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|
*DECK NXTLCY
FUNCTION NXTLCY(IPRINT,ITST ,NDIM ,MXMESH,LINMAX,
> MESH ,ORITRK,DIRTRK,DCMESH,IDIRC ,
> NBCOR ,NBSINT,ISINT ,TRKLSI)
*
*----------
*
*Purpose:
* To track an annular 2-D or 3-D geometry
* using the NXT tracking procedure.
*
*Copyright:
* Copyright (C) 2005 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): G. Marleau.
*
*Parameters: input
* IPRINT print level.
* ITST type of tracking, where:
* =-1 only the exact geometry
* is considered taking into account the
* submesh in each direction;
* = 0 only the global geometry
* is considered without taking into account the
* submesh in each direction;
* = 1 both the global
* geometry (as a first step) and the exact geometry
* are considered taking into account the
* submesh in each direction.
* NDIM dimension of problem.
* MXMESH maximum number of spatial subdivision in
* $R$ and $X$, $Y$ or $Z$.
* LINMAX maximum number of segments in a track.
* MESH effective number of spatial subdivision in $X$
* $Y$, $Z$ and $R$.
* ORITRK a point on the track (origin).
* DIRTRK the track direction (director cosines).
* DCMESH spatial description of the cylinder.
* IDIRC the direction of the cylinder axis.
*
*Parameters: output
* NXTLCY number of surfaces intersected.
* NBCOR number of corner found for each external faces.
* NBSINT number of surface crossed by track.
* ISINT the surfaces crossed by the track.
* TRKLSI the surface intersection distance.
*
*Reference:
* G. Marleau,
* New Geometries Processing in DRAGON: The NXT: Module,
* Report IGE-260, Polytechnique Montreal,
* Montreal, 2005.
*
*----------
*
IMPLICIT NONE
*----
* Subroutine arguments
*----
INTEGER IPRINT,ITST,NDIM,MXMESH,LINMAX
INTEGER MESH(5)
DOUBLE PRECISION ORITRK(NDIM),
> DIRTRK(NDIM),
> DCMESH(-1:MXMESH,5)
INTEGER IDIRC
INTEGER NBCOR(2),NBSINT
INTEGER ISINT(0:5,LINMAX)
DOUBLE PRECISION TRKLSI(LINMAX)
INTEGER NXTLCY
*----
* Local parameters
*----
INTEGER IOUT
CHARACTER NAMSBR*6
PARAMETER (IOUT=6,NAMSBR='NXTLCY')
INTEGER MXDIM
PARAMETER (MXDIM=3)
DOUBLE PRECISION DZERO,DONE,DTWO
PARAMETER (DZERO=0.0D0,DONE=1.0D0,DTWO=2.0D0)
DOUBLE PRECISION DCUTOL
PARAMETER (DCUTOL=1.0D-11)
*----
* Local variables
*----
INTEGER IDIR,INDIR,INEXT,IFRST,ILAST,IFACE,
> IDGR,IDG1,IDG2,IDGP,NR,NP
INTEGER JFACE,JSUR,KNEXT,KSFRST,KSLAST,
> KVFRST,KVLAST,KFACE,KSUR,KSUB
INTEGER IC1,IDIRS,IDIRF,IDIRB,IRFIN,IDIRFS
DOUBLE PRECISION DP1,DP2,TRKK
DOUBLE PRECISION TRKDIS,TRKOLD,TRKTMP
DOUBLE PRECISION TORI(MXDIM),ROTANG(MXDIM)
DOUBLE PRECISION XYCEN(2),RADIUS,CYLLIM(2),PROJ,PROJN,
> YLOC,XORI,XLOC(2),CYLINT,TCINTD,XXINTD
DOUBLE PRECISION DCUTOF
*----
* Data
*----
CHARACTER CDIR(4)*1
SAVE CDIR
DATA CDIR /'X','Y','Z','R'/
*----
* Verify ITST option and reset to default value if invalid
*----
IF(ITST .LT. -1 .OR. ITST .GT. 1) THEN
*----
* Reset ITST=1 (complete analysis) if the value of ITST is invalid
*----
ITST=1
ENDIF
*----
* Initialise output vectors
*----
KSFRST=1
KSLAST=1
KVFRST=1
KVLAST=1
KNEXT=1
KSUB=1
TRKOLD=DZERO
NBCOR(1)=0
NBCOR(2)=0
NBSINT=0
ISINT(0:5,:LINMAX)=0
TRKLSI(:LINMAX)=DZERO
*----
* IDG1 is first direction of plane perpendicular
* to main direction ($Y, $Z$ or $X$).
