Applications/vtkMyInteractorStyleTrackballCameraOpenHeartXY.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 <vtkSmartPointer.h>
  12 #include <vtkPoints.h>
  13 #include <vtkPolyLine.h>
  14 #include <vtkCellArray.h>
  15 #include <vtkPolyData.h>
  16 #include <vtkPolyDataMapper.h>
  17 #include <vtkActor.h>
  18
  19 #include "vtkMyInteractorStyleTrackballCameraOpenHeartXY.h"
  20
  21
  22 using namespace std;
  23
  24
  25 void vtkMyInteractorStyleTrackballCameraOpenHeartXY::OnMouseWheelForward()
  26 {
  27
  28     /// Get picker position
  29     double pos[3];
  30     this->GetPickerPosition(pos);
  31
  32     /// Go back to the initial coordinate system before reslicing
  33     double posXYZ[3];
  34     for (int i=0; i<3; i++)
  35         posXYZ[i] = pos[i];
  36     this->window->ComputePointBeforeRotation(posXYZ);
  37
  38     /// Update Slice image
  39     if ( this->IsInside(posXYZ) )
  40     {
  41
  42         /// Compute corresponding step
  43         if ( (posXYZ[0] >= this->Limits[0] ) &&
  44              (posXYZ[0] <= this->Limits[1] ) &&
  45              (posXYZ[1] >= this->Limits[2] ) &&
  46              (posXYZ[1] <= this->Limits[3] ) )
  47             this->Step = 1;
  48         else
  49             this->Step = 5;
  50
  51         /// Compute new slice position
  52         double limit = this->Bounds[5];
  53         posXYZ[2] += this->Step * this->window->GetCurrentImageData()->GetSpacing()[2];
  54         if ( posXYZ[2] <= limit )
  55             this->window->GetRendererProperties()->position[2] += this->Step * this->window->GetCurrentImageData()->GetSpacing()[2];
  56
  57         /// Update Slice text
  58         if ( this->window->GetFlagDisplayText() )
  59         {
  60             int slice = (int)( (this->window->GetRendererProperties()->position[2] -
  61                                 this->window->GetCurrentImageData()->GetOrigin()[2]) /
  62                                 this->window->GetCurrentImageData()->GetSpacing()[2] + 0.5f );
  63             QString strSlice;
  64             strSlice.sprintf("Slice: %d",slice);
  65             this->window->GetRendererProperties()->TextMapperSlice->SetInput(strSlice.toStdString().c_str());
  66         }
  67
  68         /// Update renderers
  69         this->window->GetRendererProperties()->zIPW->SetSlicePosition(this->window->GetRendererProperties()->position[2]);
  70         this->window->GetRendererProperties()->xyIPW->SetSlicePosition(this->window->GetRendererProperties()->position[2]);
  71         this->window->GetRenderWindow()->Render();
  72         this->window->GetXYRenderer()->ResetCameraClippingRange();
  73         this->window->GetRenderWindowXY()->Render();
  74     }
  75
  76 }
  77
  78
  79 void vtkMyInteractorStyleTrackballCameraOpenHeartXY::OnMouseWheelBackward()
  80 {
  81
  82     /// Get picker position
  83     double pos[3];
  84     this->GetPickerPosition(pos);
  85
  86     /// Go back to the initial coordinate system before reslicing
  87     double posXYZ[3];
  88     for (int i=0; i<3; i++)
  89         posXYZ[i] = pos[i];
  90     this->window->ComputePointBeforeRotation(posXYZ);
  91
  92     /// Update Slice image
  93     if ( this->IsInside(posXYZ) )
  94     {
  95
  96         /// Compute corresponding step
  97         if ( (posXYZ[0] >= this->Limits[0] ) &&
  98              (posXYZ[0] <= this->Limits[1] ) &&
  99              (posXYZ[1] >= this->Limits[2] ) &&
 100              (posXYZ[1] <= this->Limits[3] ) )
 101             this->Step = 1;
 102         else
 103             this->Step = 5;
 104
 105         /// Compute new slice position
 106         posXYZ[2] -= this->Step * this->window->GetCurrentImageData()->GetSpacing()[2];
 107         if ( posXYZ[2] >= 0 )
 108             this->window->GetRendererProperties()->position[2] -= this->Step * this->window->GetCurrentImageData()->GetSpacing()[2];
 109
 110         /// Update Slice text
 111         if ( this->window->GetFlagDisplayText() )
 112         {
 113             int slice = (int)( (this->window->GetRendererProperties()->position[2] -
