| 摘要 |
PURPOSE:To make it possible to detect a net allowed to wire a hole position by mistake within a short time, by adding a hole free lattice point to net data and comparing only the net of the lattice point with the hole data in the vicinity thereof. CONSTITUTION:A net 1 shows an erroneous wiring row and a net 1 shows a correct wiring row. A point D1 having no through-hole on a lattice is defined as a lattice point. In the relation between the net data and hole data of each segment in the net, there are hole data at a start point, a via-point and a final point and no data are present at a fold point and the lattice point. A code is provided at every point of net data and, by performing predetermined description, only the net having the lattice point of the net data is selected and compared with the hole data to check whether a hole is present. By this method, the detection of erroneous wiring becomes easy. |
