#include <xmlio.hpp>
#include <spline/xmlio.hpp>
Read and write periodic B-Spline curves from XML files. The format of the XML object is as follows:
<periodic_spline_curve> <spline_order>3</spline_order> <!-- optional, if no knots are provided, equidistant knots starting at 0 are used (as below) --> <knot>0.0</knot> <knot>1.0</knot> <knot>2.0</knot> <knot>3.0</knot> <knot>4.0</knot> <!-- use the right string represention of DATA_t within the coefficient-tags --> <coefficient>(0, 0)</coefficient> <coefficient>(1, 0)</coefficient> <coefficient>(1, 1)</coefficient> <coefficient>(0, 1)</coefficient> </periodic_spline_curve>