xmlio.hpp

// This file is part of the imaging2 class library.
//
// University of Innsbruck, Infmath Imaging, 2009.
// http://infmath.uibk.ac.at
//
// All rights reserved.


#ifndef SPLINE_XMLIO_H
#define SPLINE_XMLIO_H

#include <xml/XmlReader.hpp>
#include <xml/XmlWriter.hpp>
#include <spline/PeriodicBspline.hpp>
#include <core/xmlio.hpp>

namespace imaging
{
  template<>
  template <class DATA_t>
  class xml_handler< PeriodicBspline<DATA_t> >
  {
  public:
    static const std::string element_name;
    
    void read_object(XmlReader & in, PeriodicBspline<DATA_t> & object) const
    {
      std::vector<float_t> knots;
      std::vector<DATA_t> coefficients;
      size_t spline_order;
            
      in >> XmlReader::element("knot") >> knots;
      in >> XmlReader::element("coefficient") >> coefficients;
      in >> XmlReader::element("spline_order") >> spline_order >> XmlReader::end_element;
      
      object.resize(spline_order, coefficients.size());
      
      if(knots.size() == 0)
        for(size_t i = 0; i < object.n_knots(); ++i)
          object.set_knot(i, float_t(i));
      
      if(knots.size() != 0 && knots.size() != object.n_knots())
        throw Exception("Wrong number of knots in xml_handler<PeriodicBspline>::read_object().");
      
      for(size_t i = 0; i < coefficients.size(); ++i)
        object.set_coefficient(i, coefficients[i]);
      
      for(size_t i = 0; i < knots.size(); ++i)
        object.set_knot(i, knots[i]);
    }
    
    void write_object(const PeriodicBspline<DATA_t> & object, XmlWriter & out) const
    {
      out << XmlWriter::element("spline_order") << object.spline_order() << XmlWriter::end_element;
      
      out << XmlWriter::element("spline_order") << object.spline_order() << XmlWriter::end_element;
      
      for(size_t i = 0; i < object.n_coefficients(); ++i)
        out << XmlWriter::element("coefficient") << object.coefficient(i) << XmlWriter::end_element;
      
      for(size_t i = 0; i < object.n_knots(); ++i)
        out << XmlWriter::element("knot") << object.knot(i) << XmlWriter::end_element;
    }
  }; 
    
  template<>
  template <class DATA_t>
  const std::string xml_handler< PeriodicBspline<DATA_t> >::element_name = "periodic_spline_curve";
  template<>
  template <class DATA_t>
  class xml_handler< Bspline<DATA_t> >
  {
  public:
    static const std::string element_name;
    
    void read_object(XmlReader & in, Bspline<DATA_t> & object) const
    {
      std::vector<float_t> knots;
      std::vector<DATA_t> coefficients;
      size_t spline_order;
            
      in >> XmlReader::element("knot") >> knots;
      in >> XmlReader::element("coefficient") >> coefficients;
      in >> XmlReader::element("spline_order") >> spline_order >> XmlReader::end_element;
      
      object.resize(spline_order, coefficients.size());
      
      if(knots.size() == 0)
        for(size_t i = 0; i < object.n_knots(); ++i)
          object.set_knot(i, float_t(i));
      
      if(knots.size() != 0 && knots.size() != object.n_knots())
        throw Exception("Wrong number of knots in xml_handler<Bspline>::read_object().");
      
      for(size_t i = 0; i < coefficients.size(); ++i)
        object.set_coefficient(i, coefficients[i]);
      
      for(size_t i = 0; i < knots.size(); ++i)
        object.set_knot(i, knots[i]);
    }
    
    void write_object(const Bspline<DATA_t> & object, XmlWriter & out) const
    {
      out << XmlWriter::element("spline_order") << object.spline_order() << XmlWriter::end_element;
      
      out << XmlWriter::element("spline_order") << object.spline_order() << XmlWriter::end_element;
      
      for(size_t i = 0; i < object.n_coefficients(); ++i)
        out << XmlWriter::element("coefficient") << object.coefficient(i) << XmlWriter::end_element;
      
      for(size_t i = 0; i < object.n_knots(); ++i)
        out << XmlWriter::element("knot") << object.knot(i) << XmlWriter::end_element;
    }
  }; 
    
  template<>
  template <class DATA_t>
  const std::string xml_handler< Bspline<DATA_t> >::element_name = "spline_curve";
}


#endif

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