You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.6 KiB
76 lines
2.6 KiB
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 MP2VC(N,X0,Y0,X1,Y1,PX,PY,QX,QY,MASK)
|
|
COMMON /MAP/MODEL(4,4),VIEW(4,4),PROJ(4,4),CPNEAR,CPFAR,VWPORT(4),
|
|
* MVP(4,4),VP(4,4),CPLINE(2,2,10),CPPLAN(2,3,10),PEYE(3),
|
|
* PLOOK(3),ETWIST,NCPLIN,NCPLAN,TMAT1(4,4),TMAT2(4,4),
|
|
* TMAT3(4,4),TVEC1(4),TVEC2(4),TVEC3(4),TVEC4(4),TARR1(32),
|
|
* TARR2(32),TARR3(32),TARR4(32),TARR5(32),TARR6(32),
|
|
* TARR7(32),TARR8(32)
|
|
REAL MODEL,MVP
|
|
LOGICAL NOCLIP
|
|
DIMENSION C1(2),C2(2),X0(*),Y0(*),X1(*),Y1(*),PX(*),PY(*),QX(*),
|
|
* QY(*),MASK(*)
|
|
|
|
VCX = (VWPORT(1)+VWPORT(2))/2.
|
|
VSX = (VWPORT(2)-VWPORT(1))/2.
|
|
VCY = (VWPORT(3)+VWPORT(4))/2.
|
|
VSY = (VWPORT(4)-VWPORT(3))/2.
|
|
NOCLIP = (NCPLIN.EQ.0)
|
|
KM = 0
|
|
J = 0
|
|
2140 IF (.NOT. (J.LT.N)) GO TO 2150
|
|
JN = MIN(N-J,32)
|
|
J1 = J
|
|
KM = KM + 1
|
|
J = J + JN
|
|
MASK(KM) = -1
|
|
IF (NOCLIP) THEN
|
|
CALL MPMUL2(JN,X0(1+J1),Y0(1+J1),MVP,TARR1,TARR2,TARR3,TARR4)
|
|
CALL MPMUL2(JN,X1(1+J1),Y1(1+J1),MVP,TARR5,TARR6,TARR7,TARR8)
|
|
|
|
ELSE
|
|
CALL MPMUL2(JN,X0(1+J1),Y0(1+J1),MODEL,TARR1,TARR2,TARR3,TARR4)
|
|
CALL MPMUL2(JN,X1(1+J1),Y1(1+J1),MODEL,TARR5,TARR6,TARR7,TARR8)
|
|
DO 2160 K = 1,NCPLIN
|
|
C1(1) = CPLINE(1,1,K)
|
|
C1(2) = CPLINE(1,2,K)
|
|
C2(1) = CPLINE(2,1,K)
|
|
C2(2) = CPLINE(2,2,K)
|
|
CALL PLTCV2(JN,MASK(KM),TARR1,TARR2,TARR5,TARR6,TARR1,TARR2,
|
|
* TARR5,TARR6,C1,C2)
|
|
2160 CONTINUE
|
|
CALL MPMUL4(JN,MASK(KM),TARR1,TARR2,TARR3,TARR4,VP,TARR1,TARR2,
|
|
* TARR3,TARR4)
|
|
CALL MPMUL4(JN,MASK(KM),TARR5,TARR6,TARR7,TARR8,VP,TARR5,TARR6,
|
|
* TARR7,TARR8)
|
|
END IF
|
|
|
|
DO 2180 I = 1,JN
|
|
TARR1(I) = (TARR1(I)/TARR4(I))*VSX + VCX
|
|
TARR2(I) = (TARR2(I)/TARR4(I))*VSY + VCY
|
|
TARR5(I) = (TARR5(I)/TARR8(I))*VSX + VCX
|
|
TARR6(I) = (TARR6(I)/TARR8(I))*VSY + VCY
|
|
2180 CONTINUE
|
|
C1(1) = VWPORT(1)
|
|
C1(2) = VWPORT(3)
|
|
C2(1) = VWPORT(2)
|
|
C2(2) = VWPORT(4)
|
|
CALL PLTVWV(C1,C2,JN,MASK(KM),TARR1,TARR2,TARR5,TARR6)
|
|
DO 2200 I = 1,JN
|
|
PX(J1+I) = TARR1(I)
|
|
PY(J1+I) = TARR2(I)
|
|
QX(J1+I) = TARR5(I)
|
|
QY(J1+I) = TARR6(I)
|
|
2200 CONTINUE
|
|
GO TO 2140
|
|
|
|
2150 CONTINUE
|
|
RETURN
|
|
|
|
END
|
|
|