Spectra Precision Survey Pro v4.5 Ranger User Manual - Manual (Page 115)

DTM Stakeout
105
18. Tap the Settings button to access the 3D
View Settings screen to configure the
information displayed in the 3D View
screen.
When Height Exaggerated to the Maximum
is checked, the height exaggeration is
automatically set to a high value to more
clearly display elevation differences in the 3D
view. When unchecked, the height
exaggeration can be set manually in the next
field.
Height Exaggeration Ratio: is the value that the height is
multiplied by in the 3D view. Higher values mean more
exaggeration; a value of 1.0 would result in no exaggeration.
When Hidden-line Removal is checked, all the lines that occur
behind other surfaces in the 3D View screen will be hidden.
The image shown here is identical to the image shown in the
screen above except the hidden lines are not removed.
When Display Difference from Ref. DTM is checked, the
vertical portion (z-axis) of the 3D View screen is computed by
the elevation differences between the non-reference DTM
surface and the reference DTM surface. This will result in
any objects that occur above or below the reference DTM to
clearly stand out as hills and valleys and the volume
information provided in the 3D View screen will be between
the staked points and the reference DTM.
When the Display Difference from Ref. DTM checkbox is unchecked, the
Datum field can be set to a reference elevation. Cut and fill volumes in
the 3D View screen will then be based on the difference of a
horizontal plane at the elevation specified here and the non-reference
DTM surface.
The View Direction (from view point to the center) settings allow you to
specify the exact horizontal and vertical angle in which to view the
DTM surface.
19. Tap from the 3D View Setting screen to return to the 3D View
screen.
Tap (close) from the 3D View screen to return to the DTM Shot
screen. From there you can continue taking DTM stake shots.