diff --git a/python/core/raster/qgsrasterinterface.sip b/python/core/raster/qgsrasterinterface.sip
index b8137c19e60..b51a01336c8 100644
--- a/python/core/raster/qgsrasterinterface.sip
+++ b/python/core/raster/qgsrasterinterface.sip
@@ -256,5 +256,10 @@ class QgsRasterInterface
                          int theStats = QgsRasterBandStats::All,
                          const QgsRectangle & theExtent = QgsRectangle(),
                          int theBinCount = 0 );
+
+  private:
+    QgsRasterInterface(const QgsRasterInterface &);
+    QgsRasterInterface &operator=(const QgsRasterInterface &);
+
 };
 
diff --git a/python/core/raster/qgsrasterprojector.sip b/python/core/raster/qgsrasterprojector.sip
index 33e129e033e..813eadfbbf5 100644
--- a/python/core/raster/qgsrasterprojector.sip
+++ b/python/core/raster/qgsrasterprojector.sip
@@ -1,6 +1,10 @@
 
-/** Raster projector */
-
+/** \ingroup core
+ * \brief QgsRasterProjector implements approximate projection support for
+ * it calculates grid of points in source CRS for target CRS + extent
+ * which are used to calculate affine transformation matrices.
+ * \class QgsRasterProjector
+ */
 class QgsRasterProjector : QgsRasterInterface
 {
 %TypeHeaderCode
@@ -18,33 +22,6 @@ class QgsRasterProjector : QgsRasterInterface
       Exact,   //!< Exact, precise but slow
     };
 
-    /** \brief QgsRasterProjector implements approximate projection support for
-     * it calculates grid of points in source CRS for target CRS + extent
-     * which are used to calculate affine transformation matrices.
-     */
-
-    QgsRasterProjector( const QgsCoordinateReferenceSystem& theSrcCRS,
-                        const QgsCoordinateReferenceSystem& theDestCRS,
-                        int theSrcDatumTransform,
-                        int theDestDatumTransform,
-                        const QgsRectangle& theDestExtent,
-                        int theDestRows, int theDestCols,
-                        double theMaxSrcXRes, double theMaxSrcYRes,
-                        const QgsRectangle& theExtent
-                      );
-
-    QgsRasterProjector( const QgsCoordinateReferenceSystem& theSrcCRS,
-                        const QgsCoordinateReferenceSystem& theDestCRS,
-                        const QgsRectangle& theDestExtent,
-                        int theDestRows, int theDestCols,
-                        double theMaxSrcXRes, double theMaxSrcYRes,
-                        const QgsRectangle& theExtent
-                      );
-    QgsRasterProjector( const QgsCoordinateReferenceSystem& theSrcCRS,
-                        const QgsCoordinateReferenceSystem& theDestCRS,
-                        double theMaxSrcXRes, double theMaxSrcYRes,
-                        const QgsRectangle& theExtent
-                      );
     QgsRasterProjector();
 
     /** \brief The destructor */
diff --git a/src/core/raster/qgsrasterinterface.h b/src/core/raster/qgsrasterinterface.h
index 5440fd25245..cdc8805022a 100644
--- a/src/core/raster/qgsrasterinterface.h
+++ b/src/core/raster/qgsrasterinterface.h
@@ -270,6 +270,9 @@ class CORE_EXPORT QgsRasterInterface
                          int theStats = QgsRasterBandStats::All,
                          const QgsRectangle & theExtent = QgsRectangle(),
                          int theBinCount = 0 );
+
+  private:
+    Q_DISABLE_COPY( QgsRasterInterface )   // there is clone() for copying
 };
 
 #endif
diff --git a/src/core/raster/qgsrasterprojector.cpp b/src/core/raster/qgsrasterprojector.cpp
index 82c9cf80a5b..626333b6f8d 100644
--- a/src/core/raster/qgsrasterprojector.cpp
+++ b/src/core/raster/qgsrasterprojector.cpp
@@ -23,98 +23,14 @@
 #include "qgscoordinatetransform.h"
 #include "qgscsexception.h"
 
