]> Creatis software - clitk.git/blobdiff - vv/vvToolRigidReg.cxx
Added Loading initial transformation functionality
[clitk.git] / vv / vvToolRigidReg.cxx
index 2473e655b0f84e078868120dbbf93c98087e5608..b6525f72da5b4ad9d49d7dd8783e73ab2882bbaf 100644 (file)
 #include <vtkImageData.h>
 #include <vtkSmartPointer.h>
 #include <vtkTransform.h>
+#include <vvImageReader.h>
 #include "vvImage.h"
 #include "vvSlicer.h"
+#include <QFile>
+#include "clitkTransformUtilities.h"
 #include <QString>
 #include <QMessageBox>
 #include <vvMainWindow.h>
+#include <QFileDialog>
+#include <QTextStream>
 //------------------------------------------------------------------------------
 // Create the tool and automagically (I like this word) insert it in
 // the main window menu.
 ADD_TOOL(vvToolRigidReg);
 //------------------------------------------------------------------------------
 
-
 //------------------------------------------------------------------------------
 vvToolRigidReg::vvToolRigidReg(vvMainWindowBase * parent, Qt::WindowFlags f):
     vvToolWidgetBase(parent, f),
@@ -42,36 +46,49 @@ vvToolRigidReg::vvToolRigidReg(vvMainWindowBase * parent, Qt::WindowFlags f):
 {
   // GUI Initialization
   Ui_vvToolRigidReg::setupUi(mToolWidget);
+   QSize qsize;
+   qsize.setHeight(470);
+   qsize.setWidth(850);
+   mToolWidget->setFixedSize(qsize);
+
+
+  // Set how many inputs are needed for this tool
+ // mFilter = new clitk::AffineTransformGenericFilter<args_info_clitkAffineTransform>;
 
   // Set how many inputs are needed for this tool
 AddInputSelector("Select the Reference Image");
 AddInputSelector("Select the Target Image");
AddInputSelector("Select moving image");
AddInputSelector("Select fixed image");
 }
 //------------------------------------------------------------------------------
 
-
 //------------------------------------------------------------------------------
 vvToolRigidReg::~vvToolRigidReg()
 {
 }
 //------------------------------------------------------------------------------
 
-
 //------------------------------------------------------------------------------
 bool vvToolRigidReg::close()
 {
+  ResetTransform();
+  RemoveOverlay();
   return vvToolWidgetBase::close();
 }
 //------------------------------------------------------------------------------
 
-
 //------------------------------------------------------------------------------
 void vvToolRigidReg::reject()
 {
-  return vvToolWidgetBase::reject();
+   return vvToolWidgetBase::reject();
 }
 //------------------------------------------------------------------------------
 
+//------------------------------------------------------------------------------
+void vvToolRigidReg::GetArgsInfoFromGUI()
+{
+  DD("works");
+}
+//------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
 void vvToolRigidReg::InputIsSelected(std::vector<vvSlicerManager *> & l)
@@ -79,86 +96,82 @@ void vvToolRigidReg::InputIsSelected(std::vector<vvSlicerManager *> & l)
   //inputs
   mInput1 = l[0];
   mInput2 = l[1];
-  mTwoInputs = true;
 
+  UpdateTextEditor(mCurrentSlicerManager->GetImage()->GetTransform()->GetMatrix(),textEdit_2);
 
