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 vvSlicer::~vvSlicer()
 272 {
 273   for (std::vector<vvMeshActor*>::iterator i=mSurfaceCutActors.begin();
 274        i!=mSurfaceCutActors.end(); i++)
 275     delete (*i);
 276 }
 277 //------------------------------------------------------------------------------
 278
 279
 280 //------------------------------------------------------------------------------
 281 void vvSlicer::SetCurrentPosition(double x, double y, double z, int t)
 282 {
 283   mCurrent[0] = x;
 284   mCurrent[1] = y;
 285   mCurrent[2] = z;
 286   mCurrentTSlice = t;
 287 }
 288 //------------------------------------------------------------------------------
 289
 290
 291 //------------------------------------------------------------------------------
 292 void vvSlicer::SetImage(vvImage::Pointer image)
 293 {
 294   if (image->GetVTKImages().size()) {
 295     mImage = image;
 296     this->Superclass::SetInput(image->GetTransformedVTKImages()[0]);
 297
 298     int extent[6];
 299     this->GetInput()->GetWholeExtent(extent);
 300
 301     // Prevent crash when reload -> change slice if outside extent
 302     if (Slice < extent[SliceOrientation*2] || Slice>=extent[SliceOrientation*2+1]) {
 303       Slice = (extent[SliceOrientation*2+1]-extent[SliceOrientation*2])/2.0;
 304     }
 305
 306     // Make sure that the required part image has been computed
 307     extent[SliceOrientation*2] = Slice;
 308     extent[SliceOrientation*2+1] = Slice;
 309     image->GetTransformedVTKImages()[0]->SetUpdateExtent(extent);
 310     image->GetTransformedVTKImages()[0]->Update();
 311
 312     this->UpdateDisplayExtent();
 313
 314     mCurrentTSlice = 0;
 315     ca->SetText(0,mFileName.c_str());
 316   }
 317 }
 318 //------------------------------------------------------------------------------
 319
 320
 321 //------------------------------------------------------------------------------
 322 void vvSlicer::SetOverlay(vvImage::Pointer overlay)
 323 {
 324   if (overlay->GetVTKImages().size()) {
 325     mOverlay = overlay;
 326
 327     if (!mOverlayMapper)
 328       mOverlayMapper = vtkSmartPointer<vtkImageMapToWindowLevelColors>::New();
 329     mOverlayMapper->SetInput(overlay->GetTransformedVTKImages()[0]);
 330
 331     if (!mOverlayActor) {
 332       mOverlayActor = vtkSmartPointer<vvBlendImageActor>::New();
 333       mOverlayActor->SetInput(mOverlayMapper->GetOutput());
 334       mOverlayActor->SetPickable(0);
 335       mOverlayActor->SetVisibility(false);
 336       mOverlayActor->SetOpacity(0.5);
 337       this->UpdateDisplayExtent();
 338     }
 339
 340     //stupid but necessary : the Overlay need to be rendered before fusion
 341     if (mFusionActor) {
 342       this->GetRenderer()->RemoveActor(mFusionActor);
 343       this->GetRenderer()->AddActor(mOverlayActor);
 344       this->GetRenderer()->AddActor(mFusionActor);
 345     } else
 346       this->GetRenderer()->AddActor(mOverlayActor);
 347
 348     //Synchronize slice
 349     SetTSlice(mCurrentTSlice);
 350   }
 351 }
 352 //------------------------------------------------------------------------------
 353
 354
 355 //------------------------------------------------------------------------------
 356 void vvSlicer::SetFusion(vvImage::Pointer fusion)
 357 {
 358   if (fusion->GetVTKImages().size()) {
 359     mFusion = fusion;
 360
 361     if (!mFusionMapper)
 362       mFusionMapper = vtkSmartPointer<vtkImageMapToWindowLevelColors>::New();
 363     mFusionMapper->SetInput(fusion->GetTransformedVTKImages()[0]);
 364
 365     if (!mFusionActor) {
 366       mFusionActor = vtkSmartPointer<vtkImageActor>::New();
 367       mFusionActor->SetInput(mFusionMapper->GetOutput());
 368       mFusionActor->SetPickable(0);
 369       mFusionActor->SetVisibility(false);
 370       mFusionActor->SetOpacity(0.7);
 371       this->UpdateDisplayExtent();
 372       this->GetRenderer()->AddActor(mFusionActor);
 373     }
 374
 375     //Synchronize slice
 376     SetTSlice(mCurrentTSlice);
 377   }
 378 }
 379 //------------------------------------------------------------------------------
 380
 381
 382 //------------------------------------------------------------------------------
 383 void vvSlicer::SetActorVisibility(const std::string& actor_type, int overlay_index ,bool vis)
 384 {
 385   if (actor_type == "vector") {
 386     this->mVFActor->SetVisibility(vis);
 387   }
 388   if (actor_type == "overlay") {
 389     this->mOverlayActor->SetVisibility(vis);
 390   }
 391   if (actor_type == "fusion") {
 392     this->mFusionActor->SetVisibility(vis);
 393   }
 394   if (actor_type == "contour")
 395     this->mSurfaceCutActors[overlay_index]->GetActor()->SetVisibility(vis);
 396   UpdateDisplayExtent();
 397 }
 398 //------------------------------------------------------------------------------
 399
 400
 401 //------------------------------------------------------------------------------
 402 void vvSlicer::SetVF(vvImage::Pointer vf)
 403 {
 404   if (vf->GetVTKImages().size()) {
 405     mVF = vf;
 406
 407     if (!mAAFilter) {
 408       mAAFilter= vtkSmartPointer<vtkAssignAttribute>::New();
 409       mVOIFilter = vtkSmartPointer<vtkExtractVOI>::New();
 410       mVOIFilter->SetSampleRate(mSubSampling,mSubSampling,mSubSampling);
 411     }
 412     mVOIFilter->SetInput(vf->GetTransformedVTKImages()[0]);
 413     mAAFilter->SetInput(mVOIFilter->GetOutput());
 414     ///This tells VTK to use the scalar (pixel) data of the image to draw the little arrows
 415     mAAFilter->Assign(vtkDataSetAttributes::SCALARS, vtkDataSetAttributes::VECTORS, vtkAssignAttribute::POINT_DATA);
 416
 417     if (!mArrow)
 418       mArrow = vtkSmartPointer<vvGlyphSource>::New();
 419     mArrow->SetGlyphTypeToSpecificArrow();
 420     mArrow->SetScale(mScale);
 421     mArrow->FilledOff();
