C Copyright(C) 1999-2020 National Technology & Engineering Solutions
C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
C NTESS, the U.S. Government retains certain rights in this software.
C
C See packages/seacas/LICENSE for details
C=======================================================================
SUBROUTINE CMDCUT (VERB, INLINE, IFLD, INTYP, CFIELD,
& RFIELD, A, *)
C=======================================================================
C --*** CMDCUT *** (MESH) Process cut commands
C -- Written by Amy Gilkey - revised 03/11/88
C --
C --Parameters:
C -- VERB - I/O - the verbs for the SHOW command
C -- INLINE - I/O- the parsed input line for the log file
C -- IFLD, - I/O - the free-field reader index and fields
C -- INTYP, - I/O - the free-field reader index and fields
C -- CFIELD, - I/O - the free-field reader index and fields
C -- RFIELD - I/O - the free-field reader index and fields
C -- A - IN - the dynamic memory base array
C --
C --Common Variables:
C -- Uses IS3DIM, NUMNPF of /D3NUMS/
C -- Uses DFAC of /DEFORM/
C -- Uses UNMESH of /MSHLIM/
C -- Sets NEWCUT, ISCUT, CUTPT, CUTNRM of /CUTOPT/
C -- Uses PKRMAT, PKRCEN of /PICK/
PARAMETER (KLFT=1, KRGT=2, KBOT=3, KTOP=4, KNEA=5, KFAR=6)
include 'dbnums.blk'
include 'd3nums.blk'
include 'deform.blk'
include 'mshlim.blk'
include 'cutopt.blk'
include 'pick.blk'
CHARACTER*(*) VERB
CHARACTER*(*) INLINE
INTEGER INTYP(*)
CHARACTER*(*) CFIELD(*)
REAL RFIELD(*)
DIMENSION A(*)
LOGICAL ISON
REAL RNUM(6)
REAL CUTPLA(3,3)
LOGICAL FFMATC
LOGICAL LDUM1, LDUM2
C PUT VERB IN OUTPUT STRING
CALL FFADDC (VERB, INLINE)
C CHECK THAT WE ARE ID 3D
IF (.NOT. IS3DIM) THEN
CALL PRTERR ('CMDERR', 'Command allowed in 3D only')
GOTO 100
END IF
C SET NEWCUT FLAG
IF (ISCUT) NEWCUT = .TRUE.
ISCUT = .FALSE.
C "CUT OFF" COMMAND
IF (FFMATC (IFLD, INTYP, CFIELD, 'OFF', 3)) THEN
CALL FFADDC ('OFF', INLINE)
NEWCUT = .TRUE.
ISCUT = .FALSE.
C ISSUE WARNING
ELSE
IF (DFAC .NE. 0.0) THEN
CALL PRTERR ('CMDWARN',
& 'Cut is performed on undeformed mesh')
END IF
C "CUT SCREEN" COMMAND
IF (FFMATC (IFLD, INTYP, CFIELD, 'SCREEN', 1)) THEN
ISON = .TRUE.
C --Pick two points forming a line with a third point forming
C --a plane along the displayed Z axis
CALL PICK2D ('first plane point', ISON,
& .TRUE., IFLD, INTYP, RFIELD,
& RNUM(1), RNUM(2), *100)
CALL PICK2D ('other plane point', ISON,
& .FALSE., IFLD, INTYP, RFIELD,
& RNUM(3), RNUM(4), *100)
CALL UNROT (1, 1, PKRMAT, PKRCEN,
& RNUM(1), RNUM(2), UNMESH(KNEA),
& CUTPLA(1,1), CUTPLA(2,1), CUTPLA(3,1))
CALL UNROT (1, 1, PKRMAT, PKRCEN,
& RNUM(3), RNUM(4), UNMESH(KNEA),
& CUTPLA(1,2), CUTPLA(2,2), CUTPLA(3,2))
CALL UNROT (1, 1, PKRMAT, PKRCEN,
& RNUM(1), RNUM(2), UNMESH(KFAR),
& CUTPLA(1,3), CUTPLA(2,3), CUTPLA(3,3))
C --Determine which side is being cut away
CALL PICK2D ('point in cut mesh', ISON,
& .FALSE., IFLD, INTYP, RFIELD,
& RNUM(5), RNUM(6), *100)
CALL UNROT (1, 1, PKRMAT, PKRCEN,
& RNUM(5), RNUM(6), UNMESH(KNEA),
& RNUM(1), RNUM(2), RNUM(3))
C ENTER POINTS IN THE OUTPUT STRING
CALL FFADDR (CUTPLA(1,1), INLINE)
CALL FFADDR (CUTPLA(2,1), INLINE)
CALL FFADDR (CUTPLA(3,1), INLINE)
CALL FFADDR (CUTPLA(1,2), INLINE)
CALL FFADDR (CUTPLA(2,2), INLINE)
