Applications/vtkMyInteractorStyleTrackballCameraOpenHeartXZ.cxx

   1 /**
   2 * Progam made by Olivier Bernard, associate professor
   3 * at Institut National des Sciences Appliquees (INSA) Lyon,
   4 * CREATIS-LRMN Laboratory,
   5 * 69621 Villeurbanne, France,
   6 * 20th of May 2014
   7 */
   8
   9 #include <vtkRenderer.h>
  10 #include <vtkRenderWindow.h>
  11 #include "vtkMyInteractorStyleTrackballCameraOpenHeartXZ.h"
  12
  13
  14 using namespace std;
  15
  16
  17 void vtkMyInteractorStyleTrackballCameraOpenHeartXZ::OnMouseWheelForward()
  18 {
  19
  20     /// Get picker position
  21     double pos[3];
  22     this->GetPickerPosition(pos);
  23
  24     /// Go back to the initial coordinate system before reslicing
  25     double posXYZ[3];
  26     for (int i=0; i<3; i++)
  27         posXYZ[i] = pos[i];
  28     this->window->ComputePointBeforeRotation(posXYZ);
  29
  30     /// Update Slice image
  31     if ( this->IsInside(posXYZ) )
  32     {
  33         /// Compute corresponding step
  34         if ( (posXYZ[0] >= this->Limits[0] ) &&
  35              (posXYZ[0] <= this->Limits[1] ) &&
  36              (posXYZ[2] >= this->Limits[2] ) &&
  37              (posXYZ[2] <= this->Limits[3] ) )
  38             this->Step = 1;
  39         else
  40             this->Step = 5;
  41
  42         /// Compute new slice position
  43         double limit = this->Bounds[3];
  44         posXYZ[1] += this->Step * this->window->GetCurrentImageData()->GetSpacing()[1];
  45         if ( posXYZ[1] <= limit )
  46             this->window->GetRendererProperties()->position[1] += this->Step * this->window->GetCurrentImageData()->GetSpacing()[1];
  47
  48         /// Update Slice text
  49         if ( this->window->GetFlagDisplayText() )
  50         {
  51             int slice = (int)( (this->window->GetRendererProperties()->position[1] -
  52                                 this->window->GetCurrentImageData()->GetOrigin()[1]) /
  53                                 this->window->GetCurrentImageData()->GetSpacing()[1] + 0.5f );
  54             QString strSlice;
  55             strSlice.sprintf("Slice: %d",slice);
  56             this->window->GetRendererProperties()->TextMapperSlice->SetInput(strSlice.toStdString().c_str());
  57         }
  58
  59         /// Update renderers
  60         this->window->GetRendererProperties()->yIPW->SetSlicePosition(this->window->GetRendererProperties()->position[1]);
  61         this->window->GetRendererProperties()->xzIPW->SetSlicePosition(this->window->GetRendererProperties()->position[1]);
  62         this->window->GetRenderWindow()->Render();
  63         this->window->GetXZRenderer()->ResetCameraClippingRange();
  64         this->window->GetRenderWindowXZ()->Render();
  65     }
  66
  67 }
  68
  69
  70 void vtkMyInteractorStyleTrackballCameraOpenHeartXZ::OnMouseWheelBackward()
  71 {
  72
  73     /// Get picker position
  74     double pos[3];
  75     this->GetPickerPosition(pos);
  76
  77     /// Go back to the initial coordinate system before reslicing
  78     double posXYZ[3];
  79     for (int i=0; i<3; i++)
  80         posXYZ[i] = pos[i];
  81     this->window->ComputePointBeforeRotation(posXYZ);
  82
  83     /// Update Slice image
  84     if ( this->IsInside(posXYZ) )
  85     {
  86         /// Compute corresponding step
  87         if ( (posXYZ[0] >= this->Limits[0] ) &&
  88              (posXYZ[0] <= this->Limits[1] ) &&
  89              (posXYZ[2] >= this->Limits[2] ) &&
  90              (posXYZ[2] <= this->Limits[3] ) )
  91             this->Step = 1;
  92         else
  93             this->Step = 5;
  94
  95         /// Compute new slice position
  96         posXYZ[1] -= this->Step * this->window->GetCurrentImageData()->GetSpacing()[1];
  97         if ( posXYZ[1] >= 0 )
  98             this->window->GetRendererProperties()->position[1] -= this->Step * this->window->GetCurrentImageData()->GetSpacing()[1];
  99
 100         /// Update Slice text
 101         if ( this->window->GetFlagDisplayText() )
 102         {
 103             int slice = (int)( (this->window->GetRendererProperties()->position[1] -