 422
 423     // Glyph the gradient vector (with arrows)
 424     if (!mGlyphFilter)
 425       mGlyphFilter = vtkSmartPointer<vvGlyph2D>::New();
 426     mGlyphFilter->SetInput(mAAFilter->GetOutput());
 427     mGlyphFilter->SetSource(mArrow->GetOutput());
 428     mGlyphFilter->ScalingOn();
 429     mGlyphFilter->SetScaleModeToScaleByVector();
 430     mGlyphFilter->OrientOn();
 431     mGlyphFilter->SetVectorModeToUseVector();
 432     mGlyphFilter->SetColorModeToColorByVector();
 433
 434     if (!mVFColorLUT)
 435       mVFColorLUT = vtkSmartPointer<vtkLookupTable>::New();
 436
 437     double mVFColorHSV[3];
 438     vtkMath::RGBToHSV(mVFColor, mVFColorHSV);
 439     mVFColorLUT->SetHueRange(mVFColorHSV[0], mVFColorHSV[0]);
 440     mVFColorLUT->SetSaturationRange(mVFColorHSV[1],mVFColorHSV[1]);
 441     mVFColorLUT->SetValueRange(mVFColorHSV[2], mVFColorHSV[2]);
 442
 443     if (!mVFMapper)
 444       mVFMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
 445     mVFMapper->SetInput(mGlyphFilter->GetOutput());
 446     mVFMapper->ImmediateModeRenderingOn();
 447     mVFMapper->SetLookupTable(mVFColorLUT);
 448
 449     if (!mVFActor)
 450       mVFActor = vtkSmartPointer<vtkActor>::New();
 451     mVFActor->SetMapper(mVFMapper);
 452     mVFActor->SetPickable(0);
 453     mVFActor->GetProperty()->SetLineWidth(mVFWidth);
 454     this->UpdateDisplayExtent();
 455     this->GetRenderer()->AddActor(mVFActor);
 456
 457     //Synchronize slice
 458     SetTSlice(mCurrentTSlice);
 459   }
 460 }
 461 //------------------------------------------------------------------------------
 462
 463
 464 //------------------------------------------------------------------------------
 465 void vvSlicer::SetLandmarks(vvLandmarks* landmarks)
 466 {
 467   mLandmarks = landmarks;
 468   if (landmarks) {
 469
 470     if (!mCross)
 471       mCross = vtkSmartPointer<vtkCursor3D>::New();
 472     mCross->SetFocalPoint(0.0,0.0,0.0);
 473     mCross->SetModelBounds(-10,10,-10,10,-10,10);
 474     mCross->AllOff();
 475     mCross->AxesOn();
 476
 477     if (!mLandGlyph)
 478       mLandGlyph = vtkSmartPointer<vtkGlyph3D>::New();
 479     mLandGlyph->SetSource(mCross->GetOutput());
 480     mLandGlyph->SetInput(landmarks->GetOutput());
 481     //mLandGlyph->SetIndexModeToScalar();
 482     mLandGlyph->SetRange(0,1);
 483     mLandGlyph->ScalingOff();
 484
 485     mLandGlyph->SetColorModeToColorByScalar();
 486
 487     if (!mClipBox)
 488       mClipBox = vtkSmartPointer<vtkBox>::New();
 489     if (!mLandClipper)
 490       mLandClipper = vtkSmartPointer<vtkClipPolyData>::New();
 491     mLandClipper->InsideOutOn();
 492     mLandClipper->SetInput(mLandGlyph->GetOutput());
 493     mLandClipper->SetClipFunction(mClipBox);
 494
 495     if (!mLandMapper)
 496       mLandMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
 497     mLandMapper->SetInputConnection(mLandClipper->GetOutputPort());
 498     //mLandMapper->ScalarVisibilityOff();
 499
 500     if (!mLandActor)
 501       mLandActor = vtkSmartPointer<vtkActor>::New();
 502     mLandActor->SetMapper(mLandMapper);
 503     mLandActor->GetProperty()->SetColor(255,10,212);
 504     mLandActor->SetPickable(0);
 505     mLandActor->SetVisibility(true);
 506     this->UpdateDisplayExtent();
 507     this->GetRenderer()->AddActor(mLandActor);
 508   }
 509 }
 510 //------------------------------------------------------------------------------
 511
 512 //------------------------------------------------------------------------------
 513 //FIXME: this function leaks memory, we should fix it someday :)
 514 void vvSlicer::RemoveActor(const std::string& actor_type, int overlay_index)
 515 {
 516   if (actor_type == "vector") {
 517     Renderer->RemoveActor(mVFActor);
 518     mGlyphFilter=NULL;
 519     mVF = NULL;
 520     mArrow = NULL;
 521     mAAFilter=NULL;
 522     mVOIFilter = NULL;
 523     mVFMapper = NULL;
 524     mVFActor = NULL;
 525   }
 526   if (actor_type == "overlay") {
 527     Renderer->RemoveActor(mOverlayActor);
 528     mOverlay = NULL;
 529     mOverlayActor = NULL;
 530     mOverlayMapper = NULL;
 531   }
 532   if (actor_type == "fusion") {
 533     Renderer->RemoveActor(mFusionActor);
 534     mFusion = NULL;
 535     mFusionActor = NULL;
 536     mFusionMapper = NULL;
 537   }
 538   if (actor_type == "contour") {
 539     Renderer->RemoveActor(this->mSurfaceCutActors[overlay_index]->GetActor());
 540     mSurfaceCutActors.erase(mSurfaceCutActors.begin()+overlay_index);
 541   }
 542 }
 543 //------------------------------------------------------------------------------
 544
 545
 546 //------------------------------------------------------------------------------
 547 void vvSlicer::SetVFSubSampling(int sub)
 548 {
 549   if (mVOIFilter) {
 550     mVOIFilter->SetSampleRate(mSubSampling,mSubSampling,mSubSampling);
 551     mSubSampling = sub;
 552   }
 553   UpdateDisplayExtent();
 554   Render();
 555 }
 556 //------------------------------------------------------------------------------
 557
 558
 559 //------------------------------------------------------------------------------
 560 void vvSlicer::SetVFScale(int scale)
 561 {
 562   mScale = scale;
 563   if (mArrow)
 564     mArrow->SetScale(mScale);
 565   UpdateDisplayExtent();
 566   Render();
 567 }
 568 //------------------------------------------------------------------------------
 569
 570 //------------------------------------------------------------------------------
 571 void vvSlicer::SetVFWidth(int width)
 572 {
 573   mVFWidth = width;
 574   if (mVFActor)
 575     mVFActor->GetProperty()->SetLineWidth(mVFWidth);
 576   UpdateDisplayExtent();
 577   Render();
 578 }
 579 //------------------------------------------------------------------------------
 580
 581
