euler_vrot.F

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C   This function uses a 3d rotation matrix to turn a point x around a
C   center X0.
!||====================================================================
!||    euler_vrot    ../starter/source/model/submodel/euler_vrot.F
!||--- called by ------------------------------------------------------
!||    hm_read_skw   ../starter/source/tools/skew/hm_read_skw.f
!||    lecsubmod     ../starter/source/model/submodel/lecsubmod.F
!||    lectrans      ../starter/source/model/transformation/lectrans.F
!||    subrotpoint   ../starter/source/model/submodel/subrot.F
!||    subrotvect    ../starter/source/model/submodel/subrot.f
!||====================================================================
      SUBROUTINE euler_vrot (X0,X,ROT)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
C     REAL
      my_real
     .   x0(3),x(3), rot(9)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
C     REAL
      my_real
     .   rx, ry, rz
C=======================================================================
      rx = x(1) - x0(1)
      ry = x(2) - x0(2)
      rz = x(3) - x0(3)
C                                              
      x(1) = x0(1) + rot(1)*rx + rot(4)*ry + rot(7)*rz                        
      x(2) = x0(2) + rot(2)*rx + rot(5)*ry + rot(8)*rz                         
      x(3) = x0(3) + rot(3)*rx + rot(6)*ry + rot(9)*rz                         
C---
      RETURN
      END