Slice View
8.4 Grid Lines
Pressing this button overlays grid lines on the depth slice image, and cycles between ON,
PARTIAL or OFF. When set to ON, all the collected lines are displayed. When set to PARTIAL,
only some of the grid lines are displayed. This may be necessary for some larger grids as
having all the grid lines ON tends to obscure the image beneath (Figure 8-4). The currently
selected line is always shown in white.
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