samples/mfc/standard/Common/OCC_3dBaseDoc.cpp

   1 // OCC_3dBaseDoc.cpp: implementation of the OCC_3dBaseDoc class.
   2 //
   3 //////////////////////////////////////////////////////////////////////
   4
   5 #include <stdafx.h>
   6
   7 #include "OCC_3dBaseDoc.h"
   8
   9 #include "OCC_3dView.h"
  10 #include "OCC_App.h"
  11 #include <res\OCC_Resource.h>
  12 #include "ImportExport/ImportExport.h"
  13 #include "AISDialogs.h"
  14 #include <AIS_LocalContext.hxx>
  15 #include <AIS_ListOfInteractive.hxx>
  16 #include <AIS_ListIteratorOfListOfInteractive.hxx>
  17 #include <TColStd_ListIteratorOfListOfInteger.hxx>
  18 #include <TColStd_ListOfInteger.hxx>
  19 #include <TopoDS_Shape.hxx>
  20
  21 BEGIN_MESSAGE_MAP(OCC_3dBaseDoc, OCC_BaseDoc)
  22   //{{AFX_MSG_MAP(OCC_3dBaseDoc)
  23   ON_COMMAND(ID_FILE_IMPORT_BREP, OnFileImportBrep)
  24   ON_COMMAND(ID_FILE_EXPORT_BREP, OnFileExportBrep)
  25   ON_COMMAND(ID_OBJECT_ERASE, OnObjectErase)
  26   ON_UPDATE_COMMAND_UI(ID_OBJECT_ERASE, OnUpdateObjectErase)
  27   ON_COMMAND(ID_OBJECT_COLOR, OnObjectColor)
  28   ON_UPDATE_COMMAND_UI(ID_OBJECT_COLOR, OnUpdateObjectColor)
  29   ON_COMMAND(ID_OBJECT_SHADING, OnObjectShading)
  30   ON_UPDATE_COMMAND_UI(ID_OBJECT_SHADING, OnUpdateObjectShading)
  31   ON_COMMAND(ID_OBJECT_WIREFRAME, OnObjectWireframe)
  32   ON_UPDATE_COMMAND_UI(ID_OBJECT_WIREFRAME, OnUpdateObjectWireframe)
  33   ON_COMMAND(ID_OBJECT_TRANSPARENCY, OnObjectTransparency)
  34   ON_UPDATE_COMMAND_UI(ID_OBJECT_TRANSPARENCY, OnUpdateObjectTransparency)
  35   ON_COMMAND(ID_OBJECT_MATERIAL, OnObjectMaterial)
  36   ON_UPDATE_COMMAND_UI(ID_OBJECT_MATERIAL, OnUpdateObjectMaterial)
  37   ON_COMMAND(ID_OBJECT_DISPLAYALL, OnObjectDisplayall)
  38   ON_UPDATE_COMMAND_UI(ID_OBJECT_DISPLAYALL, OnUpdateObjectDisplayall)
  39   ON_COMMAND(ID_OBJECT_REMOVE, OnObjectRemove)
  40   ON_UPDATE_COMMAND_UI(ID_OBJECT_REMOVE, OnUpdateObjectRemove)
  41
  42   //}}AFX_MSG_MAP
  43   ON_COMMAND_EX_RANGE(ID_OBJECT_MATERIAL_BRASS,ID_OBJECT_MATERIAL_DEFAULT, OnObjectMaterialRange)
  44   ON_UPDATE_COMMAND_UI_RANGE(ID_OBJECT_MATERIAL_BRASS,ID_OBJECT_MATERIAL_DEFAULT, OnUpdateObjectMaterialRange)
  45
  46   //RayTracing
  47   ON_COMMAND(ID_OBJECT_RAY_TRACING,OnObjectRayTracing)
  48   ON_COMMAND(ID_OBJECT_SHADOWS,OnObjectShadows)
  49   ON_COMMAND(ID_OBJECT_REFLECTIONS,OnObjectReflections)
  50   ON_COMMAND(ID_OBJECT_ANTI_ALIASING,OnObjectAntiAliasing)
  51
  52   ON_UPDATE_COMMAND_UI(ID_OBJECT_RAY_TRACING, OnUpdateV3dButtons)
  53   ON_UPDATE_COMMAND_UI(ID_OBJECT_SHADOWS, OnUpdateV3dButtons)
  54   ON_UPDATE_COMMAND_UI(ID_OBJECT_REFLECTIONS, OnUpdateV3dButtons)
  55   ON_UPDATE_COMMAND_UI(ID_OBJECT_ANTI_ALIASING, OnUpdateV3dButtons)
  56 END_MESSAGE_MAP()
  57
  58
  59 //////////////////////////////////////////////////////////////////////
  60 // Construction/Destruction
  61 //////////////////////////////////////////////////////////////////////
  62
  63 OCC_3dBaseDoc::OCC_3dBaseDoc()
  64 :myPopupMenuNumber(0)
  65 {
  66   AfxInitRichEdit();
  67
  68   Handle(Graphic3d_GraphicDriver) aGraphicDriver = ((OCC_App*)AfxGetApp())->GetGraphicDriver();
  69
  70   myViewer = new V3d_Viewer (aGraphicDriver, Standard_ExtString("Visu3D") );
  71   myViewer->SetDefaultLights();
