STYLE : Update the commentary for the SARDerampImageFilter

include/otbSARDerampImageFilter.h

@@ -208,15 +208,15 @@ protected:
 
   
 
-
+  /* SARDerampImageFilter has now a subclass for each different sensor.
+   * So, the method to compute Phi and the attributes used to compute it are now different for each subclass.
+   * That is why getPhi() and ThreadInit() are virtual methods to be overwritten in each subclass.
+   */
   virtual double getPhi(double indL, double indC) =0;
   virtual void ThreadInit(ImageKeywordlist inputKWL) =0;
   void getShifts(ImageIndexType index, double & shift_ran, double & shift_azi);
 
-  //Parameters
-
-
-  
+   
 
   // Deramp (if true) or Reramp (if false) mode
   bool m_DerampMode;

include/otbSARDerampImageFilter.txx

@@ -297,7 +297,7 @@ namespace otb
 	    itkExceptionMacro(<<"Header version is inferior to 3. Please Upgrade your geom file");
 	  }
 	
-        this->ThreadInit(inputKWL);
+        this->ThreadInit(inputKWL);// this method is overwritten in each subclass 
       }
   }
    
@@ -349,7 +349,7 @@ namespace otb
 	      }
 
 	    // Phi
-	    double Phi = this->getPhi(indL,indC);
+	    double Phi = this->getPhi(indL,indC);// this method is overwritten in each subclass
 
 	    // Deramping or Reramping 
 	    if (!m_DerampMode)