Gravity Frame
A Gravity Frame hidden-point definition was added to facilitate survey applications and pin nest measurements. A single point can be used to compute a point shifted along an axis with respect to a specified frame. This allows a single point to be all that is needed for this Hidden-Point Bar measurement.
Gravity Frame measurements are compensated along the Z-axis of the specified Reference Frame by the specified Offset or by the offset value entered in the measurement string.
Measurement examples are as follows:
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lf you measure a point “<PtName>$<Bar index>” the hidden point will be computed using the default bar offset
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If you measure a point “<PtName>!<Z-Axis Offset>$<Bar in- dex> the hidden point will be compensated by the entered value “!<Z-Axis Offset>”.
Note that you can also use the Gravity Bar Name directly instead of the Bar index.