreateInstanceCore() { return new GeneralTransform3DTo2D(); } ////// Implementation of /// protected override void CloneCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.CloneCore(sourceFreezable); CopyCommon(transform); } ///Freezable.CloneCore . ////// Implementation of /// protected override void CloneCurrentValueCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.CloneCurrentValueCore(sourceFreezable); CopyCommon(transform); } ///Freezable.CloneCurrentValueCore . ////// Implementation of /// protected override void GetAsFrozenCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.GetAsFrozenCore(sourceFreezable); CopyCommon(transform); } ///Freezable.GetAsFrozenCore . ////// Implementation of /// protected override void GetCurrentValueAsFrozenCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.GetCurrentValueAsFrozenCore(sourceFreezable); CopyCommon(transform); } ///Freezable.GetCurrentValueAsFrozenCore . ////// Clones values that do not have corresponding DPs /// /// private void CopyCommon(GeneralTransform3DTo2D transform) { _projectionTransform = transform._projectionTransform; _transformBetween2D = transform._transformBetween2D; } private Matrix3D _projectionTransform; private GeneralTransform _transformBetween2D; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Declaration of the GeneralTransform3DTo2D class. // //--------------------------------------------------------------------------- using System.Windows.Media; using System.Windows.Media.Animation; using SR = MS.Internal.PresentationCore.SR; using SRID = MS.Internal.PresentationCore.SRID; namespace System.Windows.Media.Media3D { ////// GeneralTransform3DTo2D class provides services to transform points and rects in 3D to 2D /// public class GeneralTransform3DTo2D : Freezable { internal GeneralTransform3DTo2D() { _transformBetween2D = null; } internal GeneralTransform3DTo2D(Matrix3D projectionTransform, GeneralTransform transformBetween2D) { _projectionTransform = projectionTransform; _transformBetween2D = (GeneralTransform)transformBetween2D.GetAsFrozen(); } ////// Transform a point /// /// Input point /// Output point ///True if the point was transformed successfuly, false otherwise public bool TryTransform(Point3D inPoint, out Point result) { bool success = false; result = new Point(); // project the point if (_projectionTransform != null) { Point3D projectedPoint = _projectionTransform.Transform(inPoint); if (_transformBetween2D != null) { result = _transformBetween2D.Transform(new Point(projectedPoint.X, projectedPoint.Y)); success = true; } } return success; } ////// Transform a point from 3D in to 2D /// /// If the transformation does not succeed, this will throw an InvalidOperationException. /// If you don't want to try/catch, call TryTransform instead and check the boolean it /// returns. /// /// /// Input point ///The transformed point public Point Transform(Point3D point) { Point transformedPoint; if (!TryTransform(point, out transformedPoint)) { throw new InvalidOperationException(SR.Get(SRID.GeneralTransform_TransformFailed, null)); } return transformedPoint; } ////// Transform a Rect3D to a Rect. If this transformation cannot be completed Rect.Empty is returned. /// /// Input 3D bounding box ///The 2D bounding box of the projection of these points public Rect TransformBounds(Rect3D rect3D) { if (_transformBetween2D != null) { return _transformBetween2D.TransformBounds(MILUtilities.ProjectBounds(ref _projectionTransform, ref rect3D)); } else { return Rect.Empty; } } ////// Implementation of ///Freezable.CreateInstanceCore . ///The new Freezable. protected override Freezable CreateInstanceCore() { return new GeneralTransform3DTo2D(); } ////// Implementation of /// protected override void CloneCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.CloneCore(sourceFreezable); CopyCommon(transform); } ///Freezable.CloneCore . ////// Implementation of /// protected override void CloneCurrentValueCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.CloneCurrentValueCore(sourceFreezable); CopyCommon(transform); } ///Freezable.CloneCurrentValueCore . ////// Implementation of /// protected override void GetAsFrozenCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.GetAsFrozenCore(sourceFreezable); CopyCommon(transform); } ///Freezable.GetAsFrozenCore . ////// Implementation of /// protected override void GetCurrentValueAsFrozenCore(Freezable sourceFreezable) { GeneralTransform3DTo2D transform = (GeneralTransform3DTo2D)sourceFreezable; base.GetCurrentValueAsFrozenCore(sourceFreezable); CopyCommon(transform); } ///Freezable.GetCurrentValueAsFrozenCore . ////// Clones values that do not have corresponding DPs /// /// private void CopyCommon(GeneralTransform3DTo2D transform) { _projectionTransform = transform._projectionTransform; _transformBetween2D = transform._transformBetween2D; } private Matrix3D _projectionTransform; private GeneralTransform _transformBetween2D; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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