Constructive_solid_geometry_2d

e	Area_with_outer_boundary
e	Boolean_result_2d
e	Closed_curve_style_parameters
e	Csg_2d_model
e	Curve_style_parameters
e	Curve_style_parameters_with_ends
d	Extend_or_chord_2_extend_or_truncate_or_round
d	Extend_or_truncate
e	Path_area_with_parameters
e	Primitive_2d_with_inner_boundary
d	Primitive_or_boolean_result_2d
e	Single_area_csg_2d_model
e	Single_boundary_csg_2d_model
d	Square_or_round