-QgsRasterProjector::QgsRasterProjector(
-  const QgsCoordinateReferenceSystem& theSrcCRS,
-  const QgsCoordinateReferenceSystem& theDestCRS,
-  int theSrcDatumTransform,
-  int theDestDatumTransform,
-  const QgsRectangle& theDestExtent,
-  int theDestRows, int theDestCols,
-  double theMaxSrcXRes, double theMaxSrcYRes,
-  const QgsRectangle& theExtent )
-    : QgsRasterInterface( nullptr )
-    , mSrcCRS( theSrcCRS )
-    , mDestCRS( theDestCRS )
-    , mSrcDatumTransform( theSrcDatumTransform )
-    , mDestDatumTransform( theDestDatumTransform )
-    , mDestExtent( theDestExtent )
-    , mExtent( theExtent )
-    , mDestRows( theDestRows ), mDestCols( theDestCols )
-    , pHelperTop( nullptr ), pHelperBottom( nullptr )
-    , mMaxSrcXRes( theMaxSrcXRes ), mMaxSrcYRes( theMaxSrcYRes )
-    , mPrecision( Approximate )
-    , mApproximate( true )
-{
-  QgsDebugMsgLevel( "Entered", 4 );
-  QgsDebugMsgLevel( "theDestExtent = " + theDestExtent.toString(), 4 );
 
-  calc();
-}
-
-QgsRasterProjector::QgsRasterProjector(
-  const QgsCoordinateReferenceSystem& theSrcCRS,
-  const QgsCoordinateReferenceSystem& theDestCRS,
-  const QgsRectangle& theDestExtent,
-  int theDestRows, int theDestCols,
-  double theMaxSrcXRes, double theMaxSrcYRes,
-  const QgsRectangle& theExtent )
-    : QgsRasterInterface( nullptr )
-    , mSrcCRS( theSrcCRS )
-    , mDestCRS( theDestCRS )
-    , mSrcDatumTransform( -1 )
-    , mDestDatumTransform( -1 )
-    , mDestExtent( theDestExtent )
-    , mExtent( theExtent )
-    , mDestRows( theDestRows ), mDestCols( theDestCols )
-    , pHelperTop( nullptr ), pHelperBottom( nullptr )
-    , mMaxSrcXRes( theMaxSrcXRes ), mMaxSrcYRes( theMaxSrcYRes )
-    , mPrecision( Approximate )
-    , mApproximate( false )
-{
-  QgsDebugMsgLevel( "Entered", 4 );
-  QgsDebugMsgLevel( "theDestExtent = " + theDestExtent.toString(), 4 );
-
-  calc();
-}
-
-QgsRasterProjector::QgsRasterProjector(
-  const QgsCoordinateReferenceSystem& theSrcCRS,
-  const QgsCoordinateReferenceSystem& theDestCRS,
-  double theMaxSrcXRes, double theMaxSrcYRes,
-  const QgsRectangle& theExtent )
-    : QgsRasterInterface( nullptr )
-    , mSrcCRS( theSrcCRS )
-    , mDestCRS( theDestCRS )
-    , mSrcDatumTransform( -1 )
-    , mDestDatumTransform( -1 )
-    , mExtent( theExtent )
-    , mDestRows( 0 )
-    , mDestCols( 0 )
-    , mDestXRes( 0.0 )
-    , mDestYRes( 0.0 )
-    , mSrcRows( 0 )
-    , mSrcCols( 0 )
-    , mSrcXRes( 0.0 )
-    , mSrcYRes( 0.0 )
-    , mDestRowsPerMatrixRow( 0.0 )
-    , mDestColsPerMatrixCol( 0.0 )
-    , pHelperTop( nullptr ), pHelperBottom( nullptr )
-    , mHelperTopRow( 0 )
-    , mCPCols( 0 )
-    , mCPRows( 0 )
-    , mSqrTolerance( 0.0 )
-    , mMaxSrcXRes( theMaxSrcXRes )
-    , mMaxSrcYRes( theMaxSrcYRes )
-    , mPrecision( Approximate )
-    , mApproximate( false )
-{
-  QgsDebugMsgLevel( "Entered", 4 );
-}
 
 QgsRasterProjector::QgsRasterProjector()
     : QgsRasterInterface( nullptr )
     , mSrcDatumTransform( -1 )
     , mDestDatumTransform( -1 )
+    , mPrecision( Approximate )
+    , mApproximate( false )
     , mDestRows( 0 )
     , mDestCols( 0 )
     , mDestXRes( 0.0 )
@@ -133,64 +49,22 @@ QgsRasterProjector::QgsRasterProjector()
     , mSqrTolerance( 0.0 )
     , mMaxSrcXRes( 0 )
     , mMaxSrcYRes( 0 )
-    , mPrecision( Approximate )
-    , mApproximate( false )
 {
   QgsDebugMsgLevel( "Entered", 4 );
 }
 
