Leica TC605 User Manual page 67

Reference line
© Leica
Setting out a drive way
known:
• Office building with projected driveway and
specified slope.
• Base line 1-2 (e.g. street)
Procedure:
• Assign slope of driveway with the help of height
coordinates.
• Aim reflector.
• Output of ∆T, ∆L, ∆H
N
α
2
1
The height of base points "1" and "2" can be entered in
such a way that the slope of the base line corresponds to
the slope of the driveway. Subsequently, the rotation
angle Ang = α is entered turning on point "1" the base
line with constant slope angle so that the line is parallel
to the driveway.
When starting a measurement at position "A*" the
instrument determines automatically the offset (∆Τ)
from the edge of the driveway and the difference to the
designed height "∆H".
The prism pole can now be moved towards the edge of
the driveway until finally "∆T = 0" is shown, marking
the line for the edge of the driveway.
TC605/TC805/TC905/L-1.1.1en
A*
+∆T
+∆L
A
B
driveway
67