Spectra Precision Survey Pro v4.5 Recon and Nomad User Manual - Manual (Page 195)

Other Tutorials
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determines how many shots will be taken within the perimeter. The
more shots that are taken, the more detailed the surface scan will be,
but the longer it will take to complete.
3. In the Select Type of Surface Scan field, select if you want to
use either the Distance Grid method or Angle Grid method to
set up the surface to shoot. Each method is described below.
Distance Grid
The Distance Grid method requires three shots to be taken to define
the perimeter of the surface that you want to scan. The first and
second shots must be in the upper left and right corners of the surface
and the third shot can be anywhere along the lower edge of the
surface.
a. Enter a point name for the first (top-left)
point of your surface in the Point 1 field.
b. Aim the total station at the point and tap
Shoot 1. The New Point screen will open
where you can provide a new description
for the point before storing it.
c. Shoot Point 2 and Point 3 to define the
upper-right corner and bottom edge,
respectively, of the surface in the same
way Point 1 was shot.
Note: If any of the three points were stored during a
previous scan, the point numbers can be entered
manually without re-shooting them.
The Horizontal Distance Interval and Vertical Distance Interval fields are
used to configure the spacing between each shot taken within the
boundaries of the surface. The smaller the distances entered here, the
more shots will be taken, resulting in a more detailed surface, but
while taking more time to complete.
d. Enter the desired horizontal distance between each
shot of the surface being scanned in the Horizontal
Distance Interval field.