ON-GRID WIRING METHOD AUTOMATIC

PURPOSE:To provide a method for processing to generate a secondary terminal of a terminal not connected to a wiring grid while suppressing an increment of a wiring inhibit region to a necessary minimum limit. CONSTITUTION:Setting of a boundary line to a wiring inhibit region by initializing a wiring grid and generating a second terminal and the grid of an entire wiring terminal and further setting of a wiring pattern on the grid of a real wiring upon generation of partial second terminal are completed. A wiring route searching unit 2 searches a wiring route for connecting the terminal by using an on-grid router on the grid to generate a wiring pattern, converts the pattern to real wiring separated from the rig, sends it to a wiring result storage memory and stores it.