Here is a quick fix for accurately rotating plan views where someone has rotated a plan view incorrectly. It may seem trivial but it is actually important that rotated plan views are at exactly the same angle as the part of the building they are displaying – this is so that the view-based orthogonal directions match the building. If this is a fraction of a degree out, you will end up with all kinds of tiny but incremental differences that will surely cause problems.
When rotating a view, the simplest method is to make the view crop boundaries visible, then select the boundary and use the rotate command. If someone types in an angle that is not to a whole degree, it will almost certainly not be the same as the actual rotation of the building elements. Even if you snap to elements, it is easy to make an error.
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