 582 //------------------------------------------------------------------------------
 583 void vvSlicer::SetVFLog(int log)
 584 {
 585   mVFLog = log;
 586   if (mGlyphFilter) {
 587     mGlyphFilter->SetUseLog(mVFLog);
 588     mGlyphFilter->Modified();
 589   }
 590   UpdateDisplayExtent();
 591   Render();
 592 }
 593 //------------------------------------------------------------------------------
 594
 595
 596 //------------------------------------------------------------------------------
 597 void vvSlicer::SetTSlice(int t)
 598 {
 599   if (t < 0)
 600     t = 0;
 601   else if ((unsigned int)t >= mImage->GetVTKImages().size())
 602     t = mImage->GetVTKImages().size() -1;
 603
 604   if (mCurrentTSlice == t) return;
 605
 606   mCurrentTSlice = t;
 607   this->SetInput(mImage->GetTransformedVTKImages()[t]);
 608   if (mVF && mVFActor->GetVisibility()) {
 609     if (mVF->GetVTKImages().size() > (unsigned int)mCurrentTSlice)
 610       mVOIFilter->SetInput(mVF->GetTransformedVTKImages()[mCurrentTSlice]);
 611   }
 612   if (mOverlay && mOverlayActor->GetVisibility()) {
 613     if (mOverlay->GetTransformedVTKImages().size() > (unsigned int)mCurrentTSlice)
 614       mOverlayMapper->SetInput(mOverlay->GetTransformedVTKImages()[mCurrentTSlice]);
 615   }
 616   if (mFusion && mFusionActor->GetVisibility()) {
 617     if (mFusion->GetVTKImages().size() > (unsigned int)mCurrentTSlice)
 618       mFusionMapper->SetInput(mFusion->GetTransformedVTKImages()[mCurrentTSlice]);
 619   }
 620   if (mSurfaceCutActors.size() > 0)
 621     for (std::vector<vvMeshActor*>::iterator i=mSurfaceCutActors.begin();
 622          i!=mSurfaceCutActors.end(); i++)
 623       (*i)->SetTimeSlice(mCurrentTSlice);
 624   UpdateDisplayExtent();
 625 }
 626 //------------------------------------------------------------------------------
 627
 628
 629 //------------------------------------------------------------------------------
 630 int vvSlicer::GetTSlice()
 631 {
 632   return mCurrentTSlice;
 633 }
 634 //------------------------------------------------------------------------------
 635
 636
 637 //------------------------------------------------------------------------------
 638 void vvSlicer::SetSliceOrientation(int orientation)
 639 {
 640   //if 2D image, force to watch in Axial View
 641   int extent[6];
 642   this->GetInput()->GetWholeExtent(extent);
 643   if (extent[5]-extent[4] <= 2)
 644     orientation=2;
 645
 646   if (orientation < vtkImageViewer2::SLICE_ORIENTATION_YZ ||
 647       orientation > vtkImageViewer2::SLICE_ORIENTATION_XY) {
 648     vtkErrorMacro("Error - invalid slice orientation " << orientation);
 649     return;
 650   }
 651
 652   this->SliceOrientation = orientation;
 653
 654   // Update the viewer
 655   int *range = this->GetSliceRange();
 656   if (range)
 657     this->Slice = static_cast<int>((range[0] + range[1]) * 0.5);
 658
 659   // Go to current cursor position
 660   // double* cursorPos = GetCursorPosition();
 661   // DDV(cursorPos, 3);
 662   // SetCurrentPosition(cursorPos[0],cursorPos[1],cursorPos[2],cursorPos[3]);
 663
 664   this->UpdateOrientation();
 665   this->UpdateDisplayExtent();
 666
 667   if (this->Renderer && this->GetInput()) {
 668     double scale = this->Renderer->GetActiveCamera()->GetParallelScale();
 669     this->Renderer->ResetCamera();
 670     this->Renderer->GetActiveCamera()->SetParallelScale(scale);
 671   }
 672
 673   SetContourSlice();
 674 }
 675 //----------------------------------------------------------------------------
 676
 677
 678 //----------------------------------------------------------------------------
 679 int * vvSlicer::GetExtent()
 680 {
 681   int *w_ext;
 682   if (mUseReducedExtent) {
 683     w_ext = mReducedExtent;
 684   } else w_ext = GetInput()->GetWholeExtent();
 685   return w_ext;
 686 }
 687 //----------------------------------------------------------------------------
 688
 689
 690 //----------------------------------------------------------------------------
 691 int vvSlicer::GetOrientation()
 692 {
 693   return this->SliceOrientation;
 694 }
 695 //----------------------------------------------------------------------------
 696
 697
 698 //----------------------------------------------------------------------------
 699 void vvSlicer::UpdateDisplayExtent()
 700 {
 701   vtkImageData *input = this->GetInput();
 702   if (!input || !this->ImageActor) {
 703     return;
 704   }
 705   input->UpdateInformation();
 706   int *w_ext;// = input->GetWholeExtent();
 707
 708   if (mUseReducedExtent) {
 709     w_ext = mReducedExtent;
 710   } else w_ext = input->GetWholeExtent();
 711
 712   switch (this->SliceOrientation) {
 713   case vtkImageViewer2::SLICE_ORIENTATION_XY:
 714     this->ImageActor->SetDisplayExtent(
 715                                        w_ext[0], w_ext[1], w_ext[2], w_ext[3], this->Slice, this->Slice);
 716     if (mVF && mVFActor->GetVisibility()) {
 717       int vfExtent[6];
 718       ComputeVFDisplayedExtent(w_ext[0], w_ext[1], w_ext[2], w_ext[3], this->Slice, this->Slice,vfExtent);
 719       mVOIFilter->SetVOI(vfExtent);
 720       mGlyphFilter->SetOrientation(1,1,0);
 721       mVFMapper->Update();
 722       // put the vector field between the image and the camera
 723       if (Renderer->GetActiveCamera()->GetPosition()[2] > this->Slice)
 724         mVFActor->SetPosition(0,0,ImageActor->GetBounds()[5]+2);
 725       else
 726         mVFActor->SetPosition(0,0,ImageActor->GetBounds()[4]-2);
 727     }
 728     if (mOverlay && mOverlayActor->GetVisibility()) {
 729       int overExtent[6];
 730       ComputeOverlayDisplayedExtent(w_ext[0], w_ext[1], w_ext[2], w_ext[3], this->Slice, this->Slice,overExtent);
 731       mOverlayActor->SetDisplayExtent(overExtent);
 732       if (Renderer->GetActiveCamera()->GetPosition()[2] > this->Slice)
