=
"Class hierarchy: :class:`freestyle.types.UnaryFunction0D` > "
":class:`freestyle.types.UnaryFunction0DDouble` > :class:`DensityF0D`\n"
"\n"
".. method:: __init__(sigma=2.0)\n"
"\n"
" Builds a DensityF0D object.\n"
"\n"
" :arg sigma: The gaussian sigma value indicating the X value for\n"
" which the gaussian function is 0.5. It leads to the window size\n"
" value (the larger, the smoother).\n"
" :type sigma: float\n"
"\n"
".. method:: __call__(it)\n"
"\n"
" Returns the density of the (result) image evaluated at the\n"
" :class:`freestyle.types.Interface0D` pointed by the\n"
" Interface0DIterator. This density is evaluated using a pixels square\n"
" window around the evaluation point and integrating these values using\n"
" a gaussian.\n"
"\n"
" :arg it: An Interface0DIterator object.\n"
" :type it: :class:`freestyle.types.Interface0DIterator`\n"
" :return: The density of the image evaluated at the pointed\n"
" Interface0D.\n"
" :rtype: float\n"