vv/vvSlicer.cxx

   1 /*=========================================================================
   2   Program:   vv                     http://www.creatis.insa-lyon.fr/rio/vv
   3
   4   Authors belong to:
   5   - University of LYON              http://www.universite-lyon.fr/
   6   - Léon Bérard cancer center       http://oncora1.lyon.fnclcc.fr
   7   - CREATIS CNRS laboratory         http://www.creatis.insa-lyon.fr
   8
   9   This software is distributed WITHOUT ANY WARRANTY; without even
  10   the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  11   PURPOSE.  See the copyright notices for more information.
  12
  13   It is distributed under dual licence
  14
  15   - BSD        See included LICENSE.txt file
  16   - CeCILL-B   http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
  17   ======================================================================-====*/
  18
  19 #include "vvSlicer.h"
  20 #include "vvImage.h"
  21 #include "vvSlicerManagerCommand.h"
  22 #include "vvGlyphSource.h"
  23 #include "vvGlyph2D.h"
  24 #include "vvImageMapToWLColors.h"
  25
  26 #include <vtkTextProperty.h>
  27 #include <vtkTextActor.h>
  28 #include <vtkTextSource.h>
  29 #include <vtkActor2D.h>
  30 #include <vtkCursor2D.h>
  31 #include <vtkPolyDataMapper2D.h>
  32 #include <vtkProperty2D.h>
  33 #include <vtkCornerAnnotation.h>
  34 #include <vtkImageMapToWindowLevelColors.h>
  35 #include <vtkImageData.h>
  36 #include <vtkImageActor.h>
  37 #include <vvBlendImageActor.h>
  38 #include <vtkToolkits.h>
  39 #include <vtkObjectFactory.h>
  40 #include <vtkPointData.h>
  41 #include <vtkDataArray.h>
  42 #include <vtkFloatArray.h>
  43 #include <vtkClipPolyData.h>
  44 #include <vtkGlyph3D.h>
  45 #include <vtkMath.h>
  46 #include <vtkCursor3D.h>
  47 #include <vtkProperty.h>
  48 #include <vtkLight.h>
  49 #include <vtkLightCollection.h>
  50 #include <vtkScalarBarActor.h>
  51 #include <vtkLookupTable.h>
  52
  53 #include <vtkRenderer.h>
  54 #include <vtkRendererCollection.h>
  55 #include <vtkRenderWindow.h>
  56 #include <vtkRenderWindowInteractor.h>
  57 #include <vtkCamera.h>
  58 #include <vtkCallbackCommand.h>
  59 #include <vtkCommand.h>
  60 #include <vtkPolyDataMapper.h>
  61 #include <vtkBox.h>
  62
  63 #include <vtkExtractVOI.h>
  64 #include <vtkSphereSource.h>
  65 #include <vtkCutter.h>
  66 #include <vtkAssignAttribute.h>
  67 #include <vtkImageAccumulate.h>
  68 #include <vtkImageReslice.h>
  69
  70 vtkCxxRevisionMacro(vvSlicer, "DummyRevision");
  71 vtkStandardNewMacro(vvSlicer);
  72
  73 //------------------------------------------------------------------------------
  74 vvSlicer::vvSlicer()
  75 {
  76   this->UnInstallPipeline();
  77   mImage = NULL;
  78   mCurrentTSlice = 0;
  79   mUseReducedExtent = false;
  80
  81   mCurrent[0] = -VTK_DOUBLE_MAX;
  82   mCurrent[1] = -VTK_DOUBLE_MAX;
  83   mCurrent[2] = -VTK_DOUBLE_MAX;
  84
  85   mCursor[0] = -VTK_DOUBLE_MAX;
  86   mCursor[1] = -VTK_DOUBLE_MAX;
  87   mCursor[2] = -VTK_DOUBLE_MAX;
  88   mCursor[3] = -VTK_DOUBLE_MAX;
  89
  90   mSubSampling = 5;
  91   mScale = 1;
  92   mVFLog = 0;
  93   mVFWidth = 1;
  94   mVFColor[0] = 0;
  95   mVFColor[1] = 1;
  96   mVFColor[2] = 0;
  97
  98   std::string text = "F1 = sagital; F2 = coronal; F3 = axial\n";
  99   text += "F5 = horizontal flip; F6 = vertical flip\n\n";
 100   text += "0,1,2,3,4,5 : preset windowing\n";
 101   text += "6,7,8,9 : preset colormap\n";
 102   text += "z : local windowing\n";
 103   text += "r : reset view\n";
 104   text += "l : reload image\n";
 105   text += "f : fly to mouse position\n";
 106   text += "g : go to cross hair position\n\n";
 107   text += "Up,down : change slice\n";
 108   text += "Left,right : change tenporal slice\n\n";
 109   text += "Scrollbar (or w/x) : zoom in/out\n";
 110   text += "left button : synchronize all views\n";
 111   text += "middle button : grab image\n";
 112   text += "right button : change windowing\n";
 113
 114   crossCursor = vtkSmartPointer<vtkCursor2D>::New();
 115   crossCursor->AllOff();
 116   crossCursor->AxesOn();
 117   crossCursor->SetTranslationMode(1);
 118   crossCursor->SetRadius(2);
 119
 120   pdm = vtkSmartPointer<vtkPolyDataMapper2D>::New();
 121   pdm->SetInput(crossCursor->GetOutput());
 122
 123   pdmA = vtkSmartPointer<vtkActor2D>::New();
 124   pdmA->SetMapper(pdm);
 125   pdmA->GetProperty()->SetColor(255,10,212);
 126   pdmA->SetVisibility(0);
 127   pdmA->SetPickable(0);
 128
 129   ca = vtkSmartPointer<vtkCornerAnnotation>::New();
 130   ca->GetTextProperty()->SetColor(255,10,212);
 131   ca->SetVisibility(1);
 132   mFileName = "";
 133
 134   mVF = NULL;
 135   mOverlay = NULL;
 136   mFusion = NULL;
 137   mLandmarks = NULL;
 138
 139   legend = vtkSmartPointer<vtkScalarBarActor>::New();
 140   //legend->SetTitle("test!");
 141   legend->SetPosition(0.82,0.18);
 142   legend->SetWidth(0.1);
 143   legend->SetVisibility(0);
 144   legend->SetLabelFormat("%.1f");
 145   this->GetRenderer()->AddActor(legend);
 146
 147   this->WindowLevel->Delete();
 148   this->WindowLevel = vvImageMapToWLColors::New();
 149
 150   this->InstallPipeline();
 151 }
 152 //------------------------------------------------------------------------------
 153
 154
 155 //------------------------------------------------------------------------------
 156 vtkImageMapToWindowLevelColors* vvSlicer::GetOverlayMapper()
 157 {
 158   return mOverlayMapper.GetPointer();
 159 }
 160 //------------------------------------------------------------------------------
 161
 162
 163 //------------------------------------------------------------------------------
 164 vvBlendImageActor* vvSlicer::GetOverlayActor()
 165 {
 166   return mOverlayActor.GetPointer();
 167 }
 168 //------------------------------------------------------------------------------
 169
 170
 171 //------------------------------------------------------------------------------
 172 vtkImageMapToWindowLevelColors* vvSlicer::GetFusionMapper()
 173 {
 174   return mFusionMapper.GetPointer();
 175 }
 176 //------------------------------------------------------------------------------
 177
 178
 179 //------------------------------------------------------------------------------
 180 vtkImageActor* vvSlicer::GetFusionActor()
 181 {
 182   return mFusionActor.GetPointer();
 183 }
 184 //------------------------------------------------------------------------------
 185
 186
 187 //------------------------------------------------------------------------------
 188 vtkActor* vvSlicer::GetVFActor()
 189 {
 190   return mVFActor.GetPointer();