CALL FFADDR (CUTPLA(3,2), INLINE)
CALL FFADDR (CUTPLA(1,3), INLINE)
CALL FFADDR (CUTPLA(2,3), INLINE)
CALL FFADDR (CUTPLA(3,3), INLINE)
CALL FFADDR (RNUM(1), INLINE)
CALL FFADDR (RNUM(2), INLINE)
CALL FFADDR (RNUM(3), INLINE)
C GET CUT POINT AND NORMAL FROM THREE POINTS AND POINT IN MESH
CALL PTSNRM(CUTPLA, RNUM, CUTPT, CUTNRM, IERR)
IF(IERR .NE. 0) GO TO 100
C "CUT NORM" COMMAND
ELSE IF (FFMATC (IFLD, INTYP, CFIELD, 'NORM', 1)) THEN
CALL FFADDC ('NORM', INLINE)
ISON = FFMATC (IFLD, INTYP, CFIELD, 'CURSOR', 1)
C GET POINT ON CUT SURFACE
CALL QNPICK ('DISPLAYED', LDUM1, LDUM2,
& A, KXN, KYN, KZN, KHIDEN, KNPSUR)
CALL PICK3D ('point on cut surface', ISON,
& NUMNPF, A(KXN), A(KYN), A(KZN), A(KHIDEN),
& .TRUE., IFLD, INTYP, RFIELD,
& CUTPT(1), CUTPT(2), CUTPT(3), *100)
C GET POINT FOR NORMAL
CALL PICK3D ('point for normal direction', ISON,
& NUMNPF, A(KXN), A(KYN), A(KZN), A(KHIDEN),
& .TRUE., IFLD, INTYP, RFIELD,
& CUTNRM(1), CUTNRM(2), CUTNRM(3), *100)
C ENTER CUT POINT IN OUTPUT STRING
CALL FFADDR (CUTPT(1), INLINE)
CALL FFADDR (CUTPT(2), INLINE)
CALL FFADDR (CUTPT(3), INLINE)
C IF IN CURSOR MODE, THEN SUBTRACT NORMAL FROM CUT POINT TO GET THE
C NORMAL DIRECTION
IF (ISON) THEN
CUTNRM(1) = CUTNRM(1) - CUTPT(1)
CUTNRM(2) = CUTNRM(2) - CUTPT(2)
CUTNRM(3) = CUTNRM(3) - CUTPT(3)
END IF
C ENTER NORMAL POINT IN OUTPUT STRING
CALL FFADDR (CUTNRM(1), INLINE)
CALL FFADDR (CUTNRM(2), INLINE)
CALL FFADDR (CUTNRM(3), INLINE)
C CALCULATE NORMAL AND NORMALIZE
DIST = SQRT(CUTNRM(1)*CUTNRM(1) + CUTNRM(2)*CUTNRM(2)
& + CUTNRM(3)*CUTNRM(3))
IF (DIST .EQ. 0) GO TO 100
CUTNRM(1) = CUTNRM(1)/DIST
CUTNRM(2) = CUTNRM(2)/DIST
CUTNRM(3) = CUTNRM(3)/DIST
C "CUT" COMMANDS
ELSE
ISON = FFMATC (IFLD, INTYP, CFIELD, 'CURSOR', 1)
C --Pick three points on the cutting plane
CALL QNPICK ('DISPLAYED', LDUM1, LDUM2,
& A, KXN, KYN, KZN, KHIDEN, KNPSUR)
CALL PICK3D ('first plane point', ISON,
& NUMNPF, A(KXN), A(KYN), A(KZN), A(KHIDEN),
& .TRUE., IFLD, INTYP, RFIELD,
& CUTPLA(1,1), CUTPLA(2,1), CUTPLA(3,1), *100)
CALL PICK3D ('second plane point', ISON,
& NUMNPF, A(KXN), A(KYN), A(KZN), A(KHIDEN),
& .FALSE., IFLD, INTYP, RFIELD,
& CUTPLA(1,2), CUTPLA(2,2), CUTPLA(3,2), *100)
CALL PICK3D ('third plane point', ISON,
& NUMNPF, A(KXN), A(KYN), A(KZN), A(KHIDEN),
& .FALSE., IFLD, INTYP, RFIELD,
& CUTPLA(1,3), CUTPLA(2,3), CUTPLA(3,3), *100)
C --Determine which side is being cut away
CALL PICK3D ('point in cut mesh', ISON,
& NUMNPF, A(KXN), A(KYN), A(KZN), A(KHIDEN),
& .FALSE., IFLD, INTYP, RFIELD,
& RNUM(1), RNUM(2), RNUM(3), *100)
C ENTER POINTS IN OUTPUT STRING
CALL FFADDR (CUTPLA(1,1), INLINE)
CALL FFADDR (CUTPLA(2,1), INLINE)
CALL FFADDR (CUTPLA(3,1), INLINE)
CALL FFADDR (CUTPLA(1,2), INLINE)
CALL FFADDR (CUTPLA(2,2), INLINE)
CALL FFADDR (CUTPLA(3,2), INLINE)
CALL FFADDR (CUTPLA(1,3), INLINE)
CALL FFADDR (CUTPLA(2,3), INLINE)
CALL FFADDR (CUTPLA(3,3), INLINE)
CALL FFADDR (RNUM(1), INLINE)
CALL FFADDR (RNUM(2), INLINE)
CALL FFADDR (RNUM(3), INLINE)
C GET CUT POINT AND NORMAL FROM THREE POINTS AND POINT IN MESH
CALL PTSNRM(CUTPLA, RNUM, CUTPT, CUTNRM, IERR)
IF(IERR .NE. 0) GO TO 100
END IF
C SET CUTTING FLAGS
NEWCUT = .TRUE.
ISCUT = .TRUE.
END IF
RETURN
100 CONTINUE
RETURN 1
END