  72   myViewer->SetLightOn();
  73   myAISContext = new AIS_InteractiveContext (myViewer);
  74
  75   myRayTracingIsOn            = false;
  76   myRaytracedShadowsIsOn      = true;
  77   myRaytracedReflectionsIsOn  = false;
  78   myRaytracedAntialiasingIsOn = false;
  79 }
  80
  81 OCC_3dBaseDoc::~OCC_3dBaseDoc()
  82 {
  83 }
  84
  85 //-----------------------------------------------------------------------------------------
  86 //
  87 //-----------------------------------------------------------------------------------------
  88 void OCC_3dBaseDoc::DragEvent (const Standard_Integer theMouseX,
  89                                const Standard_Integer theMouseY,
  90                                const Standard_Integer theState,
  91                                const Handle(V3d_View)& theView)
  92 {
  93   // TheState == -1  button down
  94   // TheState ==  0  move
  95   // TheState ==  1  button up
  96
  97   static Standard_Integer aStartDragX = 0;
  98   static Standard_Integer aStartDragY = 0;
  99
 100   switch (theState)
 101   {
 102   case -1:
 103     {
 104       aStartDragX = theMouseX;
 105       aStartDragY = theMouseY;
 106       break;
 107     }
 108   case 0:
 109     {
 110       myAISContext->UpdateCurrentViewer();
 111       break;
 112     }
 113   case 1:
 114     {
 115       myAISContext->Select (aStartDragX, aStartDragY,
 116                             theMouseX, theMouseY,
 117                             theView);
 118       break;
 119     }
 120   };
 121 }
 122
 123 //-----------------------------------------------------------------------------------------
 124 //
 125 //-----------------------------------------------------------------------------------------
 126 void OCC_3dBaseDoc::InputEvent (const Standard_Integer theMouseX,
 127                                 const Standard_Integer theMouseY,
 128                                 const Handle(V3d_View)& theView)
 129 {
 130   myAISContext->MoveTo (theMouseX, theMouseY, theView);
 131   myAISContext->Select();
 132 }
 133
 134 //-----------------------------------------------------------------------------------------
 135 //
 136 //-----------------------------------------------------------------------------------------
 137 void OCC_3dBaseDoc::MoveEvent (const Standard_Integer theMouseX,
 138                                const Standard_Integer theMouseY,
 139                                const Handle(V3d_View)& theView)
 140 {
 141   myAISContext->MoveTo (theMouseX, theMouseY, theView);
 142 }
 143
 144 //-----------------------------------------------------------------------------------------
 145 //
 146 //-----------------------------------------------------------------------------------------
 147 void OCC_3dBaseDoc::ShiftMoveEvent (const Standard_Integer theMouseX,
 148                                     const Standard_Integer theMouseY,
 149                                     const Handle(V3d_View)& theView)
 150 {
 151   myAISContext->MoveTo (theMouseX, theMouseY, theView);
 152 }
 153
 154 //-----------------------------------------------------------------------------------------
 155 //
 156 //-----------------------------------------------------------------------------------------
 157 void OCC_3dBaseDoc::ShiftDragEvent (const Standard_Integer theMouseX,
