> I just dowloaded & installed the OSX version
> of NCARG, compiled from the gnu compilers.
>
> When I try to compile an NCARG program,
> (arpspltncar, from
> http://www.caps.ou.edu/ARPS/index_flash.html )
>
> I get the following library errors:
>
> g77 -O -o /Users/eadler/ARPS/arps4.5.2/bin/arpspltncar arpsplt.o
> arpspltlib.o arpsplt_cpu.o arpspltderive.o read_surface_obs.o dummyplt.o
> wirfrm.o /Users/eadler/ARPS/arps4.5.2/lib/libadas.a
> /Users/eadler/ARPS/arps4.5.2/lib/libarps.a
> /Users/mingxue/zxplot3/lib.f77/xncar3.o
> /Users/mingxue/zxplot3/lib.f77/zxnglib3.o
> /Users/mingxue/zxplot3/lib.f77/zxplot3.o -L/usr/local/ncarg/lib
> -L/usr/X11R6/lib -L/sw/lib -lncarg -lncarg_gks -lncarg_c -lXpm -lX11
> -lXext
> /usr/bin/ld: Undefined symbols:
> _chkcyc_
> _drwstr_
>
> "chkcyc" and "drwstr" and NCARG subroutines. Are they
> somehow missing from this distribution? The other
> linked routines (zxplot3 routines) do not call them.
>
> Thanks for any help!
>
> -ed
Hi Ed,
You're right, somehow these two routines got removed from the
"libncarg.a" library. I think they are only called in certain cases,
so some folks might still be able to run without having these routines
intact.
However, I'll provide you with "chkcyc.f" and "drwstr.f" for now,
so that you can link them in until I get them built into the ncarg
library. I'll let you know when a new version is available.
Sorry about the hassle!
--Mary
C
C $Id: chkcyc.f,v 1.4 2000/08/22 15:06:40 haley Exp $
C
C Copyright (C) 2000
C University Corporation for Atmospheric Research
C All Rights Reserved
C
C This file is free software; you can redistribute it and/or modify
C it under the terms of the GNU General Public License as published
C by the Free Software Foundation; either version 2 of the License, or
C (at your option) any later version.
C
C This software is distributed in the hope that it will be useful, but
C WITHOUT ANY WARRANTY; without even the implied warranty of
C MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
C General Public License for more details.
C
C You should have received a copy of the GNU General Public License
C along with this software; if not, write to the Free Software
C Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
C USA.
C
SUBROUTINE CHKCYC (U,V,IMAX,JPTSY,IER)
C
C CHECK FOR CYCLIC CONDITION
C
DIMENSION U(IMAX,JPTSY) ,V(IMAX,JPTSY)
COMMON /STR01/ IS ,IEND ,JS ,JEND
1 , IEND1 ,JEND1 ,I ,J
2 , X ,Y ,DELX ,DELY
3 , ICYC1 ,IMSG1 ,IGFL1
C
SAVE
DO 10 J=JS,JEND
IF (U(IS,J).NE.U(IEND,J)) GO TO 20
IF (V(IS,J).NE.V(IEND,J)) GO TO 20
10 CONTINUE
C
C MUST BE CYCLIC
C
RETURN
20 CONTINUE
C
C MUST NOT BE CYCLIC
C . CHANGE THE PARAMETER AND SET IER = -1
C
ICYC1 = 0
IER = -1
RETURN
C
C-----------------------------------------------------------------------
C REVISION HISTORY
C
C OCTOBER, 1979 FIRST ADDED TO ULIB
C
C OCTOBER, 1980 ADDED BUGS SECTION
C
C JUNE, 1984 REMOVED STATEMENT FUNCTIONS ANDF AND ORF,
C CONVERTED TO FORTRAN77 AND GKS.
