diff --git a/src/main/java/fr/pasteur/ida/zellige/steps/projection/ProjectionParameters.java b/src/main/java/fr/pasteur/ida/zellige/steps/projection/ProjectionParameters.java
index a6e2bd55bf07a6d33edb8c724414061f8213fc95..d38dd666a7507f4b5a154a3350c194c97d71d497 100644
--- a/src/main/java/fr/pasteur/ida/zellige/steps/projection/ProjectionParameters.java
+++ b/src/main/java/fr/pasteur/ida/zellige/steps/projection/ProjectionParameters.java
@@ -43,48 +43,48 @@ public class ProjectionParameters
     {
 
         this.delta = delta;
-        this.offset = delta;
+        this.offset = offset;
         this.projectionMethod = projectionMethod;
     }
 
-    /**
-     * Checks if the delta value is superior or equal to zero and throws an {@link DataValidationException} otherwise.
-     * @param value the delta value choose by the user. //TODO javadoc : extracted volume defined as delta x 2 + 1
-     * @throws DataValidationException - if the value is under zero.
-     */
-    private void deltaValidationCheck( int value ) throws DataValidationException
-    {
-        if ( value < 0 )
-        {
-            throw new DataValidationException( "The value of parameter Delta has to be superior to zero !" );
-        }
-    }
-
-    /**
-     *
-     * @param projectionMethod the method choose to projection the extracted surface.
-     * @throws DataValidationException if the method is not implemented (implemented methods are MIP, Mean, Median and MinIP).
-     */
-    private void projectionMethodValidationCheck( String projectionMethod ) throws DataValidationException
-    {
-        if ( ! projectionMethod.equals( "MIP" ) && ! projectionMethod.equals( "Mean" ) && ! projectionMethod.equals( "MinIP" ) && ! projectionMethod.equals( "Median" ) )
-        {
-            throw new DataValidationException( String.format( "The method %s is not implemented in Zellige !", projectionMethod ) );
-        }
-    }
-
-    /**
-     * Checks the validity of both parameters.
-     *
-     * @param delta            the extracted stack parameters
-     * @param projectionMethod the method choose to projection the extracted surface.
-     * @throws DataValidationException if at least one parameter is not valid.
-     */
-    private void projectionParametersValidationCheck( int delta, String projectionMethod ) throws DataValidationException
-    {
-        deltaValidationCheck( delta );
-        projectionMethodValidationCheck( projectionMethod );
-    }
+//    /**
+//     * Checks if the delta value is superior or equal to zero and throws an {@link DataValidationException} otherwise.
+//     * @param value the delta value choose by the user. //TODO javadoc : extracted volume defined as delta x 2 + 1
+//     * @throws DataValidationException - if the value is under zero.
+//     */
+//    private void deltaValidationCheck( int value ) throws DataValidationException
+//    {
+//        if ( value < 0 )
+//        {
+//            throw new DataValidationException( "The value of parameter Delta has to be superior to zero !" );
+//        }
+//    }
+//
+//    /**
+//     *
+//     * @param projectionMethod the method choose to projection the extracted surface.
+//     * @throws DataValidationException if the method is not implemented (implemented methods are MIP, Mean, Median and MinIP).
+//     */
+//    private void projectionMethodValidationCheck( String projectionMethod ) throws DataValidationException
+//    {
+//        if ( ! projectionMethod.equals( "MIP" ) && ! projectionMethod.equals( "Mean" ) && ! projectionMethod.equals( "MinIP" ) && ! projectionMethod.equals( "Median" ) )
+//        {
+//            throw new DataValidationException( String.format( "The method %s is not implemented in Zellige !", projectionMethod ) );
+//        }
+//    }
+//
+//    /**
+//     * Checks the validity of both parameters.
+//     *
+//     * @param delta            the extracted stack parameters
+//     * @param projectionMethod the method choose to projection the extracted surface.
+//     * @throws DataValidationException if at least one parameter is not valid.
+//     */
+//    private void projectionParametersValidationCheck( int delta, String projectionMethod ) throws DataValidationException
+//    {
+//        deltaValidationCheck( delta );
+//        projectionMethodValidationCheck( projectionMethod );
+//    }
 
     public int getDelta()
     {