PROBLEM TO BE SOLVED: To accelerate processing and to improve efficiency by reducing disk operation at the time of retrieving mesh data. ;SOLUTION: Mesh numbers (n) and (m) showing the positions of respective meshes (such as object mesh 2) on a drawing are converted to code data as codes for information conversion such as ASCII code data, for example, these data are used for the file name of a relevant mesh file and further, the relevant code data are held in a directory form in a main storage device 4. Besides, an OS charges the management of date and time of the mesh file as well.;COPYRIGHT: (C)2001,JPO
展开▼