C
C MAY, 1988 CHANGED CODE (IN SUBROUTINE DRWSTR) WHICH PROTECTS
C UX ELEMENTS FROM BECOMING ZERO. THE ORIGINAL CODE
C CAUSED UNDERFLOW ON IBM MACHINES. (DJK)
C
C MARCH, 1990 FIXED SAVING AND RESTORING OF SET CALL.
C-----------------------------------------------------------------------
C
END
C
C $Id: drwstr.f,v 1.4 2000/08/22 15:06:40 haley Exp $
C
C Copyright (C) 2000
C University Corporation for Atmospheric Research
C All Rights Reserved
C
C This file is free software; you can redistribute it and/or modify
C it under the terms of the GNU General Public License as published
C by the Free Software Foundation; either version 2 of the License, or
C (at your option) any later version.
C
C This software is distributed in the hope that it will be useful, but
C WITHOUT ANY WARRANTY; without even the implied warranty of
C MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
C General Public License for more details.
C
C You should have received a copy of the GNU General Public License
C along with this software; if not, write to the Free Software
C Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
C USA.
C
SUBROUTINE DRWSTR (U,V,UX,VY,IMAX,JPTSY)
C
PARAMETER (NCHK=750)
C
C THIS ROUTINE DRAWS THE STREAMLINES.
C . THE XCHK AND YCHK ARRAYS SERVE AS A CIRCULAR LIST. THEY
C . ARE USED TO PREVENT LINES FROM CROSSING ONE ANOTHER.
C
C THE WORK ARRAY HAS BEEN BROKEN UP INTO TWO ARRAYS FOR CLARITY. THE
C . TOP HALF OF WORK (CALLED UX) WILL HAVE THE NORMALIZED (AND
C . POSSIBLY TRANSFORMED) U COMPONENTS AND WILL BE USED FOR BOOK
C . KEEPING. THE LOWER HALF OF THE WORK ARRAY (CALLED VY) WILL
C . CONTAIN THE NORMALIZED (AND POSSIBLY TRANSFORMED) V COMPONENTS.
C
DIMENSION U(IMAX,JPTSY) ,V(IMAX,JPTSY)
1 , UX(IMAX,JPTSY) ,VY(IMAX,JPTSY)
COMMON /STR01/ IS ,IEND ,JS ,JEND
1 , IEND1 ,JEND1 ,I ,J
2 , X ,Y ,DELX ,DELY
3 , ICYC1 ,IMSG1 ,IGFL1
COMMON /STR03/ INITA , INITB , AROWL , ITERP , ITERC , IGFLG
1 , IMSG , UVMSG , ICYC , DISPL , DISPC , CSTOP
COMMON /STR04/ XCHK(NCHK) ,YCHK(NCHK) , NUMCHK , UXSML
C
C
SAVE
C
C STATEMENT FUNCTIONS FOR SPATIAL AND VELOCITY TRANSFORMATIONS.
C . (IF THE USER WISHES OTHER TRANSFORMATIONS REPLACE THESE STATEMENT
C . FUNCTIONS WITH THE APPROPRIATE NEW ONES, OR , IF THE TRANSFORMA-
C . TIONS ARE COMPLICATED DELETE THESE STATEMENT FUNCTIONS
C . AND ADD EXTERNAL ROUTINES WITH THE SAME NAMES TO DO THE TRANS-
C . FORMING.)
C
C FX(X,Y) = X
C FY(X,Y) = Y
FU(X,Y) = X
FV(X,Y) = Y
C
C INITIALIZE
C
ISKIP = I1MACH(5) - 2
ISKIP1 = ISKIP + 1
UXSML = R1MACH(3) * DISPL
C
C
NUMCHK = NCHK
LCHK = 1
ICHK = 1
XCHK(1) = 0.
YCHK(1) = 0.
KFLAG = 0
IZERO = 0
IONE = 1
ITWO = 2
C
C
C COMPUTE THE X AND Y NORMALIZED (AND POSSIBLY TRANSFORMED)
C . DISPLACEMENT COMPONENTS (UX AND VY).