 191 }
 192 //------------------------------------------------------------------------------
 193
 194
 195 //------------------------------------------------------------------------------
 196 vtkCornerAnnotation* vvSlicer::GetAnnotation()
 197 {
 198   return ca.GetPointer();
 199 }
 200 //------------------------------------------------------------------------------
 201
 202
 203 //------------------------------------------------------------------------------
 204 void vvSlicer::EnableReducedExtent(bool b)
 205 {
 206   mUseReducedExtent = b;
 207 }
 208 //------------------------------------------------------------------------------
 209
 210
 211 //------------------------------------------------------------------------------
 212 void vvSlicer::SetReducedExtent(int * ext)
 213 {
 214   mReducedExtent = ext;
 215 }
 216 //------------------------------------------------------------------------------
 217
 218
 219 //------------------------------------------------------------------------------
 220 void vvSlicer::AddContour(vvMesh::Pointer contour,bool propagate)
 221 {
 222
 223   mSurfaceCutActors.push_back(new vvMeshActor());
 224   if (propagate)
 225     mSurfaceCutActors.back()->Init(contour,mCurrentTSlice,mVF);
 226   else
 227     mSurfaceCutActors.back()->Init(contour,mCurrentTSlice);
 228   mSurfaceCutActors.back()->SetSlicingOrientation(SliceOrientation);
 229   this->GetRenderer()->AddActor(mSurfaceCutActors.back()->GetActor());
 230
 231   SetContourSlice();
 232 }
 233 //------------------------------------------------------------------------------
 234
 235
 236 //------------------------------------------------------------------------------
 237 void vvSlicer::ToggleContourSuperposition()
 238 {
 239   for (std::vector<vvMeshActor*>::iterator i=mSurfaceCutActors.begin();
 240        i!=mSurfaceCutActors.end(); i++)
 241     (*i)->ToggleSuperposition();
 242 }
 243 //------------------------------------------------------------------------------
 244
 245
 246 //------------------------------------------------------------------------------
 247 void vvSlicer::SetCursorColor(int r,int g, int b)
 248 {
 249   pdmA->GetProperty()->SetColor(r,g,b);
 250 }
 251 //------------------------------------------------------------------------------
 252
 253
 254 //------------------------------------------------------------------------------
 255 void vvSlicer::SetCursorVisibility(bool s)
 256 {
 257   pdmA->SetVisibility(s);
 258 }
 259 //------------------------------------------------------------------------------
 260
 261
 262 //------------------------------------------------------------------------------
 263 bool vvSlicer::GetCursorVisibility()
 264 {
 265   return pdmA->GetVisibility();
 266 }
 267 //------------------------------------------------------------------------------
 268
 269
 270 //------------------------------------------------------------------------------
 271 void vvSlicer::SetCornerAnnotationVisibility(bool s)
 272 {
 273   ca->SetVisibility(s);
 274 }
 275 //------------------------------------------------------------------------------
 276
 277
 278 //------------------------------------------------------------------------------
 279 bool vvSlicer::GetCornerAnnotationVisibility()
 280 {
 281   return ca->GetVisibility();
 282 }
 283 //------------------------------------------------------------------------------
 284
 285
 286 //------------------------------------------------------------------------------
 287 vvSlicer::~vvSlicer()
 288 {
 289   for (std::vector<vvMeshActor*>::iterator i=mSurfaceCutActors.begin();
 290        i!=mSurfaceCutActors.end(); i++)
 291     delete (*i);
 292 }
 293 //------------------------------------------------------------------------------
 294
 295
 296 //------------------------------------------------------------------------------
 297 void vvSlicer::SetCurrentPosition(double x, double y, double z, int t)
 298 {
 299   mCurrent[0] = x;
 300   mCurrent[1] = y;
 301   mCurrent[2] = z;
 302   mCurrentTSlice = t;
 303 }
 304 //------------------------------------------------------------------------------
 305
 306
 307 //------------------------------------------------------------------------------
 308 void vvSlicer::SetImage(vvImage::Pointer image)
 309 {
 310   if (image->GetVTKImages().size()) {
 311     mImage = image;
 312     this->Superclass::SetInput(image->GetTransformedVTKImages()[0]);
 313
 314     int extent[6];
 315     this->GetInput()->GetWholeExtent(extent);
 316
 317     // Prevent crash when reload -> change slice if outside extent
 318     if (Slice < extent[SliceOrientation*2] || Slice>=extent[SliceOrientation*2+1]) {
 319       Slice = (extent[SliceOrientation*2+1]-extent[SliceOrientation*2])/2.0;
 320     }
 321
 322     // Make sure that the required part image has been computed
 323     extent[SliceOrientation*2] = Slice;
 324     extent[SliceOrientation*2+1] = Slice;
 325     image->GetTransformedVTKImages()[0]->SetUpdateExtent(extent);
 326     image->GetTransformedVTKImages()[0]->Update();
 327
 328     this->UpdateDisplayExtent();
 329
 330     mCurrentTSlice = 0;
 331     ca->SetText(0,mFileName.c_str());
 332   }
 333 }
 334 //------------------------------------------------------------------------------
 335
 336
 337 //------------------------------------------------------------------------------
 338 void vvSlicer::SetOverlay(vvImage::Pointer overlay)
 339 {
 340   if (overlay->GetVTKImages().size()) {
 341     mOverlay = overlay;
 342
 343     if (!mOverlayMapper)
 344       mOverlayMapper = vtkSmartPointer<vtkImageMapToWindowLevelColors>::New();
 345     mOverlayMapper->SetInput(overlay->GetTransformedVTKImages()[0]);
 346
 347     if (!mOverlayActor) {
 348       mOverlayActor = vtkSmartPointer<vvBlendImageActor>::New();
 349       mOverlayActor->SetInput(mOverlayMapper->GetOutput());
 350       mOverlayActor->SetPickable(0);
 351       mOverlayActor->SetVisibility(false);
 352       mOverlayActor->SetOpacity(0.5);
 353       this->UpdateDisplayExtent();
 354     }
 355
 356     //stupid but necessary : the Overlay need to be rendered before fusion
 357     if (mFusionActor) {
 358       this->GetRenderer()->RemoveActor(mFusionActor);
 359       this->GetRenderer()->AddActor(mOverlayActor);
 360       this->GetRenderer()->AddActor(mFusionActor);
 361     } else
 362       this->GetRenderer()->AddActor(mOverlayActor);
 363
 364     //Synchronize slice
 365     SetTSlice(mCurrentTSlice);
 366   }
 367 }
 368 //------------------------------------------------------------------------------
 369
 370
