+ * \brief Sets the internal pointer to the caller's inData
+ * image representation, BUT WITHOUT COPYING THE DATA.
+ * - 'image' Pixels are presented as C-like 2D arrays : line per line.
+ * - 'volume'Pixels are presented as C-like 3D arrays : plane per plane
+ * \warning Since the pixels are not copied, it is the caller's responsability
+ * not to deallocate its data before gdcm uses them (e.g. with
+ * the Write() method )