 158                                     const Standard_Integer theMouseY,
 159                                     const Standard_Integer theState,
 160                                     const Handle(V3d_View)& theView)
 161 {
 162   // TheState == -1  button down
 163   // TheState ==  0  move
 164   // TheState ==  1  button up
 165
 166   static Standard_Integer aStartDragX = 0;
 167   static Standard_Integer aStartDragY = 0;
 168
 169   if (theState == -1)
 170   {
 171     // button down
 172     aStartDragX = theMouseX;
 173     aStartDragY = theMouseY;
 174   }
 175
 176   if (theState == 0)
 177   {
 178     // button up
 179     myAISContext->ShiftSelect (aStartDragX, aStartDragY,
 180                                theMouseX, theMouseY,
 181                                theView);
 182   }
 183 }
 184
 185 //-----------------------------------------------------------------------------------------
 186 //
 187 //-----------------------------------------------------------------------------------------
 188 void OCC_3dBaseDoc::ShiftInputEvent (const Standard_Integer /*theMouseX*/,
 189                                      const Standard_Integer /*theMouseY*/,
 190                                      const Handle(V3d_View)& /*theView*/)
 191 {
 192   myAISContext->ShiftSelect();
 193 }
 194
 195 //-----------------------------------------------------------------------------------------
 196 //
 197 //-----------------------------------------------------------------------------------------
 198 void  OCC_3dBaseDoc::Popup (const Standard_Integer theMouseX,
 199                             const Standard_Integer theMouseY,
 200                             const Handle(V3d_View)& theView)
 201 {
 202   // Base check which context menu to call
 203   if (!myPopupMenuNumber)
 204   {
 205     myAISContext->InitCurrent();
 206     if (myAISContext->MoreCurrent())
 207       myPopupMenuNumber=1;
 208   }
 209
 210   CMenu menu;
 211   VERIFY(menu.LoadMenu(IDR_Popup3D));
 212   CMenu* pPopup = menu.GetSubMenu(myPopupMenuNumber);
 213
 214   ASSERT(pPopup != NULL);
 215    if (myPopupMenuNumber == 1) // more than 1 object.
 216   {
 217     bool OneOrMoreInShading = false;
 218         for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 219     if (myAISContext->IsDisplayed(myAISContext->Current(),1)) OneOrMoreInShading=true;
 220         if(!OneOrMoreInShading)
 221         pPopup->EnableMenuItem(5, MF_BYPOSITION | MF_DISABLED | MF_GRAYED);
 222    }
 223
 224   POINT winCoord = { theMouseX , theMouseY };
 225   Handle(WNT_Window) aWNTWindow=
 226   Handle(WNT_Window)::DownCast(theView->Window());
 227   ClientToScreen ( (HWND)(aWNTWindow->HWindow()),&winCoord);
 228   pPopup->TrackPopupMenu (TPM_LEFTALIGN | TPM_RIGHTBUTTON,
 229                           winCoord.x,
 230                           winCoord.y,
 231                           AfxGetMainWnd());
 232 }
 233
 234 void OCC_3dBaseDoc::Fit()
 235 {
 236         CMDIFrameWnd *pFrame =  (CMDIFrameWnd*)AfxGetApp()->m_pMainWnd;
 237         CMDIChildWnd *pChild =  (CMDIChildWnd *) pFrame->GetActiveFrame();
 238         OCC_3dView *pView = (OCC_3dView *) pChild->GetActiveView();
 239         pView->FitAll();
 240 }
 241
