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GeoTransform Package

GeoTransform Package  Point of Contact:  Dr Martin Reddy

Mailing address:
AI Center
SRI International
333 Ravenswood Avenue
Menlo Park, CA 94025-3493

Home page at http://www.geovrml.org/geotransform

   Software Description

This package provides efficient and accurate geographic coordinate transformations in the Java language. Most of these are based on mathematical approximations that eliminate many of the trigonometric calls used in the exact solutions. They are accurate to within a one millimeter error ball of the exact solution, while being substantially faster. Other transforms are provided through community contributions and may offer less accuracy and efficiency. The currently supported coordinate systems are defined as follows:

  • Geodetic Coordinate System ( GDC)
  • GeoCentric Coordinate System (GCC)
  • Universal Transverse Mercator (UTM)
  • Mercator (MER)
  • Lambert Conformal Conic (LCC)
  • Ordinance Survey Great Britain (OSGB)

The GDC, UTM, and GCC algorithms first appeared as part of the SEDRIS Coordinate Transformation API and were subsequently modified for this package. The OSGB, MER, and LCC algorithms were contributed through community involvement and are not derived from the SEDRIS API. This package is not part of the SEDRIS project, and the Java code written for this package has not been certified or tested for correctness by NIMA.

   Developers

Name Title E-mail
Iverson, Lee A Alumnus
Leclerc, Yvan G Alumnus
Reddy, Martin Alumnus

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