| 摘要 |
PROBLEM TO BE SOLVED: To provide a three-dimensional data display capable of easily performing transformation from three-dimensional graphic data to two-dimensionally displayed coordinate data of a planar graphic and to easily predict contents of graphic display after the transformation and a recording medium in which a three-dimensional data transformation program is recorded. SOLUTION: When the data transformation program recorded in the recording medium 2 is started, the three-dimensional graphic data which is selected from a three-dimensional graphic database 3 by a user is read, data (Xw, Yw, Zw) of a three- dimensional world coordinate system is transformed to data (Xs, Ys) of a two-dimensional screen coordinate system by using a prescribed function including angles Tx, Ty, Tz for a horizontal coordinate axis of the screen coordinate system of each coordinate axis of the three-dimensional world coordinate system in the screen coordinate system, rate of extension and contraction Sx, Sy, Sz of each coordinate axis in the three-dimensional world coordinate system in the screen coordinate system and each component Xw, Yw, Zw of three-dimensional world coordinate system data and the transformed data is displayed on the display 5 by a personal computer 1. |