 242 int OCC_3dBaseDoc::OnFileImportBrep_WithInitDir (const wchar_t* )
 243 {
 244   if (CImportExport::ReadBREP (myAISContext) == 1)
 245     return 1;
 246   Fit();
 247   return 0;
 248 }
 249
 250 void OCC_3dBaseDoc::OnFileImportBrep()
 251 {
 252   OnFileImportBrep_WithInitDir (NULL);
 253 }
 254
 255 void OCC_3dBaseDoc::OnFileExportBrep()
 256 {   CImportExport::SaveBREP(myAISContext);}
 257
 258 void OCC_3dBaseDoc::OnObjectColor()
 259 {
 260         Handle(AIS_InteractiveObject) Current ;
 261         COLORREF MSColor ;
 262         Quantity_Color CSFColor ;
 263
 264         myAISContext->InitCurrent();
 265     Current = myAISContext->Current();
 266         if ( Current->HasColor () ) {
 267       CSFColor = myAISContext->Color(myAISContext->Current());
 268       MSColor = RGB (CSFColor.Red()*255.,CSFColor.Green()*255.,CSFColor.Blue()*255.);
 269         }
 270         else {
 271           MSColor = RGB (255,255,255) ;
 272         }
 273
 274         CColorDialog dlgColor(MSColor);
 275         if (dlgColor.DoModal() == IDOK)
 276         {
 277           MSColor = dlgColor.GetColor();
 278           CSFColor = Quantity_Color (GetRValue(MSColor)/255.,GetGValue(MSColor)/255.,
 279                                                          GetBValue(MSColor)/255.,Quantity_TOC_RGB);
 280           for (;myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 281           myAISContext->SetColor (myAISContext->Current(),CSFColor.Name());
 282         }
 283 }
 284 void OCC_3dBaseDoc::OnUpdateObjectColor(CCmdUI* pCmdUI)
 285 {
 286   bool OneOrMoreIsShadingOrWireframe = false;
 287   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 288     if (myAISContext->IsDisplayed(myAISContext->Current(),0)
 289                 ||myAISContext->IsDisplayed(myAISContext->Current(),1))
 290                 OneOrMoreIsShadingOrWireframe=true;
 291   pCmdUI->Enable (OneOrMoreIsShadingOrWireframe);
 292 }
 293
 294 void OCC_3dBaseDoc::OnObjectErase()
 295 {
 296   myAISContext->EraseSelected();
 297   myAISContext->ClearCurrents();
 298 }
 299 void OCC_3dBaseDoc::OnUpdateObjectErase(CCmdUI* pCmdUI)
 300 {
 301   bool OneOrMoreIsDisplayed = false;
 302   for (myAISContext->InitCurrent(); myAISContext->MoreCurrent(); myAISContext->NextCurrent())
 303   {
 304     if (myAISContext->IsDisplayed (myAISContext->Current()))
 305       OneOrMoreIsDisplayed = true;
 306   }
 307   pCmdUI->Enable (OneOrMoreIsDisplayed);
 308 }
 309
 310 void OCC_3dBaseDoc::OnObjectWireframe()
 311 {
 312   for(myAISContext->InitCurrent();myAISContext->MoreCurrent();myAISContext->NextCurrent())
 313         myAISContext->SetDisplayMode(myAISContext->Current(),0);
 314 }
 315 void OCC_3dBaseDoc::OnUpdateObjectWireframe(CCmdUI* pCmdUI)
 316 {
 317   bool OneOrMoreInShading = false;
 318   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 319     if (myAISContext->IsDisplayed(myAISContext->Current(),1)) OneOrMoreInShading=true;
 320         pCmdUI->Enable (OneOrMoreInShading);
 321 }
 322
 323 void OCC_3dBaseDoc::OnObjectShading()
 324 {
 325   for(myAISContext->InitCurrent();myAISContext->MoreCurrent();myAISContext->NextCurrent())
 326       myAISContext->SetDisplayMode(myAISContext->Current(),1);
 327 }
 328
 329 void OCC_3dBaseDoc::OnUpdateObjectShading(CCmdUI* pCmdUI)
