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Subroutine MAP_CRYSTAL_ORIENT

Provenance of code.
Purpose of code.
Specification.
Description of subroutine's operation.
References.
Parameter descriptions.
Error indicators.
Accuracy estimate.
Any additional information.
Example of code
Auxiliary subroutines required.
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Provenance of Source Code

H.K.D.H. Bhadeshia,
Phase Transformations Group,
Department of Materials Science and Metallurgy,
University of Cambridge,
Cambridge, U.K.

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Purpose

Contains rotation matrices defining the symmetry operations of a cubic lattice.

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Specification

Language:	FORTRAN
Product form:	Source code

SUBROUTINE MAP_CRYSTAL_ORIENT(BEC)

REAL BEC(24,9)

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Description

BEC contains the 24 3x3 rotation matrices which define the symmetry operations of a cubic lattice.

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References

H.K.D.H. Bhadeshia, Worked Examples in the Geometry of Crystals, Institute of Materials, London, 1987.
H.K.D.H. Bhadeshia, Chapter on crystallography in Microstructural Characterisation of High Temperature Materials, ed. E. Metcalfe, Institute of Metals, London, 1988.

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Parameters

Input parameters

See output parameters.

Output parameters

BEC - real array of dimension 24x9.: BEC contains the 24 rotation matrices held in vector form.

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Error Indicators

None.

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Accuracy

No information supplied.

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Further Comments

None.

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Example

1. Program text

       REAL BEC(24,9)
       INTEGER I,J
       CALL MAP_CRYSTAL_ORIENT(BEC)
       DO 10 I=1,24
       WRITE (6,*) (BEC(I,J), J=1,9)
10     CONTINUE
       STOP
       END

2. Program data

No input data required.

3. Program results

 0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0
 0.0  0.0  1.0  1.0  0.0  0.0  0.0  1.0  0.0
-1.0  0.0  0.0  0.0  0.0 -1.0  0.0 -1.0  0.0
 0.0 -1.0  0.0 -1.0  0.0  0.0  0.0  0.0 -1.0 
 0.0  0.0 -1.0  0.0 -1.0  0.0 -1.0  0.0  0.0
 1.0  0.0  0.0  0.0  0.0  1.0  0.0 -1.0  0.0
 0.0  0.0  1.0  0.0  1.0  0.0 -1.0  0.0  0.0
 0.0  1.0  0.0  1.0  0.0  0.0  0.0  0.0 -1.0
 0.0  0.0 -1.0 -1.0  0.0  0.0  0.0  1.0  0.0
 0.0 -1.0  0.0  0.0  0.0 -1.0  1.0  0.0  0.0
-1.0  0.0  0.0  0.0 -1.0  0.0  0.0  0.0  1.0
 1.0  0.0  0.0  0.0  0.0 -1.0  0.0  1.0  0.0
 0.0  0.0  1.0  0.0 -1.0  0.0  1.0  0.0  0.0
 0.0  1.0  0.0 -1.0  0.0  0.0  0.0  0.0  1.0
 0.0 -1.0  0.0  0.0  0.0  1.0 -1.0  0.0  0.0
 0.0  0.0 -1.0  1.0  0.0  0.0  0.0 -1.0  0.0
-1.0  0.0  0.0  0.0  1.0  0.0  0.0  0.0 -1.0
 0.0  0.0 -1.0  0.0  1.0  0.0  1.0  0.0  0.0
-1.0  0.0  0.0  0.0  0.0  1.0  0.0  1.0  0.0
 0.0 -1.0  0.0  1.0  0.0  0.0  0.0  0.0  1.0
 0.0  1.0  0.0  0.0  0.0 -1.0 -1.0  0.0  0.0
 1.0  0.0  0.0  0.0 -1.0  0.0  0.0  0.0 -1.0

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