00001 // This is core/vnl/xio/vnl_xio_quaternion.h 00002 #ifndef vnl_xio_quaternion_h 00003 #define vnl_xio_quaternion_h 00004 //: 00005 // \file 00006 // \brief XML write a vnl_quaternion 00007 // Two functions which write a valid XML fragment to an ostream. 00008 // - x_write() writes a single XML element node without content, 00009 // but with the four values as attributes. 00010 // - x_write_tree() writes a 2-level XML fragment: one top element node, 00011 // and one level below it for the four elements 00012 // (element nodes x, y, z, and r with a single value each). 00013 // The name of the top node can be chosen; by default, it is "vnl_quaternion". 00014 // \author Gamze D. Tunali 00015 // \date 22-Dec-2005 00016 // \verbatim 00017 // Modifications 00018 // 29 July 2011 - Peter Vanroose - added documentation, tests, and x_write_tree() 00019 // \endverbatim 00020 00021 #include <vnl/vnl_quaternion.h> 00022 #include <vcl_string.h> 00023 #include <vcl_iosfwd.h> 00024 00025 //: XML save vnl_quaternion to stream. 00026 // \relatesalso vnl_quaternion 00027 template <class T> 00028 void x_write(vcl_ostream & os, vnl_quaternion<T> const& v, 00029 vcl_string name="vnl_quaternion"); 00030 00031 //: XML save vnl_quaternion as a 2-level tree to stream. 00032 // \relatesalso vnl_quaternion 00033 template <class T> 00034 void x_write_tree(vcl_ostream & os, vnl_quaternion<T> const& v, 00035 vcl_string name="vnl_quaternion"); 00036 00037 #define VNL_XIO_QUATERNION_INSTANTIATE(T) extern "Please #include <vnl/xio/vnl_xio_quaternion.txx> first" 00038 00039 #endif // vnl_xio_quaternion_h