Basic 3D Point Definition Modes

There are three basic ways of giving a 3D point, which are EVENT, KEYIN and OFFSET FROM CURRENT. The EVENT mode requests the user to indicate an event point in an arbitrary view (projection). To switch to 2D mode, just select one of the 2D point definition modes in the toolbar.

The KEYIN mode prompts the user to key in the coordinates (x,y,z) of the point. To return to the 3D request menu, just type <CR> or select cancel. The OFFSET FROM CURRENT mode requires that the current point is set and produces the same result as:

1. selecting the ADD OFFSET command and

2. defining a point equal to the current one. The offset command is added in the same way as in the sub-function ADD OFFSET, see below.