Plane Defined by Three Points

If there are any points in the select list when you enter this function, these points will define the plane. If no points (or less than three) are in the select list, the program will ask you to define the missing points. Each point can be of any of the four types described in The Point Function.

When modifying an existing plane of this type, the following form is used:

Figure 2:28. Pop-up menu for modification of plane defined by three points.

By selecting Modify Point 1, Modify Point 2 or Modify Point 3 you can modify the corresponding definition point. The Select Type button lets you change the type of the plane to any of the plane types described in this section. Ok quits the Modify function and recreates the plane.