* IDG2 is second direction of plane perpendicular
* to main direction ($Z$, $X$ or $Y$).
* IDGP is main cylinder direction ($X$, $Y$ or $Z$)
* for 2D case IDGP=3
*----
IDGR=4
IDGP=IDIRC
IDG1=MOD(IDGP,3)+1
IDG2=MOD(IDGP+1,3)+1
NR=MESH(4)
NP=MESH(IDGP)
*----
* Print header if required
*----
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,6000) NAMSBR
WRITE(IOUT,6011) 'radial'//CDIR(IDG1)//CDIR(IDG2)//
> '={ '
WRITE(IOUT,6012) (DCMESH(IC1,IDGR),IC1=1,NR)
WRITE(IOUT,6013)
WRITE(IOUT,6011) 'center'//CDIR(IDG1)//CDIR(IDG2)//
> '={ '
WRITE(IOUT,6012) DCMESH(-1,IDG1),DCMESH(-1,IDG2)
WRITE(IOUT,6013)
IF(NDIM .EQ. 3) THEN
WRITE(IOUT,6011) 'axial'//CDIR(IDGP)//'={ '
WRITE(IOUT,6012) (DCMESH(IC1,IDGP),IC1=0,NP)
WRITE(IOUT,6013)
ENDIF
WRITE(IOUT,6011) 'trackorigin={ '
WRITE(IOUT,6012) ORITRK
WRITE(IOUT,6013)
WRITE(IOUT,6011) 'trackdirection={ '
WRITE(IOUT,6012) DIRTRK
WRITE(IOUT,6013)
ENDIF
*----
* Select planes order in direction IDIR
*----
IFRST=NR+1
INEXT=-1
ILAST=2
*----
* Select planes order in direction KDIR (if required)
*----
DCUTOF=DCUTOL*DCUTOL
IF(NDIM .EQ. 3) THEN
DCUTOF=DCUTOF*DCUTOL
IF(DIRTRK(IDGP) .LT. 0) THEN
KNEXT=-1
KSFRST=NP+1
KSLAST=1
KVFRST=NP+1
KVLAST=2
KSUB=-1
ELSE
KNEXT=1
KSFRST=1
KSLAST=NP+1
KVFRST=1
KVLAST=NP
KSUB=0
ENDIF
ENDIF
*----
* Projection on 2-D plane
* and translation to origin of circle
*----
XYCEN(1)=DCMESH(-1,IDG1)
XYCEN(2)=DCMESH(-1,IDG2)
TORI(1)=ORITRK(IDG1)
TORI(2)=ORITRK(IDG2)
IF(NDIM .EQ. 3) THEN
TORI(3)=ORITRK(IDGP)
ROTANG(3)=DIRTRK(IDGP)
ELSE
ROTANG(3)=DZERO
TORI(3)=DZERO
ENDIF
PROJ=DONE/SQRT(DONE-ROTANG(3)**2)
ROTANG(1)=DIRTRK(IDG1)*PROJ
ROTANG(2)=DIRTRK(IDG2)*PROJ
PROJN=DONE/SQRT(ROTANG(1)*ROTANG(1)+ROTANG(2)*ROTANG(2))
ROTANG(1)=ROTANG(1)*PROJN
ROTANG(2)=ROTANG(2)*PROJN
*----
* Translate (x,y) coordinates to circle center and
* rotate y coordinate in such a way that tracking
* line parallel to the x-axis
*----
XORI= (TORI(1)-XYCEN(1))*ROTANG(1)
> +(TORI(2)-XYCEN(2))*ROTANG(2)
YLOC=-(TORI(1)-XYCEN(1))*ROTANG(2)
> +(TORI(2)-XYCEN(2))*ROTANG(1)
* IF(IPRINT .GT. 1000) THEN
* write(6,*) 'XYCEN =',XYCEN
* write(6,*) 'TORI =',TORI
* write(6,*) 'ROTANG=',ROTANG
* write(6,*) 'RotOri=',XORI,YLOC
* ENDIF
*----
* For option ITST=0, 1, consider global geometry
* and test if line crosses this geometry.
