BUG: set RPCs with OssimKWL for sensor that don't use the new metadata framework yet

Modules/IO/IOGDAL/src/otbGDALImageIO.cxx

@@ -1490,6 +1490,10 @@ std::cout << m_Imd << std::endl;
     std::abs(geoTransform[4]) > Epsilon ||
     std::abs(geoTransform[5] - 1.0) > Epsilon;
 
+  itk::MetaDataDictionary& dict = this->GetMetaDataDictionary();
+  ImageKeywordlist otb_kwl;
+  itk::ExposeMetaData<ImageKeywordlist>(dict, MetaDataKey::OSSIMKeywordlistKey, otb_kwl);
+
   /* -------------------------------------------------------------------- */
   /* Case 1: Set the projection coordinate system of the image            */
   /* -------------------------------------------------------------------- */
@@ -1531,6 +1535,25 @@ std::cout << m_Imd << std::endl;
       CSLDestroy(rpcMetadata);
       }
     }
+  // ToDo : remove this part. This case is here for compatibility for images
+  // that still use Ossim for managing the sensor model (with OSSIMKeywordList).
+  else if (otb_kwl.GetSize())
+    {
+    /* -------------------------------------------------------------------- */
+    /* Set the RPC coeffs (since GDAL 1.10.0)                               */
+    /* -------------------------------------------------------------------- */
+    if (m_WriteRPCTags)
+      {
+      GDALRPCInfo gdalRpcStruct;
+      if (otb_kwl.convertToGDALRPC(gdalRpcStruct))
+        {
+        otbLogMacro(Debug, << "Saving RPC to file (" << m_FileName << ")")
+        char** rpcMetadata = RPCInfoToMD(&gdalRpcStruct);
+        dataset->SetMetadata(rpcMetadata, "RPC");
+        CSLDestroy(rpcMetadata);
+        }
+      }
+    }
   /* -------------------------------------------------------------------- */
   /* Case 3: Set the GCPs                                                 */
   /* -------------------------------------------------------------------- */
@@ -1562,7 +1585,6 @@ std::cout << m_Imd << std::endl;
       }
 
     const std::string & gcpProjectionRef = gcpPrm.GCPProjection;
-
     dataset->SetGCPs(gdalGcps.size(), gdalGcps.data(), gcpProjectionRef.c_str());
 
     // disable geotransform with GCP