Subtracting Objects

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Layout Editor User Guide >
Modifying Objects >
Subtracting Objects

1. Select the object from which you want to subtract other objects.

2. Select the objects you want to subtract.

3. On the Layout menu, point to Merge Polygons, and then click Subtract.

The new object retains the name, color, and material of the first object selected.

Union and Intersection operations support using selected objects on multiple layers, and each layer object is operated on separately. However, Subtraction is only allowed if the selected objects are on the same layer. Selected objects may be negative objects.

• If only negative objects are selected, the merge operation is performed the same as with positive objects, but the resulting objects remain negative objects.

• If both negative objects and positive objects are selected:

— Perform the union/intersection/subtraction operation on the positive objects

— Always union the negative objects

— Subtract the negative object result from the positive object result

Note

By default, the objects being subtracted from the first object selected are not preserved for later use. If you want to keep a copy of the objects being subtracted from the first object selected, do the following:

• Copy the objects, and then paste them back into the design after subtracting them.

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