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Select any break lines (optional) – Spectra Precision Survey Pro v4.5 Ranger User Manual User Manual

Page 111

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DTM Stakeout

101

a. All the polylines in the current

job are displayed. Select the

appropriate polyline and tap
to return to the Setup DTM 3D

screen.





9. If a boundary is used, you must also select

one of the two radio buttons in the Setup

DTM 3D screen:

~

Exclude points…: will move any objects that

occur outside the selected boundary to the

Auxiliary layer.

~

Discard the boundary…: will initially move

any points that exist outside the boundary to

the Auxiliary layer. If a point is later stored

outside the boundary, the selected boundary is
automatically unselected.

Select any Break Lines (optional)

Break lines are polylines that define any linear object on the surface

you are staking such as a trench, a fence, or the face of a cliff. No
TIN will pass through a break line when generating the DTM surface.

If a boundary is selected, the entire break line must fall inside the

boundary. If any part of a break line touches the boundary, the break
line is invalid.