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SEVENPAR for Windows

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Editors’ Review

Download.com staff
SEVENPAR calculates precise transformation parameters for Spatial Helmert and Molodensky transformations, enabling accurate coordinate shifts between reference systems for GIS and GPS software.
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SEVENPAR 0/1

  • Pros

    • Calculates parameters for Spatial Helmert and Molodensky transformations
    • Supports Cartesian, geographical, and UTM coordinates
    • Includes ellipsoidal height with selectable ellipsoid dimensions
    • Tests identical point coordinates for outliers and deviations
    • Documents parameter quality with residual matrix and RMS deviations

  • Cons

    • Requires a set of identical points with known coordinates
    • Relies on official institutions for high-order measuring points
Icon of program: SEVENPAR

SEVENPAR for Windows

Download now

Used SEVENPAR for Windows?

Explore More

Full Specifications

GENERAL
Release
Latest update
Version
3.11
OPERATING SYSTEMS
Platform
Windows
Operating System
  • Windows 7
  • Windows 95
  • Windows Vista
  • Windows 98
  • Windows XP
  • Windows 10
  • Windows NT
  • Windows 2000
Additional Requirements
None
POPULARITY
Total Downloads
190
Downloads Last Week
14
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Developer’s Description

By Killet Software
Calculate exact parameter sets for the Spatial transformation.
SEVENPAR is a tool for the calculation of transformation parameters for the Spatial Helmert and Molodensky Transformation, which make possible precise coordinate transformations from one reference system into another. The determined transformation parameters can be entered directly into transformation software, example TRANSDAT Coordinate Transformations, or into the calculation software of GPS receivers to do coordinate transformations. The seven or three transformation parameters are computed with a set of individual identical points. Those are points with known coordinates in both reference systems (geodetic datum). Cartesian coordinates, geographical coordinates or UTM coordinates with or without ellipsoidal height using the ellipsoid dimensions. Identical measuring points of higher order can be usually inquired or referred by the official institutions for measurement. The necessary ellipsoid half-axes and flattening are available in the program for the selection from lists. The coordinates of the identical points are tested on outliers and deviations by different statistic procedures. The quality of the computed parameters is documented by a residual matrix and by the computation of the middle, maximum, and root mean square (RMS) deviations.
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