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| subroutine | rottoax (orth33, ax3) |
| | Assuming that given orth33 is a 3*3 proper rotation matrix, derive an axial 3-vector, ax3, such that orth33 is implied by ax3 when the latter is interpreted as encoding a rotation (as in subroutine axtorot). More...
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Definition at line 92 of file pmat4.f90.
◆ rottoax()
| subroutine pmat4::rottoax::rottoax |
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real(dp), dimension(3,3), intent(in) |
orth33, |
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real(dp), dimension(3), intent(out) |
ax3 |
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private |
Assuming that given orth33 is a 3*3 proper rotation matrix, derive an axial 3-vector, ax3, such that orth33 is implied by ax3 when the latter is interpreted as encoding a rotation (as in subroutine axtorot).
Note that such ax3 are not unique – adding any multiple of 2*pi times the parallel unit vector leads to the same orth33.
- Parameters
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| [in] | orth33 | 3*3 proper rotation matrix |
| [out] | ax3 | axial 3-vector |
- Author
- R. J. Purser
Definition at line 1518 of file pmat4.f90.
The documentation for this interface was generated from the following file:
- /lfs/h2/emc/global/noscrub/George.Gayno/ufs_utils.git/UFS_UTILS.upstream/sorc/grid_tools.fd/regional_esg_grid.fd/pmat4.f90
1.8.14