 330 {
 331   bool OneOrMoreInWireframe = false;
 332   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 333     if (myAISContext->IsDisplayed(myAISContext->Current(),0)) OneOrMoreInWireframe=true;
 334         pCmdUI->Enable (OneOrMoreInWireframe);
 335 }
 336
 337 void OCC_3dBaseDoc::OnObjectMaterial()
 338 {
 339   CDialogMaterial DialBox(myAISContext);
 340   DialBox.DoModal();
 341   //CMDIFrameWnd *pFrame =  (CMDIFrameWnd*)AfxGetApp()->m_pMainWnd;
 342   //CMDIChildWnd *pChild =  (CMDIChildWnd *) pFrame->GetActiveFrame();
 343   //OCC_3dView *pView = (OCC_3dView *) pChild->GetActiveView();
 344 }
 345
 346 void OCC_3dBaseDoc::OnUpdateObjectMaterial(CCmdUI* pCmdUI)
 347 {
 348   bool OneOrMoreInShading = false;
 349   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 350     if (myAISContext->IsDisplayed(myAISContext->Current(),1)) OneOrMoreInShading=true;
 351         pCmdUI->Enable (OneOrMoreInShading);
 352 }
 353
 354 BOOL OCC_3dBaseDoc::OnObjectMaterialRange(UINT nID)
 355 {
 356   // the range ID_OBJECT_MATERIAL_BRASS to ID_OBJECT_MATERIAL_SILVER is
 357   // continue with the same values as enumeration Type Of Material
 358   Standard_Real aTransparency;
 359
 360   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ()){
 361         aTransparency = myAISContext->Current()->Transparency();
 362         myAISContext->SetMaterial (myAISContext->Current(),(Graphic3d_NameOfMaterial)(nID-ID_OBJECT_MATERIAL_BRASS));
 363         myAISContext->SetTransparency (myAISContext->Current(),aTransparency);
 364   }
 365   return true;
 366
 367 }
 368
 369 void OCC_3dBaseDoc::OnUpdateObjectMaterialRange(CCmdUI* pCmdUI)
 370 {
 371   bool OneOrMoreInShading = false;
 372   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 373     if (myAISContext->IsDisplayed(myAISContext->Current(),1)) OneOrMoreInShading=true;
 374         pCmdUI->Enable (OneOrMoreInShading);
 375   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 376     if (myAISContext->Current()->Material() - (pCmdUI->m_nID - ID_OBJECT_MATERIAL_BRASS) == 0)
 377                 pCmdUI->SetCheck(1);
 378 }
 379
 380
 381 void OCC_3dBaseDoc::OnObjectTransparency()
 382 {
 383         CDialogTransparency DialBox(myAISContext);
 384         DialBox.DoModal();
 385         //CMDIFrameWnd *pFrame =  (CMDIFrameWnd*)AfxGetApp()->m_pMainWnd;
 386         //CMDIChildWnd *pChild =  (CMDIChildWnd *) pFrame->GetActiveFrame();
 387         //OCC_3dView *pView = (OCC_3dView *) pChild->GetActiveView();
 388 //      pView->Redraw();
 389 }
 390
 391 void OCC_3dBaseDoc::OnUpdateObjectTransparency(CCmdUI* pCmdUI)
 392 {
 393   bool OneOrMoreInShading = false;
 394   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 395     if (myAISContext->IsDisplayed(myAISContext->Current(),1)) OneOrMoreInShading=true;
 396         pCmdUI->Enable (OneOrMoreInShading);
 397 }
 398
 399
 400 void OCC_3dBaseDoc::OnObjectDisplayall()
 401 {
 402         myAISContext->DisplayAll();
 403 }
 404
 405 void OCC_3dBaseDoc::OnUpdateObjectDisplayall(CCmdUI* pCmdUI)
 406 {
 407
 408         AIS_ListOfInteractive aList;
 409         myAISContext->ObjectsInside(aList,AIS_KOI_Shape);
 410         AIS_ListIteratorOfListOfInteractive aLI;
 411         Standard_Boolean IS_ANY_OBJECT_ERASED=FALSE;
