ENH : add inner call to SuperClass::GenerateOutputInformation & add ThreadedGenerateData method

Code/Projections/otbGCPsToRPCSensorModelImageFilter.h

@@ -150,6 +150,8 @@ protected:
   /** Actual estimation of the sensor model takes place in the
    * GenerateOutputInformation() method */
   virtual void GenerateOutputInformation();
+  
+  virtual void ThreadedGenerateData(const typename TImage::RegionType&, int) {}
 
 private:
   GCPsToRPCSensorModelImageFilter ( const Self & ); // purposely not implemented

Code/Projections/otbGCPsToRPCSensorModelImageFilter.txx

@@ -130,6 +130,9 @@ void
 GCPsToRPCSensorModelImageFilter< TImage >
 ::GenerateOutputInformation()
 {
+  // First, call the superclass implementation
+  Superclass::GenerateOutputInformation();
+
   // First, retrieve the image pointer
   typename TImage::Pointer imagePtr = this->GetOutput();