C
DO 40 J=JS,JEND
DO 30 I=IS,IEND
UX(I,J) = FU(U(I,J),V(I,J))
VY(I,J) = FV(U(I,J),V(I,J))
IF (UX(I,J).NE.0. .OR. VY(I,J).NE.0.) THEN
CON = DISPL/SQRT(UX(I,J)*UX(I,J) + VY(I,J)*VY(I,J))
UX(I,J) = CON*UX(I,J)
VY(I,J) = CON*VY(I,J)
END IF
C
C BOOKKEEPING IS DONE IN THE LEAST SIGNIFICANT BITS OF THE UX ARRAY.
C . WHEN UX(I,J) IS EXACTLY ZERO THIS CAN PRESENT SOME PROBLEMS.
C . TO GET AROUND THIS PROBLEM, SET IT TO A RELATIVELY SMALL NUMBER.
C
IF(UX(I,J) .EQ. 0.) UX(I,J) = UXSML
C
C MASK OUT THE LEAST SIGNIFICANT TWO BITS AS FLAGS FOR EACH GRID BOX
C . A GRID BOX IS ANY REGION SURROUNDED BY FOUR GRID POINTS.
C . FLAG 1 INDICATES WHETHER ANY STREAMLINE HAS PREVIOUSLY PASSED
C . THROUGH THIS BOX.
C . FLAG 2 INDICATES WHETHER ANY DIRECTIONAL ARROW HAS ALREADY
C . APPEARED IN THIS BOX.
C . JUDICIOUS USE OF THESE FLAGS PREVENTS OVERCROWDING OF
C . STREAMLINES AND DIRECTIONAL ARROWS.
C
CALL SBYTES( UX(I,J) , IZERO , ISKIP , 2 , 0 , 1 )
C
IF (MOD(I,INITA).NE.0 .OR. MOD(J,INITA).NE.0)
1 CALL SBYTES( UX(I,J) , IONE , ISKIP1, 1 , 0 , 1 )
IF (MOD(I,INITB).NE.0 .OR. MOD(J,INITB).NE.0)
1 CALL SBYTES( UX(I,J) , IONE , ISKIP , 1 , 0 , 1 )
C
30 CONTINUE
40 CONTINUE
C
50 CONTINUE
C
C START A STREAMLINE. EXPERIENCE HAS SHOWN THAT A PLEASING PICTURE
C . WILL BE PRODUCED IF NEW STREAMLINES ARE STARTED ONLY IN GRID
C . BOXES THAT PREVIOUSLY HAVE NOT HAD OTHER STREAMLINES PASS THROUGH
C . THEM. AS LONG AS A REASONABLY DENSE PATTERN OF AVAILABLE BOXES
C . IS INITIALLY PRESCRIBED, THE ORDER OF SCANNING THE GRID PTS. FOR
C . AVAILABLE BOXES IS IMMATERIAL
C
C FIND AN AVAILABLE BOX FOR STARTING A STREAMLINE
C
IF (KFLAG.NE.0) GO TO 90
DO 70 J=JS,JEND1
DO 60 I=IS,IEND1
CALL GBYTES( UX(I,J) , IUX , ISKIP , 2 , 0 , 1 )
IF ( IAND( IUX , IONE ) .EQ. IZERO ) GO TO 80
60 CONTINUE
70 CONTINUE
C
C MUST BE NO AVAILABLE BOXES FOR STARTING A STREAMLINE
C
GO TO 190
80 CONTINUE
C
C INITILIZE PARAMETERS FOR STARTING A STREAMLINE
C . TURN THE BOX OFF FOR STARTING A STREAMLINE
C . CHECK TO SEE IF THIS BOX HAS MISSING DATA (IMSG.NE.0). IF SO ,
C . FIND A NEW STARTING BOX
C
CALL SBYTES( UX(I,J) , IONE , ISKIP1 , 1 , 0 , 1 )
IF ( IMSG.EQ.0) GO TO 85
IF (U(I,J).EQ.UVMSG .OR. U(I,J+1).EQ.UVMSG .OR.