-  SetOverlay();
-  for (int j = 1; j <= 4; j++) {
-    mCurrentSlicerManager->GetSlicer(j-1)->SetActorVisibility("overlay",0,true);
+  for(int i =0;i<4;i++)
+    for(int j=0;j<4;j++)
+     mInitialMatrix[i*4+j]=mCurrentSlicerManager->GetImage()->GetTransform()->GetMatrix()->GetElement(i,j);
+
+  if(mInput1->GetFileName()==mInput2->GetFileName())
+  {
+    QMessageBox::information(this, "Warning","Your Reference and Target Images are the same");
   }
-  mCurrentSlicerManager->Render();
-
-  std::vector<int> imagesize;
-  imagesize=mCurrentSlicerManager->GetImage()->GetSize();
-  std::vector<double> imageorigin;
-  imageorigin=mCurrentSlicerManager->GetImage()->GetOrigin();
-  QString xcord,ycord,zcord;
-
-  //default image rotation center is the center of the image
-  xcord=xcord.setNum(imageorigin[0]+imagesize[0]*mCurrentSlicerManager->GetImage()->GetSpacing()[0]/2, 'g', 3);
-  ycord=ycord.setNum(imageorigin[1]+imagesize[1]*mCurrentSlicerManager->GetImage()->GetSpacing()[1]/2, 'g', 3);
-  zcord=zcord.setNum(imageorigin[2]+imagesize[2]*mCurrentSlicerManager->GetImage()->GetSpacing()[2]/2, 'g', 3);
-
-  Xval->setText(xcord);
-  Yval->setText(ycord);
-  Zval->setText(zcord);
-
-  xtrans_slider->setMaximum(2*mCurrentSlicerManager->GetImage()->GetSize()[0]);
-  xtrans_slider->setMinimum(-2*mCurrentSlicerManager->GetImage()->GetSize()[0]);
-  ytrans_slider->setMaximum(2*mCurrentSlicerManager->GetImage()->GetSize()[1]);
-  ytrans_slider->setMinimum(-2*mCurrentSlicerManager->GetImage()->GetSize()[1]);
-  ztrans_slider->setMaximum(2*mCurrentSlicerManager->GetImage()->GetSize()[2]);
-  ztrans_slider->setMinimum(-2*mCurrentSlicerManager->GetImage()->GetSize()[2]);
-
-
-  xtrans_sb->setMaximum(2*mCurrentSlicerManager->GetImage()->GetSize()[0]);
-  xtrans_sb->setMinimum(-2*mCurrentSlicerManager->GetImage()->GetSize()[0]);
-  ytrans_sb->setMaximum(2*mCurrentSlicerManager->GetImage()->GetSize()[1]);
-  ytrans_sb->setMinimum(-2*mCurrentSlicerManager->GetImage()->GetSize()[1]);
-  ztrans_sb->setMaximum(2*mCurrentSlicerManager->GetImage()->GetSize()[2]);
-  ztrans_sb->setMinimum(-2*mCurrentSlicerManager->GetImage()->GetSize()[2]);
-
-  xrot_slider->setMaximum(360);
-  xrot_slider->setMinimum(-360);
-  yrot_slider->setMaximum(360);
-  yrot_slider->setMinimum(-360);
-  zrot_slider->setMaximum(360);
-  zrot_slider->setMinimum(-360);
-
-
-  xrot_sb->setMaximum(360);
-  xrot_sb->setMinimum(-360);
-  yrot_sb->setMaximum(360);
-  yrot_sb->setMinimum(-360);
-  zrot_sb->setMaximum(360);
-  zrot_sb->setMinimum(-360);
-
-  //connect all sigs to slots
-  connect(Xval, SIGNAL(editingFinished()), this, SLOT(SetXvalue()));
-  connect(Yval, SIGNAL(editingFinished()), this, SLOT(SetYvalue()));
-  connect(Zval, SIGNAL(editingFinished()), this, SLOT(SetZvalue()));
-  connect(xtrans_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateXtranslider()));
-  connect(ytrans_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateYtranslider()));
-  connect(ztrans_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateZtranslider()));
-  connect(xrot_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateXrotslider()));
-  connect(yrot_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateYrotslider()));
-  connect(zrot_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateZrotslider()));
+  mTwoInputs = true;
+  SetOverlay();
+  mImageSize=mInput1->GetImage()->GetSize();
+  SetRotationCenter();
+  SetSliderRanges();
+
+    //connect all sigs to slots
+   connect(resetbutton, SIGNAL(pressed()), this, SLOT(ResetTransform()));
+   connect(tab2loadbutton, SIGNAL(pressed()), this, SLOT(AutoRegister()));
+
+   connect(Xval, SIGNAL(editingFinished()), this, SLOT(SetXvalue()));
+   connect(Yval, SIGNAL(editingFinished()), this, SLOT(SetYvalue()));
+   connect(Zval, SIGNAL(editingFinished()), this, SLOT(SetZvalue()));
+
+   connect(xtrans_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateTransform_sliders()));
+   connect(ytrans_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateTransform_sliders()));
+   connect(ztrans_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateTransform_sliders()));
+
+
+   connect(xrot_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateTransform_sliders()));
+   connect(yrot_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateTransform_sliders()));
+   connect(zrot_slider, SIGNAL(valueChanged(int)), this, SLOT(UpdateTransform_sliders()));
+
+   connect(xtrans_sb, SIGNAL(valueChanged(double)), this, SLOT(UpdateTransform_sb()));
+   connect(ytrans_sb, SIGNAL(valueChanged(double)), this, SLOT(UpdateTransform_sb()));
+   connect(ztrans_sb, SIGNAL(valueChanged(double)), this, SLOT(UpdateTransform_sb()));
+   connect(xrot_sb, SIGNAL(valueChanged(double)), this, SLOT(UpdateTransform_sb()));
+   connect(yrot_sb, SIGNAL(valueChanged(double)), this, SLOT(UpdateTransform_sb()));
+   connect(zrot_sb, SIGNAL(valueChanged(double)), this, SLOT(UpdateTransform_sb()));
+
+   connect(loadbutton, SIGNAL(pressed()), this, SLOT(ReadFile()));
+   connect(savebutton, SIGNAL(pressed()), this, SLOT(SaveFile()));
+
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
 void vvToolRigidReg::apply()
 {
-
+  RemoveOverlay();
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
 void vvToolRigidReg::SetOverlay()
 {
-  for (int i =0; i<mCurrentSlicerManager->NumberOfSlicers(); i++) {
-    mCurrentSlicerManager->GetSlicer(i)->SetOverlay(mInput2->GetImage());
+    for (int i =0; i<mCurrentSlicerManager->NumberOfSlicers(); i++) {
+   mCurrentSlicerManager->GetSlicer(i)->SetOverlay(mInput2->GetImage());
+   mCurrentSlicerManager->GetSlicer(i)->SetActorVisibility("overlay",0,true);
+   mCurrentSlicerManager->SetColorMap();
+   mCurrentSlicerManager->Render();
+   }
   }
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+void vvToolRigidReg::RemoveOverlay()
+{
+   for(int i=0;i<mCurrentSlicerManager->NumberOfSlicers();i++)
+        {
+          mInput1->RemoveActor("overlay",0);
+          mInput1->SetColorMap(0);
+          mInput1->Render();
+          hide();
+        }
 }
 //------------------------------------------------------------------------------
 
