src/VTKViewer/VTKViewer_Actor.cxx

   1 // Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 //  SALOME OBJECT : implementation of interactive object visualization for OCC and VTK viewers
  24 //  File   : SALOME_Actor.cxx
  25 //  Author : Nicolas REJNERI
  26
  27 /*!
  28   \class SALOME_Actor SALOME_Actor.h
  29   \brief Abstract class of SALOME Objects in VTK.
  30 */
  31
  32 #include "VTKViewer_Actor.h"
  33
  34 #include "VTKViewer_Transform.h"
  35 #include "VTKViewer_TransformFilter.h"
  36 #include "VTKViewer_GeometryFilter.h"
  37
  38 // VTK Includes
  39 #include <vtkCell.h>
  40 #include <vtkPolyData.h>
  41 #include <vtkObjectFactory.h>
  42 #include <vtkDataSetMapper.h>
  43 #include <vtkPolyDataMapper.h>
  44 #include <vtkRenderer.h>
  45 #include <vtkPassThroughFilter.h>
  46
  47 #if defined __GNUC__
  48   #if __GNUC__ == 2
  49     #define __GNUC_2__
  50   #endif
  51 #endif
  52
  53 int VTKViewer_POINT_SIZE = 5;
  54 int VTKViewer_LINE_WIDTH = 3;
  55
  56
  57 vtkStandardNewMacro(VTKViewer_Actor);
  58
  59 /*!
  60   Constructor
  61 */
  62 VTKViewer_Actor
  63 ::VTKViewer_Actor():
  64   myOpacity(1.0),
  65   myIsHighlighted(false),
  66   myIsPreselected(false),
  67   myRepresentation(VTKViewer::Representation::Surface),
  68   myDisplayMode(1),
  69   myProperty(vtkProperty::New()),
  70   PreviewProperty(NULL),
  71   myIsInfinite(false),
  72   myIsResolveCoincidentTopology(true),
  73   myStoreMapping(false),
  74   myGeomFilter(VTKViewer_GeometryFilter::New()),
  75   myTransformFilter(VTKViewer_TransformFilter::New())
  76 {
  77   vtkMapper::GetResolveCoincidentTopologyPolygonOffsetParameters(myPolygonOffsetFactor,
  78                                                                  myPolygonOffsetUnits);
  79
  80   for(int i = 0; i < 6; i++)
  81     myPassFilter.push_back(vtkPassThroughFilter::New());
  82 }
  83
  84 /*!
  85   Destructor
  86 */
  87 VTKViewer_Actor
  88 ::~VTKViewer_Actor()
  89 {
  90   SetPreviewProperty(NULL);
  91
  92   myGeomFilter->Delete();
  93
  94   myTransformFilter->Delete();
  95
  96   for(int i = 0, iEnd = myPassFilter.size(); i < iEnd; i++)
  97     if(myPassFilter[i])
  98       myPassFilter[i]->Delete();
  99
 100   myProperty->Delete();
 101 }
 102
 103 /*!
 104   \return name
 105 */
 106 const char*
 107 VTKViewer_Actor
 108 ::getName()
 109 {
 110   return myName.c_str();
 111 }
 112
 113 /*!
 114   Sets name
 115   \param theName - new name
 116 */
 117 void
 118 VTKViewer_Actor
 119 ::setName(const char* theName)
 120 {
 121   myName = theName;
 122 }
 123
 124 /*!
 125   To publish the actor an all its internal devices
 126 */
 127 void
 128 VTKViewer_Actor
 129 ::AddToRender(vtkRenderer* theRenderer)
 130 {
 131   theRenderer->AddActor(this);
 132 }
 133
 134 /*!
 135   To remove the actor an all its internal devices
 136 */
 137 void
 138 VTKViewer_Actor
 139 ::RemoveFromRender(vtkRenderer* theRenderer)
 140 {
 141   theRenderer->RemoveActor(this);
 142 }
 143
 144 /*!
 145   Used to obtain all dependent actors
 146 */
 147 void
 148 VTKViewer_Actor
 149 ::GetChildActors(vtkActorCollection*)
 150 {}
 151
 152 /*!
 153   Apply view transformation
 154   \param theTransform - view transformation
 155 */
 156 void
 157 VTKViewer_Actor
 158 ::SetTransform(VTKViewer_Transform* theTransform)
 159 {
 160   myTransformFilter->SetTransform(theTransform);
 161 }
 162
 163
 164 /*!
