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82 lines
2.7 KiB
82 lines
2.7 KiB
C Copyright(C) 1999-2020 National Technology & Engineering Solutions
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C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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C NTESS, the U.S. Government retains certain rights in this software.
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C
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C See packages/seacas/LICENSE for details
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C=======================================================================
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SUBROUTINE CONLAB (ICNTR, CNTR, NHIT, LABINC, LINSET,
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& VARNP, XN, YN, ZN, IN2ELB, *)
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C=======================================================================
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C --*** CONLAB *** (DETOUR) Label contour line
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C -- Written by Amy Gilkey - revised 06/01/87
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C -- D. P. Flanagan, 03/30/83
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C --
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C --CONLAB labels a contour line that intersects the given line with the
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C --contour letter. If LABINC is greater than one, only every LABINCth
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C --crossing is labeled.
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C --
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C --Parameters:
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C -- ICNTR - IN - the contour label number
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C -- CNTR - IN - the contour value
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C -- NHIT - IN/OUT - the number of "hits" so far, initialize to zero
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C -- LABINC - IN - the number of "hits" to skip before labelling
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C -- LINSET - IN - the line set
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C -- VARNP - IN - the contour function values
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C -- XN, YN, ZN - IN - the nodal coordinates
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C -- IN2ELB - IN - the element block for each node;
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C -- <0 if not in any selected element block
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C -- =0 if in more than one selected element block
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C -- * - return statement if the cancel function is active
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C --
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C --Common Variables:
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C -- Uses IS3DIM of /D3NUMS/
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PARAMETER (DXO = .0015, DYO = .0015)
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COMMON /D3NUMS/ IS3DIM, NNPSUR, NUMNPF, LLNSET
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LOGICAL IS3DIM
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INTEGER LINSET(3)
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REAL VARNP(*)
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REAL XN(*), YN(*), ZN(*)
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INTEGER IN2ELB(*)
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LOGICAL INTERP_BL
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LOGICAL GRABRT
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LOGICAL EXISTS
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EXISTS (M) = (MOD(M,2) .NE. 0)
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IF (IS3DIM) THEN
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C --Skip invisible line
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IF (LINSET(3) .EQ. 0) GOTO 100
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END IF
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N1 = LINSET(1)
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N2 = LINSET(2)
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IF ((IN2ELB(N1) .GE. 0) .AND. (IN2ELB(N2) .GE. 0)) THEN
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IF (INTERP_BL (CNTR, VARNP(N1), VARNP(N2), PSI)) THEN
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NHIT = NHIT + 1
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IF (NHIT .GE. LABINC) THEN
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IF (GRABRT ()) RETURN 1
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IF (IS3DIM) THEN
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C --Replace invisible node with partial line node
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IF (ABS (LINSET(3)) .GT. 1)
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& N2 = ABS (LINSET(3))
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END IF
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X0 = XN(N1) * (1.-PSI) + XN(N2) * PSI
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Y0 = YN(N1) * (1.-PSI) + YN(N2) * PSI
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CALL MP2PT (1, X0, Y0, DX0, DY0, MASK)
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IF (EXISTS (MASK)) CALL PLTXTS (DX0+DXO, DY0+DYO,
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& CHAR (ICHAR('A')-1+ICNTR))
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NHIT = 0
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END IF
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END IF
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END IF
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100 CONTINUE
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RETURN
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END
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