COMP: Fixed warnings: unused variable

Libs/Visualization/VTK/Core/ctkVTKCompositeFunction.cpp

@@ -399,5 +399,6 @@ vtkColorTransferFunction* ctkVTKCompositeFunction::colorTransferFunction()const
 //-----------------------------------------------------------------------------
 void ctkVTKCompositeFunction::removeControlPoint( qreal pos )
 {
+  Q_UNUSED(pos);
   // TO BE IMPLEMENTED
 }

Libs/Visualization/VTK/Core/ctkVTKHistogram.cpp

@@ -339,5 +339,6 @@ void ctkVTKHistogram::build()
 //-----------------------------------------------------------------------------
 void ctkVTKHistogram::removeControlPoint( qreal pos )
 {
+  Q_UNUSED(pos);
   // TO BE IMPLEMENTED
 }

Libs/Visualization/VTK/Core/ctkVTKLookupTable.cpp

@@ -227,5 +227,6 @@ vtkLookupTable* ctkVTKLookupTable::lookupTable()const
 //-----------------------------------------------------------------------------
 void ctkVTKLookupTable::removeControlPoint( qreal pos )
 {
+  Q_UNUSED(pos);
   // TO BE IMPLEMENTED
 }

Libs/Visualization/VTK/Core/ctkVTKPiecewiseFunction.cpp

@@ -289,10 +289,9 @@ vtkPiecewiseFunction* ctkVTKPiecewiseFunction::piecewiseFunction()const
 void ctkVTKPiecewiseFunction::removeControlPoint( qreal pos )
 {
   CTK_D(ctkVTKPiecewiseFunction);
-  int index = -1;
   if (d->PiecewiseFunction.GetPointer() == 0)
-  {
-  return;
-  }
+    {
+    return;
+    }
   d->PiecewiseFunction->RemovePoint( pos );
 }

Libs/Widgets/ctkTransferFunctionControlPointsItem.cpp

@@ -270,6 +270,7 @@ void ctkTransferFunctionControlPointsItem::drawPoints( QPointF iPointF )
 //-----------------------------------------------------------------------------
 void ctkTransferFunctionControlPointsItem::fusionPoints( QPointF iPointF )
 {
+  Q_UNUSED(iPointF);
   // TO BE IMPLEMENTED
   // if 2 points are to close: delete one..?
 }