GAP

Purpose:

To enable a user to make a gap in a geometric entity, (line, arc, contour, spline, ) based on an intersecting geometric entity or on two intersecting entities, with each entity being currently in a 2-D drawing.

Instructions:

1. In the Modify menu, click Trim, then Gap.

2. With the cursor, select the entity, (line, arc, or spline) in which the gap is to be created.

3. With the cursor select the first intersecting entity, (again a line, arc, or spline), picking a segment on the entity that is a close as possible to the intersection point. Repeat this for the segment on the intersecting entity that is as close as possible to the second intersection point. Note that the user can select two different intersecting entities in order to create the gap definition.

4. The system highlights the gap that is created and enables the user to accept or reject it.

5. If the entity, in which the gap is to be introduced, is of a closed contour form, then the user generally needs to select which part of the geometric entity to remove. The default is that the shortest length segment between the two intersection points is removed and this is what the user required to accept or reject. If they reject this then the system requires that they accept or rejects the other possible segment, again with the segment that is to be removed being highlighted. If the user rejects this segment then no gap is created.

Options:

The only options are to reject the gap that is created before it is incorporated in the definition of the selected entity and to select the required segment to be removed in order to create a gap in a closed contour.

Result:

A gap is added to the selected entity, based on the user selected intersecting entities, displayed on the screen and stored in the drawing file.