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*DECK EDIUNF
SUBROUTINE EDIUNF(IPGEO1,IPGEO2,HSYM)
*-----------------------------------------------------------------------
*
*Purpose:
* Unfold a geometry.
*
*Copyright:
* Copyright (C) 2015 Ecole Polytechnique de Montreal
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version
*
*Author(s): A. Hebert
*
*Parameters: input
* IPGEO1 pointer to the original geometry (L_GEOM signature).
* IPGEO2 pointer to the unfolded geometry (L_GEOM signature).
* HSYM type of symmetry:
* 'DIAG' for diagonal symmetry;
* 'SYMX' for symmetry relative to X axis;
* 'SYMY' for symmetry relative to Y axis.
*
*-----------------------------------------------------------------------
*
USE GANLIB
*----
* SUBROUTINE ARGUMENTS
*----
TYPE(C_PTR) IPGEO1,IPGEO2
CHARACTER HSYM*4
*----
* LOCAL VARIABLES
*----
PARAMETER (NSTATE=40)
INTEGER ISTATE(NSTATE),NCODE(6),ICODE(6),ITDI(8),ITSX(8),ITSY(8)
REAL ZCODE(6)
CHARACTER*12 HSIGN
LOGICAL LDIAG,LSYMX,LSYMY,LMESHX,LMESHY,LHMIX
SAVE ITDI,ITSX,ITSY
DATA ITDI/6,5,8,7,2,1,4,3/
DATA ITSX/7,6,5,8,3,2,1,4/
DATA ITSY/5,8,7,6,1,4,3,2/
*----
* ALLOCATABLE ARRAYS
*----
INTEGER, ALLOCATABLE, DIMENSION(:) :: MIX,MERGE,ITURN,IHMIX
INTEGER, ALLOCATABLE, DIMENSION(:,:) :: MIX2,MERGE2,ITURN2,IHMIX2
REAL, ALLOCATABLE, DIMENSION(:) :: MESHX,MESHY,MESHX2,MESHY2
*
CALL LCMGTC(IPGEO1,'SIGNATURE',12,HSIGN)
IF(HSIGN .NE. 'L_GEOM') THEN
CALL XABORT('EDIUNF: SIGNATURE OF INPUT LCM OBJECT IS '//HSIGN//
> '. L_GEOM EXPECTED.')
ENDIF
CALL LCMGET(IPGEO1,'STATE-VECTOR',ISTATE)
IF(ISTATE(1).NE.5) CALL XABORT('EDIUNF: CARTESIAN GEOMETRY EXPEC'
> //'TED.')
IF(ISTATE(8).NE.1) CALL XABORT('EDIUNF: EMBEDDED CELLS EXPECTED.')
NX=ISTATE(3)
NY=ISTATE(4)
NK=ISTATE(6)
CALL LCMGET(IPGEO1,'NCODE',NCODE)
CALL LCMGET(IPGEO1,'ICODE',ICODE)
CALL LCMGET(IPGEO1,'ZCODE',ZCODE)
LDIAG=(NCODE(1).EQ.3).AND.(NCODE(4).EQ.3)
LSYMX=(NCODE(3).EQ.5).AND.(NCODE(1).NE.3)
LSYMY=(NCODE(1).EQ.5).AND.(NCODE(4).NE.3)
*----
* Recover original geometry
*----
ALLOCATE(MIX(NK),MERGE(NK),ITURN(NK),IHMIX(NK))
ALLOCATE(MESHX(NX+1),MESHY(NY+1))
CALL LCMLEN(IPGEO1,'MESHX',ILONG,ITYLCM)
LMESHX=ILONG.NE.0
IF(LMESHX) CALL LCMGET(IPGEO1,'MESHX',MESHX)
CALL LCMLEN(IPGEO1,'MESHY',ILONG,ITYLCM)
LMESHY=ILONG.NE.0
IF(LMESHY) CALL LCMGET(IPGEO1,'MESHY',MESHY)
CALL LCMGET(IPGEO1,'MIX',MIX)
CALL LCMLEN(IPGEO1,'MERGE',ILONG,ITYLCM)
IF(ILONG.NE.0) THEN
CALL LCMGET(IPGEO1,'MERGE',MERGE)
ELSE
DO I=1,NK
MERGE(I)=I
ENDDO
ENDIF
CALL LCMLEN(IPGEO1,'TURN',ILONG,ITYLCM)
IF(ILONG.NE.0) THEN
CALL LCMGET(IPGEO1,'TURN',ITURN)
ELSE
ITURN(:NK)=1
ENDIF
CALL LCMLEN(IPGEO1,'HMIX',ILONG,ITYLCM)
LHMIX=ILONG.NE.0
IF(LHMIX) CALL LCMGET(IPGEO1,'HMIX',IHMIX)
*----
* Build unfolded geometry geometry
*----
NX2=NX
NY2=NY
IF(HSYM.EQ.'DIAG') THEN
IF(.NOT.LDIAG) CALL XABORT('EDIUNF: DIAG UNFOLDING FAILURE.')
