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73 lines
2.7 KiB
73 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 MPD2VC(N,X0,Y0,X1,Y1)
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COMMON /MAP/MODEL(4,4),VIEW(4,4),PROJ(4,4),CPNEAR,CPFAR,VWPORT(4),
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+ MVP(4,4),VP(4,4),CPLINE(2,2,10),CPPLAN(2,3,10),PEYE(3),
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+ PLOOK(3),ETWIST,NCPLIN,NCPLAN,TMAT1(4,4),TMAT2(4,4),
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+ TMAT3(4,4),TVEC1(4),TVEC2(4),TVEC3(4),TVEC4(4),TARR1(32),
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+ TARR2(32),TARR3(32),TARR4(32),TARR5(32),TARR6(32),
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+ TARR7(32),TARR8(32)
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REAL MODEL,MVP
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LOGICAL NOCLIP
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DIMENSION C1(2),C2(2),X0(*),Y0(*),X1(*),Y1(*)
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INTEGER MASK(1)
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VCX = (VWPORT(1)+VWPORT(2))/2.
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VSX = (VWPORT(2)-VWPORT(1))/2.
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VCY = (VWPORT(3)+VWPORT(4))/2.
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VSY = (VWPORT(4)-VWPORT(3))/2.
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NOCLIP = (NCPLIN.EQ.0)
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J = 0
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10 CONTINUE
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IF ((J.LT.N)) THEN
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JN = MIN(N-J,32)
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J1 = J
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J = J + JN
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MASK(1) = -1
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IF (NOCLIP) THEN
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CALL MPMUL2(JN,X0(1+J1),Y0(1+J1),MVP,TARR1,TARR2,TARR3,
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+ TARR4)
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CALL MPMUL2(JN,X1(1+J1),Y1(1+J1),MVP,TARR5,TARR6,TARR7,
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+ TARR8)
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ELSE
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CALL MPMUL2(JN,X0(1+J1),Y0(1+J1),MODEL,TARR1,TARR2,TARR3,
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+ TARR4)
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CALL MPMUL2(JN,X1(1+J1),Y1(1+J1),MODEL,TARR5,TARR6,TARR7,
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+ TARR8)
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DO 20 K = 1,NCPLIN
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C1(1) = CPLINE(1,1,K)
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C1(2) = CPLINE(1,2,K)
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C2(1) = CPLINE(2,1,K)
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C2(2) = CPLINE(2,2,K)
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CALL PLTCV2(JN,MASK,TARR1,TARR2,TARR5,TARR6,TARR1,
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+ TARR2,TARR5,TARR6,C1,C2)
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20 CONTINUE
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CALL MPMUL4(JN,MASK(1),TARR1,TARR2,TARR3,TARR4,VP,TARR1,
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+ TARR2,TARR3,TARR4)
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CALL MPMUL4(JN,MASK(1),TARR5,TARR6,TARR7,TARR8,VP,TARR5,
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+ TARR6,TARR7,TARR8)
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END IF
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DO 30 I = 1,JN
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TARR1(I) = (TARR1(I)/TARR4(I))*VSX + VCX
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TARR2(I) = (TARR2(I)/TARR4(I))*VSY + VCY
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TARR5(I) = (TARR5(I)/TARR8(I))*VSX + VCX
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TARR6(I) = (TARR6(I)/TARR8(I))*VSY + VCY
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30 CONTINUE
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C1(1) = VWPORT(1)
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C1(2) = VWPORT(3)
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C2(1) = VWPORT(2)
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C2(2) = VWPORT(4)
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CALL PLTVWV(C1,C2,JN,MASK,TARR1,TARR2,TARR5,TARR6)
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CALL PLTVCM(JN,MASK,TARR1,TARR2,TARR5,TARR6)
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GO TO 10
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END IF
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END
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