Remove-OSSIM.md

@@ -207,6 +207,21 @@ With this file attached, GDAL will be able to read the `egm96.grd` file as a ENV
 
 ### The new Sensor Model mechanism
 
+
+The class ```otb::SensorTransformBase``` is the new base class for
+sensor models. It inherits from ```otb::Transform```, which inherits
+from ```itk::Transform```. It is templated over the data type, and
+input and output dimentions. All sensor model classes should inherit
+from it, and implement the methods:
+
+- ```SetMetadataModel``` that takes a boost::any object representing
+  the model;
+- ```IsValidSensorModel``` that returns ```true``` if the model is
+  correctly set;
+- ```TransformPoint``` that process the transformation.
+  
+#### RPC sensor model
+
 ```mermaid 
 classDiagram
   class Transform~TScalarType, NInputDimensions, NOutputDimensions~{
@@ -233,6 +248,39 @@ classDiagram
   -TransformPoint(Point) Point
   }
 
+  Transform <|-- SensorTransformBase
+  SensorTransformBase <|-- RPCTransformBase
+  RPCTransformBase <|-- RPCForwardTransform
+  RPCTransformBase <|-- RPCInverseTransform
+```
+
+The RPC model is stored in the ```otb::ImageMetadata``` object, using the
+key ```MDGeom::RPC```. The classes ```otb::RPCTransformBase```,
+```otb::RPCForwardTransform``` and ```otb::RPCInverseTransform``` are used to
+perform forward and inverse transformation using this model.
+
+The abstract class ```otb::RPCTransformBase``` contains the implementation
+of the ```SetMetadataModel``` method, which receives the RPC
+description from the ```otb::ImageMetadata``` and instantiates an
+```otb::GDALRPCTransformer```.
+
+The classes ```otb::RPCForwardTransform``` and ```otb::RPCInverseTransform```
+each implement there version of the ```TransformPoint``` method which
+uses the ```otb::GDALRPCTransformer```.
+
+### SAR sensor model
+
+```mermaid 
+classDiagram
+  class Transform~TScalarType, NInputDimensions, NOutputDimensions~{
+  -TransformPoint(Point)* Point
+  }
+
+  class SensorTransformBase~TScalarType, NInputDimensions, NOutputDimensions~{
+  -SetMetadataModel(boost_any)* bool
+  -IsValidSensorModel()* bool
+  }
+
   class SarTransformBase~TScalarType, NInputDimensions, NOutputDimensions~{
   -SetMetadataModel(boost_any) bool
   -IsValidSensorModel() bool
@@ -249,41 +297,12 @@ classDiagram
   }
 
   Transform <|-- SensorTransformBase
-  SensorTransformBase <|-- RPCTransformBase
-  RPCTransformBase <|-- RPCForwardTransform
-  RPCTransformBase <|-- RPCInverseTransform
   SensorTransformBase <|-- SarTransformBase
   SarTransformBase <|-- SarForwardTransform
   SarTransformBase <|-- SarInverseTransform
 ```
 
-The class ```otb::SensorTransformBase``` is the new base class for
-sensor models. It inherits from ```otb::Transform```, which inherits
-from ```itk::Transform```. It is templated over the data type, and
-input and output dimentions. All sensor model classes should inherit
-from it, and implement the methods:
-
-- ```SetMetadataModel``` that takes a boost::any object representing
-  the model;
-- ```IsValidSensorModel``` that returns ```true``` if the model is
-  correctly set;
-- ```TransformPoint``` that process the transformation.
-  
-#### RPC sensor model
-
-The RPC model is stored in the ```otb::ImageMetadata``` object, using the
-key ```MDGeom::RPC```. The classes ```otb::RPCTransformBase```,
-```otb::RPCForwardTransform``` and ```otb::RPCInverseTransform``` are used to
-perform forward and inverse transformation using this model.
-
-The abstract class ```otb::RPCTransformBase``` contains the implementation
-of the ```SetMetadataModel``` method, which receives the RPC
-description from the ```otb::ImageMetadata``` and instantiates an
-```otb::GDALRPCTransformer```.
-
-The classes ```otb::RPCForwardTransform``` and ```otb::RPCInverseTransform```
-each implement there version of the ```TransformPoint``` method which
-uses the ```otb::GDALRPCTransformer```.
+The SAR model works on the same pattern than the RPC model.
   
 ## Justifications for the technical choices