*----
IF(ITST .EQ. 0 .OR. ITST .EQ. 1) THEN
NBSINT=0
RADIUS=DCMESH(NR,IDGR)
* IF(IPRINT .GT. 1000)
* > write(6,*) 'YLOC, RADIUS=',YLOC,RADIUS
IF(NDIM .EQ. 3) THEN
CYLLIM(1)=DCMESH(0,IDGP)
CYLLIM(2)=DCMESH(NP,IDGP)
* IF(IPRINT .GT. 1000)
* > write(6,*)'CYLLIM ',CYLLIM
ENDIF
*----
* Test if coordinate is inside circle.
*----
IF(ABS(YLOC) .LT. RADIUS) THEN
*----
* Line crosses circle (infinite cylinder)
*----
XLOC(2)=SQRT(RADIUS**2-YLOC**2)
XLOC(1)=-XLOC(2)
IF(NDIM .EQ. 3) THEN
*----
* Find intersection points for finite cylinders in 3D
*----
* IF(IPRINT .GT. 1000)
* > write(6,*) 'XLOC ',XLOC(1),XLOC(2)
DO 100 IFACE=1,2
TCINTD=YLOC*ROTANG(1)+
> XLOC(IFACE)*ROTANG(2)+XYCEN(2)-TORI(2)
XXINTD=XLOC(IFACE)*ROTANG(1)-
> YLOC*ROTANG(2)+XYCEN(1)-TORI(1)
TRKTMP=(TCINTD*PROJ)/ROTANG(2)
TRKDIS=SQRT(XXINTD*XXINTD+TCINTD*TCINTD)*PROJ
* IF(IPRINT .GT. 1000)
* > write(6,*) 'Changedir=',TRKDIS,TCINTD,ROTANG(2)
IF(ROTANG(2)*TCINTD .LT. DZERO) TRKDIS=-TRKDIS
* IF(IPRINT .GT. 1000)
* > write(6,*) 'TRKDIS=',TRKDIS,TRKTMP,ROTANG(2)
CYLINT=TRKDIS*ROTANG(3)+TORI(3)
* IF(IPRINT .GT. 1000)
* > write(6,*) 'CYLINT= ',CYLINT
IF(CYLINT .GE. CYLLIM(1) .AND. CYLINT .LE. CYLLIM(2)) THEN
* IF(IPRINT .GT. 1000)
* > write(6,*) 'iface r ',IFACE
IF(NBSINT .EQ. 0) THEN
NBSINT=1
TRKOLD=TRKDIS
ELSE IF(TRKOLD .NE. TRKDIS) THEN
NBSINT=2
GO TO 105
ENDIF
ENDIF
100 CONTINUE
ELSE
NBSINT=2
* IF(IPRINT .GT. 1000)
* > write(6,*) 'Intersected in 2D'
GO TO 105
ENDIF
ENDIF
*----
* For 3-D geometry look for intersection with bottom
* and top of cylinder
*----
IF(NDIM .EQ. 3) THEN
DO 102 IFACE=1,2
TRKDIS=(CYLLIM(IFACE)-TORI(3))/ROTANG(3)
XLOC(1)=TORI(1)+TRKDIS*ROTANG(1)/PROJ-XYCEN(1)
XLOC(2)=TORI(2)+TRKDIS*ROTANG(2)/PROJ-XYCEN(2)
TCINTD=SQRT(XLOC(1)**2+XLOC(2)**2)
* IF(IPRINT .GT. 1000)
* > write(6,*) 'dir 3 int ', XLOC(1),XLOC(2),TRKDIS
IF(TCINTD .LT. RADIUS) THEN
* IF(IPRINT .GT. 1000)
* > write(6,*) 'iface z ',IFACE
* IF(IPRINT .GT. 1000)
* > write(6,*) TORI(1)+TRKDIS*ROTANG(1)/PROJ,
