European Space Agency

Royal Belgian Institute for Aeronomy

ut556 - vector conversion

subroutine  ut556(moldpos, mvfrom, mvto, trans)

Parameters:

• moldpos [zgeo,in] :: position in the “old” coordinate system.

• mvfrom [zvec,in] :: vector components in the “old” coordinate system.

• mvto [zvec,out] :: vector components in the “new” coordinate system.

• trans (3,3) [real8,in] :: transformation matrix.

Description

The subroutine ut556() converts vector components from a coordinate system to another according to the transformation matrix trans and the location moldpos in the “old” coordinate system, both passed as argument. Since the vector is expressed by its spherical components, the transformation is function of the position where it is evaluated. This position is passed to the subroutine in the “old” coordinate system.

History

• The subroutine ut556() does not exist in version 1.05 and earlier.

Diagnostics

None

Common Blocks

• uc160 - general constants

Dependencies

Called by

None

Calls

None

See also

• ut555 - coordinate conversion

Reported Bugs

None

Examples

None

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UNILIB/tags/v3.02