2.0

Creating Existing Ground Cross Sections
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8 Do one of the following:
n
Type an additional station to sample. If you must sample more than one
additional station, press ENTER and type the additional station.
n
Type Point, and then on the plan view of the alignment, use your pointing
device to select the additional station locations you want to sample.
If the existing ground cross section information already exists, then the
following prompt is displayed:
Overwrite existing section data (Yes/No) <Yes>:
9 Type Yes or No:
n
Type Yes to delete the existing ground cross section information, then
resample it based on the current settings.
n
Type No to keep the existing ground information and merge the new
information into the cross sections that were created previously (from a
different surface). However, existing ground section data will be overwritten
if you are sampling the same surface that was sampled previously.
NOTE
If a cross section does not cross the surface, then the command displays the
following message:
WARNING: Some sections failed to cross the alignment and
will be missing from output.
When a section is completely outside the surface area, the existing ground
information cannot be calculated so that the section is not created.
Changing the Cross Section Sampling Settings
To control how the existing ground is sampled for cross section data when you
use the Sample From Surface command, establish the Section Sampling Settings.
These settings control how much of the existing ground is sampled (the swath
width), whether you are prompted to enter additional stations to sample,
whether sample lines are imported onto the plan view of the alignment, and
more.