* > TORI(2)+TRKDIS*ROTANG(2)/PROJ,
* > TORI(3)+TRKDIS*ROTANG(3)
IF(NBSINT .EQ. 0) THEN
NBSINT=1
TRKOLD=TRKDIS
ELSE IF(TRKOLD .NE. TRKDIS) THEN
NBSINT=2
GO TO 105
ENDIF
ENDIF
102 CONTINUE
ENDIF
105 CONTINUE
ELSE
*----
* If ITST=-1, assume that 2 surface are intersected
* and continue
*----
NBSINT=2
ENDIF
* IF(IPRINT .GT. 1000)
* > write(6,*) 'Nb sur=',NBSINT
NXTLCY=NBSINT
*----
* If line does not intersect any surfaces, exit
*----
IF(NXTLCY .EQ. 0) THEN
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,6002) NAMSBR
ENDIF
RETURN
ENDIF
*----
* If line does not intersect 2 surfaces, abort
*----
IF(NBSINT .NE. 2) CALL XABORT(NAMSBR//
>': Invalid line since it did not intersect 0 or 2 surfaces')
*----
* If ITST=0, return number of surfaces intersected by line
*----
IF(ITST .EQ. 0) RETURN
*----
* If ITST=1 or -1
* track geometry with submesh
*----
NBSINT=0
*----
* Loop over radial regions from maximal radius
* from outer to inner
*----
DO 110 IFACE=IFRST,ILAST,INEXT
RADIUS=DCMESH(IFACE-1,IDGR)
* IF(IPRINT .GT. 1000)
* > write(6,*) 'YLOC, RADIUS=',YLOC,RADIUS
IF(ABS(YLOC) .LE. RADIUS) THEN
XLOC(2)=SQRT(RADIUS**2-YLOC**2)
XLOC(1)=-XLOC(2)
* IF(IPRINT .GT. 1000)
* > write(6,*) 'XLOC',XLOC
*----
* Scan over two possible cylinder intersections
*----
INDIR=1
DO 111 JFACE=1,2
TCINTD=YLOC*ROTANG(1)+XLOC(JFACE)*ROTANG(2)+XYCEN(2)-TORI(2)
XXINTD=XLOC(JFACE)*ROTANG(1)-YLOC*ROTANG(2)+XYCEN(1)-TORI(1)
TRKDIS=SQRT(XXINTD*XXINTD+TCINTD*TCINTD)*PROJ
* IF(IPRINT .GT. 1000)
* > TRKTMP=(TCINTD*PROJ)/ROTANG(2)
IF(ROTANG(2)*TCINTD .LT. -DCUTOF) TRKDIS=-TRKDIS
* IF(IPRINT .GT. 1000)
* > write(6,*) 'Distances',XXINTD,TCINTD,ROTANG(2),TRKDIS,TRKTMP
IF(NDIM .EQ. 3) THEN
*----
* Scan over planes in axial cylinder direction
*----
TRKK=DBLE(KNEXT)*(TRKDIS*ROTANG(3)+TORI(3))
DO 112 KFACE=KVFRST,KVLAST,KNEXT
DP1=DBLE(KNEXT)*DCMESH(KFACE-1,IDGP)
DP2=DBLE(KNEXT)*DCMESH(KFACE-1+KNEXT,IDGP)
* IF(IPRINT .GT. 1000)
* > write(6,*) 'DP1,DP2 ',DP1,DP2,TRKK
IF(TRKK .GE. DP1 .AND.
