• Antelope Release 5.5 Linux 2.6.32-220.el6.x86_64 2015-04-21

 

NAME

ustrans - transformation from standard spherical to local coordinates

SYNOPSIS

#include "gclgrid.h"
dmatrix ustrans(GCLgrid& g, double lat, double lon);

SUPPORT


Contributed code: NO BRTT support.
THIS PIECE OF SOFTWARE WAS CONTRIBUTED BY THE ANTELOPE USER COMMUNITY. BRTT DISCLAIMS ALL OWNERSHIP, LIABILITY, AND SUPPORT FOR THIS PIECE OF SOFTWARE.

FOR HELP WITH THIS PIECE OF SOFTWARE, PLEASE CONTACT THE CONTRIBUTING AUTHOR.

DESCRIPTION

Sometimes it is useful to work in a local, Cartesian reference frame with a standard convention with x1 positive east, x2 positive north, and x3 positive up. This routine computes a transformation matrix from the standard geographic Cartesian reference frame (origin at Earth's center, x1 pointed at intersection of the prime meridian and the equator, x2 pointed at 90 east and the equator, and x3 pointed at the north pole) to a local coordinate system at (lat,lon).

RETURN VALUES

The result is returned as a 3x3 matrix defined as a simple dmatrix object.

LIBRARY

-lgclgrid

SEE ALSO

dmatrix(3)

AUTHOR

Gary Pavlis
Indiana University
pavlis@indiana.edu

Antelope User Group Contributed Software
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