 371 //------------------------------------------------------------------------------
 372 void vvSlicer::SetFusion(vvImage::Pointer fusion)
 373 {
 374   if (fusion->GetVTKImages().size()) {
 375     mFusion = fusion;
 376
 377     if (!mFusionMapper)
 378       mFusionMapper = vtkSmartPointer<vtkImageMapToWindowLevelColors>::New();
 379     mFusionMapper->SetInput(fusion->GetTransformedVTKImages()[0]);
 380
 381     if (!mFusionActor) {
 382       mFusionActor = vtkSmartPointer<vtkImageActor>::New();
 383       mFusionActor->SetInput(mFusionMapper->GetOutput());
 384       mFusionActor->SetPickable(0);
 385       mFusionActor->SetVisibility(false);
 386       mFusionActor->SetOpacity(0.7);
 387       this->UpdateDisplayExtent();
 388       this->GetRenderer()->AddActor(mFusionActor);
 389     }
 390
 391     //Synchronize slice
 392     SetTSlice(mCurrentTSlice);
 393   }
 394 }
 395 //------------------------------------------------------------------------------
 396
 397
 398 //------------------------------------------------------------------------------
 399 void vvSlicer::SetActorVisibility(const std::string& actor_type, int overlay_index ,bool vis)
 400 {
 401   if (actor_type == "vector") {
 402     this->mVFActor->SetVisibility(vis);
 403   }
 404   if (actor_type == "overlay") {
 405     this->mOverlayActor->SetVisibility(vis);
 406   }
 407   if (actor_type == "fusion") {
 408     this->mFusionActor->SetVisibility(vis);
 409   }
 410   if (actor_type == "contour")
 411     this->mSurfaceCutActors[overlay_index]->GetActor()->SetVisibility(vis);
 412   UpdateDisplayExtent();
 413 }
 414 //------------------------------------------------------------------------------
 415
 416
 417 //------------------------------------------------------------------------------
 418 void vvSlicer::SetVF(vvImage::Pointer vf)
 419 {
 420   if (vf->GetVTKImages().size()) {
 421     mVF = vf;
 422
 423     if (!mAAFilter) {
 424       mAAFilter= vtkSmartPointer<vtkAssignAttribute>::New();
 425       mVOIFilter = vtkSmartPointer<vtkExtractVOI>::New();
 426       mVOIFilter->SetSampleRate(mSubSampling,mSubSampling,mSubSampling);
 427     }
 428     mVOIFilter->SetInput(vf->GetTransformedVTKImages()[0]);
 429     mAAFilter->SetInput(mVOIFilter->GetOutput());
 430     ///This tells VTK to use the scalar (pixel) data of the image to draw the little arrows
 431     mAAFilter->Assign(vtkDataSetAttributes::SCALARS, vtkDataSetAttributes::VECTORS, vtkAssignAttribute::POINT_DATA);
 432
 433     if (!mArrow)
 434       mArrow = vtkSmartPointer<vvGlyphSource>::New();
 435     mArrow->SetGlyphTypeToSpecificArrow();
 436     mArrow->SetScale(mScale);
 437     mArrow->FilledOff();
 438
 439     // Glyph the gradient vector (with arrows)
 440     if (!mGlyphFilter)
 441       mGlyphFilter = vtkSmartPointer<vvGlyph2D>::New();
 442     mGlyphFilter->SetInput(mAAFilter->GetOutput());
 443     mGlyphFilter->SetSource(mArrow->GetOutput());
 444     mGlyphFilter->ScalingOn();
 445     mGlyphFilter->SetScaleModeToScaleByVector();
 446     mGlyphFilter->OrientOn();
 447     mGlyphFilter->SetVectorModeToUseVector();
 448     mGlyphFilter->SetColorModeToColorByVector();
 449
 450     if (!mVFColorLUT)
 451       mVFColorLUT = vtkSmartPointer<vtkLookupTable>::New();
 452
 453     double mVFColorHSV[3];
 454     vtkMath::RGBToHSV(mVFColor, mVFColorHSV);
 455     mVFColorLUT->SetHueRange(mVFColorHSV[0], mVFColorHSV[0]);
 456     mVFColorLUT->SetSaturationRange(mVFColorHSV[1],mVFColorHSV[1]);
 457     mVFColorLUT->SetValueRange(mVFColorHSV[2], mVFColorHSV[2]);
 458
 459     if (!mVFMapper)
 460       mVFMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
 461     mVFMapper->SetInput(mGlyphFilter->GetOutput());
 462     mVFMapper->ImmediateModeRenderingOn();
 463     mVFMapper->SetLookupTable(mVFColorLUT);
 464
 465     if (!mVFActor)
 466       mVFActor = vtkSmartPointer<vtkActor>::New();
 467     mVFActor->SetMapper(mVFMapper);
 468     mVFActor->SetPickable(0);
 469     mVFActor->GetProperty()->SetLineWidth(mVFWidth);
 470     this->UpdateDisplayExtent();
 471     this->GetRenderer()->AddActor(mVFActor);
 472
 473     //Synchronize slice
 474     SetTSlice(mCurrentTSlice);
 475   }
 476 }
 477 //------------------------------------------------------------------------------
 478
 479
 480 //------------------------------------------------------------------------------
 481 void vvSlicer::SetLandmarks(vvLandmarks* landmarks)
 482 {
 483   mLandmarks = landmarks;
 484   if (landmarks) {
 485
 486     if (!mCross)
 487       mCross = vtkSmartPointer<vtkCursor3D>::New();
 488     mCross->SetFocalPoint(0.0,0.0,0.0);
 489     mCross->SetModelBounds(-10,10,-10,10,-10,10);
 490     mCross->AllOff();
 491     mCross->AxesOn();
 492
 493     if (!mLandGlyph)
 494       mLandGlyph = vtkSmartPointer<vtkGlyph3D>::New();
 495     mLandGlyph->SetSource(mCross->GetOutput());
 496     mLandGlyph->SetInput(landmarks->GetOutput());
 497     //mLandGlyph->SetIndexModeToScalar();
 498     mLandGlyph->SetRange(0,1);
 499     mLandGlyph->ScalingOff();
 500
 501     mLandGlyph->SetColorModeToColorByScalar();
 502
 503     if (!mClipBox)
 504       mClipBox = vtkSmartPointer<vtkBox>::New();
 505     if (!mLandClipper)
 506       mLandClipper = vtkSmartPointer<vtkClipPolyData>::New();
 507     mLandClipper->InsideOutOn();
 508     mLandClipper->SetInput(mLandGlyph->GetOutput());
 509     mLandClipper->SetClipFunction(mClipBox);
 510
 511     if (!mLandMapper)
 512       mLandMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
 513     mLandMapper->SetInputConnection(mLandClipper->GetOutputPort());
 514     //mLandMapper->ScalarVisibilityOff();
 515
 516     if (!mLandActor)
 517       mLandActor = vtkSmartPointer<vtkActor>::New();
 518     mLandActor->SetMapper(mLandMapper);
 519     mLandActor->GetProperty()->SetColor(255,10,212);
 520     mLandActor->SetPickable(0);
 521     mLandActor->SetVisibility(true);
 522     this->UpdateDisplayExtent();
 523     this->GetRenderer()->AddActor(mLandActor);
 524   }
 525 }
 526 //------------------------------------------------------------------------------
 527
 528 //------------------------------------------------------------------------------
 529 //FIXME: this function leaks memory, we should fix it someday :)
 530 void vvSlicer::RemoveActor(const std::string& actor_type, int overlay_index)
 531 {
 532   if (actor_type == "vector") {
 533     Renderer->RemoveActor(mVFActor);
 534     mGlyphFilter=NULL;
 535     mVF = NULL;
 536     mArrow = NULL;
 537     mAAFilter=NULL;
 538     mVOIFilter = NULL;
 539     mVFMapper = NULL;
