Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Core / CSharp / System / Windows / Media3D / RayHitTestParameters.cs / 1 / RayHitTestParameters.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // History: // 03/16/2004 : [....] - Created // //--------------------------------------------------------------------------- using System; using System.IO; using System.Diagnostics; using System.Collections.Generic; using MS.Internal.Media3D; using CultureInfo = System.Globalization.CultureInfo; namespace System.Windows.Media.Media3D { ////// Encapsulates a set parameters for performing a 3D hit test agaist /// a ray. /// public sealed class RayHitTestParameters : HitTestParameters3D { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Creates a RayHitTestParameters where the ray is described /// by an origin and a direction. /// public RayHitTestParameters(Point3D origin, Vector3D direction) { _origin = origin; _direction = direction; _isRay = true; } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ #region Public Properties ////// The origin of the ray to be used for hit testing. /// public Point3D Origin { get { return _origin; } } ////// The direction of the ray to be used for hit testing. /// public Vector3D Direction { get { return _direction; } } #endregion Public Properties //----------------------------------------------------- // // Public Events // //------------------------------------------------------ //----------------------------------------------------- // // Internal Methods // //----------------------------------------------------- #region Internal Methods internal void ReportResult( MeshGeometry3D meshHit, Point3D pointHit, double distanceToRayOrigin, int vertexIndex1, int vertexIndex2, int vertexIndex3, Point barycentric) { results.Add(new RayMeshGeometry3DHitTestResult( CurrentVisual, CurrentModel, meshHit, pointHit, distanceToRayOrigin, vertexIndex1, vertexIndex2, vertexIndex3, barycentric)); } internal HitTestResultBehavior RaiseCallback(HitTestResultCallback resultCallback, HitTestFilterCallback filterCallback, HitTestResultBehavior lastResult) { return RaiseCallback(resultCallback, filterCallback, lastResult, 0.0 /* distance adjustment */); } internal HitTestResultBehavior RaiseCallback(HitTestResultCallback resultCallback, HitTestFilterCallback filterCallback, HitTestResultBehavior lastResult, double distanceAdjustment) { results.Sort(RayHitTestResult.CompareByDistanceToRayOrigin); for(int i = 0, count = results.Count; i < count; i++) { RayHitTestResult result = results[i]; result.SetDistanceToRayOrigin(result.DistanceToRayOrigin + distanceAdjustment); Viewport2DVisual3D viewport2DVisual3D = result.VisualHit as Viewport2DVisual3D; if (viewport2DVisual3D != null) { Point intersectionPoint; Visual viewport2DVisual3DChild = viewport2DVisual3D.Visual; if (viewport2DVisual3DChild != null) { if (Viewport2DVisual3D.GetIntersectionInfo(result, out intersectionPoint)) { // convert the resulting point to visual coordinates Point visualPoint = Viewport2DVisual3D.TextureCoordsToVisualCoords(intersectionPoint, viewport2DVisual3DChild); GeneralTransform gt = viewport2DVisual3DChild.TransformToOuterSpace().Inverse; Point pointOnChild; if (gt != null && gt.TryTransform(visualPoint, out pointOnChild)) { HitTestResultBehavior behavior2D = viewport2DVisual3DChild.HitTestPoint(filterCallback, resultCallback, new PointHitTestParameters(pointOnChild)); if (behavior2D == HitTestResultBehavior.Stop) { return HitTestResultBehavior.Stop; } } } } } HitTestResultBehavior behavior = resultCallback(results[i]); if (behavior == HitTestResultBehavior.Stop) { return HitTestResultBehavior.Stop; } } return lastResult; } // Gets the hit testing line/ray specified as an origin and direction in // the current local space. internal void GetLocalLine(out Point3D origin, out