fix #1 : need to nest by value the affine part in homogeneous product

2 files changed, 6 insertions, 2 deletions

diff --git a/Eigen/src/Geometry/Homogeneous.h b/Eigen/src/Geometry/Homogeneous.h
index 0041ca51f..34d4d074b 100644
--- a/Eigen/src/Geometry/Homogeneous.h
+++ b/Eigen/src/Geometry/Homogeneous.h
@@ -102,11 +102,11 @@ template<typename MatrixType,int Direction> class Homogeneous
 
     template<typename Scalar, int Dim, int Mode> friend
     inline const ei_homogeneous_left_product_impl<Homogeneous,
-      typename Transform<Scalar,Dim,Mode>::AffinePart>
+      typename Transform<Scalar,Dim,Mode>::AffinePartNested>
     operator* (const Transform<Scalar,Dim,Mode>& tr, const Homogeneous& rhs)
     {
       ei_assert(Direction==Vertical);
-      return ei_homogeneous_left_product_impl<Homogeneous,typename Transform<Scalar,Dim,Mode>::AffinePart>
+      return ei_homogeneous_left_product_impl<Homogeneous,typename Transform<Scalar,Dim,Mode>::AffinePartNested >
         (tr.affine(),rhs.m_matrix);
     }
 
diff --git a/Eigen/src/Geometry/Transform.h b/Eigen/src/Geometry/Transform.h
index 186580ab4..77a06fe17 100644
--- a/Eigen/src/Geometry/Transform.h
+++ b/Eigen/src/Geometry/Transform.h
@@ -184,6 +184,10 @@ public:
   typedef typename ei_meta_if<int(Mode)==int(AffineCompact),
                               MatrixType&,
                               Block<MatrixType,Dim,HDim> >::ret AffinePart;
+  /** type of read/write reference to the affine part of the transformation */
+  typedef typename ei_meta_if<int(Mode)==int(AffineCompact),
+                              MatrixType&,
+                              NestByValue<Block<MatrixType,Dim,HDim> > >::ret AffinePartNested;
   /** type of a vector */
   typedef Matrix<Scalar,Dim,1> VectorType;
   /** type of a read/write reference to the translation part of the rotation */