Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media3D / AxisAngleRotation3D.cs / 1305600 / AxisAngleRotation3D.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Media.Media3D { ////// A rotation in 3-space defined by an axis and an angle to rotate about that axis. /// public partial class AxisAngleRotation3D { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Default constructor that creates a rotation with Axis (0,1,0) and Angle of 0. /// public AxisAngleRotation3D() {} ////// Constructor taking axis and angle. /// public AxisAngleRotation3D(Vector3D axis, double angle) { Axis = axis; Angle = angle; } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ //----------------------------------------------------- // // Public Events // //------------------------------------------------------ //----------------------------------------------------- // // Internal Properties // //----------------------------------------------------- #region Internal Properties // Used by animation to get a snapshot of the current rotational // configuration for interpolation in Rotation3DAnimations. internal override Quaternion InternalQuaternion { get { if (_cachedQuaternionValue == c_dirtyQuaternion) { Vector3D axis = Axis; // Quaternion's axis/angle ctor throws if the axis has zero length. // // This threshold needs to match the one we used in D3DXVec3Normalize (d3dxmath9.cpp) // and in unmanaged code. See also AxisAngleRotation3D.cpp. if (axis.LengthSquared > DoubleUtil.FLT_MIN) { _cachedQuaternionValue = new Quaternion(axis, Angle); } else { // If we have a zero-length axis we return identity (i.e., // we consider this to be no rotation.) _cachedQuaternionValue = Quaternion.Identity; } } return _cachedQuaternionValue; } } #endregion Internal Properties internal void AxisPropertyChangedHook(DependencyPropertyChangedEventArgs e) { _cachedQuaternionValue = c_dirtyQuaternion; } internal void AnglePropertyChangedHook(DependencyPropertyChangedEventArgs e) { _cachedQuaternionValue = c_dirtyQuaternion; } //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ private Quaternion _cachedQuaternionValue = c_dirtyQuaternion; // Arbitrary quaternion that will signify that our cached quat is dirty // Reasonable quaternions are normalized so it's very unlikely that this // will ever occurr in a normal application. internal static readonly Quaternion c_dirtyQuaternion = new Quaternion( Math.E, Math.PI, Math.E * Math.PI, 55.0 ); } } // 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. // // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Media.Media3D { ////// A rotation in 3-space defined by an axis and an angle to rotate about that axis. /// public partial class AxisAngleRotation3D { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Default constructor that creates a rotation with Axis (0,1,0) and Angle of 0. /// public AxisAngleRotation3D() {} ////// Constructor taking axis and angle. /// public AxisAngleRotation3D(Vector3D axis, double angle) { Axis = axis; Angle = angle; } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ //----------------------------------------------------- // // Public Events // //------------------------------------------------------ //----------------------------------------------------- // // Internal Properties // //----------------------------------------------------- #region Internal Properties // Used by animation to get a snapshot of the current rotational // configuration for interpolation in Rotation3DAnimations. internal override Quaternion InternalQuaternion { get { if (_cachedQuaternionValue == c_dirtyQuaternion) { Vector3D axis = Axis; // Quaternion's axis/angle