| 摘要 |
PROBLEM TO BE SOLVED: To display an optional state on a screen as a three-dimensional image despite a small quantity of information by instructing a desired merchandise, accessing a data base to extract the three-dimensional information on the merchandise, plotting the three-dimensional image of the merchandise according to the extracted information on the merchandise and displaying the plotted three-dimensional image. SOLUTION: An extraction means (screen state control part) 12 inputs a material information list necessary for displaying a screen in a starting mode from an initial state setting file 28. A screen state setting part 12 extracts the necessary information from a data base part 10 and a text information processing part 14 according to the inputted material information. Each of drawing/reproducing parts 16-24 is instructed to perform a plotting operation on a screen. Thus, every screen plotting part plots an initial screen on the screen. If the text information must be processed, this information is sent to the part 12 after an arithmetic operation is carried out at the part 14. Meanwhile, the data which are inputted from the part 10 and has not to undergo any arithmetic operation are sent to the part 12 as they are.
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