=
"Class hierarchy: :class:`freestyle.types.UnaryFunction0D` > "
":class:`freestyle.types.UnaryFunction0DDouble` > :class:`GetXF0D`\n"
"\n"
".. method:: __init__()\n"
"\n"
" Builds a GetXF0D object.\n"
"\n"
".. method:: __call__(it)\n"
"\n"
" Returns the X 3D coordinate of the :class:`freestyle.types.Interface0D` pointed by\n"
" the Interface0DIterator.\n"
"\n"
" :arg it: An Interface0DIterator object.\n"
" :type it: :class:`freestyle.types.Interface0DIterator`\n"
" :return: The X 3D coordinate of the pointed Interface0D.\n"
" :rtype: float\n"