Last update: February 20, 2016


  NETIST (updated version)   


Least-squares adjustment, statistical testing and quality control of 1D/2D/3D geodetic networks.

Program features: station data and observation data input by a single txt or xls file, manual data editing by user-friendly menus, automated computation of approximate coordinates, integration of classic surveying observables and GNSS baselines, use of curvilinear geodetic coordinates or planar Cartesian coordinates, user-selected map projections and reference ellipsoids, variance component estimation for different observation groups, choice of absolute or weighted datum constraints, computation of data-noise and datum-noise effect on estimated coordinates, statistical tests and network quality control, extraction of normal equations (NEQ), height network adjustment with heterogeneous data and auxiliary parametric models for systematic effects.

Download program here (version 1.2.2, 4/02/16)

See revision history here

Guidelines for input data file here

Sample projects:  1D-network2D-network3D-network3D-network (local)GPS-network

See also: readme file

  Transform_Auth


Forward and inverse coordinate transformation between the Old Hellenic Datum (HATT projection, Bessel ellipsoid, 30'x30' blocks) and the Hellenic Geodetic Reference System of 1987 (single-zone transverse Mercator projection, GRS80 ellipsoid).

Program features: three different options are available in the program including (i) the use of the official polynomial model provided by the National Cadastre and Mapping Agency, (ii) the use of a local similarity transformation model, and (iii) the use of a local affine transformation model. The last two options require the availability of at least three common points between the two systems, and they are applied "on top of" (as additional correction to) the initial result obtained by the official polynomial transformation.

Download self-extracting archive with all p-code and figure Matlab files here
(unpack and run directly in Matlab command window by typing 'TRANSFORM_AUTH_menu')

Download polynomial transformation coefficients file here
(official version with few extra corrections)

Sample input/output files: HATT coordinates,  EGSA87 coordinates,  polygons,  results

See also: readme file

  EGM-transf


Transformation of fully-normalized spherical harmonic coefficients (and their standard deviations) of a global geopotential model from its inherent reference frame to another Earth-fixed reference frame. The used algorithm is based on Kleusberg's linearized formulae given in: The similarity transformation of the gravitational potential close to the identity, Manuscripta Geodaetica, 1980, vol. 5, pp. 241-256.

Download p-code file here  
(run directly in Matlab command window by typing 'EGMtransf')

Sample input file:  example

See also: readme file

  2fit

Least-squares adjustment and statistical quality control of 2D surveying networks.

Download program here

  DEROS

Least-squares adjustment and statistical quality control of 1D/2D surveying networks (with additional utilities for the station adjustment of horizontal directions and the rigorous adjustment of traverses).

(*) To run this program in Win7/Win8 you need to use an x86 MS-DOS emulator (e.g. DOSBox)

Download program here

See also: help file

  SMANET

Least-squares adjustment and statistical quality control of 3D close-range networks.

(*) To run this program in Win7/Win8 you need to use an x86 MS-DOS emulator (e.g. DOSBox)

Download program here

  

To report any bugs that may be encountered when using the above programs or to provide any comments please send me an email by clicking here.

 
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