 412         for (aLI.Initialize(aList);aLI.More();aLI.Next()){
 413                 if(!myAISContext->IsDisplayed(aLI.Value()))
 414                 IS_ANY_OBJECT_ERASED=TRUE;
 415         }
 416         pCmdUI->Enable (IS_ANY_OBJECT_ERASED);
 417
 418 }
 419
 420 void OCC_3dBaseDoc::OnObjectRemove()
 421 {
 422         for(myAISContext->InitCurrent();myAISContext->MoreCurrent();myAISContext->InitCurrent())
 423         myAISContext->Remove(myAISContext->Current(),Standard_True);
 424 }
 425
 426 void OCC_3dBaseDoc::OnUpdateObjectRemove(CCmdUI* pCmdUI)
 427 {
 428   bool OneOrMoreIsDisplayed = false;
 429   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 430     if (myAISContext->IsDisplayed(myAISContext->Current())) OneOrMoreIsDisplayed=true;
 431   pCmdUI->Enable (OneOrMoreIsDisplayed);
 432 }
 433
 434 void OCC_3dBaseDoc::SetMaterial(Graphic3d_NameOfMaterial Material)
 435 {
 436   for (myAISContext->InitCurrent();myAISContext->MoreCurrent ();myAISContext->NextCurrent ())
 437     myAISContext->SetMaterial (myAISContext->Current(),
 438     (Graphic3d_NameOfMaterial)(Material));
 439 }
 440
 441
 442 // RayTracing
 443 void OCC_3dBaseDoc::OnObjectRayTracing()
 444 {
 445   myRayTracingIsOn = !myRayTracingIsOn;
 446   if(!myRayTracingIsOn)
 447   {
 448     myRaytracedShadowsIsOn = false;
 449     myRaytracedReflectionsIsOn = false;
 450     myRaytracedAntialiasingIsOn = false;
 451   }
 452   OnObjectRayTracingAction();
 453 }
 454 // Shadows
 455 void OCC_3dBaseDoc::OnObjectShadows()
 456 {
 457   myRaytracedShadowsIsOn = !myRaytracedShadowsIsOn;
 458   OnObjectRayTracingAction();
 459 }
 460 // Reflections
 461 void OCC_3dBaseDoc::OnObjectReflections()
 462 {
 463   myRaytracedReflectionsIsOn = !myRaytracedReflectionsIsOn;
 464   OnObjectRayTracingAction();
 465 }
 466 // Anti-aliasing
 467 void OCC_3dBaseDoc::OnObjectAntiAliasing()
 468 {
 469   myRaytracedAntialiasingIsOn = !myRaytracedAntialiasingIsOn;
 470   OnObjectRayTracingAction();
 471 }
 472 void OCC_3dBaseDoc::OnUpdateV3dButtons (CCmdUI* pCmdUI)
 473 {
 474   if (pCmdUI->m_nID == ID_OBJECT_RAY_TRACING)
 475   {
 476     pCmdUI->SetCheck(myRayTracingIsOn);
 477   } else {
 478     pCmdUI->Enable(myRayTracingIsOn);
 479     if (pCmdUI->m_nID == ID_OBJECT_SHADOWS)
 480       pCmdUI->SetCheck(myRaytracedShadowsIsOn);
 481     if (pCmdUI->m_nID == ID_OBJECT_REFLECTIONS)
 482       pCmdUI->SetCheck(myRaytracedReflectionsIsOn);
 483     if (pCmdUI->m_nID == ID_OBJECT_ANTI_ALIASING)
 484       pCmdUI->SetCheck(myRaytracedAntialiasingIsOn);
 485   }
 486 }
 487 // Common function to change raytracing params and redraw view
 488 void OCC_3dBaseDoc::OnObjectRayTracingAction()
 489 {
 490   myAISContext->CurrentViewer()->InitActiveViews();
 491   Handle(V3d_View) aView = myAISContext->CurrentViewer()->ActiveView();
 492   Graphic3d_RenderingParams& aParams = aView->ChangeRenderingParams();
 493   if (myRayTracingIsOn)
 494     aParams.Method = Graphic3d_RM_RAYTRACING;
 495   else
 496     aParams.Method = Graphic3d_RM_RASTERIZATION;
 497   aParams.IsShadowEnabled = myRaytracedShadowsIsOn;
 498   aParams.IsReflectionEnabled = myRaytracedReflectionsIsOn;
 499   aParams.IsAntialiasingEnabled = myRaytracedAntialiasingIsOn;
 500   myAISContext->UpdateCurrentViewer();
 501 }