 540     mVFActor = NULL;
 541   }
 542   if (actor_type == "overlay") {
 543     Renderer->RemoveActor(mOverlayActor);
 544     mOverlay = NULL;
 545     mOverlayActor = NULL;
 546     mOverlayMapper = NULL;
 547   }
 548   if (actor_type == "fusion") {
 549     Renderer->RemoveActor(mFusionActor);
 550     mFusion = NULL;
 551     mFusionActor = NULL;
 552     mFusionMapper = NULL;
 553   }
 554   if (actor_type == "contour") {
 555     Renderer->RemoveActor(this->mSurfaceCutActors[overlay_index]->GetActor());
 556     mSurfaceCutActors.erase(mSurfaceCutActors.begin()+overlay_index);
 557   }
 558 }
 559 //------------------------------------------------------------------------------
 560
 561
 562 //------------------------------------------------------------------------------
 563 void vvSlicer::SetVFSubSampling(int sub)
 564 {
 565   if (mVOIFilter) {
 566     mVOIFilter->SetSampleRate(mSubSampling,mSubSampling,mSubSampling);
 567     mSubSampling = sub;
 568   }
 569   UpdateDisplayExtent();
 570   Render();
 571 }
 572 //------------------------------------------------------------------------------
 573
 574
 575 //------------------------------------------------------------------------------
 576 void vvSlicer::SetVFScale(int scale)
 577 {
 578   mScale = scale;
 579   if (mArrow)
 580     mArrow->SetScale(mScale);
 581   UpdateDisplayExtent();
 582   Render();
 583 }
 584 //------------------------------------------------------------------------------
 585
 586 //------------------------------------------------------------------------------
 587 void vvSlicer::SetVFWidth(int width)
 588 {
 589   mVFWidth = width;
 590   if (mVFActor)
 591     mVFActor->GetProperty()->SetLineWidth(mVFWidth);
 592   UpdateDisplayExtent();
 593   Render();
 594 }
 595 //------------------------------------------------------------------------------
 596
 597
 598 //------------------------------------------------------------------------------
 599 void vvSlicer::SetVFLog(int log)
 600 {
 601   mVFLog = log;
 602   if (mGlyphFilter) {
 603     mGlyphFilter->SetUseLog(mVFLog);
 604     mGlyphFilter->Modified();
 605   }
 606   UpdateDisplayExtent();
 607   Render();
 608 }
 609 //------------------------------------------------------------------------------
 610
 611
 612 //------------------------------------------------------------------------------
 613 void vvSlicer::SetTSlice(int t)
 614 {
 615   if (t < 0)
 616     t = 0;
 617   else if ((unsigned int)t >= mImage->GetVTKImages().size())
 618     t = mImage->GetVTKImages().size() -1;
 619
 620   if (mCurrentTSlice == t) return;
 621
 622   mCurrentTSlice = t;
 623   this->SetInput(mImage->GetTransformedVTKImages()[t]);
 624   if (mVF && mVFActor->GetVisibility()) {
 625     if (mVF->GetVTKImages().size() > (unsigned int)mCurrentTSlice)
 626       mVOIFilter->SetInput(mVF->GetTransformedVTKImages()[mCurrentTSlice]);
 627   }
 628   if (mOverlay && mOverlayActor->GetVisibility()) {
 629     if (mOverlay->GetTransformedVTKImages().size() > (unsigned int)mCurrentTSlice)
 630       mOverlayMapper->SetInput(mOverlay->GetTransformedVTKImages()[mCurrentTSlice]);
 631   }
 632   if (mFusion && mFusionActor->GetVisibility()) {
 633     if (mFusion->GetVTKImages().size() > (unsigned int)mCurrentTSlice)
 634       mFusionMapper->SetInput(mFusion->GetTransformedVTKImages()[mCurrentTSlice]);
 635   }
 636   if (mSurfaceCutActors.size() > 0)
 637     for (std::vector<vvMeshActor*>::iterator i=mSurfaceCutActors.begin();
 638          i!=mSurfaceCutActors.end(); i++)
 639       (*i)->SetTimeSlice(mCurrentTSlice);
 640   UpdateDisplayExtent();
 641 }
 642 //------------------------------------------------------------------------------
 643
 644
 645 //------------------------------------------------------------------------------
 646 int vvSlicer::GetTSlice()
 647 {
 648   return mCurrentTSlice;
 649 }
 650 //------------------------------------------------------------------------------
 651
 652
 653 //------------------------------------------------------------------------------
 654 void vvSlicer::SetSliceOrientation(int orientation)
 655 {
 656   //if 2D image, force to watch in Axial View
 657   int extent[6];
 658   this->GetInput()->GetWholeExtent(extent);
 659   if (extent[5]-extent[4] <= 2)
 660     orientation=2;
 661
 662   if (orientation < vtkImageViewer2::SLICE_ORIENTATION_YZ ||
 663       orientation > vtkImageViewer2::SLICE_ORIENTATION_XY) {
 664     vtkErrorMacro("Error - invalid slice orientation " << orientation);
 665     return;
 666   }
 667
 668   this->SliceOrientation = orientation;
 669
 670   // Update the viewer
 671   int *range = this->GetSliceRange();
 672   if (range)
 673     this->Slice = static_cast<int>((range[0] + range[1]) * 0.5);
 674
 675   // Go to current cursor position
 676   // double* cursorPos = GetCursorPosition();
 677   // DDV(cursorPos, 3);
 678   // SetCurrentPosition(cursorPos[0],cursorPos[1],cursorPos[2],cursorPos[3]);
 679
 680   this->UpdateOrientation();
 681   this->UpdateDisplayExtent();
 682
 683   if (this->Renderer && this->GetInput()) {
 684     double scale = this->Renderer->GetActiveCamera()->GetParallelScale();
 685     this->Renderer->ResetCamera();
 686     this->Renderer->GetActiveCamera()->SetParallelScale(scale);
 687   }
 688
 689   SetContourSlice();
 690 }
 691 //----------------------------------------------------------------------------
 692
 693
 694 //----------------------------------------------------------------------------
 695 int * vvSlicer::GetExtent()
 696 {
 697   int *w_ext;
 698   if (mUseReducedExtent) {
 699     w_ext = mReducedExtent;
 700   } else w_ext = GetInput()->GetWholeExtent();
 701   return w_ext;
 702 }
 703 //----------------------------------------------------------------------------
 704
 705
 706 //----------------------------------------------------------------------------
 707 int vvSlicer::GetOrientation()
 708 {
 709   return this->SliceOrientation;
 710 }
 711 //----------------------------------------------------------------------------
 712
 713 //----------------------------------------------------------------------------
 714 void vvSlicer::UpdateDisplayExtent()
 715 {
 716   vtkImageData *input = this->GetInput();
 717   if (!input || !this->ImageActor) {
 718     return;
 719   }
 720   input->UpdateInformation();
 721
 722   // Local copy of extent
 723   int w_ext[6];
 724   for(unsigned int i=0; i<6; i++){
 725     if (mUseReducedExtent)
 726       w_ext[i] = mReducedExtent[i];
 727     else
 728       w_ext[i] = input->GetWholeExtent()[i];
 729   }
 730