@@ -184,12 +197,10 @@ void vvToolRigidReg::SetZvalue()
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-void vvToolRigidReg::SetTransform(double tX, double tY, double tZ, double aX, double aY, double aZ)
+void vvToolRigidReg::SetTransform(double tX, double tY, double tZ, double aX, double aY, double aZ,bool update)
 {
-
-  vtkSmartPointer<vtkTransform> transform = mCurrentSlicerManager->GetImage()->GetTransform();
+  vtkSmartPointer<vtkTransform> transform = mInput1->GetImage()->GetTransform();
   transform->PostMultiply();
-
   //Rotations
   if (aX!=0 || aY!=0 || aZ!=0) {
     double x, y ,z;
@@ -202,76 +213,406 @@ void vvToolRigidReg::SetTransform(double tX, double tY, double tZ, double aX, do
     if (aZ!=0) transform->RotateZ(aZ);
     transform->Translate(x,y,z);
   }
-
   //Translations
-  if (tX!=0 || tY!=0 || tZ!=0)
-    transform->Translate(tX,tY,tZ);
+  if (tX!=0||tY!=0||tZ!=0)
+    transform->Translate(tX*mInput1->GetImage()->GetSpacing()[0],tY*mInput1->GetImage()->GetSpacing()[1],tZ*mInput1->GetImage()->GetSpacing()[2]);
+}
+//------------------------------------------------------------------------------
 
-  transform->Update();
+//------------------------------------------------------------------------------
+void vvToolRigidReg::SetTransform(vtkMatrix4x4 *matrix)
+{
+    vtkSmartPointer<vtkTransform> transform =mCurrentSlicerManager->GetImage()->GetTransform();
+    transform->SetMatrix(matrix);
+    Render();
+}
+//------------------------------------------------------------------------------
 
