lib/maracasVisuLib/src/CutModule/interface/vtkInteractorStyleCutter.cxx

   1 /*=========================================================================
   2
   3   Program:   Visualization Toolkit
   4   Module:    $RCSfile: vtkInteractorStyleCutter.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2010/02/24 14:00:46 $
   7   Version:   $Revision: 1.1 $
   8
   9   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen
  10   All rights reserved.
  11   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
  12
  13      This software is distributed WITHOUT ANY WARRANTY; without even
  14      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15      PURPOSE.  See the above copyright notice for more information.
  16
  17 =========================================================================*/
  18 #include "vtkInteractorStyleCutter.h"
  19
  20 #include <vtkPoints.h>
  21 #include <vtkActor2D.h>
  22 #include <vtkObjectFactory.h>
  23 #include <vtkRenderer.h>
  24 #include <vtkRenderWindowInteractor.h>
  25 #include <vtkCellArray.h>
  26 #include <vtkPolyData.h>
  27 #include <vtkPolyDataMapper2D.h>
  28 #include <vtkProperty2D.h>
  29 #include <vtkCamera.h>
  30
  31 vtkCxxRevisionMacro(vtkInteractorStyleCutter, "$Revision: 1.1 $");
  32 vtkStandardNewMacro(vtkInteractorStyleCutter);
  33
  34 //----------------------------------------------------------------------------
  35 vtkInteractorStyleCutter::vtkInteractorStyleCutter()
  36 {
  37   this->CurrentPosition[0] = this->CurrentPosition[1] = 0;
  38   this->Direction[0] = this->Direction[1] = this->Direction[2] = 0.;
  39   this->Moving = 0;
  40
  41   this->Points = vtkPoints::New();
  42   this->Lines = vtkCellArray::New();
  43   this->LoopPoints = vtkPoints::New();
  44
  45   vtkPolyData *pd = vtkPolyData::New();
  46   pd->SetPoints( Points );
  47   pd->SetLines( Lines );
  48
  49   vtkPolyDataMapper2D *bboxMapper = vtkPolyDataMapper2D::New();
  50   bboxMapper->SetInput( pd );
  51
  52   this->BboxActor = vtkActor2D::New();
  53   this->BboxActor->SetMapper( bboxMapper );
  54   this->BboxActor->GetProperty()->SetColor(1, 0, 0);
  55   this->BboxActor->VisibilityOff();
  56
  57   finished = false;
  58
  59   //thanks
  60   pd->Delete();
  61   bboxMapper->Delete();
  62 }
  63
  64 //----------------------------------------------------------------------------
  65 vtkInteractorStyleCutter::~vtkInteractorStyleCutter()
  66 {
  67   this->Points->Delete();
  68   this->BboxActor->Delete();
  69   this->Lines->Delete();
  70   this->LoopPoints->Delete();
  71 }
  72
  73 //----------------------------------------------------------------------------
  74 void vtkInteractorStyleCutter::OnMouseMove()
  75 {
  76   if (!this->Interactor || !this->Moving)
  77     {
  78     return;
  79     }
  80
  81   this->CurrentPosition[0] = this->Interactor->GetEventPosition()[0];
  82   this->CurrentPosition[1] = this->Interactor->GetEventPosition()[1];
  83
  84   //mouse move event
  85   this->Points->SetPoint(this->PointID, this->CurrentPosition[0],
  86     this->CurrentPosition[1], 0);
  87
  88   this->Interactor->Render();
  89 }
  90
  91 //----------------------------------------------------------------------------
  92 void vtkInteractorStyleCutter::OnLeftButtonDown()
  93 {
  94   if (!this->Interactor)
  95     {
  96     return;
  97     }
  98
  99         finished = false;
 100
 101   this->CurrentPosition[0] = this->Interactor->GetEventPosition()[0];
 102   this->CurrentPosition[1] = this->Interactor->GetEventPosition()[1];
 103
 104   if(!this->Moving)
 105     {
 106     this->Initialize();
 107
 108     //Call this before accessing CurrentRenderer
 109     this->FindPokedRenderer(this->CurrentPosition[0], this->CurrentPosition[1]);
 110         this->CurrentRenderer->AddViewProp(BboxActor);
 111     }
 112
 113   this->Moving = 1;
 114
 115   this->Points->SetPoint(this->PointID, this->CurrentPosition[0],
 116     this->CurrentPosition[1], 0);
 117   this->PointID = this->Points->InsertNextPoint( this->CurrentPosition[0],
 118     this->CurrentPosition[1], 0);
 119
 120   this->Lines->InsertCellPoint( this->PointID );
 121   this->Lines->UpdateCellCount( this->PointID + 1 );
 122   this->BboxActor->VisibilityOn();
 123
 124   this->Interactor->Render();
 125 }
 126
 127 //----------------------------------------------------------------------------
 128 bool vtkInteractorStyleCutter::Finished()
 129 {
 130     return finished;
 131 }
 132
 133 //----------------------------------------------------------------------------
 134 void vtkInteractorStyleCutter::OnRightButtonDown()
 135 {
 136   if (!this->Interactor || !this->Moving)
 137     {
 138     return;
 139     }
 140
 141   double xyz[3];
 142   this->Points->GetPoint( 0, xyz );
 143   this->Points->SetPoint(this->PointID, xyz);
 144
 145   //Save current state
 146   this->EndLoop();
 147
 148   this->Interactor->Render();
 149   this->Moving = 0;
 150   finished = true;
 151 }
 152
 153 //----------------------------------------------------------------------------
 154 void vtkInteractorStyleCutter::Initialize()
 155 {
 156   this->Points->Reset();
 157   this->Lines->Reset();
 158
 159   this->PointID = this->Points->InsertNextPoint( 0, 0, 0);
 160   this->Lines->InsertNextCell( 1 );
 161   this->Lines->InsertCellPoint( 0 );
 162 }
 163 //----------------------------------------------------------------------------
 164 void vtkInteractorStyleCutter::EndLoop()
 165 {
 166   double pi[3],fpi[4];
 167   int numPts = this->Points->GetNumberOfPoints()-1;
 168   this->LoopPoints->SetNumberOfPoints( numPts );
 169   vtkCamera *camera = this->CurrentRenderer->GetActiveCamera();
 170   //int state = camera->GetParallelProjection ();
 171   camera->ParallelProjectionOn();
 172
 173   for (int i=0; i < numPts; i++)
 174   {
 175     this->Points->GetPoint(i, pi);
 176     this->CurrentRenderer->SetDisplayPoint(pi[0], pi[1], 0);
 177     this->CurrentRenderer->DisplayToWorld();
 178
 179     this->CurrentRenderer->GetWorldPoint( fpi );
 180     if ( fpi[3] )
 181     {
 182       fpi[0] /= fpi[3];
 183       fpi[1] /= fpi[3];
 184       fpi[2] /= fpi[3];
 185     }
 186     this->LoopPoints->SetPoint( i, fpi[0], fpi[1], fpi[2] );
 187   }
 188
 189   //Set direction of extrusion, should save this state before camera moves
 190   camera->GetDirectionOfProjection( this->Direction );
 191   //camera->SetParallelProjection( state );
 192 }
 193 //----------------------------------------------------------------------------
 194 //Just a quick hack:
 195 void vtkInteractorStyleCutter::VisibilityOff()
 196 {
 197   this->BboxActor->VisibilityOff();
 198 }
 199 //----------------------------------------------------------------------------
 200 void vtkInteractorStyleCutter::PrintSelf(ostream& os, vtkIndent indent)
 201 {
 202   this->Superclass::PrintSelf(os, indent);
 203 }
 204
 205