 731   // Set slice value
 732   w_ext[ this->SliceOrientation*2   ] = this->Slice;
 733   w_ext[ this->SliceOrientation*2+1 ] = this->Slice;
 734
 735   // Image actor
 736   this->ImageActor->SetDisplayExtent(w_ext);
 737
 738   // Position vector
 739   double position[3] = {0.,0.,0.};
 740   double positionInc = (Renderer->GetActiveCamera()->GetPosition()[this->SliceOrientation] > this->Slice)?10:-10;
 741   position[this->SliceOrientation] += positionInc;
 742
 743   // Overlay image actor
 744   if (mOverlay && mOverlayActor->GetVisibility()) {
 745     int overExtent[6];
 746     mOverlay->GetTransformedVTKImages()[0]->UpdateInformation();
 747     this->ConvertImageToImageDisplayExtent(input, w_ext, mOverlay->GetTransformedVTKImages()[0], overExtent);
 748     ClipDisplayedExtent(overExtent, mOverlayMapper->GetInput()->GetWholeExtent());
 749     mOverlayActor->SetDisplayExtent( overExtent );
 750     mOverlayActor->SetPosition(position);
 751   }
 752   position[this->SliceOrientation] += positionInc;
 753
 754   // Fusion image actor
 755   if (mFusion && mFusionActor->GetVisibility()) {
 756     int fusExtent[6];
 757     mFusion->GetTransformedVTKImages()[0]->UpdateInformation();
 758     this->ConvertImageToImageDisplayExtent(input, w_ext, mFusion->GetTransformedVTKImages()[0], fusExtent);
 759     ClipDisplayedExtent(fusExtent, mFusionMapper->GetInput()->GetWholeExtent());
 760     mFusionActor->SetDisplayExtent(fusExtent);
 761     mFusionActor->SetPosition(position);
 762   }
 763   position[this->SliceOrientation] += positionInc;
 764
 765   // Vector field actor
 766   if (mVF && mVFActor->GetVisibility()) {
 767     int vfExtent[6];
 768     mVF->GetTransformedVTKImages()[0]->UpdateInformation();
 769     this->ConvertImageToImageDisplayExtent(input, w_ext, mVF->GetTransformedVTKImages()[0], vfExtent);
 770     ClipDisplayedExtent(vfExtent, mVOIFilter->GetInput()->GetWholeExtent());
 771     mVOIFilter->SetVOI(vfExtent);
 772     int orientation[3] = {1,1,1};
 773     orientation[this->SliceOrientation] = 0;
 774     mGlyphFilter->SetOrientation(orientation[0], orientation[1], orientation[2]);
 775     mVFMapper->Update();
 776     mVFActor->SetPosition(position);
 777   }
 778   position[this->SliceOrientation] += positionInc;
 779
 780   // Landmarks actor
 781   if (mLandActor) {
 782     if (mClipBox) {
 783       double bounds [6];
 784       for(unsigned int i=0; i<6; i++)
 785         bounds[i] = ImageActor->GetBounds()[i];
 786       bounds[ this->SliceOrientation*2   ] = ImageActor->GetBounds()[ this->SliceOrientation*2  ]-fabs(0.5/this->GetInput()->GetSpacing()[this->SliceOrientation]);
 787       bounds[ this->SliceOrientation*2+1 ] = ImageActor->GetBounds()[ this->SliceOrientation*2+1 ]+fabs(0.5/this->GetInput()->GetSpacing()[this->SliceOrientation]);
 788       mClipBox->SetBounds(bounds);
 789       UpdateLandmarks();
 790     }
 791     mLandActor->SetPosition(position);
 792   }
 793
 794   // Figure out the correct clipping range
 795   if (this->Renderer) {
 796     if (this->InteractorStyle &&
 797         this->InteractorStyle->GetAutoAdjustCameraClippingRange()) {
 798       this->Renderer->ResetCameraClippingRange();
 799     } else {
 800       vtkCamera *cam = this->Renderer->GetActiveCamera();
 801       if (cam) {
 802         double bounds[6];
 803         this->ImageActor->GetBounds(bounds);
 804         double spos = (double)bounds[this->SliceOrientation * 2];
 805         double cpos = (double)cam->GetPosition()[this->SliceOrientation];
 806         double range = fabs(spos - cpos);
 807         double *spacing = input->GetSpacing();
 808         double avg_spacing =
 809           ((double)spacing[0] + (double)spacing[1] + (double)spacing[2]) / 3.0;
 810         cam->SetClippingRange(range - avg_spacing * 3.0, range + avg_spacing * 3.0);
 811       }
 812     }
 813   }
 814 }
 815 //----------------------------------------------------------------------------
 816
 817 //----------------------------------------------------------------------------
 818 void vvSlicer::ConvertImageToImageDisplayExtent(vtkImageData *sourceImage, const int sourceExtent[6],
 819                                                 vtkImageData *targetImage, int targetExtent[6])
 820 {
 821   double dExtents[6];
 822   for(unsigned int i=0; i<6; i++) {
 823     // From source voxel coordinates to world coordinates
 824     dExtents[i] = sourceImage->GetOrigin()[i/2] + sourceImage->GetSpacing()[i/2] * sourceExtent[i];
 825
 826     // From world coordinates to floating point target voxel coordinates
 827     dExtents[i] = (dExtents[i]- targetImage->GetOrigin()[i/2]) / targetImage->GetSpacing()[i/2];
 828
 829     // Round to nearest
 830     targetExtent[i] = itk::Math::Round(dExtents[i]);
 831   }
 832 }
 833 //----------------------------------------------------------------------------
 834
 835 //----------------------------------------------------------------------------
 836 void vvSlicer::ClipDisplayedExtent(int extent[6], int refExtent[6])
 837 {
 838   bool out = false;
 839   int maxBound = 6;
 840
 841   //2D overlay on 3D image specific case
 842   if (refExtent[4] == refExtent[5]) {
 843     maxBound = 4;
 844     extent[4] = refExtent[4];
 845     extent[5] = refExtent[5];
 846   }
 847
 848   for (int i = 0; i < maxBound; i = i+2) {
 849     //if we are totally outside the image
 850     if ( extent[i] > refExtent[i+1] || extent[i+1] < refExtent[i] ) {
 851       out = true;
 852       break;
 853     }
 854     //crop to the limit of the image
 855     extent[i] = (extent[i] > refExtent[i]) ? extent[i] : refExtent[i];
 856     extent[i] = (extent[i] < refExtent[i+1]) ? extent[i] : refExtent[i+1];
 857     extent[i+1] = (extent[i+1] > refExtent[i]) ? extent[i+1] : refExtent[i];
 858     extent[i+1] = (extent[i+1] < refExtent[i+1]) ? extent[i+1] : refExtent[i+1];
 859   }
 860   if (out)
 861     for (int i = 0; i < maxBound; i = i+2) {
 862       extent[i] = refExtent[i];
 863       extent[i+1] = refExtent[i];
 864     }
 865 }
 866 //----------------------------------------------------------------------------
 867
 868
 869 //----------------------------------------------------------------------------
 870 void vvSlicer::UpdateOrientation()
 871 {
 872   // Set the camera position
 873   vtkCamera *cam = this->Renderer ? this->Renderer->GetActiveCamera() : NULL;
 874   if (cam) {
 875     switch (this->SliceOrientation) {
 876     case vtkImageViewer2::SLICE_ORIENTATION_XY:
 877       cam->SetFocalPoint(0,0,0);
 878       cam->SetPosition(0,0,-1); // -1 if medical ?