-  for (int i=0; i<mCurrentSlicerManager->NumberOfSlicers(); i++) {
-    mCurrentSlicerManager->GetImage()->UpdateReslice();
-    mCurrentSlicerManager->GetSlicer(i)->Render();
-  }
+//------------------------------------------------------------------------------
+void vvToolRigidReg::Render()
+{
+    for (int i=0; i<mCurrentSlicerManager->NumberOfSlicers(); i++) {
+      mCurrentSlicerManager->GetSlicer(i)->ForceUpdateDisplayExtent();
+      mCurrentSlicerManager->GetSlicer(i)->Render();
+      }
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-void vvToolRigidReg::UpdateXtranslider()
+  void vvToolRigidReg::UpdateTextEditor(vtkMatrix4x4 *matrix,QTextEdit* textEdit)
 {
+    QFont font=QFont("Times New Roman",11);
+    textEdit->setCurrentFont(font);
+    textEdit->update();
+
+    QString str1,str2,str3;
+    QColor color;
+    textEdit->clear();
+    textEdit->setAcceptRichText(true);
+    str2=textEdit->toPlainText();
+    str2.append("#Rotation Center(mm): \n#");
+    textEdit->setText(str2);
+
+    str2=textEdit->toPlainText();
+    textEdit->setTextColor(QColor(255,0,0));
+    str2.append(str3.append(Xval->text()));
+    textEdit->setText(str2);
+    str3.clear();
+
+    str2=textEdit->toPlainText();
+    str2.append("\t");
+    textEdit->setText(str2);
+
+    str2=textEdit->toPlainText();
+    str2.append(str3.append(Yval->text()));
+    textEdit->setText(str2);
+    str3.clear();
+
+    str2=textEdit->toPlainText();
+    str2.append("\t");
+    textEdit->setText(str2);
+
+
+    str2=textEdit->toPlainText();
+    str2.append(str3.append(Zval->text()));
+    textEdit->setText(str2);
+
+
+    str2=textEdit->toPlainText();
+    str2.append("\n");
+    textEdit->setText(str2);
+
+
+    str2=textEdit->toPlainText();
+    str2.append("#Transformation Matrix(mm):\n");
+    textEdit->setText(str2);
+    for(int i=0;i<4;i++)
+    {
+    for(int j=0;j<4;j++)
+      {
+    str2=textEdit->toPlainText();
+   // str2.append("\t"+str1.setNum(matrix->Element[i][j]));
+    str2.append(QString("%1\t").arg(str1.setNum(matrix->Element[i][j]),2));
+    textEdit->setText(str2);
+      }
+    str2=textEdit->toPlainText();
+    str2.append("\n");
+    textEdit->setText(str2);
+    }
+    //QString str = QFileDialog::getOpenFileName();
+    textEdit->setTextColor(QColor(255,0,0));
+    textEdit->setFont(QFont("courrier new",12,4,true));
+    textEdit->toPlainText().toAscii();
+
+    str2=textEdit->toPlainText();
+    textEdit->setText(str2);
+}
+//------------------------------------------------------------------------------
 
