Importance

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Abstract

Techniques to manage position information of parts such that, if discrepancy of the parts occurs, the discrepancy can be detected and corrected while the advantages of using the constraint conditions can be offered. In one embodiment, when an input unit receives information of an icon click, a receiving section receives the information of the click, and a saving section saves the position and the angle of geographic data indicating the three-dimensional geometry of the part as absolute-position information calculated with reference to the absolute origin into the storage unit. Then, when updating geographic-data position information on the basis of relative-position information indicating the constraint condition in the assembly data, an updating section instructs a display-data output section to display the consistency/inconsistency with the stored absolute-position information on a display, and a correcting section corrects the updated geographic-data position information on the basis of the stored absolute-position information.

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First Claim