CONSTRUCTIVE_SOLID_GEOMETRY_2D

e	Area_with_outer_boundary
d	Boolean_operand_2d
e	Boolean_result_2d
e	Complex_area
d	Compound_inner_area_boundary
d	Csg_2d_area_select
e	Csg_2d_shape_representation
d	Csg_2d_shape_select
e	Csg_primitive_solid_2d
d	Csg_select_2d
e	Csg_solid_2d
s	Primitive_2d_subtypes
e	Primitive_2d_with_inner_boundary
d	Set_inner_area_boundary
e	Single_area_csg_2d_shape_representation
e	Single_boundary_csg_2d_shape_representation