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62
Viewbox Manual
Points without Auto edge-locking
The point that Viewbox expects you to digitize next is shown at the top of the
Digitize dialog box.
The sequence of digitization is determined by the Protocol that you have
selected. You can change the Protocol from the Protocol drop-down list box.
You can freely move forwards or backwards through all the available
points by clicking the Previous and Next buttons. Or, you can directly select
the point that you want to digitize from the drop-down list box at the top of
the Digitize dialog box.
During digitization of the cephalometric points, you have the option to
digitize each point more than once. At the completion of the digitizing
procedure, Viewbox will calculate the mean of the multiple attempts to
digitize each point and will use this as the best estimate of the point's
position. This method significantly reduces errors of landmark identification.
The large box in the center of the Digitize dialog is used to display the
multiple attempts to locate each point. For example, if a point is digitized
three times you may see the following picture:
The crosses represent the three attempts to locate the point. The red cross is
the last attempt. The maximum error in point location is shown above the
cross display and is 0.9 mm vertically and horizontally in this example.