In my last post, I described the ALIGN command and how you can use it to move and rotate objects in 3D space. In this post I’ll compare it with the 3DALIGN command (3AL command alias).
The purpose of ALIGN and 3DALIGN is the same but the procedure differs. When you use the ALIGN command, you pick 3 sets of 2 points (source 1, destination 1; source 2, destination 2; source 3, destination 3). When you use the 3DALIGN command, you pick all the source points first and then pick the destination points. The following image illustrates the difference in pick points resulting in the same transformation.
The 3DALIGN command provides the added benefit of enabling you to copy the objects as you align them. Simply choose the Copy option before picking the source points. The selected object remains in its original location while a copy is automatically aligned according to your pick points.