Please see the execution result of Distance Offset. The distance is calculated keeping a minimum clearance with the adjoining object, and the amount of the offset is calculated. It enables the offset amount to be changed according to the objects location. By using Distance Offset, the etching correction can be executed as what you require in a short time. Looking at distance with adjoining data, it is altogether automatic, internal calculation is carried out, and a result is made to reflect. Of course, since it performs maintaining the minimum clearance value, a result which is not realistic is not brought. Furthermore, the whole data can be divided into some area and a separate setting value can also be prepared in each. The command and it which can apply the optimal offset to any places free are Distance Offset.