-QgsRasterProjector::QgsRasterProjector( const QgsRasterProjector &projector )
-    : QgsRasterInterface( nullptr )
-    , pHelperTop( nullptr )
-    , pHelperBottom( nullptr )
-    , mHelperTopRow( 0 )
-    , mCPCols( 0 )
-    , mCPRows( 0 )
-    , mSqrTolerance( 0 )
-    , mApproximate( false )
-{
-  mSrcCRS = projector.mSrcCRS;
-  mDestCRS = projector.mDestCRS;
-  mSrcDatumTransform = projector.mSrcDatumTransform;
-  mDestDatumTransform = projector.mDestDatumTransform;
-  mMaxSrcXRes = projector.mMaxSrcXRes;
-  mMaxSrcYRes = projector.mMaxSrcYRes;
-  mExtent = projector.mExtent;
-  mDestRows = projector.mDestRows;
-  mDestCols = projector.mDestCols;
-  mDestXRes = projector.mDestXRes;
-  mDestYRes = projector.mDestYRes;
-  mSrcRows = projector.mSrcRows;
-  mSrcCols = projector.mSrcCols;
-  mSrcXRes = projector.mSrcXRes;
-  mSrcYRes = projector.mSrcYRes;
-  mDestRowsPerMatrixRow = projector.mDestRowsPerMatrixRow;
-  mDestColsPerMatrixCol = projector.mDestColsPerMatrixCol;
-  mPrecision = projector.mPrecision;
-}
-
-QgsRasterProjector & QgsRasterProjector::operator=( const QgsRasterProjector & projector )
-{
-  if ( &projector != this )
-  {
-    mSrcCRS = projector.mSrcCRS;
-    mDestCRS = projector.mDestCRS;
-    mSrcDatumTransform = projector.mSrcDatumTransform;
-    mDestDatumTransform = projector.mDestDatumTransform;
-    mMaxSrcXRes = projector.mMaxSrcXRes;
-    mMaxSrcYRes = projector.mMaxSrcYRes;
-    mExtent = projector.mExtent;
-    mPrecision = projector.mPrecision;
-  }
-  return *this;
-}
 
 QgsRasterProjector* QgsRasterProjector::clone() const
 {
   QgsDebugMsgLevel( "Entered", 4 );
-  QgsRasterProjector * projector = new QgsRasterProjector( mSrcCRS, mDestCRS, mMaxSrcXRes, mMaxSrcYRes, mExtent );
+  QgsRasterProjector * projector = new QgsRasterProjector;
+  projector->mSrcCRS = mSrcCRS;
+  projector->mDestCRS = mDestCRS;
   projector->mSrcDatumTransform = mSrcDatumTransform;
   projector->mDestDatumTransform = mDestDatumTransform;
+  projector->mMaxSrcXRes = mMaxSrcXRes;
+  projector->mMaxSrcYRes = mMaxSrcYRes;
+  projector->mExtent = mExtent;
   projector->mPrecision = mPrecision;
   return projector;
 }
@@ -897,17 +771,17 @@ QgsRasterBlock * QgsRasterProjector::block( int bandNo, QgsRectangle  const & ex
   mDestCols = width;
   calc();
 
-  QgsDebugMsgLevel( QString( "srcExtent:\n%1" ).arg( srcExtent().toString() ), 4 );
-  QgsDebugMsgLevel( QString( "srcCols = %1 srcRows = %2" ).arg( srcCols() ).arg( srcRows() ), 4 );
+  QgsDebugMsgLevel( QString( "srcExtent:\n%1" ).arg( mSrcExtent.toString() ), 4 );
+  QgsDebugMsgLevel( QString( "srcCols = %1 srcRows = %2" ).arg( mSrcCols ).arg( mSrcRows ), 4 );
 
   // If we zoom out too much, projector srcRows / srcCols maybe 0, which can cause problems in providers
-  if ( srcRows() <= 0 || srcCols() <= 0 )
+  if ( mSrcRows <= 0 || mSrcCols <= 0 )
   {
     QgsDebugMsgLevel( "Zero srcRows or srcCols", 4 );
     return new QgsRasterBlock();
   }
 
-  QgsRasterBlock *inputBlock = mInput->block( bandNo, srcExtent(), srcCols(), srcRows(), feedback );
+  QgsRasterBlock *inputBlock = mInput->block( bandNo, mSrcExtent, mSrcCols, mSrcRows, feedback );
   if ( !inputBlock || inputBlock->isEmpty() )
   {
     QgsDebugMsg( "No raster data!" );
diff --git a/src/core/raster/qgsrasterprojector.h b/src/core/raster/qgsrasterprojector.h
index 0b6d18dfe0b..9682d758ce4 100644
--- a/src/core/raster/qgsrasterprojector.h
+++ b/src/core/raster/qgsrasterprojector.h
@@ -36,6 +36,9 @@ class QgsPoint;
 class QgsCoordinateTransform;
 
