LTOP / LTOPWIN
Pre-analysis and adjustment software for polygon networks, triangulation networks, combinations of GNSS observations and terrestrial measurements as well as leveling networks.
LTOP offers several computing facilities and indicators in order to optimize the compensation and to detect errors or inaccuracies. The observations can be adjusted by least squares or robust method.
LTOPWIN is a practical and intuitive graphical user interface for the preparation of a LTOP adjustment. This program also offers an extensive help system to LTOP options and settings.
LTOP 99.6.1 (03.03.2009) / LTOPWIN 97.4.7 (10.12.2003)
Restrictions of the trial version:
- Unknown planim. points: 25
- Unknown altim. points: 75
- Number of stations: 100
- Number of coordinates: 100
- Number of measures: 250
LTOP:| Software system: | Windows / DOS / Linux |
| Languages: | German / French / English |
LTOPWIN:| Software system: | Windows |
| Languages: | German / French |
| Remarkes: | LTOP required |
Input data
- LTOP coordinate file
- LTOP measurement file
- Control file with the necessary control parameters
Output
- LTOP file with adjusted coordinates
- Printer-optimized protocol file, with all the details and results
- IPL file for input in the PLANETZ software
Possibilities and properties
- Horizontal and vertical adjustments are processed seperately (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, until 9 groups can be defined with individual unknowns of orientation, scale or offset
- Several possible parameter estimations for the integration of GNSS observations
- Strict treatment of accuracy and reliability parameters and necessary tests for the use in Swiss cadastral surveying
Other posibilities
- Drawing of plans (position and/or height (software PLANETZ required)
- Interactive help (LTOPWIN)
Screenshots

General parameters (LTOPWIN)

Horizontal adjustment (LTOPWIN)

Vertical adjustment (LTOP)

GPS parameters (LTOPWIN)
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GeodesyLast updated: 01.05.2012