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B Tip
In the Field 5
A line, area, or quickmark offset can also be displayed and entered as a
horizontal distance, a vertical distance (above the horizontal) and a
direction:
You can toggle between these two modes of offset display and entry
by pressingf.
Note – All Asset Surveyor features (points, lines, areas, or
quickmarks) can have only one offset associated with them. You
cannot have two or more offsets for a single feature. This means that
to record a line feature with a given offset and then change the offset
part-way through the line feature, you need to segment the line at that
point (each segmented line feature has its own offset). You must
carefully plan how to collect an area feature using offsets, as the same
offset value must apply to the entire area feature.
– Because an offset is a three-dimensional modification to your GPS
position, you can use offsets to record the full three-dimensional position
of completely inaccessible features such as the top of a tree or a ledge
part-way up a cliff.
Every feature recorded with the Asset Surveyor software has an offset
associated with it. If you are able to actually position your GPS
receiver over the feature, as is generally the case, the offset is zero.
TSC1 Asset Surveyor Operation Manual 89