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*DECK NXTFID
SUBROUTINE NXTFID(IX,IY,IZ,NSURC,NREGC,MESHCZ,IMX,IMY,IMR,INDEX,
1 IDSUR,IDREG,IDZ,ITYP)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Locate all the regions/surfaces within a cell/pin corresponding
* to a certain x, y and r position along the projection axis.
*
*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): R. Le Tellier
*
*Parameters: input
* IX first direction perpendicular to the projection axis.
* IY second direction perpendicular to the projection axis.
* IZ projection axis.
* NSURC number of surfaces for the cells/pins.
* NREGC number of regions for the cells/pins.
* MESHCZ number of meshes along the projection axis.
* IMX x index to locate.
* IMY y index to locate.
* IMR r index to locate.
* INDEX cell/pin index vector.
* IDSUR surface index array.
* IDREG region index array.
*
*Parameters: output
* IDZ regions/surfaces encountered along the projection axis.
* ITYP flag for "what was encountered?":
* = 0 non existing IMX,IMY,IMR combination;
* = 1 non-vanishing top/bottom surfaces and regions;
* = 2 vanishing region;
* =-1 non-vanishing lateral surface;
* =-2 vanishing lateral surface.
*
*-----------------------------------------------------------------------
*
IMPLICIT NONE
*----
* SUBROUTINE ARGUMENTS
*----
INTEGER IX,IY,IZ,NSURC,NREGC,MESHCZ,IMX,IMY,IMR,
1 INDEX(5,-NSURC:NREGC),IDSUR(NSURC),IDREG(NREGC),IDZ(0:MESHCZ+1),
2 ITYP
*----
* LOCAL VARIABLES
*----
INTEGER II,IND
*
ITYP=0
DO II=-NSURC,-1
* surfaces
IF ((INDEX(IX,II).EQ.IMX).AND.
1 (INDEX(IY,II).EQ.IMY).AND.
2 (INDEX( 4,II).EQ.IMR)) THEN
IND=INDEX(IZ,II)
IF (IND.EQ.-1) THEN
* a top surface
IDZ(0)=-ABS(IDSUR(-II))
IF (IDZ(0).NE.0) ITYP=1
ELSEIF(IND.EQ.-2) THEN
* a bottom surface
IDZ(MESHCZ+1)=-ABS(IDSUR(-II))
IF (IDZ(MESHCZ+1).NE.0) ITYP=1
ELSE
* a lateral surface
IDZ(IND)=-ABS(IDSUR(-II))
ITYP=-2
IF (IDZ(IND).NE.0) ITYP=-1
ENDIF
ENDIF
ENDDO
DO II=1,NREGC
* regions
IF ((INDEX(IX,II).EQ.IMX).AND.
1 (INDEX(IY,II).EQ.IMY).AND.
2 (INDEX( 4,II).EQ.IMR)) THEN
IND=INDEX(IZ,II)
IDZ(IND)=ABS(IDREG(II))
ITYP=2
IF (IDZ(IND).NE.0) ITYP=1
ENDIF
ENDDO
*
RETURN
END
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