 114                                 this->window->GetCurrentImageData()->GetOrigin()[2]) /
 115                                 this->window->GetCurrentImageData()->GetSpacing()[2] + 0.5f );
 116             QString strSlice;
 117             strSlice.sprintf("Slice: %d",slice);
 118             this->window->GetRendererProperties()->TextMapperSlice->SetInput(strSlice.toStdString().c_str());
 119         }
 120
 121         /// Update renderers
 122         this->window->GetRendererProperties()->zIPW->SetSlicePosition(this->window->GetRendererProperties()->position[2]);
 123         this->window->GetRendererProperties()->xyIPW->SetSlicePosition(this->window->GetRendererProperties()->position[2]);
 124         this->window->GetRenderWindow()->Render();
 125         this->window->GetXYRenderer()->ResetCameraClippingRange();
 126         this->window->GetRenderWindowXY()->Render();
 127     }
 128
 129 }
 130
 131
 132 void vtkMyInteractorStyleTrackballCameraOpenHeartXY::OnEnter()
 133 {
 134
 135     if ( !this->FlagFirstTime )
 136     {
 137
 138         /// Set flag to 1 to never enter again in this part of the code
 139         this->FlagFirstTime = 1;
 140         double extend[6];
 141         this->window->GetCurrentImageData()->GetWholeBoundingBox(extend);
 142
 143         /// Save the boundary of the volume in world coordinates
 144         this->Bounds[0] = this->window->GetCurrentImageData()->GetExtent()[0] * this->window->GetCurrentImageData()->GetSpacing()[0] +
 145                 this->window->GetCurrentImageData()->GetOrigin()[0];
 146         this->Bounds[1] = this->window->GetCurrentImageData()->GetExtent()[1] * this->window->GetCurrentImageData()->GetSpacing()[0] +
 147                 this->window->GetCurrentImageData()->GetOrigin()[0];
 148         this->Bounds[2] = this->window->GetCurrentImageData()->GetExtent()[2] * this->window->GetCurrentImageData()->GetSpacing()[1] +
 149                 this->window->GetCurrentImageData()->GetOrigin()[1];
 150         this->Bounds[3] = this->window->GetCurrentImageData()->GetExtent()[3] * this->window->GetCurrentImageData()->GetSpacing()[1] +
 151                 this->window->GetCurrentImageData()->GetOrigin()[1];
 152         this->Bounds[4] = this->window->GetCurrentImageData()->GetExtent()[4] * this->window->GetCurrentImageData()->GetSpacing()[2] +
 153                 this->window->GetCurrentImageData()->GetOrigin()[2];
 154         this->Bounds[5] = this->window->GetCurrentImageData()->GetExtent()[5] * this->window->GetCurrentImageData()->GetSpacing()[2] +
 155                 this->window->GetCurrentImageData()->GetOrigin()[2];
 156
 157         /// Save the limit of the box to increase the scolling effect
 158         this->Limits[0] = (this->Bounds[1] - this->Bounds[0]) * this->PadBound;
 159         this->Limits[1] = this->Bounds[1] - (this->Bounds[1] - this->Bounds[0]) * this->PadBound;
 160         this->Limits[2] = (this->Bounds[3] - this->Bounds[2]) * this->PadBound;
 161         this->Limits[3] = this->Bounds[3] - (this->Bounds[3] - this->Bounds[2]) * this->PadBound;
 162
 163     }
 164
 165     vtkInteractorStyleTrackballCamera::OnEnter();
 166
 167 }
 168
 169
 170 void vtkMyInteractorStyleTrackballCameraOpenHeartXY::OnLeave()
 171 {
 172     this->Step = 1;
 173     vtkInteractorStyleTrackballCamera::OnLeave();
 174 }
 175
 176
 177 void vtkMyInteractorStyleTrackballCameraOpenHeartXY::GetPickerPosition(double *pos)
 178 {
 179     int X = this->Interactor->GetEventPosition()[0];
 180     int Y = this->Interactor->GetEventPosition()[1];
 181     this->window->GetPickerXY()->Pick(X,Y,0.0,this->window->GetXYRenderer());
 182     this->window->GetPickerXY()->GetPickPosition(pos);
 183 }
 184
 185
 186 bool vtkMyInteractorStyleTrackballCameraOpenHeartXY::IsInside(double *pos)
 187 {
 188     if ( (pos[0]>=this->Bounds[0]) && (pos[0]<=this->Bounds[1]) &&
 189          (pos[1]>=this->Bounds[2]) && (pos[1]<=this->Bounds[3]) &&
 190          (pos[2]>=this->Bounds[4]) && (pos[2]<=this->Bounds[5]) )
 191         return true;
 192     else
 193         return false;
 194 }
 195