SEVENPAR (English) download - Spatial Helmert transformation - All free download

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SEVENPAR (English) 1.06

License:  Shareware
Price: $170.00
OS:  Win95, Win98, WinME, WinNT 3.x, WinNT 4.x, WinXP, Windows2000, Windows2003, Windows Tablet PC Edition 2005, Windows Media Center Edition
Filesize:  1.84 MB
Language:  English, German
Install Support:  Install and Uninstall
Requirements:  500 MHz, 128 MB Memory, 50 MB HD
Keywords:  conversion   ISO   rotation   seven   shift   frame   data   measurement   parameters   system   systems   reference   transformation   calculation   gps   coordinate   georeference   coordinates   geodetic   datum   geocoding   spatial   parameter   helmert   position   vector   19111  

SEVENPAR (English) 1.06
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The program produces a set with seven parameters of the sapatial Helmert transformation valid for an specific area, with which then arbitrary coordinates of the area can be transformed from one reference system into another with high accuracy. The seven transformation parameters are computed with a set of individual identical points. Those are points with known coordinates in both reference systems. For the computation at least three identical points must be present. In practice you will be anxious to use more identical points than those three necessities. The program supports upto 10.000 identical points. Cartesian coordinates or geographical coordinates with ellipsoidal height using the ellipsoid dimensions are suitable. Identical measuring points of higher order can be usually inquired or referred by the official institutions for measurement. The necessary ellipsoid half-axis are available in the program for the selection from lists. There are altogether to determine seven parameters, i.e. three translations, three rotations and a scale constant. The parameters are calculated by the compensation according to the method of the smallest squares (L2 norm, Helmert transformation). Therefore must be dissolved a formula system with seven equations and seven unknown quantities. The coordinates of the identical points are tested intensively on outliers and deviations by different statistic procedures. The quality of the computed seven parameters of the Helmert transformation is documented by a residual matrix and by the computation of the middle, maximum and root mean square (RMS) deviations. The seven parameters are presented in the three most usual standards. Those are the Coordinate Frame Rotation, the Position Vector Transformation and the European Standard ISO 19111.
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SEVENPAR (English) 1.06 - The Latest Versions History

SEVENPAR (English) 1.06 -> Aug 7, 2007 -> Major Update:
Maximal number of identical points increased to 10.000! Substantial more calculation speed by new, in C programmed GeoDLL! Supports Terminal Services on WINDOWS Servers (Citrix Terminal Server)!

SEVENPAR (English) 1.04 -> Jan 15, 2007 -> New Release:
Support of Terminal Services on WINDOWS Servers and Citrix Terminal Server! Adjustment of geodetic terms!

SEVENPAR (English) 1.03 -> Nov 24, 2006 -> New Release:
Support of Terminal Services on WINDOWS Servers and Citrix Terminal Server!

SEVENPAR (English) 1.02 -> Apr 22, 2006 -> New Release:
Prototype. Only small changes in the program.

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