 879       cam->SetViewUp(0,-1,0);
 880       break;
 881
 882     case vtkImageViewer2::SLICE_ORIENTATION_XZ:
 883       cam->SetFocalPoint(0,0,0);
 884       cam->SetPosition(0,-1,0); // 1 if medical ?
 885       cam->SetViewUp(0,0,1);
 886       break;
 887
 888     case vtkImageViewer2::SLICE_ORIENTATION_YZ:
 889       cam->SetFocalPoint(0,0,0);
 890       cam->SetPosition(-1,0,0); // -1 if medical ?
 891       cam->SetViewUp(0,0,1);
 892       break;
 893     }
 894   }
 895 }
 896 //----------------------------------------------------------------------------
 897
 898
 899 //----------------------------------------------------------------------------
 900 void vvSlicer::SetOpacity(double s)
 901 {
 902   this->GetImageActor()->SetOpacity(s);
 903 }
 904 //----------------------------------------------------------------------------
 905
 906
 907 //----------------------------------------------------------------------------
 908 void vvSlicer::SetRenderWindow(int orientation, vtkRenderWindow * rw)
 909 {
 910   this->Superclass::SetRenderWindow(rw);
 911   this->SetupInteractor(rw->GetInteractor());
 912   ca->SetImageActor(this->GetImageActor());
 913   ca->SetWindowLevel(this->GetWindowLevel());
 914   ca->SetText(2, "<slice>");
 915   ca->SetText(3, "<window>\n<level>");
 916
 917   double bounds[6];
 918   double max = 65000;
 919
 920   bounds[0] = -max;
 921   bounds[1] = max;
 922   bounds[2] = -max;
 923   bounds[3] = max;
 924   bounds[4] = -max;
 925   bounds[5] = max;
 926
 927   crossCursor->SetModelBounds(bounds);
 928   this->GetRenderer()->AddActor(pdmA);
 929   this->GetRenderer()->AddActor(ca);
 930   this->GetRenderer()->ResetCamera();
 931
 932   //this is just a mapping between the labeling of the orientations presented to the user and
 933   //the one used by vtk
 934   SetSliceOrientation(2-(orientation%3));
 935   ResetCamera();
 936 }
 937 //----------------------------------------------------------------------------
 938
 939
 940 //----------------------------------------------------------------------------
 941 void vvSlicer::ResetCamera()
 942 {
 943   this->GetRenderer()->ResetCamera();
 944 }
 945 //----------------------------------------------------------------------------
 946
 947
 948 //----------------------------------------------------------------------------
 949 void vvSlicer::SetDisplayMode(bool i)
 950 {
 951   this->GetImageActor()->SetVisibility(i);
 952   this->GetAnnotation()->SetVisibility(i);
 953   this->GetRenderer()->SetDraw(i);
 954   if (mLandActor)
 955     mLandActor->SetVisibility(i);
 956   pdmA->SetVisibility(i);
 957   if (i)
 958     UpdateDisplayExtent();
 959 }
 960 //----------------------------------------------------------------------------
 961
 962
 963 //----------------------------------------------------------------------------
 964 void vvSlicer::FlipHorizontalView()
 965 {
 966   vtkCamera *cam = this->Renderer ? this->Renderer->GetActiveCamera() : NULL;
 967   if (cam) {
 968     double *position = cam->GetPosition();
 969     switch (this->SliceOrientation) {
 970     case vtkImageViewer2::SLICE_ORIENTATION_XY:
 971       cam->SetPosition(position[0],position[1],-position[2]);
 972       break;
 973
 974     case vtkImageViewer2::SLICE_ORIENTATION_XZ:
 975       cam->SetPosition(position[0],-position[1],position[2]);
 976       break;
 977
 978     case vtkImageViewer2::SLICE_ORIENTATION_YZ:
 979       cam->SetPosition(-position[0],position[1],position[2]);
 980       break;
 981     }
 982     this->Renderer->ResetCameraClippingRange();
 983     this->UpdateDisplayExtent();
 984   }
 985 }
 986 //----------------------------------------------------------------------------
 987
 988
 989 //----------------------------------------------------------------------------
 990 void vvSlicer::FlipVerticalView()
 991 {
 992   vtkCamera *cam = this->Renderer ? this->Renderer->GetActiveCamera() : NULL;
 993   if (cam) {
 994     FlipHorizontalView();
 995     double *viewup = cam->GetViewUp();
 996     cam->SetViewUp(-viewup[0],-viewup[1],-viewup[2]);
 997     this->UpdateDisplayExtent();
 998   }
 999 }
1000 //----------------------------------------------------------------------------
1001
1002
1003 //----------------------------------------------------------------------------
1004 void vvSlicer::SetColorWindow(double window)
1005 {
1006   vtkLookupTable* LUT = static_cast<vtkLookupTable*>(this->GetWindowLevel()->GetLookupTable());
1007   if ( LUT ) {
1008     double level = this->GetWindowLevel()->GetLevel();
1009     LUT->SetTableRange(level-fabs(window)/4,level+fabs(window)/4);
1010     LUT->Build();
1011   }
1012   this->vtkImageViewer2::SetColorWindow(window);
1013 }
1014 //----------------------------------------------------------------------------
1015
1016
1017 //----------------------------------------------------------------------------
1018 void vvSlicer::SetColorLevel(double level)
1019 {
1020   vtkLookupTable* LUT = static_cast<vtkLookupTable*>(this->GetWindowLevel()->GetLookupTable());
1021   if ( LUT ) {
1022     double window = this->GetWindowLevel()->GetWindow();
1023     LUT->SetTableRange(level-fabs(window)/4,level+fabs(window)/4);
1024     LUT->Build();
1025   }
1026   this->vtkImageViewer2::SetColorLevel(level);
1027 }
1028 //----------------------------------------------------------------------------
1029
1030 //----------------------------------------------------------------------------
1031 // Returns the min an the max value in a 41x41 region around the mouse pointer
1032 void vvSlicer::GetExtremasAroundMousePointer(double & min, double & max)
1033 {
1034   //Get mouse pointer position in view coordinates
1035   double fLocalExtents[6];
1036   for(int i=0; i<3; i++) {
1037     fLocalExtents[i*2  ] = mCurrent[i];
1038     fLocalExtents[i*2+1] = mCurrent[i];
1039   }
1040   this->Renderer->WorldToView(fLocalExtents[0], fLocalExtents[2], fLocalExtents[4]);
1041   this->Renderer->WorldToView(fLocalExtents[1], fLocalExtents[3], fLocalExtents[5]);
1042   for(int i=0; i<3; i++) {
1043     if (i!=SliceOrientation) { //SR: assumes that SliceOrientation is valid in ViewCoordinates (???)
