Shadow Previous and Next Rings

When the rings along a drive are aligned and parallel, it is useful to be able to use the previous or next ring as a guide while editing the current ring. To allow this, buttons on the Ring Design toolbar allow you to toggle the display of the previous or next ring when the display is in Ring Edit mode.

When these toggles are enabled, the previous and next rings are shown in shadow. Shadow towards and away sections are based on the chainage distance between the rings.