 165   To insert some additional filters and then sets the given #vtkMapper
 166 */
 167 void
 168 VTKViewer_Actor
 169 ::SetMapper(vtkMapper* theMapper)
 170 {
 171   InitPipeLine(theMapper);
 172 }
 173
 174 /*!
 175   Initialization
 176 */
 177 void
 178 VTKViewer_Actor
 179 ::InitPipeLine(vtkMapper* theMapper)
 180 {
 181   if(theMapper){
 182     int anId = 0;
 183     myPassFilter[ anId ]->SetInput( theMapper->GetInput() );
 184     myPassFilter[ anId + 1]->SetInput( myPassFilter[ anId ]->GetOutput() );
 185
 186     anId++; // 1
 187     myGeomFilter->SetStoreMapping( myStoreMapping );
 188     myGeomFilter->SetInput( myPassFilter[ anId ]->GetOutput() );
 189
 190     anId++; // 2
 191     myPassFilter[ anId ]->SetInput( myGeomFilter->GetOutput() );
 192     myPassFilter[ anId + 1 ]->SetInput( myPassFilter[ anId ]->GetOutput() );
 193
 194     anId++; // 3
 195     myTransformFilter->SetInput( myPassFilter[ anId ]->GetPolyDataOutput() );
 196
 197     anId++; // 4
 198     myPassFilter[ anId ]->SetInput( myTransformFilter->GetOutput() );
 199     myPassFilter[ anId + 1 ]->SetInput( myPassFilter[ anId ]->GetOutput() );
 200
 201     anId++; // 5
 202     if(vtkDataSetMapper* aMapper = dynamic_cast<vtkDataSetMapper*>(theMapper)){
 203       aMapper->SetInput(myPassFilter[anId]->GetOutput());
 204     }else if(vtkPolyDataMapper* aMapper = dynamic_cast<vtkPolyDataMapper*>(theMapper)){
 205       aMapper->SetInput(myPassFilter[anId]->GetPolyDataOutput());
 206     }
 207   }
 208   Superclass::SetMapper(theMapper);
 209 }
 210
 211 /*!
 212   Renders actor
 213 */
 214 void
 215 VTKViewer_Actor
 216 ::Render(vtkRenderer *ren, vtkMapper* m)
 217 {
 218   if(vtkDataSet* aDataSet = GetInput()){
 219     static vtkFloatingPointType PERCENTS_OF_DETAILS = 0.50;
 220     vtkIdType aNbOfPoints = vtkIdType(aDataSet->GetNumberOfPoints()*PERCENTS_OF_DETAILS);
 221     if(aNbOfPoints > 0)
 222       SetNumberOfCloudPoints(aNbOfPoints);
 223   }
 224
 225   if(myIsResolveCoincidentTopology){
 226     int aResolveCoincidentTopology = vtkMapper::GetResolveCoincidentTopology();
 227     vtkFloatingPointType aFactor, aUnit;
 228     vtkMapper::GetResolveCoincidentTopologyPolygonOffsetParameters(aFactor,aUnit);
 229
 230     vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
 231     vtkMapper::SetResolveCoincidentTopologyPolygonOffsetParameters(myPolygonOffsetFactor,
 232                                                                    myPolygonOffsetUnits);
 233     Superclass::Render(ren,m);
 234
 235     vtkMapper::SetResolveCoincidentTopologyPolygonOffsetParameters(aFactor,aUnit);
 236     vtkMapper::SetResolveCoincidentTopology(aResolveCoincidentTopology);
 237   }else{
 238     Superclass::Render(ren,m);
 239   }
 240 }
 241
 242 /*!
 243   Set ResolveCoincidentTopology flag
 244   \param theIsResolve - new flag value
 245 */
 246 void
 247 VTKViewer_Actor
 248 ::SetResolveCoincidentTopology(bool theIsResolve)
 249 {
 250   myIsResolveCoincidentTopology = theIsResolve;
 251 }
 252
 253 /*!
 254   Set polygon offset parameters
 255   \param factor, units  - Opengl polygon offset parameters
 256 */
 257 void
 258 VTKViewer_Actor
 259 ::SetPolygonOffsetParameters(vtkFloatingPointType factor,
 260                              vtkFloatingPointType units)
 261 {
 262   myPolygonOffsetFactor = factor;
 263   myPolygonOffsetUnits = units;
 264 }
 265
 266 /*!