1044       fLocalExtents[i*2  ] -= 0.2;
1045       fLocalExtents[i*2+1] += 0.2;
1046     }
1047   }
1048   this->Renderer->ViewToWorld(fLocalExtents[0], fLocalExtents[2], fLocalExtents[4]);
1049   this->Renderer->ViewToWorld(fLocalExtents[1], fLocalExtents[3], fLocalExtents[5]);
1050
1051   //Convert to image pixel coordinates (rounded)
1052   int iLocalExtents[6];
1053   for(int i=0; i<3; i++) {
1054     fLocalExtents[i*2  ] = (fLocalExtents[i*2  ] - this->GetInput()->GetOrigin()[i])/this->GetInput()->GetSpacing()[i];
1055     fLocalExtents[i*2+1] = (fLocalExtents[i*2+1] - this->GetInput()->GetOrigin()[i])/this->GetInput()->GetSpacing()[i];
1056
1057     iLocalExtents[i*2  ] = lrint(fLocalExtents[i*2  ]);
1058     iLocalExtents[i*2+1] = lrint(fLocalExtents[i*2+1]);
1059
1060     if(iLocalExtents[i*2  ]>iLocalExtents[i*2+1])
1061       std::swap(iLocalExtents[i*2], iLocalExtents[i*2+1]);
1062   }
1063
1064   vtkSmartPointer<vtkExtractVOI> voiFilter = vtkSmartPointer<vtkExtractVOI>::New();
1065   voiFilter->SetInput(this->GetInput());
1066   voiFilter->SetVOI(iLocalExtents);
1067   voiFilter->Update();
1068   if (!voiFilter->GetOutput()->GetNumberOfPoints()) {
1069     min = 0;
1070     max = 0;
1071     return;
1072   }
1073
1074   vtkSmartPointer<vtkImageAccumulate> accFilter = vtkSmartPointer<vtkImageAccumulate>::New();
1075   accFilter->SetInput(voiFilter->GetOutput());
1076   accFilter->Update();
1077
1078   min = *(accFilter->GetMin());
1079   max = *(accFilter->GetMax());
1080 }
1081 //----------------------------------------------------------------------------
1082
1083 //----------------------------------------------------------------------------
1084 double vvSlicer::GetScalarComponentAsDouble(vtkImageData *image, int X, double Y, double Z, int &ix, int &iy, int &iz, int component)
1085 {
1086   ix = lrint(X);
1087   iy = lrint(Y);
1088   iz = lrint(Z);
1089   if (ix < image->GetWholeExtent()[0] ||
1090       ix > image->GetWholeExtent()[1] ||
1091       iy < image->GetWholeExtent()[2] ||
1092       iy > image->GetWholeExtent()[3] ||
1093       iz < image->GetWholeExtent()[4] ||
1094       iz > image->GetWholeExtent()[5] )
1095     return sqrt(-1.);
1096
1097   image->SetUpdateExtent(ix, ix, iy, iy, iz, iz);
1098   image->Update();
1099   return image->GetScalarComponentAsDouble(ix, iy, iz, component);
1100 }
1101 //----------------------------------------------------------------------------
1102
1103 //----------------------------------------------------------------------------
1104 void vvSlicer::Render()
1105 {
1106   if (this->GetWindowLevel()->GetLookupTable() && !this->mOverlay && !this->mFusion) {
1107     legend->SetLookupTable(this->GetWindowLevel()->GetLookupTable());
1108     legend->SetVisibility(1);
1109   } else legend->SetVisibility(0);
1110
1111   if (ca->GetVisibility()) {
1112     std::string worldPos = "";
1113     std::stringstream world1;
1114     std::stringstream world2;
1115     std::stringstream world3;
1116     world1 << (int)mCurrent[0];
1117     world2 << (int)mCurrent[1];
1118     world3 << (int)mCurrent[2];
1119     double X = (mCurrent[0] - this->GetInput()->GetOrigin()[0])/this->GetInput()->GetSpacing()[0];
1120     double Y = (mCurrent[1] - this->GetInput()->GetOrigin()[1])/this->GetInput()->GetSpacing()[1];
1121     double Z = (mCurrent[2] - this->GetInput()->GetOrigin()[2])/this->GetInput()->GetSpacing()[2];
1122
1123 //     if (X < this->GetInput()->GetWholeExtent()[0]) X = this->GetInput()->GetWholeExtent()[0];
1124 //     else if (X > this->GetInput()->GetWholeExtent()[1]) X = this->GetInput()->GetWholeExtent()[1];
1125 //     if (Y < this->GetInput()->GetWholeExtent()[2]) Y = this->GetInput()->GetWholeExtent()[2];
1126 //     else if (Y > this->GetInput()->GetWholeExtent()[3]) Y = this->GetInput()->GetWholeExtent()[3];
1127 //     if (Z < this->GetInput()->GetWholeExtent()[4]) Z = this->GetInput()->GetWholeExtent()[4];
1128 //     else if (Z > this->GetInput()->GetWholeExtent()[5]) Z = this->GetInput()->GetWholeExtent()[5];
1129
1130     if (X >= this->GetInput()->GetWholeExtent()[0] &&
1131         X <= this->GetInput()->GetWholeExtent()[1] &&
1132         Y >= this->GetInput()->GetWholeExtent()[2] &&
1133         Y <= this->GetInput()->GetWholeExtent()[3] &&
1134         Z >= this->GetInput()->GetWholeExtent()[4] &&
1135         Z <= this->GetInput()->GetWholeExtent()[5]) {
1136
1137
1138       int ix, iy, iz;
1139       double value = this->GetScalarComponentAsDouble(this->GetInput(), X, Y, Z, ix, iy, iz);
1140
1141       std::stringstream pixel1;
1142       std::stringstream pixel2;
1143       std::stringstream pixel3;
1144       std::stringstream temps;
1145       pixel1 << ix;
1146       pixel2 << iy;
1147       pixel3 << iz;
1148       temps << mCurrentTSlice;
1149
1150       std::stringstream val;
1151       val << value;
1152       worldPos += "data value : " + val.str();
1153       worldPos += "\n mm : " + world1.str() + " " + world2.str() + " " +
1154         world3.str() + " " + temps.str();
1155       worldPos += "\n pixel : " + pixel1.str() + " " + pixel2.str() + " " +
1156         pixel3.str() + " " + temps.str();
1157     }
1158     ca->SetText(1,worldPos.c_str());
1159   }
1160
1161   if (pdmA->GetVisibility()) {
1162     double x = mCursor[0];
1163     double y = mCursor[1];
1164     double z = mCursor[2];