 /** \ingroup core
+ * \brief QgsRasterProjector implements approximate projection support for
+ * it calculates grid of points in source CRS for target CRS + extent
+ * which are used to calculate affine transformation matrices.
  * \class QgsRasterProjector
  */
 class CORE_EXPORT QgsRasterProjector : public QgsRasterInterface
@@ -50,44 +53,11 @@ class CORE_EXPORT QgsRasterProjector : public QgsRasterInterface
       Exact = 1,   //!< Exact, precise but slow
     };
 
-    /** \brief QgsRasterProjector implements approximate projection support for
-     * it calculates grid of points in source CRS for target CRS + extent
-     * which are used to calculate affine transformation matrices.
-     */
-
-    QgsRasterProjector( const QgsCoordinateReferenceSystem& theSrcCRS,
-                        const QgsCoordinateReferenceSystem& theDestCRS,
-                        int theSrcDatumTransform,
-                        int theDestDatumTransform,
-                        const QgsRectangle& theDestExtent,
-                        int theDestRows, int theDestCols,
-                        double theMaxSrcXRes, double theMaxSrcYRes,
-                        const QgsRectangle& theExtent
-                      );
-
-    QgsRasterProjector( const QgsCoordinateReferenceSystem& theSrcCRS,
-                        const QgsCoordinateReferenceSystem& theDestCRS,
-                        const QgsRectangle& theDestExtent,
-                        int theDestRows, int theDestCols,
-                        double theMaxSrcXRes, double theMaxSrcYRes,
-                        const QgsRectangle& theExtent
-                      );
-    QgsRasterProjector( const QgsCoordinateReferenceSystem& theSrcCRS,
-                        const QgsCoordinateReferenceSystem& theDestCRS,
-                        double theMaxSrcXRes, double theMaxSrcYRes,
-                        const QgsRectangle& theExtent
-                      );
     QgsRasterProjector();
-    /** \brief Copy constructor */
-    // To avoid synthesized which fails on copy of QgsCoordinateTransform
-    // (QObject child) in Python bindings
-    QgsRasterProjector( const QgsRasterProjector &projector );
 
     /** \brief The destructor */
     ~QgsRasterProjector();
 
-    QgsRasterProjector & operator=( const QgsRasterProjector &projector );
-
     QgsRasterProjector *clone() const override;
 
     int bandCount() const override;
@@ -128,14 +98,6 @@ class CORE_EXPORT QgsRasterProjector : public QgsRasterInterface
                             QgsRectangle& theDestExtent, int& theDestXSize, int& theDestYSize );
 
   private:
-    /** Get source extent */
-    QgsRectangle srcExtent() { return mSrcExtent; }
-
-    /** Get/set source width/height */
-    int srcRows() { return mSrcRows; }
-    int srcCols() { return mSrcCols; }
-    void setSrcRows( int theRows ) { mSrcRows = theRows; mSrcXRes = mSrcExtent.height() / mSrcRows; }
-    void setSrcCols( int theCols ) { mSrcCols = theCols; mSrcYRes = mSrcExtent.width() / mSrcCols; }
 
     /** \brief Get source row and column indexes for current source extent and resolution
         If source pixel is outside source extent theSrcRow and theSrcCol are left unchanged.
@@ -143,9 +105,6 @@ class CORE_EXPORT QgsRasterProjector : public QgsRasterInterface
      */
     bool srcRowCol( int theDestRow, int theDestCol, int *theSrcRow, int *theSrcCol, const QgsCoordinateTransform& ct );
 
-    int dstRows() const { return mDestRows; }
-    int dstCols() const { return mDestCols; }
-
     /** \brief get destination point for _current_ destination position */
     void destPointOnCPMatrix( int theRow, int theCol, double *theX, double *theY );
 
@@ -215,6 +174,16 @@ class CORE_EXPORT QgsRasterProjector : public QgsRasterInterface
     /** Destination datum transformation id (or -1 if none) */
     int mDestDatumTransform;
 
+    /** Requested precision */
+    Precision mPrecision;
+
+    /** Use approximation (requested precision is Approximate and it is possible to calculate
+     *  an approximation matrix with a sufficient precision) */
+    bool mApproximate;
+
+
+
+
     /** Destination extent */
     QgsRectangle mDestExtent;
 
@@ -284,12 +253,6 @@ class CORE_EXPORT QgsRasterProjector : public QgsRasterInterface
     double mMaxSrcXRes;
     double mMaxSrcYRes;
 
-    /** Requested precision */
-    Precision mPrecision;
-
-    /** Use approximation (requested precision is Approximate and it is possible to calculate
-     *  an approximation matrix with a sufficient precision) */
-    bool mApproximate;
 };
 
 #endif