> TRKK .LE. DP2 ) THEN
NBSINT=NBSINT+1
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,6011) 'Intersection at '
WRITE(IOUT,6014) IFACE,JFACE,KFACE
WRITE(IOUT,6015) TRKDIS
ENDIF
IF(NBSINT .EQ. 1) THEN
ISINT(0,NBSINT)=(IDG1+3)*INDIR
ISINT(IDGR,NBSINT)=IFACE-1
ISINT(IDGP,NBSINT)=KFACE+KSUB
TRKLSI(NBSINT)=TRKDIS
ELSE
*----
* Scan previous distances and reorder if necessary
*----
DO 120 JSUR=NBSINT-1,1,-1
IF(TRKDIS .GE. TRKLSI(JSUR)) THEN
*----
* For more than one intersection at a given distance:
* a) if this is an external surface, store the distance
* for corner duplication
* b) if this is an internal surface select adequate next region
* to cross and reset NBSINT=NBSINT-1
*----
IF(TRKDIS .EQ. TRKLSI(JSUR) .AND.
> IFACE .NE. IFRST ) THEN
ISINT(IDGR,JSUR)=IFACE-1
ISINT(IDGP,JSUR)=KFACE+KSUB
NBSINT=NBSINT-1
GO TO 125
ENDIF
DO 121 KSUR=NBSINT,JSUR+2,-1
ISINT(0,KSUR)=ISINT(0,KSUR-1)
ISINT(IDGR,KSUR)=ISINT(IDGR,KSUR-1)
ISINT(IDGP,KSUR)=ISINT(IDGP,KSUR-1)
TRKLSI(KSUR)=TRKLSI(KSUR-1)
121 CONTINUE
ISINT(0,JSUR+1)=(IDG1+3)*INDIR
ISINT(IDGR,JSUR+1)=IFACE-1
ISINT(IDGP,JSUR+1)=KFACE+KSUB
TRKLSI(JSUR+1)=TRKDIS
GO TO 125
ENDIF
120 CONTINUE
DO 122 KSUR=NBSINT,2,-1
ISINT(0,KSUR)=ISINT(0,KSUR-1)
ISINT(IDGR,KSUR)=ISINT(IDGR,KSUR-1)
ISINT(IDGP,KSUR)=ISINT(IDGP,KSUR-1)
TRKLSI(KSUR)=TRKLSI(KSUR-1)
122 CONTINUE
ISINT(0,1)=(IDG1+3)*INDIR
ISINT(IDGR,1)=IFACE-1
ISINT(IDGP,1)=KFACE+KSUB
TRKLSI(1)=TRKDIS
125 CONTINUE
ENDIF
ENDIF
112 CONTINUE
ELSE
*----
* For 2-D, intersection with a circle
*----
NBSINT=NBSINT+1
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,6011) 'Intersection at '
WRITE(IOUT,6014) IFACE,JFACE
WRITE(IOUT,6015) TRKDIS
ENDIF
IF(NBSINT .EQ. 1) THEN
ISINT(0,NBSINT)=(IDG1+3)*INDIR
ISINT(IDGR,NBSINT)=IFACE-1
TRKLSI(NBSINT)=TRKDIS
ELSE
*----
* Scan previous distances and reorder if necessary
*----
DO 130 JSUR=NBSINT-1,1,-1
IF(TRKDIS .GE. TRKLSI(JSUR)) THEN
*----
* For more than one intersection at a given distance:
* a) if this is an external surface, store the distance
* for corner duplication
* b) if this is an internal surface select adequate next region
* to cross and reset NBSINT=NBSINT-1
*----
IF(TRKDIS .EQ. TRKLSI(JSUR) .AND.