-  int diff=0;
-  diff=xtrans_slider->value()-xtrans_sb->value();
-  this->SetTransform(diff, 0, 0, 0, 0, 0);
-  xtrans_sb->setValue(xtrans_slider->value());
+//------------------------------------------------------------------------------
+void vvToolRigidReg::UpdateTransform_sliders()
+{
+       InitializeSliders(xtrans_slider->value()*mInput1->GetImage()->GetSpacing()[0],
+                        ytrans_slider->value()*mInput1->GetImage()->GetSpacing()[1],
+                        ztrans_slider->value()*mInput1->GetImage()->GetSpacing()[2],
+                       xrot_slider->value(),yrot_slider->value(),zrot_slider->value(),false);
+      UpdateTransform(true);
+      Render();
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-void vvToolRigidReg::UpdateYtranslider()
+void vvToolRigidReg::UpdateTransform_sb()
 {
-  int diff=0;
-  diff=ytrans_slider->value()-ytrans_sb->value();
-  this->SetTransform(0, diff, 0, 0, 0, 0);
-  ytrans_sb->setValue(ytrans_slider->value());
+   InitializeSliders(xtrans_sb->value(),
+      ytrans_sb->value(),
+      ztrans_sb->value(),
+                       xrot_sb->value(),yrot_sb->value(),zrot_sb->value(),false);
+      UpdateTransform(false);
+      Render();
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-void vvToolRigidReg::UpdateZtranslider()
+void vvToolRigidReg::AutoRegister()
 {
-  int diff=0;
-  diff=ztrans_slider->value()-ztrans_sb->value();
-  this->SetTransform(0, 0, diff, 0, 0, 0);
-  ztrans_sb->setValue(ztrans_slider->value());
+ GetArgsInfoFromGUI();
+    //clitk::AffineRegistrationGenericFilter::Pointer filter =
+   // clitk::AffineRegistrationGenericFilter::New();
+    //filter->SetArgsInfo(mArgsInfo);
+   // filter->Update();
+
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-void vvToolRigidReg::UpdateXrotslider()
+void vvToolRigidReg::UpdateTransform(bool slider_enabled)
 {
-  int diff=0;
-  diff=xrot_slider->value()-xrot_sb->value();
-  this->SetTransform(0, 0, 0, diff, 0, 0);
-  xrot_sb->setValue(xrot_slider->value());
+     vtkSmartPointer<vtkTransform> transform_final=vtkSmartPointer<vtkTransform>::New();
+     transform_final->SetMatrix(mInitialMatrix);
+     transform_final->PostMultiply();
+  //Rotations
+    double x=0, y=0 ,z=0;
+    x= Xval->text().toDouble();
+    y= Yval->text().toDouble();
+    z= Zval->text().toDouble();
+    transform_final->Translate(-x,-y,-z);
+    if(slider_enabled){
+    transform_final->RotateY(yrot_slider->value());
+    transform_final->RotateX(xrot_slider->value());
+    transform_final->RotateZ(zrot_slider->value());
+    }
+    else{
+    transform_final->RotateY(yrot_sb->value());
+    transform_final->RotateX(xrot_sb->value());
+    transform_final->RotateZ(zrot_sb->value());
+    }
+    transform_final->Translate(x,y,z);
+    transform_final->PreMultiply();
+    if(slider_enabled){
+    transform_final->Translate(xtrans_slider->value()*mInput1->GetImage()->GetSpacing()[0],0,0);
+    transform_final->Translate(0,ytrans_slider->value()*mInput1->GetImage()->GetSpacing()[1],0);
+    transform_final->Translate(0,0,ztrans_slider->value()*mInput1->GetImage()->GetSpacing()[2]);
+    }
+    else{
+    transform_final->Translate(xtrans_sb->value(),0,0);
+    transform_final->Translate(0,ytrans_sb->value(),0);
+    transform_final->Translate(0,0,ztrans_sb->value());
+    }
+    SetTransform(transform_final->GetMatrix());
+    UpdateTextEditor(transform_final->GetMatrix(),textEdit);
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-void vvToolRigidReg::UpdateYrotslider()
+void vvToolRigidReg::SaveFile()
 {
-  int diff=0;
-  diff=yrot_slider->value()-yrot_sb->value();
-  this->SetTransform(0, 0, 0, 0, diff, 0);
-  yrot_sb->setValue(yrot_slider->value());
+  //Write the Transformation Matrix
+    QString f1 = QFileDialog::getSaveFileName(this, tr("Save Transformation Matrix File"),
+                           "/home",
+                            tr("Text (*.mat *.txt *.doc *.rtf)"));
+    QFile file1(f1);
+    std::vector<QString> transparameters;
+    QString line1;
+
+    for(int i =0;i<4;i++)
+      for(int j=0;j<4;j++)
+    transparameters.push_back(line1.setNum(mCurrentSlicerManager->GetImage()->GetTransform()->GetMatrix()->Element[i][j]));
+
+    if (file1.open(QFile::WriteOnly | QFile::Truncate)) {
+    QTextStream out1(&file1);
+     for(int i =0;i<4;i++){
+      for(int j=0;j<4;j++) {
+      out1<<transparameters[i*4+j]+"\t";
+      }
+      out1<<"\n";
+     }
+    }
+     else
+     {
+      QMessageBox::information(this,"Warning","Error Reading Parameters");
+     }
 }
 //------------------------------------------------------------------------------
 