 104                                 this->window->GetCurrentImageData()->GetOrigin()[1]) /
 105                                 this->window->GetCurrentImageData()->GetSpacing()[1] + 0.5f );
 106             QString strSlice;
 107             strSlice.sprintf("Slice: %d",slice);
 108             this->window->GetRendererProperties()->TextMapperSlice->SetInput(strSlice.toStdString().c_str());
 109         }
 110
 111         /// Update renderers
 112         this->window->GetRendererProperties()->yIPW->SetSlicePosition(this->window->GetRendererProperties()->position[1]);
 113         this->window->GetRendererProperties()->xzIPW->SetSlicePosition(this->window->GetRendererProperties()->position[1]);
 114         this->window->GetRenderWindow()->Render();
 115         this->window->GetXZRenderer()->ResetCameraClippingRange();
 116         this->window->GetRenderWindowXZ()->Render();
 117     }
 118
 119 }
 120
 121
 122 void vtkMyInteractorStyleTrackballCameraOpenHeartXZ::OnEnter()
 123 {
 124
 125     if ( !this->FlagFirstTime )
 126     {
 127
 128         /// Set flag to 1 to never enter again in this part of the code
 129         this->FlagFirstTime = 1;
 130         double extend[6];
 131         this->window->GetCurrentImageData()->GetWholeBoundingBox(extend);
 132
 133         /// Save the boundary of the volume in world coordinates
 134         this->Bounds[0] = this->window->GetCurrentImageData()->GetExtent()[0] * this->window->GetCurrentImageData()->GetSpacing()[0] +
 135                 this->window->GetCurrentImageData()->GetOrigin()[0];
 136         this->Bounds[1] = this->window->GetCurrentImageData()->GetExtent()[1] * this->window->GetCurrentImageData()->GetSpacing()[0] +
 137                 this->window->GetCurrentImageData()->GetOrigin()[0];
 138         this->Bounds[2] = this->window->GetCurrentImageData()->GetExtent()[2] * this->window->GetCurrentImageData()->GetSpacing()[1] +
 139                 this->window->GetCurrentImageData()->GetOrigin()[1];
 140         this->Bounds[3] = this->window->GetCurrentImageData()->GetExtent()[3] * this->window->GetCurrentImageData()->GetSpacing()[1] +
 141                 this->window->GetCurrentImageData()->GetOrigin()[1];
 142         this->Bounds[4] = this->window->GetCurrentImageData()->GetExtent()[4] * this->window->GetCurrentImageData()->GetSpacing()[2] +
 143                 this->window->GetCurrentImageData()->GetOrigin()[2];
 144         this->Bounds[5] = this->window->GetCurrentImageData()->GetExtent()[5] * this->window->GetCurrentImageData()->GetSpacing()[2] +
 145                 this->window->GetCurrentImageData()->GetOrigin()[2];
 146
 147         /// Save the limit of the box to increase the scolling effect
 148         this->Limits[0] = (this->Bounds[1] - this->Bounds[0]) * this->PadBound;
 149         this->Limits[1] = this->Bounds[1] - (this->Bounds[1] - this->Bounds[0]) * this->PadBound;
 150         this->Limits[2] = (this->Bounds[5] - this->Bounds[4]) * this->PadBound;
 151         this->Limits[3] = this->Bounds[5] - (this->Bounds[5] - this->Bounds[4]) * this->PadBound;
 152
 153     }
 154
 155     vtkInteractorStyleTrackballCamera::OnEnter();
 156
 157 }
 158
 159
 160 void vtkMyInteractorStyleTrackballCameraOpenHeartXZ::OnLeave()
 161 {
 162     this->Step = 1;
 163     vtkInteractorStyleTrackballCamera::OnLeave();
 164 }
 165
 166
 167 void vtkMyInteractorStyleTrackballCameraOpenHeartXZ::GetPickerPosition(double *pos)
 168 {
 169     int X = this->Interactor->GetEventPosition()[0];
 170     int Y = this->Interactor->GetEventPosition()[1];
 171     this->window->GetPickerXZ()->Pick(X,Y,0.0,this->window->GetXZRenderer());
 172     this->window->GetPickerXZ()->GetPickPosition(pos);
 173 }
 174
 175
 176 bool vtkMyInteractorStyleTrackballCameraOpenHeartXZ::IsInside(double *pos)
 177 {
 178     if ( (pos[0]>=this->Bounds[0]) && (pos[0]<=this->Bounds[1]) &&
 179          (pos[1]>=this->Bounds[2]) && (pos[1]<=this->Bounds[3]) &&
 180          (pos[2]>=this->Bounds[4]) && (pos[2]<=this->Bounds[5]) )
 181         return true;
 182     else
 183         return false;
 184 }
 185