ment is modified, by inserting or removing an element, and the chainage val-
ues in the horizontal alignment are not recomputed. This situation can occur
when editing manually or editing with a program that does not automatically
recompute. Chainage equations define leaving a gap or allowing an overlap at
certain chainages.
The elements involved in the equations are:
•
chainage back
•
chainage ahead.
The class describes the type of coordinate triplet.
Description of classes
The following table shows the classes in descending hierarchical order.
Class
Characteristic
Description
Control
Type
Control points. Automatically assigned to
entered points or manually assigned to
calculated points from COGO.
Instrument
source
GS, TS or Infinity
Number of trip-
lets
One
Adjusted
Type
Adjusted points using the adjustment
program.
Instrument
source
Infinity or Leica Captivate (Measure fore-
sight)
Number of trip-
lets
One
Reference
Type
•
Reference point received by a real-
time rover
•
Point set by Setup app.
Instrument
source
GS, TS or Infinity
Number of trip-
lets
One
Average
Type
Averaged point calculated when more
than one coordinate triplet of class
Measured
exist for the same point ID
unless
When a point is stored with
same point ID as existing point
:
Don't
check
in the
Duplicate Points
panel.
Instrument
source
GPS or TS
Number of trip-
lets
One
Measured
Type
•
Measured points differentially correc-
ted using real-time phase, real-time
code or post-processing.
•
Measured points with angles and
distances.
Class
1038
Glossary
