diff --git a/wrap/ply/io_mask.h b/wrap/ply/io_mask.h
new file mode 100644
index 00000000..8c9ecbc3
--- /dev/null
+++ b/wrap/ply/io_mask.h
@@ -0,0 +1,121 @@
+/****************************************************************************
+* VCGLib                                                            o o     *
+* Visual and Computer Graphics Library                            o     o   *
+*                                                                _   O  _   *
+* Copyright(C) 2004                                                \/)\/    *
+* Visual Computing Lab                                            /\/|      *
+* ISTI - Italian National Research Council                           |      *
+*                                                                    \      *
+* All rights reserved.                                                      *
+*                                                                           *
+* This program is free software; you can redistribute it and/or modify      *   
+* it under the terms of the GNU General Public License as published by      *
+* the Free Software Foundation; either version 2 of the License, or         *
+* (at your option) any later version.                                       *
+*                                                                           *
+* This program is distributed in the hope that it will be useful,           *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
+* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)          *
+* for more details.                                                         *
+*                                                                           *
+****************************************************************************/
+/****************************************************************************
+  History
+
+$Log: not supported by cvs2svn $
+Revision 1.3  2004/05/12 10:19:30  ganovelli
+new line added at the end of file
+
+Revision 1.2  2004/03/09 21:26:47  cignoni
+cr lf mismatch
+
+Revision 1.1  2004/03/03 15:00:51  cignoni
+Initial commit
+
+****************************************************************************/
+#ifndef __VCGLIB_PLY_IO_MASK
+#define __VCGLIB_PLY_IO_MASK
+
+/**
+@name Load and Save in Ply format
+*/
+//@{
+#include<wrap/callback.h>
+#include<wrap/ply/plylib.h>
+
+namespace vcg {
+namespace ply {
+
+  
+class PLYMask
+{
+public:
+
+  /*
+  Bitmask for specifying what data has to be loaded or saved or it is present in a given plyfile;
+*/
+
+enum {
+	PM_NONE         = 0x0000,
+
+  PM_VERTCOORD    = 0x0001,
+	PM_VERTFLAGS    = 0x0002, 
+	PM_VERTCOLOR    = 0x0004,
+	PM_VERTQUALITY  = 0x0008,
+	PM_VERTNORMAL   = 0x0010,
+	PM_VERTTEXCOORD = 0x0020,
+
+	PM_FACEINDEX    = 0x0040,
+	PM_FACEFLAGS    = 0x0080,
+	PM_FACECOLOR    = 0x0100,
+	PM_FACEQUALITY  = 0x0200,
+	PM_FACENORMAL   = 0x0400,
+	PM_WEDGCOLOR    = 0x0800,
+	PM_WEDGTEXCOORD = 0x1000,
+	PM_WEDGTEXMULTI = 0x2000, // Se ha anche l'indice di texture esplicito
+	PM_WEDGNORMAL   = 0x4000,
+
+	PM_CAMERA       = 0x8000,
+
+	PM_TETRAINDEX    = 0x010000,
+	PM_TETRAFLAGS    = 0x020000,
+	PM_TETRACOLOR    = 0x040000,
+	PM_TETRAQUALITY  = 0x080000,
+	PM_TETRANORMAL   = 0x100000,
+
+	PM_FLAGS        = PM_VERTFLAGS + PM_FACEFLAGS + PM_TETRAFLAGS,
+
+	PM_ALL          = 0xFFFF
+};
+
+
+static void SMFlags2String( int mask, char str[] )
+{
+	str[0] = 0;
+
+	strcat(str,"V:");
+	if( mask & PM_VERTFLAGS    ) strcat(str,"flag,");
+	if( mask & PM_VERTCOLOR    ) strcat(str,"color,");
+	if( mask & PM_VERTQUALITY  ) strcat(str,"quality,");
+	if( mask & PM_VERTTEXCOORD ) strcat(str,"tcoord,");
+	if( mask & PM_VERTNORMAL ) strcat(str,"normal,");
+
+	strcat(str," F:");
+	if( mask & PM_FACEFLAGS    ) strcat(str,"mask,");
+	if( mask & PM_FACECOLOR    ) strcat(str,"color,");
+	if( mask & PM_FACEQUALITY  ) strcat(str,"quality,");
+	if( mask & PM_FACENORMAL   ) strcat(str,"normal,");
+
+	strcat(str," W:");
+	if( mask & PM_WEDGCOLOR    ) strcat(str,"color,");
+	if( mask & PM_WEDGTEXCOORD ) strcat(str,"tcoord,");
+	if( mask & PM_WEDGNORMAL  ) strcat(str,"normal,");
+
+	if( mask & PM_CAMERA ) strcat(str," camera");
+}
+
+}; // end class
+} // end namespace ply
+} // end namespace vcg
+#endif