> IFACE .NE. IFRST ) THEN
ISINT(IDGR,JSUR)=IFACE-1
NBSINT=NBSINT-1
GO TO 135
ENDIF
DO 131 KSUR=NBSINT,JSUR+2,-1
ISINT(0,KSUR)=ISINT(0,KSUR-1)
ISINT(IDGR,KSUR)=ISINT(IDGR,KSUR-1)
TRKLSI(KSUR)=TRKLSI(KSUR-1)
131 CONTINUE
ISINT(0,JSUR+1)=(IDG1+3)*INDIR
ISINT(IDGR,JSUR+1)=IFACE-1
TRKLSI(JSUR+1)=TRKDIS
GO TO 135
ENDIF
130 CONTINUE
DO 132 KSUR=NBSINT,2,-1
ISINT(0,KSUR)=ISINT(0,KSUR-1)
ISINT(IDGR,KSUR)=ISINT(IDGR,KSUR-1)
TRKLSI(KSUR)=TRKLSI(KSUR-1)
132 CONTINUE
ISINT(0,1)=(IDG1+3)*INDIR
ISINT(IDGR,1)=IFACE-1
TRKLSI(1)=TRKDIS
135 CONTINUE
ENDIF
ENDIF
INDIR=-1
111 CONTINUE
ENDIF
110 CONTINUE
IF(NDIM .EQ. 3) THEN
*----
* Loop over axial regions from Top to bottom or
* vice versa
*----
DO 140 KFACE=KSFRST,KSLAST,KNEXT
TRKDIS=(DCMESH(KFACE-1,IDGP)-TORI(3))/ROTANG(3)
DP1=TORI(1)+TRKDIS*ROTANG(1)/PROJ-XYCEN(1)
DP2=TORI(2)+TRKDIS*ROTANG(2)/PROJ-XYCEN(2)
TCINTD=SQRT(DP1**2+DP2**2)
*----
* Loop over radial regions from inner to outer
*----
DO 141 IFACE=ILAST,IFRST,-INEXT
RADIUS=DCMESH(IFACE-1,IDGR)
* IF(IPRINT .GT. 1000)
* > write(6,*) 'zz= ',DP1,DP2,TCINTD,RADIUS
IF(TCINTD .LE. RADIUS) THEN
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,6011) 'Intersection at '
WRITE(IOUT,6014) KFACE,IFACE
WRITE(IOUT,6015) TRKDIS
ENDIF
NBSINT=NBSINT+1
IF(NBSINT .EQ. 1) THEN
ISINT(0,NBSINT)=IDGP
ISINT(IDGR,NBSINT)=IFACE-1
ISINT(IDGP,NBSINT)=KFACE
TRKLSI(NBSINT)=TRKDIS
ELSE
*----
* Scan previous distances and reorder if necessary
*----
DO 150 JSUR=NBSINT-1,1,-1
IF(TRKDIS .GE. TRKLSI(JSUR)) THEN
*----
* For more than one intersection at a given distance:
* a) if this is an external surface, store the distance
* for corner duplication
* b) if this is an internal surface select adequate next region
* to cross and reset NBSINT=NBSINT-1
*----
IF(TRKDIS .EQ. TRKLSI(JSUR) .AND.
> KFACE .NE. KSFRST .AND.
> KFACE .NE. KSLAST ) THEN
ISINT(IDGR,JSUR)=IFACE-1
ISINT(IDGP,JSUR)=KFACE
NBSINT=NBSINT-1
GO TO 155
ENDIF
DO 151 KSUR=NBSINT,JSUR+2,-1
ISINT(0,KSUR)=ISINT(0,KSUR-1)
ISINT(IDGR,KSUR)=ISINT(IDGR,KSUR-1)
ISINT(IDGP,KSUR)=ISINT(IDGP,KSUR-1)
TRKLSI(KSUR)=TRKLSI(KSUR-1)
151 CONTINUE
ISINT(0,JSUR+1)=IDGP
ISINT(IDGR,JSUR+1)=IFACE-1
ISINT(IDGP,JSUR+1)=KFACE
TRKLSI(JSUR+1)=TRKDIS
GO TO 155
ENDIF
150 CONTINUE
DO 152 KSUR=NBSINT,2,-1