Vector3D direction) { origin = _origin; direction = _direction; bool isRay = true; if (HasWorldTransformMatrix) { LineUtil.Transform(WorldTransformMatrix, ref origin, ref direction, out isRay); } // At any point along the tree walk we may encounter a transform that turns the ray into // a line and if so we must stay a line _isRay &= isRay; } internal void ClearResults() { if (results != null) { results.Clear(); } } #endregion Internal Methods internal bool IsRay { get { return _isRay; } } //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private readonly Point3D _origin; private readonly Vector3D _direction; private readonly Listresults = new List (); // 'true' if this is a ray hit test, 'false' if the ray has become a line private bool _isRay; #endregion Private Fields } } // 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. // // // History: // 03/16/2004 : [....] - Created // //--------------------------------------------------------------------------- using System; using System.IO; using System.Diagnostics; using System.Collections.Generic; using MS.Internal.Media3D; using CultureInfo = System.Globalization.CultureInfo; namespace System.Windows.Media.Media3D { ////// Encapsulates a set parameters for performing a 3D hit test agaist /// a ray. /// public sealed class RayHitTestParameters : HitTestParameters3D { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Creates a RayHitTestParameters where the ray is described /// by an origin and a direction. /// public RayHitTestParameters(Point3D origin, Vector3D direction) { _origin = origin; _direction = direction; _isRay = true; } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ #region Public Properties ////// The origin of the ray to be used for hit testing. /// public Point3D Origin { get { return _origin; } } ////// The direction of the ray to be used for hit testing. /// public Vector3D Direction { get { return _direction; } } #endregion Public Properties //----------------------------------------------------- // // Public Events // //------------------------------------------------------ //----------------------------------------------------- // // Internal Methods // //----------------------------------------------------- #region Internal Methods internal void ReportResult( MeshGeometry3D meshHit, Point3D pointHit, double distanceToRayOrigin, int vertexIndex1, int vertexIndex2, int vertexIndex3, Point barycentric) { results.Add(new RayMeshGeometry3DHitTestResult( CurrentVisual, CurrentModel, meshHit, pointHit, distanceToRayOrigin, vertexIndex1, vertexIndex2, vertexIndex3, barycentric)); } internal HitTestResultBehavior RaiseCallback(HitTestResultCallback resultCallback, HitTestFilterCallback filterCallback, HitTestResultBehavior lastResult) { return RaiseCallback(resultCallback, filterCallback, lastResult, 0.0 /* distance adjustment */); } internal HitTestResultBehavior RaiseCallback(HitTestResultCallback resultCallback, HitTestFilterCallback filterCallback, HitTestResultBehavior lastResult, double distanceAdjustment) { results.Sort(RayHitTestResult.CompareByDistanceToRayOrigin); for(int i = 0, count = results.Count; i < count; i++) { RayHitTestResult result = results[i]; result.SetDistanceToRayOrigin(result.DistanceToRayOrigin + distanceAdjustment); Viewport2DVisual3D viewport2DVisual3D = result.VisualHit as Viewport2DVisual3D; if (viewport2DVisual3D != null) { Point intersectionPoint; Visual viewport2DVisual3DChild = viewport2DVisual3D.Visual; if (viewport2DVisual3DChild != null) { if (Viewport2DVisual3D.GetIntersectionInfo(result, out intersectionPoint)) { // convert the resulting point to visual coordinates Point visualPoint = Viewport2DVisual3D.TextureCoordsToVisualCoords(intersectionPoint, viewport2DVisual3DChild); GeneralTransform gt = viewport2DVisual3DChild.TransformToOuterSpace().Inverse; Point