 733         mOverlayActor->SetPosition(0,0,1);
 734       else
 735         mOverlayActor->SetPosition(0,0,-1);
 736     }
 737     if (mFusion && mFusionActor->GetVisibility()) {
 738       int fusExtent[6];
 739       ComputeFusionDisplayedExtent(w_ext[0], w_ext[1], w_ext[2], w_ext[3], this->Slice, this->Slice,fusExtent);
 740       mFusionActor->SetDisplayExtent(fusExtent);
 741       if (Renderer->GetActiveCamera()->GetPosition()[2] > this->Slice)
 742         mFusionActor->SetPosition(0,0,1.5);
 743       else
 744         mFusionActor->SetPosition(0,0,-1.5);
 745     }
 746     if (mLandActor) {
 747       if (mClipBox) {
 748         double bounds [6];
 749         bounds[0] = ImageActor->GetBounds()[0];
 750         bounds[1] = ImageActor->GetBounds()[1];
 751         bounds[2] = ImageActor->GetBounds()[2];
 752         bounds[3] = ImageActor->GetBounds()[3];
 753         bounds[4] = ImageActor->GetBounds()[4]-fabs(0.5/this->GetInput()->GetSpacing()[2]);
 754         bounds[5] = ImageActor->GetBounds()[5]+fabs(0.5/this->GetInput()->GetSpacing()[2]);
 755         mClipBox->SetBounds(bounds);
 756         UpdateLandmarks();
 757       }
 758       mLandActor->SetPosition(0,0,-1.5);
 759       /*
 760       if (Renderer->GetActiveCamera()->GetPosition()[2] > this->Slice)
 761         mLandActor->SetPosition(0,0,1.5);
 762       else
 763         mLandActor->SetPosition(0,0,-1.5);
 764       */
 765     }
 766     break;
 767
 768   case vtkImageViewer2::SLICE_ORIENTATION_XZ:
 769     this->ImageActor->SetDisplayExtent(
 770                                        w_ext[0], w_ext[1], this->Slice, this->Slice, w_ext[4], w_ext[5]);
 771     if (mVF && mVFActor->GetVisibility()) {
 772       int vfExtent[6];
 773       ComputeVFDisplayedExtent(w_ext[0], w_ext[1], this->Slice, this->Slice, w_ext[4], w_ext[5],vfExtent);
 774       mVOIFilter->SetVOI(vfExtent);
 775       mGlyphFilter->SetOrientation(1,0,1);
 776       mVFMapper->Update();
 777       // put the vector field between the image aSpacingnd the camera
 778       if (Renderer->GetActiveCamera()->GetPosition()[1] > this->Slice)
 779         mVFActor->SetPosition(0,ImageActor->GetBounds()[3]+2,0);
 780       else
 781         mVFActor->SetPosition(0,ImageActor->GetBounds()[2]-2,0);
 782     }
 783     if (mOverlay && mOverlayActor->GetVisibility()) {
 784       int overExtent[6];
 785       ComputeOverlayDisplayedExtent(w_ext[0], w_ext[1], this->Slice, this->Slice, w_ext[4], w_ext[5],overExtent);
 786       mOverlayActor->SetDisplayExtent(overExtent);
 787       if (Renderer->GetActiveCamera()->GetPosition()[1] > this->Slice)
 788         mOverlayActor->SetPosition(0,1,0);
 789       else
 790         mOverlayActor->SetPosition(0,-1,0);
 791     }
 792     if (mFusion && mFusionActor->GetVisibility()) {
 793       int fusExtent[6];
 794       ComputeFusionDisplayedExtent(w_ext[0], w_ext[1], this->Slice, this->Slice, w_ext[4], w_ext[5],fusExtent);
 795       mFusionActor->SetDisplayExtent(fusExtent);
 796       if (Renderer->GetActiveCamera()->GetPosition()[1] > this->Slice)
 797         mFusionActor->SetPosition(0,1.5,0);
 798       else
 799         mFusionActor->SetPosition(0,-1.5,0);
 800     }
 801     if (mLandActor) {
 802       if (mClipBox) {
 803         double bounds [6];
 804         bounds[0] = ImageActor->GetBounds()[0];
 805         bounds[1] = ImageActor->GetBounds()[1];
 806         bounds[2] = ImageActor->GetBounds()[2]-fabs(0.5/this->GetInput()->GetSpacing()[1]);
 807         bounds[3] = ImageActor->GetBounds()[3]+fabs(0.5/this->GetInput()->GetSpacing()[1]);
 808         bounds[4] = ImageActor->GetBounds()[4];
 809         bounds[5] = ImageActor->GetBounds()[5];
 810         mClipBox->SetBounds(bounds);
 811         UpdateLandmarks();
 812       }
 813       if (Renderer->GetActiveCamera()->GetPosition()[1] > this->Slice)
 814         mLandActor->SetPosition(0,1.5,0);
 815       else
 816         mLandActor->SetPosition(0,-1.5,0);
 817     }
 818     break;
 819
 820   case vtkImageViewer2::SLICE_ORIENTATION_YZ:
 821     this->ImageActor->SetDisplayExtent(
 822                                        this->Slice, this->Slice, w_ext[2], w_ext[3], w_ext[4], w_ext[5]);
 823     if (mVF && mVFActor->GetVisibility()) {
 824       int vfExtent[6];
 825       ComputeVFDisplayedExtent(this->Slice, this->Slice, w_ext[2], w_ext[3], w_ext[4], w_ext[5],vfExtent);
 826       mVOIFilter->SetVOI(vfExtent);
 827       mGlyphFilter->SetOrientation(0,1,1);
 828       mVFMapper->Update();
 829       // put the vector field between the image and the camera
 830       if (Renderer->GetActiveCamera()->GetPosition()[0] > this->Slice)
 831         mVFActor->SetPosition(ImageActor->GetBounds()[1]+2,0,0);
 832       else
 833         mVFActor->SetPosition(ImageActor->GetBounds()[0]-2,0,0);
 834     }
 835     if (mOverlay && mOverlayActor->GetVisibility()) {
 836       int overExtent[6];
 837       ComputeOverlayDisplayedExtent(this->Slice, this->Slice, w_ext[2], w_ext[3], w_ext[4], w_ext[5],overExtent);
 838       mOverlayActor->SetDisplayExtent(overExtent);
 839       if (Renderer->GetActiveCamera()->GetPosition()[0] > this->Slice)
 840         mOverlayActor->SetPosition(1,0,0);
 841       else
 842         mOverlayActor->SetPosition(-1,0,0);
 843     }
 844     if (mFusion && mFusionActor->GetVisibility()) {
 845       int fusExtent[6];
 846       ComputeFusionDisplayedExtent(this->Slice, this->Slice, w_ext[2], w_ext[3], w_ext[4], w_ext[5],fusExtent);
 847       mFusionActor->SetDisplayExtent(fusExtent);
 848       if (Renderer->GetActiveCamera()->GetPosition()[0] > this->Slice)
 849         mFusionActor->SetPosition(1.5,0,0);
 850       else
 851         mFusionActor->SetPosition(-1.5,0,0);
 852     }
 853     if (mLandActor) {
 854       if (mClipBox) {
 855         double bounds [6];
