LTOP
LTOP allows pre-analysis and compensation of polygon networks, triangulation networks, combinations of GNSS observations and terrestrial measurements as well as levelling networks.

Pre-analysis and adjustment software for geodetic networks
LTOP offers several computing facilities and indicators in order to optimise the compensation and detect errors or inaccuracies. The observations can be adjusted by the smallest squares or the robust method.
Possibilities and properties
- Horizontal and vertical adjustments are processed separately (2D+1D)
- Free adjustment, coordinates of the connection points as observations or constraint adjustment
- Calculations based on projected or ellipsoidal coordinates
- For directions, azimuths and distances, up to 9 groups can be defined with individual unknowns of orientation, scale or offset
- Several possible parameter calculations for the integration of GNSS observations
- Strict treatment of accuracy and reliability parameters and required tests for use in the Swiss cadastral survey
- Graphic depiction of surveying network plans and results of network compensation (planimetry and/or altimetry; PLANETZ software is required)
Additional information
Download applications
LTOP
Full installation package - Version 99.6 für Windows (Linux version on request)
LTOPWIN
Practical and intuitive graphical user interface for the preparation of a LTOP adjustment - Version 97.4 for Windows
PLANETZ
Graphical representation of networks computed with LTOP - Version 2008.1 for Windows (Linux version on request)
P.O. Box
3084 Wabern
- Tel.
- +41 58 469 01 11