ctor throws if the axis has zero length. // // This threshold needs to match the one we used in D3DXVec3Normalize (d3dxmath9.cpp) // and in unmanaged code. See also AxisAngleRotation3D.cpp. if (axis.LengthSquared > DoubleUtil.FLT_MIN) { _cachedQuaternionValue = new Quaternion(axis, Angle); } else { // If we have a zero-length axis we return identity (i.e., // we consider this to be no rotation.) _cachedQuaternionValue = Quaternion.Identity; } } return _cachedQuaternionValue; } } #endregion Internal Properties internal void AxisPropertyChangedHook(DependencyPropertyChangedEventArgs e) { _cachedQuaternionValue = c_dirtyQuaternion; } internal void AnglePropertyChangedHook(DependencyPropertyChangedEventArgs e) { _cachedQuaternionValue = c_dirtyQuaternion; } //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ private Quaternion _cachedQuaternionValue = c_dirtyQuaternion; // Arbitrary quaternion that will signify that our cached quat is dirty // Reasonable quaternions are normalized so it's very unlikely that this // will ever occurr in a normal application. internal static readonly Quaternion c_dirtyQuaternion = new Quaternion( Math.E, Math.PI, Math.E * Math.PI, 55.0 ); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- BufferedGraphicsContext.cs
- SHA1CryptoServiceProvider.cs
- WebPartCloseVerb.cs
- ObjectDataSourceView.cs
- SimpleWorkerRequest.cs
- formatter.cs
- DispatcherExceptionFilterEventArgs.cs
- MailWebEventProvider.cs
- UnsafeNativeMethods.cs
- WeakReferenceEnumerator.cs
- HelpEvent.cs
- WebMessageEncoderFactory.cs
- Quaternion.cs
- SQLMoney.cs
- Array.cs
- Pointer.cs
- DataContractFormatAttribute.cs
- AnyReturnReader.cs
- TreeWalker.cs
- FixedFindEngine.cs
- SqlXml.cs
- HttpModuleAction.cs
- TrackingServices.cs
- CodeGen.cs
- DesignerOptionService.cs
- InternalTypeHelper.cs
- odbcmetadatacolumnnames.cs
- ConnectionAcceptor.cs
- EventDescriptorCollection.cs
- EncryptedPackage.cs
- ItemCheckedEvent.cs
- MemberAccessException.cs
- Parser.cs
- dtdvalidator.cs
- IncrementalCompileAnalyzer.cs
- EndpointDispatcherTable.cs
- CLSCompliantAttribute.cs
- DisplayNameAttribute.cs
- TextMessageEncodingElement.cs
- StateDesigner.Helpers.cs
- DrawTreeNodeEventArgs.cs
- SemanticTag.cs
- TransactionFlowAttribute.cs
- SendReply.cs
- MemberRelationshipService.cs
- SelectionRangeConverter.cs
- NetPeerTcpBinding.cs
- Cursor.cs
- RangeValueProviderWrapper.cs
- ExecutedRoutedEventArgs.cs
- SiteMapSection.cs
- PingReply.cs
- CompressedStack.cs
- SafeRightsManagementHandle.cs
- AnnotationComponentChooser.cs
- Regex.cs
- WebMessageBodyStyleHelper.cs
- CodeAssignStatement.cs
- SystemIPGlobalStatistics.cs
- XmlRawWriterWrapper.cs
- DateBoldEvent.cs
- TypeGeneratedEventArgs.cs
- XPathParser.cs
- StylusPointCollection.cs
- MatrixTransform.cs
- File.cs
- EntityViewGenerationAttribute.cs
- EastAsianLunisolarCalendar.cs
- RoleManagerModule.cs
- BoundField.cs
- ComplexLine.cs
- _LocalDataStore.cs
- TransformationRules.cs
- DetailsView.cs
- CheckBox.cs
- DesignTimeParseData.cs
- ProcessManager.cs
- WsatConfiguration.cs
- DrawItemEvent.cs
- OleDbParameterCollection.cs
- basevalidator.cs
- TextDecoration.cs
- TypeForwardedToAttribute.cs
- ToolStripOverflowButton.cs
- StreamSecurityUpgradeProvider.cs
- WindowsSlider.cs
- CapacityStreamGeometryContext.cs
- TextServicesCompartmentEventSink.cs
- TextTreeInsertElementUndoUnit.cs
- GridViewRowPresenterBase.cs
- MessageContractImporter.cs
- SqlCommandSet.cs
- HttpRequestCacheValidator.cs
- ErrorTolerantObjectWriter.cs
- InvalidCommandTreeException.cs
- TCEAdapterGenerator.cs
- FolderLevelBuildProviderAppliesToAttribute.cs
- SemanticTag.cs
- TextOutput.cs
- PeerMaintainer.cs