| 摘要 |
PROBLEM TO BE SOLVED: To provide a graph display device which accurately designates a range in which a graph is expanded. SOLUTION: A graph based on data is stored in a graph storage area (S1). A rectangular area in which a range where a graph is expanded and shown is set in the graph storage area (S2). The graph and the rectangular area are displayed based on the graph storage area (S3). An operator operates the rectangular area and designates an expansion area (S4), observing the displayed rectangular area. The graph in the rectangular area is expanded and displayed (S5 and S6). When he wants to expand a part except the designated part, the S3 to S6 are repeatedly performed (S7). Then, since a range where he wants expand the graph is designated by the rectangular area that is preliminarily set, it is possible to accurately set a desired expansion range. |
