ISO/TS 10303-1731:2019 specifies the application module for
Constructive solid geometry 2D.

The following are within the scope of
ISO/TS 10303-1731:2019:

• constructive solid geometry in 2D;
• half space;
• 2D primitives;
• replication of a solid model with possible linear transformation;
• items within the scope of application module Area 2d, ISO/TS 10303-1631;
• items within the scope of application module Basic curve, ISO/TS 10303-1651.