Remove-OSSIM.md

@@ -378,6 +378,35 @@ Note that RPC transforms will use GDAL DEM functions internally instead of using
 
 ### Re-implement RPC model
 
+#### DEM and RPC exclusion
+
+The new DEM Handler uses GDAL's DEM functionalities. The new RPC
+model also uses GDAL and its RPC functionalities. But it doesn't
+allow the use of the new DEM handler. So the OTB will work with 2 DEM
+handler, both based on GDAL, but that may now function the same
+way. This is why it is important to check that all applications and
+filters that use both the DEM handler and the RPC model are well
+tested and don't start to malfunction.
+
+List of OTB elements using DEM handler and RPC model:
+
+- Modules/Applications/AppProjection/app/otbOrthoRectification.cxx
+- Modules/Filtering/DEM/include/otbDEMToImageGenerator.h
+- Modules/Filtering/Projection/include/otbGCPsToRPCSensorModelImageFilter.h
+- Modules/Filtering/Projection/test/otbGCPsToRPCSensorModelImageFilterCheckRpcModel.cxx
+- Modules/Filtering/Projection/test/otbGenericRSResampleImageFilter.cxx
+- Modules/Filtering/Projection/test/otbGenericRSTransformFromImage.cxx
+- Modules/Filtering/Projection/test/otbGenericRSTransformGenericTest.cxx
+- Modules/Filtering/Projection/test/otbSensorModel.cxx
+- Modules/Filtering/Projection/test/otbTileImageFilterRSTransformTest.cxx
+- Modules/IO/KMZWriter/test/otbKmzProductWriter.cxx
+- Modules/Registration/DisparityMap/test/otbDisparityMapToDEMFilter.cxx
+- Modules/Registration/Stereo/include/otbStereoSensorModelToElevationMapFilter.hxx
+- Modules/Registration/Stereo/include/otbStereorectificationDisplacementFieldSource.hxx
+- Modules/Visualization/MonteverdiCore/src/mvdVectorImageModel.cxx
+
+The analyse of this elements is in progress.
+
 ### Re-implement generic SAR model
 
 ### Implement sensor factory for external models