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Description language 1Description language 2Description language 3Description language 4
PlatformLicenseASP member
ClassSpecificCategory
NamePublisher/developer
KeywordsDescription
      
NTv2Creator 2.09
Company: Killet GeoSoftware Ing.-GbR
Country: Germany, NRW, Kempen
ASP member: No
Company Web site: https://www.killetsoft.de
Site of program: http://www.killetsoft.de/p_ntca_e.htm
Application info: http://www.killetsoft.de/p_ntca_e.htm

Author: Fred Killet

Sales email: info@killetsoft.de
Support email: info@killetsoft.de

License type: Shareware
Class: Education::Geography
Specific:
Categories: geography, geodesy, geo, measurement, spatial, comculators, converter, transformation, science, mathe, misc, other
Platform: Windows
OS: Win2000, WinXP, Win7 x32, Win7 x64, Windows 8, Windows 10, WinServer, WinOther, WinVista, WinVista x64
System requirements: Pentium, 30 MB HD
Language: English, German
Limitations: Predefined test files with identical points. Predefined configuration files

     
Keywords: modelling, modeling, creation, create, generate, calculate, ntv2 file, ntv2, gsa, gsb, createing ntv2 file, modeling ntv2 file, geodetic, datum shift, datum, shift, ntv2creator, killetsoft

NTv2Creator geosoftware provides a powerful tool for modelling accurate NTv2 files from identical points in two different Reference Systems. The software analyses two files with identical points and suggests the boundaries and mesh sizes which can then be changed manually. Finally, a highly accurate NTv2 file is generated using small-scale three-dimensional 7-parameter Helmert transform around each grid point and subsequent Natural Neighbour Interpolation for residual gap distribution. NTv2Creator provides three different mathematical models for the modelling of NTv2 files.
At the beginning of the processing, the coordinates of the identical points are tested for outliers and deviations using statistical methods. Then all grid points are calculated. To calculate a grid point, the program NTv2Creator collects all identical points from the point files of the source reference system and the target reference system, which lie in a certain radius around the grid point. With these points a small spatial three-dimensional 7 parameter Helmert transformation is performed. During the subsequent coordinate transformation of the grid point of the source reference system, the Helmert parameters determine the coordinate of the same grid point in the target reference system. To increase the accuracy the Natural Neighbour interpolation is used for the distribution of the residual gaps. The difference between the coordinates of the grid point in both reference systems is entered as a shift value in the NTv2 file. The calculated shift values include the compensation of regional and local tensions and they consider the different dimensions and bearings of the ellipsoids used in both reference systems.
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 0    
8.18 MB

~570.00$
~479.23€
DateVersionStatusRelease history
15 Jun 20212.09Major UpdateProgram is faster and more stable using a new development system. Outliers can be excluded from the calculation. Calculated coordinates can be written to external files. New chapter about structure and format of NTv2 grids in the help file. The quality check displays deviations in clusters.
Distribution permissions: Hereby Killet GeoSoftware Ing.-GbR permits to distribute their software NTv2Creator exclusive as shareware version on data media and in the online media up to revocation. We guarantee to possess all rights on the software. We exempt the legal distributor of our software from requirements third. With the revocation of the permission all projects in work with our software may be led to the end.

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