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/*@@
@file SetSym.F
@date March 2000
@author Miguel Alcubierre
@desc
Sets the symmetries for the AHF grid functions.
@enddesc
@@*/
#include "cctk.h"
#include "cctk_Arguments.h"
#include "cctk_Parameters.h"
/*@@
@routine AHFinder_SetSym
@date March 2000
@author Miguel Alcubierre
@desc
Sets the symmetries for the AHF grid functions.
@enddesc
@calls
@calledby
@history
@endhistory
@@*/
subroutine AHFinder_SetSym(CCTK_ARGUMENTS)
implicit none
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_PARAMETERS
integer sym(3)
CCTK_INT CCTK_Equals
integer, PARAMETER :: one = 1
INTEGER :: ierr
c +,+,+
sym(1)=+1
sym(2)=+1
sym(3)=+1
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahfgrid')
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahf_exp')
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahfgradn')
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahfgauss')
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahmask')
c -,+,+
sym(1)=-1
sym(2)=+1
sym(3)=+1
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahfgradx')
c +,-,+
sym(1)=+1
sym(2)=-1
sym(3)=+1
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahfgrady')
c +,+,-
sym(1)=+1
sym(2)=+1
sym(3)=-1
call SetCartSymVN(ierr,cctkGH,sym,'ahfinder::ahfgradz')
c End.
end subroutine AHFinder_SetSym
/*@@
@file SetSym.F
@date Jan 2003
@author Denis Pollney
@desc
Sets the reflection symmetry flags.
@enddesc
@@*/
subroutine AHFinder_SetReflections(CCTK_ARGUMENTS)
use AHFinder_dat
implicit none
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_PARAMETERS
DECLARE_CCTK_FUNCTIONS
CCTK_REAL, parameter :: zero = 0.0D0
CCTK_REAL, parameter :: half = 0.5D0
CCTK_REAL, parameter :: one = 1.0D0
! Find out reflection symmetries depending on
! the values of the parameters.
if ((CCTK_Equals(ahf_octant,"yes").eq.1).or.
. (CCTK_Equals(ahf_octant,"high").eq.1)) then
refx = .true.
refy = .true.
refz = .true.
else
if (ahf_refx.ne.0) then
refx = .true.
else
refx = .false.
end if
if (ahf_refy.ne.0) then
refy = .true.
else
refy = .false.
end if
if (ahf_refz.ne.0) then
refz = .true.
else
refz = .false.
end if
end if
if (ahf_phi.eq.0) then
refx = .true.
refy = .true.
end if
! Force grid symmetries. If the grid has some
! symmetry (octant, quadrant, bitant), and the
! horizon is centered on one of the symmetry
! planes, then the grid symmetries are forced
! on it regardless of the values of the symmetry
! parameters.
if (CCTK_Equals(domain,"octant").eq.1) then
if (xc.eq.zero) refx = .true.
if (yc.eq.zero) refy = .true.
if (zc.eq.zero) refz = .true.
else if (CCTK_Equals(domain,"quadrant").eq.1) then
if (xc.eq.zero) refx = .true.
if (yc.eq.zero) refy = .true.
else if (CCTK_Equals(domain,"bitant").eq.1) then
if (CCTK_Equals(bitant_plane,"xy").eq.1) then
if (zc.eq.zero) refz = .true.
else if (CCTK_Equals(bitant_plane,"xz").eq.1) then
if (yc.eq.zero) refy = .true.
else
if (xc.eq.zero) refx = .true.
end if
end if
! Check if we are using cartoon. If we are, then the
! corresponding symmetries are forced on the horizon.
if (ahf_cartoon.ne.0) then
cartoon = .true.
else
cartoon = .false.
end if
if (cartoon) then
nonaxi = .false.
refx = .true.
refy = .true.
end if
! If desired, write values of symmetry flags to screen.
if (veryver) then
write(*,*)
write(*,*) 'Symmetries used for horizon:'
write(*,*) 'refx = ',refx
write(*,*) 'refy = ',refy
write(*,*) 'refz = ',refz
write(*,*)
end if
end subroutine AHFinder_SetReflections
|