ELSE IF(HSYM.EQ.'SYMX') THEN
IF(.NOT.LSYMX) CALL XABORT('EDIUNF: SYMX UNFOLDING FAILURE.')
NY2=2*NY-1
ELSE IF(HSYM.EQ.'SYMY') THEN
IF(.NOT.LSYMY) CALL XABORT('EDIUNF: SYMY UNFOLDING FAILURE.')
NX2=2*NX-1
ELSE
CALL XABORT('EDIUNF: INVALID TYPE OF SYMMETRY AXIS.')
ENDIF
ALLOCATE(MIX2(NX2,NY2),MERGE2(NX2,NY2),ITURN2(NX2,NY2),
> IHMIX2(NX2,NY2))
ALLOCATE(MESHX2(NX2+1),MESHY2(NY2+1))
IF(HSYM.EQ.'DIAG') THEN
NCODE(1)=NCODE(3)
NCODE(4)=NCODE(2)
ICODE(1)=ICODE(3)
ICODE(4)=ICODE(2)
ZCODE(1)=ZCODE(3)
ZCODE(4)=ZCODE(2)
IOF=0
DO IY=1,NY
DO IX=IY,NX
IOF=IOF+1
IF(IOF.GT.NK) CALL XABORT('EDIUNF: NK OVERFLOW(1).')
MIX2(IX,IY)=MIX(IOF)
MIX2(IY,IX)=MIX(IOF)
MERGE2(IX,IY)=MERGE(IOF)
MERGE2(IY,IX)=MERGE(IOF)
ITURN2(IX,IY)=ITURN(IOF)
ITURN2(IY,IX)=ITDI(ITURN(IOF))
IF(LHMIX) THEN
IHMIX2(IX,IY)=IHMIX(IOF)
IHMIX2(IY,IX)=IHMIX(IOF)
ENDIF
ENDDO
ENDDO
IF(LMESHX) THEN
DO IX=1,NX+1
MESHX2(IX)=MESHX(IX)
ENDDO
ENDIF
IF(LMESHY) THEN
DO IY=1,NY+1
MESHY2(IY)=MESHY(IY)
ENDDO
ENDIF
ELSE IF(HSYM.EQ.'SYMX') THEN
NCODE(3)=NCODE(4)
ICODE(3)=ICODE(4)
ZCODE(3)=ZCODE(4)
DO IY=1,NY
DO IX=1,NX
IOF=(IY-1)*NX+IX
IF(IOF.GT.NK) CALL XABORT('EDIUNF: NK OVERFLOW(2).')