 856         bounds[0] = ImageActor->GetBounds()[0]-fabs(0.5/this->GetInput()->GetSpacing()[0]);
 857         bounds[1] = ImageActor->GetBounds()[1]+fabs(0.5/this->GetInput()->GetSpacing()[0]);
 858         bounds[2] = ImageActor->GetBounds()[2];
 859         bounds[3] = ImageActor->GetBounds()[3];
 860         bounds[4] = ImageActor->GetBounds()[4];
 861         bounds[5] = ImageActor->GetBounds()[5];
 862         mClipBox->SetBounds(bounds);
 863         UpdateLandmarks();
 864       }
 865       if (Renderer->GetActiveCamera()->GetPosition()[0] > this->Slice)
 866         mLandActor->SetPosition(1.5,0,0);
 867       else
 868         mLandActor->SetPosition(-1.5,0,0);
 869     }
 870     break;
 871   }
 872
 873   // Figure out the correct clipping range
 874
 875   if (this->Renderer) {
 876     if (this->InteractorStyle &&
 877         this->InteractorStyle->GetAutoAdjustCameraClippingRange()) {
 878       this->Renderer->ResetCameraClippingRange();
 879     } else {
 880       vtkCamera *cam = this->Renderer->GetActiveCamera();
 881       if (cam) {
 882         double bounds[6];
 883         this->ImageActor->GetBounds(bounds);
 884         double spos = (double)bounds[this->SliceOrientation * 2];
 885         double cpos = (double)cam->GetPosition()[this->SliceOrientation];
 886         double range = fabs(spos - cpos);
 887         double *spacing = input->GetSpacing();
 888         double avg_spacing =
 889           ((double)spacing[0] + (double)spacing[1] + (double)spacing[2]) / 3.0;
 890         cam->SetClippingRange(
 891                               range - avg_spacing * 3.0, range + avg_spacing * 3.0);
 892       }
 893     }
 894   }
 895 }
 896 //----------------------------------------------------------------------------
 897
 898
 899 //----------------------------------------------------------------------------
 900 void vvSlicer::ComputeVFDisplayedExtent(int x1,int x2,int y1,int y2,int z1,int z2,int vfExtent[6])
 901 {
 902   vtkImageData* image=this->GetInput();
 903   vfExtent[0] = (( image->GetOrigin()[0] + x1*image->GetSpacing()[0] ) - mVF->GetOrigin()[0]) /
 904     mVF->GetSpacing()[0];
 905   vfExtent[1] = (( image->GetOrigin()[0] + x2*image->GetSpacing()[0] ) - mVF->GetOrigin()[0]) /
 906     mVF->GetSpacing()[0];
 907   vfExtent[2] = (( image->GetOrigin()[1] + y1*image->GetSpacing()[1] ) - mVF->GetOrigin()[1]) /
 908     mVF->GetSpacing()[1];
 909   vfExtent[3] = (( image->GetOrigin()[1] + y2*image->GetSpacing()[1] ) - mVF->GetOrigin()[1]) /
 910     mVF->GetSpacing()[1];
 911   vfExtent[4] = (( image->GetOrigin()[2] + z1*image->GetSpacing()[2] ) - mVF->GetOrigin()[2]) /
 912     mVF->GetSpacing()[2];
 913   vfExtent[5] = (( image->GetOrigin()[2] + z2*image->GetSpacing()[2] ) - mVF->GetOrigin()[2]) /
 914     mVF->GetSpacing()[2];
 915
 916   ClipDisplayedExtent(vfExtent,mVOIFilter->GetInput()->GetWholeExtent());
 917 }
 918 //----------------------------------------------------------------------------
 919
 920
 921 //----------------------------------------------------------------------------
 922 void vvSlicer::ComputeOverlayDisplayedExtent(int x1,int x2,int y1,int y2,int z1,int z2,int overExtent[6])
 923 {
 924   vtkImageData* image=this->GetInput();
 925   overExtent[0] = (( image->GetOrigin()[0] + x1*image->GetSpacing()[0] ) - mOverlay->GetOrigin()[0]) /
 926     mOverlay->GetSpacing()[0];
 927   overExtent[1] = (( image->GetOrigin()[0] + x2*image->GetSpacing()[0] ) - mOverlay->GetOrigin()[0]) /
 928     mOverlay->GetSpacing()[0];
 929   overExtent[2] = (( image->GetOrigin()[1] + y1*image->GetSpacing()[1] ) - mOverlay->GetOrigin()[1]) /
 930     mOverlay->GetSpacing()[1];
 931   overExtent[3] = (( image->GetOrigin()[1] + y2*image->GetSpacing()[1] ) - mOverlay->GetOrigin()[1]) /
 932     mOverlay->GetSpacing()[1];
 933   overExtent[4] = (( image->GetOrigin()[2] + z1*image->GetSpacing()[2] ) - mOverlay->GetOrigin()[2]) /
 934     mOverlay->GetSpacing()[2];
 935   overExtent[5] = (( image->GetOrigin()[2] + z2*image->GetSpacing()[2] ) - mOverlay->GetOrigin()[2]) /
 936     mOverlay->GetSpacing()[2];
 937   ClipDisplayedExtent(overExtent, mOverlayMapper->GetInput()->GetWholeExtent());
 938 }
 939 //----------------------------------------------------------------------------
 940
 941
 942 //----------------------------------------------------------------------------
 943 void vvSlicer::ComputeFusionDisplayedExtent(int x1,int x2,int y1,int y2,int z1,int z2,int fusExtent[6])
 944 {
 945   vtkImageData* image=this->GetInput();
 946   fusExtent[0] = (( image->GetOrigin()[0] + x1*image->GetSpacing()[0] ) - mFusion->GetOrigin()[0]) /
 947     mFusion->GetSpacing()[0];
 948   fusExtent[1] = (( image->GetOrigin()[0] + x2*image->GetSpacing()[0] ) - mFusion->GetOrigin()[0]) /
 949     mFusion->GetSpacing()[0];
 950   fusExtent[2] = (( image->GetOrigin()[1] + y1*image->GetSpacing()[1] ) - mFusion->GetOrigin()[1]) /
 951     mFusion->GetSpacing()[1];
 952   fusExtent[3] = (( image->GetOrigin()[1] + y2*image->GetSpacing()[1] ) - mFusion->GetOrigin()[1]) /
 953     mFusion->GetSpacing()[1];
 954   fusExtent[4] = (( image->GetOrigin()[2] + z1*image->GetSpacing()[2] ) - mFusion->GetOrigin()[2]) /
 955     mFusion->GetSpacing()[2];
 956   fusExtent[5] = (( image->GetOrigin()[2] + z2*image->GetSpacing()[2] ) - mFusion->GetOrigin()[2]) /
 957     mFusion->GetSpacing()[2];
 958   ClipDisplayedExtent(fusExtent, mFusionMapper->GetInput()->GetWholeExtent());
 959 }
 960 //----------------------------------------------------------------------------
 961
 962
 963 //----------------------------------------------------------------------------
 964 void vvSlicer::ClipDisplayedExtent(int extent[6], int refExtent[6])
 965 {
 966   bool out = false;
 967   int maxBound = 6;
 968
 969   //2D overlay on 3D image specific case
 970   if (refExtent[4] == refExtent[5]) {