 267   Get polygon offset parameters
 268   \param factor, units  - Opengl polygon offset parameters
 269 */
 270 void
 271 VTKViewer_Actor
 272 ::GetPolygonOffsetParameters(vtkFloatingPointType& factor,
 273                              vtkFloatingPointType& units)
 274 {
 275   factor = myPolygonOffsetFactor;
 276   units = myPolygonOffsetUnits;
 277 }
 278
 279 /*!
 280   \return shrink factor
 281 */
 282 vtkFloatingPointType
 283 VTKViewer_Actor
 284 ::GetShrinkFactor()
 285 {
 286   return 1.0;
 287 }
 288
 289 /*!
 290   \return true if the actor is shrunkable
 291 */
 292 bool
 293 VTKViewer_Actor
 294 ::IsShrunkable()
 295 {
 296   return false;
 297 }
 298
 299 /*!
 300   \return true if the actor is shrunk
 301 */
 302 bool
 303 VTKViewer_Actor
 304 ::IsShrunk()
 305 {
 306   return false;
 307 }
 308
 309 /*!
 310   Insert shrink filter into pipeline
 311 */
 312 void
 313 VTKViewer_Actor
 314 ::SetShrink()
 315 {}
 316
 317 /*!
 318   Remove shrink filter from pipeline
 319 */
 320 void
 321 VTKViewer_Actor
 322 ::UnShrink()
 323 {}
 324
 325 /*!
 326   Allows to get initial #vtkDataSet
 327 */
 328 vtkDataSet*
 329 VTKViewer_Actor
 330 ::GetInput()
 331 {
 332   return myPassFilter.front()->GetOutput();
 333 }
 334
 335 /*!
 336   To calculatate last modified time
 337 */
 338 unsigned long int
 339 VTKViewer_Actor
 340 ::GetMTime()
 341 {
 342   unsigned long mTime = this->Superclass::GetMTime();
 343   unsigned long time = myTransformFilter->GetMTime();
 344   mTime = ( time > mTime ? time : mTime );
 345   if(vtkDataSet *aDataSet = dynamic_cast<vtkDataSet*>(myPassFilter[0]->GetInput())){ // bad usage of GetInput
 346     time = aDataSet->GetMTime();
 347     mTime = ( time > mTime ? time : mTime );
 348   }
 349   return mTime;
 350 }
 351
 352 /*!
 353   Set representation (VTK_SURFACE, VTK_POINTS, VTK_WIREFRAME and so on)
 354   param theMode - new mode
 355 */
 356 void
 357 VTKViewer_Actor
 358 ::SetRepresentation(int theMode)
 359 {
 360   using namespace VTKViewer::Representation;
 361   switch(myRepresentation){
 362   case Points :
 363   case Surface :
 364   case SurfaceWithEdges :
 365     myProperty->SetAmbient(GetProperty()->GetAmbient());
 366     myProperty->SetDiffuse(GetProperty()->GetDiffuse());
 367     myProperty->SetSpecular(GetProperty()->GetSpecular());
 368     break;
 369   }
 370
 371   switch(theMode){
 372   case Points :
 373   case Surface :
 374   case SurfaceWithEdges :
 375     GetProperty()->SetAmbient(myProperty->GetAmbient());
 376     GetProperty()->SetDiffuse(myProperty->GetDiffuse());
 377     GetProperty()->SetSpecular(myProperty->GetSpecular());
 378     break;
 379   default:
 380     GetProperty()->SetAmbient(1.0);
 381     GetProperty()->SetDiffuse(0.0);
 382     GetProperty()->SetSpecular(0.0);
 383   }
 384
 385   switch(theMode){
 386   case Insideframe :
 387     myGeomFilter->SetInside(true);
 388     myGeomFilter->SetWireframeMode(true);
 389     GetProperty()->SetRepresentation(VTK_WIREFRAME);
 390     break;
 391   case Points :
 392     GetProperty()->SetPointSize(VTKViewer_POINT_SIZE);
 393     GetProperty()->SetRepresentation(theMode);
 394     myGeomFilter->SetWireframeMode(false);
 395     myGeomFilter->SetInside(false);
 396     break;
 397   case Wireframe :
 398     GetProperty()->SetRepresentation(theMode);
 399     myGeomFilter->SetWireframeMode(true);
 400     myGeomFilter->SetInside(false);
 401     break;
 402   case Surface :
 403   case SurfaceWithEdges :
 404     GetProperty()->SetRepresentation(theMode);
 405     myGeomFilter->SetWireframeMode(false);
 406     myGeomFilter->SetInside(false);
 407     break;
 408   }
 409
 410   myRepresentation = theMode;
 411 }
 412
 413 /*!
