ENH : force user to set spacing in the method used to set automatically the output parameters

Code/Projections/otbGenericRSResampleImageFilter.h

@@ -219,7 +219,7 @@ public:
   void SetOutputParametersFromImage(const ImageBaseType * image);
 
   /** Useful to set the output parameters from an existing image*/
-  void SetOutputParametersFromMap(const std::string map);
+  void SetOutputParametersFromMap(const std::string map, const SpacingType& spacing);
   
   /** Set/Get the grid size for rpc estimator*/
   void SetInputRpcGridSize(const SizeType& gridSize)

Code/Projections/otbGenericRSResampleImageFilter.txx

@@ -241,7 +241,7 @@ GenericRSResampleImageFilter<TInputImage, TOutputImage>
 template <class TInputImage, class TOutputImage>
 void
 GenericRSResampleImageFilter<TInputImage, TOutputImage>
-::SetOutputParametersFromMap(const std::string map)
+::SetOutputParametersFromMap(const std::string map, const SpacingType& spacing)
 {
   // Get the input Image
   const InputImageType* input = this->GetInput();
@@ -291,6 +291,7 @@ GenericRSResampleImageFilter<TInputImage, TOutputImage>
     
   // Update the transform
   this->SetOutputProjectionRef(utmRef);
+  this->SetOutputSpacing(spacing);
   this->UpdateTransform();
 
   // Get the inverse transform again : used later

Testing/Code/Projections/otbGenericRSResampleImageFilter.cxx

@@ -186,8 +186,7 @@ int otbGenericRSResampleImageFilterFromMap(int argc, char* argv[])
   // Set the Resampler Parameters
   resampler->SetInput(extractor->GetOutput());
   resampler->SetDeformationFieldSpacing(gridSpacing); 
-  resampler->SetOutputSpacing(spacing);
-  resampler->SetOutputParametersFromMap("UTM");
+  resampler->SetOutputParametersFromMap("UTM",spacing);
   
   if (useInRpc)
     {