| 摘要 |
PROBLEM TO BE SOLVED: To facilitate specification of a closed region on a two-dimensional drawing indicating a planar shape of a design object.SOLUTION: In specifying a specific closed region (closed region) included in two-dimensional CAD data that is a planar drawing processable by a two-dimensional CAD application, deselection of a line element (non-target element) across a closed region desired to be specified is accepted, and closed regions including the released non-target element are extracted. By displaying a list of the extracted closed regions, specification of a closed region on a two-dimensional drawing is facilitated. |
