Placing elements in a 2D model is like manual drafting — all elements appear on the same plane, the sheet of paper.

In 3D, you place elements in space — horizontally (for example, a floor), vertically (for example, a wall), or at any other angle or direction (for example, a sloping roof).

Many elements rely on the orientation of the view, AccuDraw's drawing plane, or the current auxiliary coordinate system if the ACS Plane Lock is on, for exact placement. To place elements such as blocks (rectangles), circles (by center), polygons, cells, and text, you have these choices:

• Rotate a view so that the plane of the view (your screen) is parallel to the required orientation.
• Use AccuDraw or work with 3D auxiliary coordinate systems.