Abstract: A figure selection method and device including a retrieval operation of a figure element adjacent to a designated figure element where a figure is formed by a plurality of figure elements. According to an aspect of the present invention, the retrieval operation is configured to retrieve a figure element neighboring the designated figure element such that the designation is automatically accomplished without individually designating each of the figure elements neighboring the designated figure element. The retrieval operation is further configured to perform a retrieval process a predetermined number of times such that figure elements adjacent to or in the neighborhood of figure elements are automatically designated the predetermined number of times.

Abstract: The CAD system includes primary-geometric data extraction means for extracting primary geometric data from a CAD object selected; primary-geometric-condition determination means for deriving a geometric condition from the primary geometric data; automatic recognition means for performing automatic recognition of a CAD object that satisfies the geometric condition with respect to the selected CAD object; secondary-geometric data extraction means which extracts secondary geometric data from the additionally selected CAD object; and secondary-geometric-condition determination means for deriving a geometric condition from the secondary geometric data. The automatic recognition means performs automatic recognition of a CAD object that satisfies the geometric condition derived by the secondary-geometric-condition determination means with respect to the first selected CAD object, the automatically recognized CAD object that satisfies the first derived geometric condition, and the additionally selected CAD object.