| 摘要 |
A CAD apparatus includes a layer-information storage unit and a layer displaying unit. The layer-information storage unit stores therein information that defines a superposing order, availability of display, and availability of edit of layers that form graphic data subjected to processing. When displaying a layer that is defined as available to be displayed, if the layer is an individual page layer that includes elements different per page, the layer displaying unit displays only elements associated with a page determined to be displayed from among elements included in the layer; and if the layer is an all-page common layer that includes elements common to all pages, the layer displaying unit displays all elements included in the layer.
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