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96 lines
2.6 KiB
96 lines
2.6 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 PLTSPC(S1,RED1,GREEN1,BLUE1,S2,RED2,GREEN2,BLUE2)
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REAL DEVCAP(23)
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REAL DEFOUT(7)
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COMMON /STATUS/DEVCAP,DEFOUT
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REAL DEVP(5)
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COMMON /DEVICE/DEVP
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REAL COLP(3)
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REAL PALETT(3,16)
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COMMON /COLOR/COLP,PALETT
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REAL TEXTP(40)
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COMMON /TEXT/TEXTP
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REAL VECTP(5)
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REAL XCUR
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REAL YCUR
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COMMON /VECTRC/VECTP,XCUR,YCUR
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INTEGER IDEX(200,2)
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INTEGER NVECT(200,2)
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REAL XSIZE(200,2)
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REAL YSIZE(200,2)
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REAL X0(2300,2)
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REAL Y0(2300,2)
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REAL X1(2300,2)
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REAL Y1(2300,2)
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COMMON /FONT/IDEX,NVECT,XSIZE,YSIZE,X0,Y0,X1,Y1
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REAL GRAPHP(100)
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COMMON /GRAPH/GRAPHP
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COMMON /MAPPAR/MAPP(11)
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REAL MAPP
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COMMON /STORAG/MEMORY(1000)
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DIMENSION DCOLOR(3,256),ICOL(256)
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IF (S1.LT.0. .OR. S1.GE.1.) THEN
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CALL PLTFLU
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CALL SIORPT('PLTSPC',
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* 'Starting value of color spectrum is out of range',
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* 2)
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RETURN
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END IF
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IF (S2.LE.0. .OR. S2.GT.1.) THEN
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CALL PLTFLU
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CALL SIORPT('PLTSPC',
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* 'Ending value of color spectrum is out of range',2)
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RETURN
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END IF
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IF (S2.LE.S1) THEN
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CALL PLTFLU
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CALL SIORPT('PLTSPC',
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*'Starting value of color spectrum must be less than the ending val
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*ue',2)
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RETURN
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END IF
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IF (COLP(3).EQ.0.) THEN
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RETURN
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END IF
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I1 = INT(COLP(2)) + NINT(S1*COLP(3))
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I2 = INT(COLP(2)) + NINT(S2*COLP(3)-1.)
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IDS = I2 - I1 + 1
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DS = IDS
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DR = (RED2-RED1)/DS
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DG = (GREEN2-GREEN1)/DS
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DB = (BLUE2-BLUE1)/DS
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ICOL(1) = I1
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DCOLOR(1,1) = RED1
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DCOLOR(2,1) = GREEN1
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DCOLOR(3,1) = BLUE1
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DO 2000 I = 2,IDS
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ICOL(I) = ICOL(I-1) + 1
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DCOLOR(1,I) = DCOLOR(1,I-1) + DR
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DCOLOR(1,I) = MAX(0.,DCOLOR(1,I))
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DCOLOR(1,I) = MIN(1.,DCOLOR(1,I))
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DCOLOR(2,I) = DCOLOR(2,I-1) + DG
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DCOLOR(2,I) = MAX(0.,DCOLOR(2,I))
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DCOLOR(2,I) = MIN(1.,DCOLOR(2,I))
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DCOLOR(3,I) = DCOLOR(3,I-1) + DB
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DCOLOR(3,I) = MAX(0.,DCOLOR(3,I))
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DCOLOR(3,I) = MIN(1.,DCOLOR(3,I))
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2000 CONTINUE
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CALL VDSTCO(IDS,ICOL,DCOLOR,0)
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RETURN
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END
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