 971     maxBound = 4;
 972     extent[4] = refExtent[4];
 973     extent[5] = refExtent[5];
 974   }
 975
 976   for (int i = 0; i < maxBound; i = i+2) {
 977     //if we are totally outside the image
 978     if ( extent[i] > refExtent[i+1] || extent[i+1] < refExtent[i] ) {
 979       out = true;
 980       break;
 981     }
 982     //crop to the limit of the image
 983     extent[i] = (extent[i] > refExtent[i]) ? extent[i] : refExtent[i];
 984     extent[i] = (extent[i] < refExtent[i+1]) ? extent[i] : refExtent[i+1];
 985     extent[i+1] = (extent[i+1] > refExtent[i]) ? extent[i+1] : refExtent[i];
 986     extent[i+1] = (extent[i+1] < refExtent[i+1]) ? extent[i+1] : refExtent[i+1];
 987   }
 988   if (out)
 989     for (int i = 0; i < maxBound; i = i+2) {
 990       extent[i] = refExtent[i];
 991       extent[i+1] = refExtent[i];
 992     }
 993 }
 994 //----------------------------------------------------------------------------
 995
 996
 997 //----------------------------------------------------------------------------
 998 void vvSlicer::UpdateOrientation()
 999 {
1000   // Set the camera position
1001   vtkCamera *cam = this->Renderer ? this->Renderer->GetActiveCamera() : NULL;
1002   if (cam) {
1003     switch (this->SliceOrientation) {
1004     case vtkImageViewer2::SLICE_ORIENTATION_XY:
1005       cam->SetFocalPoint(0,0,0);
1006       cam->SetPosition(0,0,-1); // -1 if medical ?
1007       cam->SetViewUp(0,-1,0);
1008       break;
1009
1010     case vtkImageViewer2::SLICE_ORIENTATION_XZ:
1011       cam->SetFocalPoint(0,0,0);
1012       cam->SetPosition(0,-1,0); // 1 if medical ?
1013       cam->SetViewUp(0,0,1);
1014       break;
1015
1016     case vtkImageViewer2::SLICE_ORIENTATION_YZ:
1017       cam->SetFocalPoint(0,0,0);
1018       cam->SetPosition(-1,0,0); // -1 if medical ?
1019       cam->SetViewUp(0,0,1);
1020       break;
1021     }
1022   }
1023 }
1024 //----------------------------------------------------------------------------
1025
1026
1027 //----------------------------------------------------------------------------
1028 void vvSlicer::SetOpacity(double s)
1029 {
1030   this->GetImageActor()->SetOpacity(s);
1031 }
1032 //----------------------------------------------------------------------------
1033
1034
1035 //----------------------------------------------------------------------------
1036 void vvSlicer::SetRenderWindow(int orientation, vtkRenderWindow * rw)
1037 {
1038   this->Superclass::SetRenderWindow(rw);
1039   this->SetupInteractor(rw->GetInteractor());
1040   ca->SetImageActor(this->GetImageActor());
1041   ca->SetWindowLevel(this->GetWindowLevel());
1042   ca->SetText(2, "<slice>");
1043   ca->SetText(3, "<window>\n<level>");
1044
1045   double bounds[6];
1046   double max = 65000;
1047
1048   bounds[0] = -max;
1049   bounds[1] = max;
1050   bounds[2] = -max;
1051   bounds[3] = max;
1052   bounds[4] = -max;
1053   bounds[5] = max;
1054
1055   crossCursor->SetModelBounds(bounds);
1056   this->GetRenderer()->AddActor(pdmA);
1057   this->GetRenderer()->AddActor(ca);
1058   this->GetRenderer()->ResetCamera();
1059
1060   //this is just a mapping between the labeling of the orientations presented to the user and
1061   //the one used by vtk
1062   SetSliceOrientation(2-(orientation%3));
1063   ResetCamera();
1064 }
1065 //----------------------------------------------------------------------------
1066
1067
1068 //----------------------------------------------------------------------------
1069 void vvSlicer::ResetCamera()
1070 {
1071   this->GetRenderer()->ResetCamera();
1072 }
1073 //----------------------------------------------------------------------------
1074
1075
1076 //----------------------------------------------------------------------------
1077 void vvSlicer::SetDisplayMode(bool i)
1078 {
1079   this->GetImageActor()->SetVisibility(i);
1080   this->GetAnnotation()->SetVisibility(i);
1081   this->GetRenderer()->SetDraw(i);
1082   if (mLandActor)
1083     mLandActor->SetVisibility(i);
1084   pdmA->SetVisibility(i);
1085   if (i)
1086     UpdateDisplayExtent();
1087 }
1088 //----------------------------------------------------------------------------
1089
1090
1091 //----------------------------------------------------------------------------
1092 void vvSlicer::FlipHorizontalView()
1093 {
1094   vtkCamera *cam = this->Renderer ? this->Renderer->GetActiveCamera() : NULL;
1095   if (cam) {
1096     double *position = cam->GetPosition();
1097     switch (this->SliceOrientation) {
1098     case vtkImageViewer2::SLICE_ORIENTATION_XY:
1099       cam->SetPosition(position[0],position[1],-position[2]);
1100       break;
1101
1102     case vtkImageViewer2::SLICE_ORIENTATION_XZ:
1103       cam->SetPosition(position[0],-position[1],position[2]);
1104       break;
1105
1106     case vtkImageViewer2::SLICE_ORIENTATION_YZ:
1107       cam->SetPosition(-position[0],position[1],position[2]);
1108       break;
1109     }
1110     this->Renderer->ResetCameraClippingRange();
1111     this->UpdateDisplayExtent();
1112   }
1113 }
1114 //----------------------------------------------------------------------------
1115
1116
1117 //----------------------------------------------------------------------------
1118 void vvSlicer::FlipVerticalView()
1119 {
1120   vtkCamera *cam = this->Renderer ? this->Renderer->GetActiveCamera() : NULL;
1121   if (cam) {
1122     FlipHorizontalView();
1123     double *viewup = cam->GetViewUp();
1124     cam->SetViewUp(-viewup[0],-viewup[1],-viewup[2]);
1125     this->UpdateDisplayExtent();
1126   }
1127 }
1128 //----------------------------------------------------------------------------
1129
1130
1131 //----------------------------------------------------------------------------
1132 void vvSlicer::SetColorWindow(double window)
1133 {
1134   vtkLookupTable* LUT = static_cast<vtkLookupTable*>(this->GetWindowLevel()->GetLookupTable());