 414   \return current representation mode
 415 */
 416 int
 417 VTKViewer_Actor
 418 ::GetRepresentation()
 419 {
 420   return myRepresentation;
 421 }
 422
 423 /*!
 424   Maps VTK index of a node to corresponding object index
 425 */
 426 int
 427 VTKViewer_Actor
 428 ::GetNodeObjId(int theVtkID)
 429 {
 430   return theVtkID;
 431 }
 432
 433 /*!
 434   Get coordinates of a node for given object index
 435 */
 436 vtkFloatingPointType*
 437 VTKViewer_Actor
 438 ::GetNodeCoord(int theObjID)
 439 {
 440   return GetInput()->GetPoint(theObjID);
 441 }
 442
 443 /*!
 444   Get corresponding #vtkCell for given object index
 445 */
 446 vtkCell*
 447 VTKViewer_Actor
 448 ::GetElemCell(int theObjID)
 449 {
 450   return GetInput()->GetCell(theObjID);
 451 }
 452
 453 /*!
 454   Maps VTK index of a cell to corresponding object index
 455 */
 456 int
 457 VTKViewer_Actor
 458 ::GetElemObjId(int theVtkID)
 459 {
 460   return theVtkID;
 461 }
 462
 463
 464 /*!
 465   \return object dimension. Virtual method should be redifined by derived classes
 466 */
 467 int
 468 VTKViewer_Actor
 469 ::GetObjDimension( const int theObjId )
 470 {
 471   if ( vtkCell* aCell = GetElemCell(theObjId) )
 472     return aCell->GetCellDimension();
 473   return 0;
 474 }
 475
 476 /*!
 477   Infinitive means actor without size (point for example),
 478   which is not taken into account in calculation of boundaries of the scene
 479 */
 480 void
 481 VTKViewer_Actor
 482 ::SetInfinitive(bool theIsInfinite)
 483 {
 484   myIsInfinite = theIsInfinite;
 485 }
 486
 487 /*!
 488   \return infinive flag
 489 */
 490 bool
 491 VTKViewer_Actor
 492 ::IsInfinitive()
 493 {
 494   if(myIsInfinite)
 495     return true;
 496
 497   static vtkFloatingPointType MAX_DISTANCE = 0.9*VTK_LARGE_FLOAT;
 498   vtkFloatingPointType aBounds[6];
 499   GetBounds(aBounds);
 500   for(int i = 0; i < 6; i++)
 501     if(fabs(aBounds[i]) > MAX_DISTANCE)
 502       return true;
 503
 504   static vtkFloatingPointType MIN_DISTANCE = 1.0/VTK_LARGE_FLOAT;
 505   if(GetLength() < MIN_DISTANCE)
 506     return true;
 507
 508   return false;
 509 }
 510
 511 /*!
 512   \return current bounding box
 513 */
 514 vtkFloatingPointType*
 515 VTKViewer_Actor
 516 ::GetBounds()
 517 {
 518   return Superclass::GetBounds();
 519 }
 520
 521
 522 /*!
 523   \return current bounding box
 524 */
 525 void
 526 VTKViewer_Actor
 527 ::GetBounds(vtkFloatingPointType theBounds[6])
 528 {
 529   Superclass::GetBounds(theBounds);
 530 }
 531
 532
 533 bool
 534 VTKViewer_Actor
 535 ::IsSetCamera() const
 536 {
 537   return false;
 538 }
 539
 540 bool
 541 VTKViewer_Actor
 542 ::IsResizable() const
 543 {
 544   return false;
 545 }
 546
 547 void
 548 VTKViewer_Actor
 549 ::SetSize( const vtkFloatingPointType )
 550 {}
 551
 552
 553 void
 554 VTKViewer_Actor
 555 ::SetCamera( vtkCamera* )
 556 {}
 557
 558
 559 void
 560 VTKViewer_Actor
 561 ::SetOpacity(vtkFloatingPointType theOpacity)
 562 {
 563   myOpacity = theOpacity;
 564   GetProperty()->SetOpacity(theOpacity);
 565 }
 566
 567 vtkFloatingPointType
 568 VTKViewer_Actor
 569 ::GetOpacity()
 570 {
 571   return myOpacity;
 572 }
 573
 574
 575 /*!
 576   Change color
 577 */
 578 void
 579 VTKViewer_Actor
 580 ::SetColor(vtkFloatingPointType r,
 581            vtkFloatingPointType g,
 582            vtkFloatingPointType b)
 583 {
 584   GetProperty()->SetColor(r,g,b);
 585 }
 586
 587 /*!