pointOnChild; if (gt != null && gt.TryTransform(visualPoint, out pointOnChild)) { HitTestResultBehavior behavior2D = viewport2DVisual3DChild.HitTestPoint(filterCallback, resultCallback, new PointHitTestParameters(pointOnChild)); if (behavior2D == HitTestResultBehavior.Stop) { return HitTestResultBehavior.Stop; } } } } } HitTestResultBehavior behavior = resultCallback(results[i]); if (behavior == HitTestResultBehavior.Stop) { return HitTestResultBehavior.Stop; } } return lastResult; } // Gets the hit testing line/ray specified as an origin and direction in // the current local space. internal void GetLocalLine(out Point3D origin, out Vector3D direction) { origin = _origin; direction = _direction; bool isRay = true; if (HasWorldTransformMatrix) { LineUtil.Transform(WorldTransformMatrix, ref origin, ref direction, out isRay); } // At any point along the tree walk we may encounter a transform that turns the ray into // a line and if so we must stay a line _isRay &= isRay; } internal void ClearResults() { if (results != null) { results.Clear(); } } #endregion Internal Methods internal bool IsRay { get { return _isRay; } } //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private readonly Point3D _origin; private readonly Vector3D _direction; private readonly Listresults = new List (); // 'true' if this is a ray hit test, 'false' if the ray has become a line private bool _isRay; #endregion Private Fields } } // 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
- XmlSchemaSet.cs
- PeerOutputChannel.cs
- GradientBrush.cs
- UriSection.cs
- DBDataPermissionAttribute.cs
- Matrix.cs
- CloseSequence.cs
- WebPartConnectionsDisconnectVerb.cs
- PromptStyle.cs
- AddingNewEventArgs.cs
- Choices.cs
- CatalogPartChrome.cs
- WebPageTraceListener.cs
- CryptoHelper.cs
- StringSorter.cs
- InvalidDataContractException.cs
- ParsedAttributeCollection.cs
- WebPartConnectionsEventArgs.cs
- TraceEventCache.cs
- MemberHolder.cs
- DefaultPropertiesToSend.cs
- Utility.cs
- ScrollItemProviderWrapper.cs
- DefaultEventAttribute.cs
- TextLineResult.cs
- _FtpDataStream.cs
- PartialCachingControl.cs
- SafeNativeMethods.cs
- ValueHandle.cs
- AttachedAnnotationChangedEventArgs.cs
- WorkflowTransactionOptions.cs
- Binding.cs
- FileSystemInfo.cs
- RadialGradientBrush.cs
- ProxyHwnd.cs
- IgnoreDataMemberAttribute.cs
- MobileControlsSectionHandler.cs
- SQLInt64.cs
- TypeGeneratedEventArgs.cs
- ProcessHostServerConfig.cs
- SqlIdentifier.cs
- X509SecurityTokenProvider.cs
- SoapAttributeOverrides.cs
- PolicyConversionContext.cs
- OdbcRowUpdatingEvent.cs
- StrokeSerializer.cs
- WebPartCollection.cs
- FlowLayoutPanel.cs
- httpapplicationstate.cs
- UnmanagedMemoryStream.cs
- AsyncSerializedWorker.cs
- ColorContextHelper.cs
- TemplateContent.cs
- DataServiceQueryProvider.cs
- SetIndexBinder.cs
- ComboBoxRenderer.cs
- TraceUtility.cs
- TraceSource.cs
- XmlAttributeOverrides.cs
- ControlBuilder.cs
- TextProperties.cs
- AttributeInfo.cs
- HttpAsyncResult.cs
- ProfileSection.cs
- Int32KeyFrameCollection.cs
- ImageDrawing.cs
- EventSchemaTraceListener.cs
- SchemaMerger.cs
- WebPartVerbsEventArgs.cs
- ExternalException.cs
- Assert.cs
- TreeViewAutomationPeer.cs
- ImpersonationContext.cs
- GB18030Encoding.cs
- RecordConverter.cs
- ConfigurationConverterBase.cs
- QfeChecker.cs
- QueryExpr.cs
- AttachedAnnotationChangedEventArgs.cs
- MatrixTransform.cs
- EventLogPermissionEntryCollection.cs
- SHA1.cs
- TraceListeners.cs
- ProtectedConfigurationProviderCollection.cs
- QilFunction.cs
- BufferAllocator.cs
- Rect.cs
- DataServiceClientException.cs
- Predicate.cs
- StylusShape.cs
- BamlLocalizableResource.cs
- SQLInt16.cs
- Timeline.cs
- ScriptingScriptResourceHandlerSection.cs
- SqlConnectionManager.cs
- SqlVisitor.cs
- DiscoveryRequestHandler.cs
- SessionState.cs
- PenCursorManager.cs
- SpeechDetectedEventArgs.cs