1135   if ( LUT ) {
1136     double level = this->GetWindowLevel()->GetLevel();
1137     LUT->SetTableRange(level-fabs(window)/4,level+fabs(window)/4);
1138     LUT->Build();
1139   }
1140   this->vtkImageViewer2::SetColorWindow(window);
1141 }
1142 //----------------------------------------------------------------------------
1143
1144
1145 //----------------------------------------------------------------------------
1146 void vvSlicer::SetColorLevel(double level)
1147 {
1148   vtkLookupTable* LUT = static_cast<vtkLookupTable*>(this->GetWindowLevel()->GetLookupTable());
1149   if ( LUT ) {
1150     double window = this->GetWindowLevel()->GetWindow();
1151     LUT->SetTableRange(level-fabs(window)/4,level+fabs(window)/4);
1152     LUT->Build();
1153   }
1154   this->vtkImageViewer2::SetColorLevel(level);
1155 }
1156 //----------------------------------------------------------------------------
1157
1158 //----------------------------------------------------------------------------
1159 // Returns the min an the max value in a 41x41 region around the mouse pointer
1160 void vvSlicer::GetExtremasAroundMousePointer(double & min, double & max)
1161 {
1162   //Get mouse pointer position in view coordinates
1163   double fLocalExtents[6];
1164   for(int i=0; i<3; i++) {
1165     fLocalExtents[i*2  ] = mCurrent[i];
1166     fLocalExtents[i*2+1] = mCurrent[i];
1167   }
1168   this->Renderer->WorldToView(fLocalExtents[0], fLocalExtents[2], fLocalExtents[4]);
1169   this->Renderer->WorldToView(fLocalExtents[1], fLocalExtents[3], fLocalExtents[5]);
1170   for(int i=0; i<3; i++) {
1171     if (i!=SliceOrientation) { //SR: assumes that SliceOrientation is valid in ViewCoordinates (???)
1172       fLocalExtents[i*2  ] -= 0.2;
1173       fLocalExtents[i*2+1] += 0.2;
1174     }
1175   }
1176   this->Renderer->ViewToWorld(fLocalExtents[0], fLocalExtents[2], fLocalExtents[4]);
1177   this->Renderer->ViewToWorld(fLocalExtents[1], fLocalExtents[3], fLocalExtents[5]);
1178
1179   //Convert to image pixel coordinates (rounded)
1180   int iLocalExtents[6];
1181   for(int i=0; i<3; i++) {
1182     fLocalExtents[i*2  ] = (fLocalExtents[i*2  ] - this->GetInput()->GetOrigin()[i])/this->GetInput()->GetSpacing()[i];
1183     fLocalExtents[i*2+1] = (fLocalExtents[i*2+1] - this->GetInput()->GetOrigin()[i])/this->GetInput()->GetSpacing()[i];
1184
1185     iLocalExtents[i*2  ] = lrint(fLocalExtents[i*2  ]);
1186     iLocalExtents[i*2+1] = lrint(fLocalExtents[i*2+1]);
1187
1188     if(iLocalExtents[i*2  ]>iLocalExtents[i*2+1])
1189       std::swap(iLocalExtents[i*2], iLocalExtents[i*2+1]);
1190   }
1191
1192   vtkSmartPointer<vtkExtractVOI> voiFilter = vtkSmartPointer<vtkExtractVOI>::New();
1193   voiFilter->SetInput(this->GetInput());
1194   voiFilter->SetVOI(iLocalExtents);
1195   voiFilter->Update();
1196   if (!voiFilter->GetOutput()->GetNumberOfPoints()) {
1197     min = 0;
1198     max = 0;
1199     return;
1200   }
1201
1202   vtkSmartPointer<vtkImageAccumulate> accFilter = vtkSmartPointer<vtkImageAccumulate>::New();
1203   accFilter->SetInput(voiFilter->GetOutput());
1204   accFilter->Update();
1205
1206   min = *(accFilter->GetMin());
1207   max = *(accFilter->GetMax());
1208 }
1209 //----------------------------------------------------------------------------
1210
1211 //----------------------------------------------------------------------------
1212 double vvSlicer::GetScalarComponentAsDouble(vtkImageData *image, int X, double Y, double Z, int &ix, int &iy, int &iz, int component)
1213 {
1214   ix = lrint(X);
1215   iy = lrint(Y);
1216   iz = lrint(Z);
1217   image->SetUpdateExtent(ix, ix, iy, iy, iz, iz);
1218   image->Update();
1219   return image->GetScalarComponentAsDouble(ix, iy, iz, component);
1220 }
1221 //----------------------------------------------------------------------------
1222
1223 //----------------------------------------------------------------------------
1224 void vvSlicer::Render()
1225 {
1226   if (this->GetWindowLevel()->GetLookupTable() && !this->mOverlay && !this->mFusion) {
1227     legend->SetLookupTable(this->GetWindowLevel()->GetLookupTable());
1228     legend->SetVisibility(1);
1229   } else legend->SetVisibility(0);
1230
1231   if (ca->GetVisibility()) {
1232     std::string worldPos = "";
1233     std::stringstream world1;
1234     std::stringstream world2;
1235     std::stringstream world3;
1236     world1 << (int)mCurrent[0];
1237     world2 << (int)mCurrent[1];
1238     world3 << (int)mCurrent[2];
1239     double X = (mCurrent[0] - this->GetInput()->GetOrigin()[0])/this->GetInput()->GetSpacing()[0];
1240     double Y = (mCurrent[1] - this->GetInput()->GetOrigin()[1])/this->GetInput()->GetSpacing()[1];
1241     double Z = (mCurrent[2] - this->GetInput()->GetOrigin()[2])/this->GetInput()->GetSpacing()[2];
1242
1243     if (pdmA->GetVisibility()) {
1244       double x = mCursor[0];
1245       double y = mCursor[1];
1246       double z = mCursor[2];
1247       double xCursor = (x - this->GetInput()->GetOrigin()[0])/this->GetInput()->GetSpacing()[0];
1248       double yCursor = (y - this->GetInput()->GetOrigin()[1])/this->GetInput()->GetSpacing()[1];
1249       double zCursor = (z - this->GetInput()->GetOrigin()[2])/this->GetInput()->GetSpacing()[2];
1250
1251       if (xCursor >= this->GetImageActor()->GetDisplayExtent()[0] &&
1252           xCursor < this->GetImageActor()->GetDisplayExtent()[1]+1 &&
1253           yCursor >= this->GetImageActor()->GetDisplayExtent()[2] &&
1254           yCursor < this->GetImageActor()->GetDisplayExtent()[3]+1 &&
1255           zCursor >= this->GetImageActor()->GetDisplayExtent()[4] &&
1256           zCursor < this->GetImageActor()->GetDisplayExtent()[5]+1 ) {
1257         vtkRenderer * renderer = this->Renderer;
1258
1259         renderer->WorldToView(x,y,z);
