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