ISINT(0,KSUR)=ISINT(0,KSUR-1)
ISINT(IDGR,KSUR)=ISINT(IDGR,KSUR-1)
ISINT(IDGP,KSUR)=ISINT(IDGP,KSUR-1)
TRKLSI(KSUR)=TRKLSI(KSUR-1)
152 CONTINUE
ISINT(0,1)=IDGP
ISINT(IDGR,1)=IFACE-1
ISINT(IDGP,1)=KFACE
TRKLSI(1)=TRKDIS
155 CONTINUE
ENDIF
GO TO 145
ENDIF
141 CONTINUE
145 CONTINUE
140 CONTINUE
ENDIF
IF(NBSINT .GE. 2) THEN
*----
* Find number of corners for initial surface intersections
*----
TRKDIS=TRKLSI(1)
NBCOR(1)=1
DO 160 JSUR=2,NBSINT
IF(TRKLSI(JSUR) .GT. TRKDIS) GO TO 165
NBCOR(1)=NBCOR(1)+1
160 CONTINUE
165 CONTINUE
*----
* Find number of corners for final surface intersections
*----
TRKDIS=TRKLSI(NBSINT)
NBCOR(2)=1
DO 170 JSUR=NBSINT-1,1,-1
IF(TRKLSI(JSUR) .LT. TRKDIS) GO TO 175
NBCOR(2)=NBCOR(2)+1
170 CONTINUE
175 CONTINUE
ENDIF
*----
* Print intersection points
*----
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,6011) 'Initial planes '
DO 200 JSUR=1,NBCOR(1)
WRITE(IOUT,6010) TRKLSI(JSUR),
> (ISINT(IDIR,JSUR),IDIR=0,5)
200 CONTINUE
IF(NBCOR(1)+1 .LE. NBSINT-NBCOR(2)) THEN
WRITE(IOUT,6011) 'Intermediate planes '
DO 201 JSUR=NBCOR(1)+1,NBSINT-NBCOR(2)
WRITE(IOUT,6010) TRKLSI(JSUR),
> (ISINT(IDIR,JSUR),IDIR=0,5)
201 CONTINUE
ENDIF
WRITE(IOUT,6011) 'Final planes '
DO 202 JSUR=NBSINT-NBCOR(2)+1,NBSINT
WRITE(IOUT,6010) TRKLSI(JSUR),
> (ISINT(IDIR,JSUR),IDIR=0,5)
202 CONTINUE
ENDIF
*----
* Identify final faces
*----
DO JSUR=NBSINT,NBSINT-NBCOR(2)+1,-1
DO IDIRS=0,5
ISINT(IDIRS,JSUR+1)=ISINT(IDIRS,JSUR)
ENDDO
TRKLSI(JSUR+1)=TRKLSI(JSUR)
IDIRS=ABS(ISINT(0,JSUR+1))
IF(IDIRS .GE. 4) THEN
IDIRF=ISINT(4,JSUR+1)
IF(IDIRF .NE. MESH(4)) THEN
WRITE(IOUT,9001) NAMSBR,'final ',
> JSUR,4,IDIRF,MESH(4)
CALL XABORT(NAMSBR//
> ': Invalid '//CDIR(4)//' directed surface')
ENDIF
ISINT(4,JSUR+1)=-2
ELSE
IDIRF=ISINT(IDIRS,JSUR+1)
IF(IDIRF .EQ. 1) THEN
ISINT(IDIRS,JSUR+1)=-1
ELSE IF(IDIRF .EQ. MESH(IDIRS)+1) THEN
ISINT(IDIRS,JSUR+1)=-2
ELSE
WRITE(IOUT,9001) NAMSBR,'final ',
> JSUR,IDIRS,IDIRF,MESH(IDIRS)
CALL XABORT(NAMSBR//': Invalid '//CDIR(IDIRS)//
> ' directed surface')
ENDIF
ENDIF
ENDDO
*----
* Identify regions
*----
DO JSUR=NBSINT-NBCOR(2)+1,NBCOR(1)+1,-1
IDIRFS=ISINT(0,JSUR)
IF(IDIRFS .GE. 4) THEN
IDIRFS=1
ELSE
IDIRFS=0
ENDIF
IDIRB=ABS(ISINT(0,JSUR-1))
IF(IDIRB .GE. 4) IDIRB=4
IDIRF=ABS(ISINT(0,JSUR))