1260         renderer->ViewToNormalizedViewport(x,y,z);
1261         renderer->NormalizedViewportToViewport(x,y);
1262         renderer->ViewportToNormalizedDisplay(x,y);
1263         renderer->NormalizedDisplayToDisplay(x,y);
1264         crossCursor->SetFocalPoint(x,y,z);
1265       } else
1266         crossCursor->SetFocalPoint(-1,-1,z);
1267     }
1268
1269     if (X >= this->GetInput()->GetWholeExtent()[0] &&
1270         X <= this->GetInput()->GetWholeExtent()[1] &&
1271         Y >= this->GetInput()->GetWholeExtent()[2] &&
1272         Y <= this->GetInput()->GetWholeExtent()[3] &&
1273         Z >= this->GetInput()->GetWholeExtent()[4] &&
1274         Z <= this->GetInput()->GetWholeExtent()[5]) {
1275       int ix, iy, iz;
1276       double value = this->GetScalarComponentAsDouble(this->GetInput(), X, Y, Z, ix, iy, iz);
1277
1278       std::stringstream pixel1;
1279       std::stringstream pixel2;
1280       std::stringstream pixel3;
1281       std::stringstream temps;
1282       pixel1 << ix;
1283       pixel2 << iy;
1284       pixel3 << iz;
1285       temps << mCurrentTSlice;
1286
1287       std::stringstream val;
1288       val << value;
1289       worldPos += "data value : " + val.str();
1290       worldPos += "\n mm : " + world1.str() + " " + world2.str() + " " +
1291         world3.str() + " " + temps.str();
1292       worldPos += "\n pixel : " + pixel1.str() + " " + pixel2.str() + " " +
1293         pixel3.str() + " " + temps.str();
1294     }
1295     ca->SetText(1,worldPos.c_str());
1296   }
1297   if (mOverlay && mOverlayActor->GetVisibility()) {
1298     mOverlayMapper->SetWindow(this->GetColorWindow());
1299     mOverlayMapper->SetLevel(this->GetColorLevel());
1300     mOverlayMapper->GetOutput()->SetUpdateExtent(mOverlayActor->GetDisplayExtent());
1301     mOverlayMapper->GetOutput()->Update();
1302     mOverlayMapper->Update();
1303   }
1304   if (mLandMapper)
1305     UpdateLandmarks();
1306   //this->Superclass::Render();
1307   this->GetRenderWindow()->Render();
1308 }
1309 //----------------------------------------------------------------------------
1310
1311
1312 //----------------------------------------------------------------------------
1313 void vvSlicer::UpdateCursorPosition()
1314 {
1315   if (this->GetImageActor()->GetVisibility()) {
1316     pdmA->SetVisibility(true);
1317     mCursor[0] = mCurrent[0];
1318     mCursor[1] = mCurrent[1];
1319     mCursor[2] = mCurrent[2];
1320     mCursor[3] = mCurrentTSlice;
1321   }
1322 }
1323 //----------------------------------------------------------------------------
1324
1325
1326 //----------------------------------------------------------------------------
1327 void vvSlicer::UpdateLandmarks()
1328 {
1329   vtkPolyData *pd = static_cast<vtkPolyData*>(mLandClipper->GetInput());
1330   if (pd->GetPoints()) {
1331     mLandGlyph->SetRange(0,1);
1332     mLandGlyph->Modified();
1333     mLandGlyph->Update();
1334
1335     mClipBox->Modified();
1336     mLandClipper->Update();
1337     mLandMapper->Update();
1338   }
1339
1340 }
1341 //----------------------------------------------------------------------------
1342
1343
1344 //----------------------------------------------------------------------------
1345 void vvSlicer::SetSlice(int slice)
1346 {
1347   int *range = this->GetSliceRange();
1348   if (range) {
1349     if (slice < range[0]) {
1350       slice = range[0];
1351     } else if (slice > range[1]) {
1352       slice = range[1];
1353     }
1354   }
1355
1356   if (this->Slice == slice) {
1357     return;
1358   }
1359
1360   this->Slice = slice;
1361   SetContourSlice();
1362   this->Modified();
1363   this->UpdateDisplayExtent();
1364
1365   // Seems to work without this line
1366   //  this->Render();
1367 }
1368 //----------------------------------------------------------------------------
1369
1370
1371 //----------------------------------------------------------------------------
1372 void vvSlicer::SetContourSlice()
1373 {
1374   if (mSurfaceCutActors.size() > 0)
1375     for (std::vector<vvMeshActor*>::iterator i=mSurfaceCutActors.begin();
1376          i!=mSurfaceCutActors.end(); i++)
1377       (*i)->SetCutSlice((this->Slice)*this->GetImage()->GetSpacing()[this->SliceOrientation]+
1378                         this->GetImage()->GetOrigin()[this->SliceOrientation]);
1379 }
1380 //----------------------------------------------------------------------------
1381
1382
1383 //----------------------------------------------------------------------------
1384 void vvSlicer::ForceUpdateDisplayExtent()
1385 {
1386   this->UpdateDisplayExtent();
1387 }
1388 //----------------------------------------------------------------------------
1389
1390
1391 //----------------------------------------------------------------------------
1392 int* vvSlicer::GetDisplayExtent()
1393 {
1394   return this->GetImageActor()->GetDisplayExtent();
1395 }
1396 //----------------------------------------------------------------------------
1397
1398
1399 //----------------------------------------------------------------------------
1400 void vvSlicer::PrintSelf(ostream& os, vtkIndent indent)
1401 {
1402   this->Superclass::PrintSelf(os, indent);
1403 }
1404 //----------------------------------------------------------------------------
1405
1406 //----------------------------------------------------------------------------
1407 void vvSlicer::SetVFColor(double r, double g, double b)
1408 {
1409   double mVFColorHSV[3];
1410   mVFColor[0] = r;
1411   mVFColor[1] = g;
1412   mVFColor[2] = b;
1413
1414   vtkMath::RGBToHSV(mVFColor, mVFColorHSV);
1415   mVFColorLUT->SetHueRange(mVFColorHSV[0], mVFColorHSV[0]);
1416   mVFColorLUT->SetSaturationRange(mVFColorHSV[1],mVFColorHSV[1]);
1417   mVFColorLUT->SetValueRange(mVFColorHSV[2], mVFColorHSV[2]);
1418
1419   this->Render();
1420 }
1421