 //------------------------------------------------------------------------------
-void vvToolRigidReg::UpdateZrotslider()
+void vvToolRigidReg::ReadFile()
 {
-  int diff=0;
-  diff=zrot_slider->value()-zrot_sb->value();
-  this->SetTransform(0, 0, 0, 0, 0, diff);
-  zrot_sb->setValue(zrot_slider->value());
+   std::string x;
+   QString center;
+   double * orientations=new double[3];
+   double * translations=new double[3];
+   vtkMatrix4x4 *matrix=vtkMatrix4x4::New();
+   vtkSmartPointer<vtkTransform> transform = mCurrentSlicerManager->GetImage()->GetTransform();
+
+   //Open File to read the transformation parameters
+   QString file1 = QFileDialog::getOpenFileName(
+                    this,
+                   "Choose the Transformation Parameters file",
+                    "/home",
+                    "Text (*.mat *.txt *.rtf *.doc)");
+    if (file1.isEmpty())
+    return;
+   QFile Qfile1(file1);
+  // ifstream readfile;
+   std::string transfile= file1.toStdString();
+   std::string filename1(transfile);
+   std::ifstream f1(filename1.c_str());
+   if(f1.is_open())
+   {
+   f1.close();
+   itk::Matrix<double, 4, 4> itkMat = clitk::ReadMatrix3D(transfile);
+   for(int j=0; j<4; j++)
+      for(int i=0; i<4; i++)
+    matrix->SetElement(i,j,itkMat[i][j]);
+   }
+    UpdateTextEditor(matrix,textEdit);
+    transform->SetMatrix(matrix);
+    transform->GetOrientation(orientations);
+    transform->PostMultiply();
+
+     //Obtain the Rotation Center , set it to origin
+    Xval->setText(center.setNum(0));
+    Yval->setText(center.setNum(0));
+    Zval->setText(center.setNum(0));
+
+    //In the Order or Y X Z //
+    //now  postmultiply for the rotations
+    SetTransform(0,0,0,0,0,-round(orientations[2]),false);
+    SetTransform(0,0,0,-round(orientations[0]),0,0,false);
+    SetTransform(0,0,0,0,-round(orientations[1]),0,false);
+
+    transform->GetPosition(translations);
+    transform->Identity();
+
+    DD(translations[0]/mInput1->GetImage()->GetSpacing()[0]);
+    DD(translations[1]/mInput1->GetImage()->GetSpacing()[1]);
+    DD(translations[2]/mInput1->GetImage()->GetSpacing()[2]);
+    DD(orientations[0]);
+    DD(orientations[1]);
+    DD(orientations[2]);
+      //set the sliders  and spin box values
+    InitializeSliders(rint(translations[0]),rint(translations[1])
+    ,rint(translations[2]),rint(orientations[0]),rint(orientations[1]),rint(orientations[2]),true);
+    SetTransform(matrix);
+}
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+void vvToolRigidReg::ResetTransform()
+{
+  vtkMatrix4x4 *matrix = vtkMatrix4x4::New();
+  for(int i=0;i<4;i++)
+    for(int j=0;j<4;j++)
+          matrix->SetElement(i,j,mInitialMatrix[i*4+j]);
+   SetTransform(matrix);
+   SetRotationCenter();
+   SetSliderRanges();
+   UpdateTextEditor(matrix,textEdit);
+}
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+void vvToolRigidReg::SetRotationCenter()
+{
+    //default image rotation center is the center of the image
+    QString xcord,ycord,zcord;
+    std::vector<double> imageorigin;
+    imageorigin=mInput1->GetImage()->GetOrigin();
+
+    xcord=xcord.setNum(imageorigin[0]+mImageSize[0]*mInput1->GetImage()->GetSpacing()[0]/2, 'g', 3);
+    ycord=ycord.setNum(imageorigin[1]+mImageSize[1]*mInput1->GetImage()->GetSpacing()[1]/2, 'g', 3);
+    zcord=zcord.setNum(imageorigin[2]+mImageSize[2]*mInput1->GetImage()->GetSpacing()[2]/2, 'g', 3);
