=
"Class hierarchy: :class:`freestyle.types.StrokeShader` > "
":class:`ConstrainedIncreasingThicknessShader`\n"
"\n"
"[Thickness shader]\n"
"\n"
".. method:: __init__(thickness_min, thickness_max, ratio)\n"
"\n"
" Builds a ConstrainedIncreasingThicknessShader object.\n"
"\n"
" :arg thickness_min: The minimum thickness.\n"
" :type thickness_min: float\n"
" :arg thickness_max: The maximum thickness.\n"
" :type thickness_max: float\n"
" :arg ratio: The thickness/length ratio that we don't want to exceed. \n"
" :type ratio: float\n"
"\n"
".. method:: shade(stroke)\n"
"\n"
" Same as the :class:`IncreasingThicknessShader`, but here we allow\n"
" the user to control the thickness/length ratio so that we don't get\n"
" fat short lines.\n"
"\n"
" :arg stroke: A Stroke object.\n"
" :type stroke: :class:`freestyle.types.Stroke`\n"