Regenerating the image
The Graphics > Orientation > Regenerate (F5) menu command (also on the Orientation toolbar) regenerates and redraws the image without changing any parameters that specify the image.
Any operation that causes information to be added or removed from the image will also cause the image to be regenerated. The image is always regenerated prior to printing.
Impact of zooming on symbols, diagrams and contours
Many of the operations dealing with the orientation, scaling and projection of the image do so without regenerating the display. This makes the display of the image much quicker and enables these operations to happen live on the full image. A consequence of this is that if, say, dots are drawn at nodes when the image is zoomed, the dots are zoomed by the same amount as the structure. The same applies to diagrams and contours, invalidating reported data scales. In this instance a message is reported in the legend to indicate that data scales are unreliable.
Regenerating causes the image to be re-established from the data and view settings resulting in all items being drawn at the intended scale.