1165     double xCursor = (x - this->GetInput()->GetOrigin()[0])/this->GetInput()->GetSpacing()[0];
1166     double yCursor = (y - this->GetInput()->GetOrigin()[1])/this->GetInput()->GetSpacing()[1];
1167     double zCursor = (z - this->GetInput()->GetOrigin()[2])/this->GetInput()->GetSpacing()[2];
1168
1169     if (xCursor >= this->GetImageActor()->GetDisplayExtent()[0] &&
1170         xCursor < this->GetImageActor()->GetDisplayExtent()[1]+1 &&
1171         yCursor >= this->GetImageActor()->GetDisplayExtent()[2] &&
1172         yCursor < this->GetImageActor()->GetDisplayExtent()[3]+1 &&
1173         zCursor >= this->GetImageActor()->GetDisplayExtent()[4] &&
1174         zCursor < this->GetImageActor()->GetDisplayExtent()[5]+1 ) {
1175       vtkRenderer * renderer = this->Renderer;
1176
1177       renderer->WorldToView(x,y,z);
1178       renderer->ViewToNormalizedViewport(x,y,z);
1179       renderer->NormalizedViewportToViewport(x,y);
1180       renderer->ViewportToNormalizedDisplay(x,y);
1181       renderer->NormalizedDisplayToDisplay(x,y);
1182       crossCursor->SetFocalPoint(x,y,z);
1183     } else
1184       crossCursor->SetFocalPoint(-1,-1,z);
1185   }
1186
1187
1188   if (mOverlay && mOverlayActor->GetVisibility()) {
1189     mOverlayMapper->SetWindow(this->GetColorWindow());
1190     mOverlayMapper->SetLevel(this->GetColorLevel());
1191     mOverlayMapper->GetOutput()->SetUpdateExtent(mOverlayActor->GetDisplayExtent());
1192     mOverlayMapper->GetOutput()->Update();
1193     mOverlayMapper->Update();
1194   }
1195   if (mLandMapper)
1196     UpdateLandmarks();
1197
1198   this->GetRenderWindow()->Render();
1199 }
1200 //----------------------------------------------------------------------------
1201
1202
1203 //----------------------------------------------------------------------------
1204 void vvSlicer::UpdateCursorPosition()
1205 {
1206   if (this->GetImageActor()->GetVisibility()) {
1207     pdmA->SetVisibility(true);
1208     mCursor[0] = mCurrent[0];
1209     mCursor[1] = mCurrent[1];
1210     mCursor[2] = mCurrent[2];
1211     mCursor[3] = mCurrentTSlice;
1212   }
1213 }
1214 //----------------------------------------------------------------------------
1215
1216
1217 //----------------------------------------------------------------------------
1218 void vvSlicer::UpdateLandmarks()
1219 {
1220   vtkPolyData *pd = static_cast<vtkPolyData*>(mLandClipper->GetInput());
1221   if (pd->GetPoints()) {
1222     mLandGlyph->SetRange(0,1);
1223     mLandGlyph->Modified();
1224     mLandGlyph->Update();
1225
1226     mClipBox->Modified();
1227     mLandClipper->Update();
1228     mLandMapper->Update();
1229   }
1230
1231 }
1232 //----------------------------------------------------------------------------
1233
1234
1235 //----------------------------------------------------------------------------
1236 void vvSlicer::SetSlice(int slice)
1237 {
1238   int *range = this->GetSliceRange();
1239   if (range) {
1240     if (slice < range[0]) {
1241       slice = range[0];
1242     } else if (slice > range[1]) {
1243       slice = range[1];
1244     }
1245   }
1246
1247   if (this->Slice == slice) {
1248     return;
1249   }
1250
1251   this->Slice = slice;
1252   SetContourSlice();
1253   this->Modified();
1254   this->UpdateDisplayExtent();
1255
1256   // Seems to work without this line
1257   //this->Render();
1258 }
1259 //----------------------------------------------------------------------------
1260
1261
1262 //----------------------------------------------------------------------------
1263 void vvSlicer::SetContourSlice()
1264 {
1265   if (mSurfaceCutActors.size() > 0)
1266     for (std::vector<vvMeshActor*>::iterator i=mSurfaceCutActors.begin();
1267          i!=mSurfaceCutActors.end(); i++)
1268       (*i)->SetCutSlice((this->Slice)*this->GetImage()->GetSpacing()[this->SliceOrientation]+
1269                         this->GetImage()->GetOrigin()[this->SliceOrientation]);
1270 }
1271 //----------------------------------------------------------------------------
1272
1273
1274 //----------------------------------------------------------------------------
1275 void vvSlicer::ForceUpdateDisplayExtent()
1276 {
1277   this->UpdateDisplayExtent();
1278 }
1279 //----------------------------------------------------------------------------
1280
1281
1282 //----------------------------------------------------------------------------
1283 int* vvSlicer::GetDisplayExtent()
1284 {
1285   return this->GetImageActor()->GetDisplayExtent();
1286 }
1287 //----------------------------------------------------------------------------
1288
1289
1290 //----------------------------------------------------------------------------
1291 void vvSlicer::PrintSelf(ostream& os, vtkIndent indent)
1292 {
1293   this->Superclass::PrintSelf(os, indent);
1294 }
1295 //----------------------------------------------------------------------------
1296
1297 //----------------------------------------------------------------------------
1298 void vvSlicer::SetVFColor(double r, double g, double b)
1299 {
1300   double mVFColorHSV[3];
1301   mVFColor[0] = r;
1302   mVFColor[1] = g;
1303   mVFColor[2] = b;
1304
1305   vtkMath::RGBToHSV(mVFColor, mVFColorHSV);
1306   mVFColorLUT->SetHueRange(mVFColorHSV[0], mVFColorHSV[0]);
1307   mVFColorLUT->SetSaturationRange(mVFColorHSV[1],mVFColorHSV[1]);
1308   mVFColorLUT->SetValueRange(mVFColorHSV[2], mVFColorHSV[2]);
1309
1310   this->Render();
1311 }
1312