 588   Change color
 589 */
 590 void
 591 VTKViewer_Actor
 592 ::SetColor(const vtkFloatingPointType theRGB[3])
 593 {
 594   SetColor(theRGB[0],theRGB[1],theRGB[2]);
 595 }
 596
 597 /*!
 598   Get color
 599 */
 600 void
 601 VTKViewer_Actor
 602 ::GetColor(vtkFloatingPointType& r,
 603            vtkFloatingPointType& g,
 604            vtkFloatingPointType& b)
 605 {
 606   vtkFloatingPointType aColor[3];
 607   GetProperty()->GetColor(aColor);
 608   r = aColor[0];
 609   g = aColor[1];
 610   b = aColor[2];
 611 }
 612
 613
 614 /*!
 615   Change material
 616 */
 617 void
 618 VTKViewer_Actor
 619 ::SetMaterial(std::vector<vtkProperty*> theProps)
 620 {
 621 }
 622
 623 /*!
 624   Get current material
 625 */
 626 vtkProperty*
 627 VTKViewer_Actor
 628 ::GetMaterial()
 629 {
 630   return NULL;
 631 }
 632
 633 /*!
 634   \return display mode
 635 */
 636 int
 637 VTKViewer_Actor
 638 ::getDisplayMode()
 639 {
 640   return myDisplayMode;
 641 }
 642
 643 /*!
 644   Change display mode
 645 */
 646 void
 647 VTKViewer_Actor
 648 ::setDisplayMode(int theMode)
 649 {
 650   SetRepresentation(theMode + 1);
 651   myDisplayMode = GetRepresentation() - 1;
 652 }
 653
 654
 655 /*!
 656   \return true if the descendant of the VTKViewer_Actor will implement its own highlight or not
 657 */
 658 bool
 659 VTKViewer_Actor
 660 ::hasHighlight()
 661 {
 662   return false;
 663 }
 664
 665 /*!
 666   \return true if the VTKViewer_Actor is already highlighted
 667 */
 668 bool
 669 VTKViewer_Actor
 670 ::isHighlighted()
 671 {
 672   return myIsHighlighted;
 673 }
 674
 675 /*!
 676   \return true if the VTKViewer_Actor is already preselected
 677 */
 678 bool
 679 VTKViewer_Actor
 680 ::isPreselected()
 681 {
 682   return myIsPreselected;
 683 }
 684
 685 /*!
 686   Set preselection mode
 687 */
 688 void
 689 VTKViewer_Actor
 690 ::SetPreSelected(bool thePreselect)
 691 {
 692   myIsPreselected = thePreselect;
 693 }
 694
 695 /*!
 696   Just to update visibility of the highlight devices
 697 */
 698 void
 699 VTKViewer_Actor
 700 ::highlight(bool theIsHighlight)
 701 {
 702   myIsHighlighted = theIsHighlight;
 703 }
 704
 705 /*!
 706  * On/Off representation 2D quadratic element as arked polygon
 707  */
 708 void VTKViewer_Actor::SetQuadraticArcMode(bool theFlag){
 709   myGeomFilter->SetQuadraticArcMode(theFlag);
 710 }
 711
 712 /*!
 713  * Return true if 2D quadratic element displayed as arked polygon
 714  */
 715 bool VTKViewer_Actor::GetQuadraticArcMode() const{
 716   return myGeomFilter->GetQuadraticArcMode();
 717 }
 718 /*!
 719  * Set Max angle for representation 2D quadratic element as arked polygon
 720  */
 721 void VTKViewer_Actor::SetQuadraticArcAngle(vtkFloatingPointType theMaxAngle){
 722   myGeomFilter->SetQuadraticArcAngle(theMaxAngle);
 723 }
 724
 725 /*!
 726  * Return Max angle of the representation 2D quadratic element as arked polygon
 727  */
 728 vtkFloatingPointType VTKViewer_Actor::GetQuadraticArcAngle() const{
 729   return myGeomFilter->GetQuadraticArcAngle();
 730 }
 731
 732 /*!
 733  * Return pointer to the dataset, which used to calculation of the bounding box of the actor.
 734  * By default it is the input dataset.
 735  */
 736 vtkDataSet* VTKViewer_Actor::GetHighlightedDataSet() {
 737   return GetInput();
 738 }
 739
 740
 741
 742 vtkCxxSetObjectMacro(VTKViewer_Actor,PreviewProperty,vtkProperty);