1 U(I+1,J).EQ.UVMSG .OR. U(I+1,J+1).EQ.UVMSG) GO TO 50
C
85 ISAV = I
JSAV = J
KFLAG = 1
PLMN1 = +1.
GO TO 100
90 CONTINUE
C
C COME TO HERE TO DRAW IN THE OPPOSITE DIRECTION
C
KFLAG = 0
PLMN1 = -1.
I = ISAV
J = JSAV
100 CONTINUE
C
C INITIATE THE DRAWING SEQUENCE
C . START ALL STREAMLINES IN THE CENTER OF A BOX
C
NBOX = 0
ITER = 0
IF (KFLAG.NE.0) ICHKB = ICHK+1
IF (ICHKB.GT.NUMCHK) ICHKB = 1
X = FLOAT(I)+0.5
Y = FLOAT(J)+0.5
XBASE = X
YBASE = Y
CALL FL2INT (FX(X,Y),FY(X,Y),IFX,IFY)
CALL PLOTIT (IFX,IFY,0)
CALL GBYTES( UX(I,J) , IUX , ISKIP , 2 , 0 , 1 )
IF ( (KFLAG.EQ.0) .OR. (IAND( IUX , ITWO ) .NE. 0 ) ) GO TO 110
C
C GRID BOX MUST BE ELIGIBLE FOR A DIRECTIONAL ARROW
C
CALL GNEWPT (UX,VY,IMAX,JPTSY)
MFLAG = 1
GO TO 160
C
110 CONTINUE
C
C PLOT LOOP
C . CHECK TO SEE IF THE STREAMLINE HAS ENTERED A NEW GRID BOX
C
IF (I.NE.IFIX(X) .OR. J.NE.IFIX(Y)) GO TO 120
C
C MUST BE IN SAME BOX CALCULATE THE DISPLACEMENT COMPONENTS
C
CALL GNEWPT (UX,VY,IMAX,JPTSY)
C
C UPDATE THE POSITION AND DRAW THE VECTOR
C
X = X+PLMN1*DELX
Y = Y+PLMN1*DELY
CALL FL2INT (FX(X,Y),FY(X,Y),IFX,IFY)
CALL PLOTIT (IFX,IFY,1)
ITER = ITER+1
C
C CHECK STREAMLINE PROGRESS EVERY 'ITERP' OR SO ITERATIONS
C
IF (MOD(ITER,ITERP).NE.0) GO TO 115
IF (ABS(X-XBASE).LT.DISPC .AND. ABS(Y-YBASE).LT.DISPC ) GO TO 50
XBASE = X
YBASE = Y
GO TO 110
115 CONTINUE
C
C SHOULD THE CIRCULAR LISTS BE CHECKED FOR STREAMLINE CROSSOVER
C
IF ( (ITERC.LT.0) .OR. (MOD(ITER,ITERC).NE.0) ) GO TO 110
C
C MUST WANT THE CIRCULAR LIST CHECKED
C
GO TO 130
120 CONTINUE
C
C MUST HAVE ENTERED A NEW GRID BOX CHECK FOR THE FOLLOWING :
C . (1) ARE THE NEW POINTS ON THE GRID
C . (2) CHECK FOR MISSING DATA IF MSG DATA FLAG (IMSG) HAS BEEN SET.
C . (3) IS THIS BOX ELIGIBLE FOR A DIRECTIONAL ARROW
C . (4) LOCATION OF THIS ENTRY VERSUS OTHER STREAMLINE ENTRIES
C
NBOX = NBOX+1
C
C CHECK (1)
C
IF (IFIX(X).LT.IS .OR. IFIX(X).GT.IEND1) GO TO 50
IF (IFIX(Y).LT.JS .OR. IFIX(Y).GT.JEND1) GO TO 50
C
C CHECK (2)
C
IF ( IMSG.EQ.0) GO TO 125
II = IFIX(X)
JJ = IFIX(Y)
IF (U(II,JJ).EQ.UVMSG .OR. U(II,JJ+1).EQ.UVMSG .OR.
