Terminology - Leica GPS900 Series Technical Reference Manual

2.6
Description
Coordinate triplet
The class
Managing, Creating, Editing Points/Data

Terminology

• This chapter describes technical terms related to data management.
• Some characteristics only become relevant when a GPS1200, TPS1200 or LGO job is used
on GPS900.
• A measured point consists of three coordinate components - two horizontal components
and one vertical component. The generic term for the three coordinate components is
coordinate triplet. Depending on the class, a point ID can contain more than one coordi-
nate triplet of the same and/or of different classes.
• The class describes the type of coordinate triplet.
• The following table shows the classes in descending hierarchical order.
Class
CTRL
ADJ
REF
MEAS
Characteristic Description
Type • Control points. Automatically assigned to
entered points.
Instrument source • GPS, TPS or LGO
Type • Adjusted points using the adjustment
program.
Instrument source • LGO
Type • Reference point received by a real-time rover
Instrument source • GPS, TPS or LGO
Type • Measured points differentially corrected
using real-time phase or real-time code.
• Calculated from some application programs.
Instrument source • GPS, TPS or LGO
GPS900 29