| 摘要 |
<p>In a file (29, 30), the TDEV mask data information including the TDEV mask data constituted by connecting a plurality of line segments and a calculation expression for forming the TDEV mask data, are stored in advance. A readout section (32, 35) reads out a predetermined TDEV mask data information from the file. A display section (28) displays the line segment which is represented by the desired TDEV mask data information. An operating section (27) inputs information for changing at least one of the start point and the characteristic value to the desired value with respect to the line segment to be represented by the desired TDEV mask data information. A TDEV mask data change section (34, 37) receives information inputted by the operating section (27) and changes TDEV mask data information based on the calculation expression of the TDEV mask data information, and allows the display section (28) to display the line segment represented by the changed TDEV mask data information. <IMAGE></p> |