+
+    Xval->setText(xcord);
+    Yval->setText(ycord);
+    Zval->setText(zcord);
+    InitializeSliders(0,0,0,0,0,0,true);
+}
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+void vvToolRigidReg::InitializeSliders(double xtrans,double ytrans, double ztrans, double xrot, double yrot, double zrot,bool sliders)
+{
+
+    xtrans_sb->blockSignals(true);
+    xtrans_sb->setSingleStep(mInput1->GetImage()->GetSpacing()[0]);
+    xtrans_sb->setValue(xtrans);
+    xtrans_sb->blockSignals(false);
+    ytrans_sb->blockSignals(true);
+    ytrans_sb->setSingleStep(mInput1->GetImage()->GetSpacing()[1]);
+    ytrans_sb->setValue(ytrans);
+    ytrans_sb->blockSignals(false);
+    ztrans_sb->blockSignals(true);
+    ztrans_sb->setSingleStep(mInput1->GetImage()->GetSpacing()[2]);
+    ztrans_sb->setValue(ztrans);
+    ztrans_sb->blockSignals(false);
+
+    if(sliders){
+    xtrans_slider->blockSignals(true);
+    DD(xtrans_slider->value());
+    xtrans_slider->setValue(rint(xtrans));
+    xtrans_slider->blockSignals(false);
+    ytrans_slider->blockSignals(true);
+    ytrans_slider->setValue(rint(ytrans));
+    ytrans_slider->blockSignals(false);
+    ztrans_slider->blockSignals(true);
+    ztrans_slider->setValue(rint(ztrans));
+    ztrans_slider->blockSignals(false);
+    }
+    xrot_sb->blockSignals(true);
+    xrot_sb->setValue(xrot);
+    xrot_sb->blockSignals(false);
+    yrot_sb->blockSignals(true);
+    yrot_sb->setValue(yrot);
+    yrot_sb->blockSignals(false);
+    zrot_sb->blockSignals(true);
+    zrot_sb->setValue(zrot);
+    zrot_sb->blockSignals(false);
+    xrot_slider->blockSignals(true);
+    xrot_slider->setValue(xrot);
+    xrot_slider->blockSignals(false);
+    yrot_slider->blockSignals(true);
+    yrot_slider->setValue(yrot);
+    yrot_slider->blockSignals(false);
+    zrot_slider->blockSignals(true);
+    zrot_slider->setValue(zrot);
+    zrot_slider->blockSignals(false);
+}
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+void vvToolRigidReg::SetSliderRanges()
+{
+  xtrans_slider->blockSignals(true);
+  xtrans_slider->setRange(-2000,2000);
+  xtrans_slider->blockSignals(false);
+
+  ytrans_slider->blockSignals(true);
+  ytrans_slider->setRange(-2000,2000);
+  ytrans_slider->blockSignals(false);
+
+  ztrans_slider->blockSignals(true);
+  ztrans_slider->setRange(-2000,2000);
+  ztrans_slider->blockSignals(false);
+
+  xtrans_sb->blockSignals(true);
+  xtrans_sb->setRange(-2000,2000);
+  xtrans_sb->setDecimals(3);
+  xtrans_sb->blockSignals(false);
+
+  ytrans_sb->blockSignals(true);
+  ytrans_sb->setRange(-2000,2000);
+  ytrans_sb->setDecimals(3);
+  ytrans_sb->blockSignals(false);
+
+  ztrans_sb->blockSignals(true);
+  ztrans_sb->setRange(-2000,2000);
+  ztrans_sb->setDecimals(3);
+  ztrans_sb->blockSignals(false);
+
+  xrot_slider->blockSignals(true);
+  xrot_slider->setRange(-360,360);
+  xrot_slider->blockSignals(false);
+
+  yrot_slider->blockSignals(true);
+  yrot_slider->setRange(-360,360);
+  yrot_slider->blockSignals(false);
+
+  zrot_slider->blockSignals(true);
+  zrot_slider->setRange(-360,360);
+  zrot_slider->blockSignals(false);
+
+
+  xrot_sb->blockSignals(true);
+  xrot_sb->setRange(-360,360);
+  xrot_sb->blockSignals(false);
+
+  yrot_sb->blockSignals(true);
+  yrot_sb->setRange(-360,360);
+  yrot_sb->blockSignals(false);
+
+  zrot_sb->blockSignals(true);
+  zrot_sb->setRange(-360,360);
+  zrot_sb->blockSignals(false);
 }