1 U(II+1,JJ).EQ.UVMSG .OR. U(II+1,JJ+1).EQ.UVMSG) GO TO 50
125 CONTINUE
C
C CHECK (3)
C
CALL GBYTES( UX(I,J) , IUX , ISKIP , 2 , 0 , 1 )
IF ( IAND( IUX , ITWO ) .NE. 0) GO TO 130
MFLAG = 2
GO TO 160
130 CONTINUE
C
C CHECK (4)
C
DO 140 LOC=1,LCHK
IF (ABS( X-XCHK(LOC) ).GT.CSTOP .OR.
1 ABS( Y-YCHK(LOC) ).GT.CSTOP) GO TO 140
LFLAG = 1
IF (ICHKB.LE.ICHK .AND. LOC.GE.ICHKB .AND. LOC.LE.ICHK) LFLAG = 2
IF (ICHKB.GE.ICHK .AND. (LOC.GE.ICHKB .OR. LOC.LE.ICHK)) LFLAG = 2
IF (LFLAG.EQ.1) GO TO 50
140 CONTINUE
LCHK = MIN0(LCHK+1,NUMCHK)
ICHK = ICHK+1
IF (ICHK.GT.NUMCHK) ICHK = 1
XCHK(ICHK) = X
YCHK(ICHK) = Y
I = IFIX(X)
J = IFIX(Y)
CALL SBYTES( UX(I,J) , IONE , ISKIP1 , 1 , 0 , 1 )
IF (NBOX.LT.5) GO TO 150
ICHKB = ICHKB+1
IF (ICHKB.GT.NUMCHK) ICHKB = 1
150 CONTINUE
GO TO 110
C
160 CONTINUE
C
C THIS SECTION DRAWS A DIRECTIONAL ARROW BASED ON THE MOST RECENT DIS-
C . PLACEMENT COMPONENTS ,DELX AND DELY, RETURNED BY GNEWPT. IN EARLIE
C . VERSIONS THIS WAS A SEPARATE SUBROUTINE (CALLED DRWDAR). IN THAT
C . CASE ,HOWEVER, FX AND FY WERE DEFINED EXTERNAL SINCE THESE
C . FUNCTIONS WERE USED BY BOTH DRWSTR AND DRWDAR. IN ORDER TO
C . MAKE ALL DEFAULT TRANSFORMATIONS STATEMENT FUNCTIONS I HAVE
C . PUT DRWDAR HERE AND I WILL USE MFLAG TO RETURN TO THE CORRECT
C . LOCATION IN THE CODE.
C
IF ( (DELX.EQ.0.) .AND. (DELY.EQ.0.) ) GO TO 50
C
CALL SBYTES( UX(I,J) ,IONE , ISKIP , 1 ,0 , 1 )
D = ATAN2(-DELX,DELY)
D30 = D+0.5
170 YY = -AROWL*COS(D30)+Y
XX = +AROWL*SIN(D30)+X
CALL FL2INT (FX(XX,YY),FY(XX,YY),IFXX,IFYY)
CALL PLOTIT (IFXX,IFYY,1)
CALL FL2INT (FX(X,Y),FY(X,Y),IFX,IFY)
CALL PLOTIT (IFX,IFY,0)
IF (D30.LT.D) GO TO 180
D30 = D-0.5
GO TO 170
180 IF (MFLAG.EQ.1) GO TO 110
IF (MFLAG.EQ.2) GO TO 130
C
190 CONTINUE
C
C FLUSH PLOTIT BUFFER
C
CALL PLOTIT(0,0,0)
RETURN
END
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