| 摘要 |
PURPOSE:To convert three-dimensional shape data to drawing information composed of two-dimensional shape data with a simple method and to enable the display and output of the information by displaying a second plane drawing at a position corresponding to the direction of a view point to a first plane drawing around the first plane drawing on the same two-dimensional plane. CONSTITUTION:After three-dimensional shape data DTs expressing free curved surfaces are prepared by a free curved surface preparing device 2, a making- into-drawing supporting device 3 generates drawing data DTL composed of the two-dimensional shape data based on the three-dimensional shape data DTs and transmits these generated data to a manufacture section 4. Namely, the first plane drawing observing a basic graphic composed of the three- dimensional shape data formed in the three-dimensional space from the prescribed first view point direction and the second plane drawing observing the first plane drawing from the second view point direction around an axis with the first view point direction as the axis are hierarchically generated. Then, the second plane drawing is displayed at the position corresponding to the view point direction to the first plane drawing around the first plane drawing on the same two-dimensional plane and outputted. |
