21
JS by an
Measurement of parallel profiles
ion ele-
Guiding of the floating mark along defined profiles
)lved. If
with variable travel speed, use of various incre-
'eomodel
mental conditions for automatic point recording,
:ess,
e.g. profile measurement for orthophoto production
i. As a
íodel i s
Measurement of longitudinal and cross profiles
the
Guiding of the floating mark along longitudinal or
digiti -
cross profiles defined by an input file. Use of
lata is
manual or automatic recording data, e.g. for measuring
tion
terrain sections in road construction
ii comp
These functions already cover most of the tasks arising in this field.
analog
i th
2.3.2 XSEC
The XSEC program (cross section) is a comprehensive package specially geared
to route surveying in road construction.
Tipri ses
The sequence of axis elements consisting of lines, circular arcs or clothoids
is determined in a definition phase. The regular spacing of the stations can
be supplemented by randomly positioned intermediate stations, with the input
being performed either alphanumerically or by measurement. The length of the
cross profiles can be randomly defined. However, the definition of the route
may also be adopted from a different design program or read in via an inter
face. During the measurement process, the floating mark is guided along the
longitudinal and cross profiles; the operator selects the movement speed,
sets the height and triggers the measurements. The measurement progress is
logged on the graphic display terminal. The route may extend over several
models. The measurement can be interrrupted at any time, and editing func
tions permit the immediate correction of measuring errors. After completion
of all measurements, the data are output on an ASCII file and are available
for further processing. XSEC currently supports nine formats commonly used in
road construction today.