MIX2(IX,NY+IY-1)=MIX(IOF)
MIX2(IX,NY-IY+1)=MIX(IOF)
MERGE2(IX,NY+IY-1)=MERGE(IOF)
MERGE2(IX,NY-IY+1)=MERGE(IOF)
ITURN2(IX,NY+IY-1)=ITURN(IOF)
ITURN2(IX,NY-IY+1)=ITSX(ITURN(IOF))
IF(LHMIX) THEN
IHMIX2(IX,NY+IY-1)=IHMIX(IOF)
IHMIX2(IX,NY-IY+1)=IHMIX(IOF)
ENDIF
ENDDO
ENDDO
IF(LMESHX) THEN
DO IX=1,NX+1
MESHX2(IX)=MESHX(IX)
ENDDO
ENDIF
IF(LMESHY) THEN
DO IY=1,NY+1
MESHY2(NY+IY-1)=MESHY(IY)
ENDDO
DO IY=3,NY+1
MESHY2(NY-IY+2)=MESHY2(NY-IY+3)-(MESHY(IY)-MESHY(IY-1))
ENDDO
ENDIF
ELSE IF(HSYM.EQ.'SYMY') THEN
NCODE(1)=NCODE(2)
ICODE(1)=ICODE(2)
ZCODE(1)=ZCODE(2)
DO IY=1,NY
DO IX=1,NX
IOF=(IY-1)*NX+IX
IF(IOF.GT.NK) CALL XABORT('EDIUNF: NK OVERFLOW(3).')
MIX2(NX+IX-1,IY)=MIX(IOF)
MIX2(NX-IX+1,IY)=MIX(IOF)
MERGE2(NX+IX-1,IY)=MERGE(IOF)
MERGE2(NX-IX+1,IY)=MERGE(IOF)
ITURN2(NX+IX-1,IY)=ITURN(IOF)
ITURN2(NX-IX+1,IY)=ITSX(ITURN(IOF))
IF(LHMIX) THEN
IHMIX2(NX+IX-1,IY)=IHMIX(IOF)
IHMIX2(NX-IX+1,IY)=IHMIX(IOF)
ENDIF
ENDDO
ENDDO
IF(LMESHX) THEN
DO IX=1,NX+1
MESHX2(NX+IX-1)=MESHX(IX)
ENDDO
DO IX=3,NX+1
MESHX2(NX-IX+2)=MESHX2(NX-IX+3)-(MESHX(IX)-MESHX(IX-1))
ENDDO
ENDIF
IF(LMESHY) THEN
DO IY=1,NY+1
MESHY2(IY)=MESHY(IY)
ENDDO
ENDIF
ENDIF
CALL LCMEQU(IPGEO1,IPGEO2)
CALL LCMPUT(IPGEO2,'NCODE',6,1,NCODE)
CALL LCMPUT(IPGEO2,'ICODE',6,1,ICODE)
CALL LCMPUT(IPGEO2,'ZCODE',6,2,ZCODE)
IF(LMESHX) CALL LCMPUT(IPGEO2,'MESHX',NX2+1,2,MESHX)
IF(LMESHY) CALL LCMPUT(IPGEO2,'MESHY',NY2+1,2,MESHY)
CALL LCMPUT(IPGEO2,'MIX',NX2*NY2,1,MIX2)
CALL LCMPUT(IPGEO2,'MERGE',NX2*NY2,1,MERGE2)
CALL LCMPUT(IPGEO2,'TURN',NX2*NY2,1,ITURN2)
IF(LHMIX) CALL LCMPUT(IPGEO2,'HMIX',NX2*NY2,1,IHMIX2)
ISTATE(3)=NX2
ISTATE(4)=NY2
ISTATE(6)=NX2*NY2
CALL LCMPUT(IPGEO2,'STATE-VECTOR',NSTATE,1,ISTATE)
*----
* Release memory
*----
DEALLOCATE(MESHY2,MESHX2,MESHY,MESHX)
DEALLOCATE(IHMIX2,ITURN2,MERGE2,MIX2,IHMIX,ITURN,MERGE,MIX)
RETURN
END
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