IF(IDIRF .GE. 4) IDIRF=4
IF(IDIRB .EQ. IDIRF) THEN
IF(IDIRB .EQ. 4) THEN
IRFIN=MAX(ISINT(4,JSUR-1),ISINT(4,JSUR))
ELSE
IRFIN=MIN(ISINT(IDIRF,JSUR-1),ISINT(IDIRF,JSUR))
ENDIF
ELSE
IF(IDIRF .EQ. 4) THEN
IF(IDIRFS .EQ. 1) THEN
IRFIN=ISINT(4,JSUR-1)
ELSE
IRFIN=ISINT(4,JSUR)
ENDIF
ELSE
IRFIN=ISINT(IDIRF,JSUR-1)
ENDIF
ENDIF
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,*) 'JSUR =',JSUR,ISINT(0,JSUR-1),ISINT(0,JSUR),
> IDIRB,IDIRF,IRFIN
ENDIF
TRKLSI(JSUR)=TRKLSI(JSUR)-TRKLSI(JSUR-1)
DO IDIRS=1,5
IF(IDIRS .EQ. IDIRF) THEN
ISINT(IDIRS,JSUR)=IRFIN
ELSE
ISINT(IDIRS,JSUR)=ISINT(IDIRS,JSUR)
ENDIF
ENDDO
ENDDO
*----
* Identify initial face
*----
DO JSUR=1,NBCOR(1)
IDIRS=ABS(ISINT(0,JSUR))
IF(IDIRS .GE. 4) THEN
IDIRB=ISINT(4,JSUR)
IF(IDIRB .NE. MESH(4)) THEN
WRITE(IOUT,9001) NAMSBR,'initial ',
> JSUR,4,IDIRB,MESH(4)
CALL XABORT(NAMSBR//
> ': Invalid '//CDIR(4)//' directed surface')
ENDIF
ISINT(4,JSUR)=-2
ELSE
IDIRB=ISINT(IDIRS,JSUR)
IF(IDIRB .EQ. 1) THEN
ISINT(IDIRS,JSUR)=-1
ELSE IF(IDIRB .EQ. MESH(IDIRS)+1) THEN
ISINT(IDIRS,JSUR)=-2
ELSE
WRITE(IOUT,9001) NAMSBR,'initial ',
> JSUR,IDIRS,IDIRB,MESH(IDIRS)
CALL XABORT(NAMSBR//': Invalid '//CDIR(IDIRS)//
> ' directed surface')
ENDIF
ENDIF
ENDDO
*----
* Print final track information
*----
IF(IPRINT .GT. 1000) THEN
WRITE(IOUT,6011) 'Initial face '
DO JSUR=1,NBCOR(1)
WRITE(IOUT,6010) TRKLSI(JSUR),
> (ISINT(IDIR,JSUR),IDIR=0,5)
ENDDO
WRITE(IOUT,6011) 'Regions '
DO JSUR=NBCOR(1)+1,NBSINT-NBCOR(2)+1
WRITE(IOUT,6010) TRKLSI(JSUR),
> (ISINT(IDIR,JSUR),IDIR=0,5)
ENDDO
WRITE(IOUT,6011) 'Final face '
DO JSUR=NBSINT-NBCOR(2)+2,NBSINT+1
WRITE(IOUT,6010) TRKLSI(JSUR),
> (ISINT(IDIR,JSUR),IDIR=0,5)
ENDDO
WRITE(IOUT,6001) NAMSBR
ENDIF
RETURN
*----
* Output formats
*----
6000 FORMAT('(* Output from --',A6,'-- follows ')
6001 FORMAT(' Output from --',A6,'-- completed *)')
6002 FORMAT(' No region crossed'/
> ' Output from --',A6,'-- completed *)')
6010 FORMAT(1X,F25.16,6I10)
6011 FORMAT(A20)
6012 FORMAT(6(1X,F25.16,:,','))
6013 FORMAT('};')
6014 FORMAT(6I10)
6015 FORMAT(6(1X,F25.16))
*----
* Warning formats
*----
9001 FORMAT(1X,'Error in --',A6,' --'/
> 1X,'invalid ',A8,' surface identification ',4I10)
END
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