COMMENT ⊗   VALID 00002 PAGES
C REC  PAGE   DESCRIPTION
C00001 00001
C00002 00002		SUBROUTINE PLTMAN
C00010 ENDMK
C⊗;
	SUBROUTINE PLTMAN

	COMMON/PLT/JX,JY,JPL,PLT,REV,RINV,IROT,RLR,RUD,CONST,E
	1 ,JREV,JINV,KA,KB,KC,KD,RTO,JA,JB,JAR,JBR,A,IA,IB,IC,ID
	COMMON/CLR/KP,KQ,KR,KS,P

	EQUIVALENCE(LIST,CURV)

	DIMENSION CURV(2,3000),HIST(0/63),DIF(3)

	COMMON /EDGEC/ A0,A1,A2,A3,A4,A5,A6,A7,
	1 DEBUG,TE(1),XP(1),YP(1),PARMAX,
	1 HALF,FILE,RR,COH,RX,RY,CL,SL,D,B,FOUND

	COMMON /LISTC/LIST(6,1000),LIST5(0/1000),NEWEND,LO

	COMMON/COMMAC/BCLIP,TCLIP,BITS,IWID,LINLEN,FLINE,LLINE,
	1 LSIDE,RSIDE,DTA,HYSTAB(1)
	COMMON/FU/FUJ(512),JJX,RDIV,ADML /OUTF/IOUT,IXGP
	INTEGER FI,FILEN,EWE,HIST,BITS,
	1 XIX,XI,FLINE,RSIDE,
	1 NUM2,NUM3,IDD,PL,LIST5,X

	REAL LIST,RR,CL,SL,LEAP,LEA6,LEA3,CONST,FRAC,
	1 RX,RY,TEXT,TH,W1,W2,B1,B2,V1,V2,
	1 LV,LW,LB,D1,D2,CURV,T,X1,X2,A1,A2,C1,C2,MA,LC,
	1 D,B,DIF,B0,BB1,C3,C4
	DATA JJX/2/
	DIF(1)=0.0
	B0=0.0
	BB1=2**BITS-1
	IXYZ=0
	CONST=2.41
	IF(FLINE.EQ.0.AND.LSIDE.EQ.0.AND.
	1 LLINE.EQ.252.AND.RSIDE.EQ.251) CONST=CONST*.6667
68	LEAP=(RR/2.+CONST)*RTO
	LEA6=LEAP/6.
	LEA3=LEAP/3.
	TH=(LEAP**2)*0.075

	DO 70 IDD=0,63
70	HIST(IDD)=0
	FRAC=64.0/FLOAT(2**BITS)
	DO 100 XIX=1,NEWEND
	IDD=IFIX(LIST(5,XIX)*FRAC+0.5)
	IF(0.GT.IDD) IDD=0
	IF(63.LT.IDD) IDD=63
	HIST(IDD)=HIST(IDD)+1
100	CONTINUE

	DO 110 IDD=1,63
110	HIST(IDD)=HIST(IDD)+HIST(IDD-1)
	IF(HIST(63).NE.NEWEND) PAUSE 'ERROR IN PLOU'
	NUM2=IFIX(FLOAT(NEWEND)/3.+0.5)
	NUM3=IFIX(FLOAT(NEWEND)*2./3.+0.5)
	DO  121 IDD=1,63
	IF(NUM2.GE.(HIST(IDD)+HIST(IDD-1))/2) DIF(2)=FLOAT(
	1 IDD)/FRAC
121	IF(NUM3.GE.(HIST(IDD)+HIST(IDD-1))/2) DIF(3)=FLOAT(
	1 IDD)/FRAC

	DO 123 I=0,1000
123	LIST5(I)=1

125	XI=1
	DO 120 XIX=1,NEWEND
	D=LIST(5,XIX)
	B=LIST(6,XIX)
	IF(((B+D.LT.B0+DIF(1)).OR.(B.GT.BB1-DIF(1)
	1 )).OR.(D.LT.DIF(1))) GOTO 120
	RX=LIST(1,XIX)*RTO
	RY=LIST(2,XIX)*RTO
	CL=LIST(3,XIX)*LEA6
	SL=LIST(4,XIX)*LEA6
	CURV(1,XI)=RX-SL
	CURV(2,XI)=RY+CL
	CURV(3,XI)=RX+SL
	CURV(4,XI)=RY-CL
	IF(((B+D.LT.B0+DIF(2)).OR.(B.GT.BB1-DIF(2)
	1 )).OR.(D.LT.DIF(2))) GOTO 118
	LIST5((XI-1)/2)=2
	IF(((B+D.LT.B0+DIF(3)).OR.(B.GT.BB1-DIF(3)
	1 )).OR.(D.LT.DIF(3))) GOTO 118
	LIST5((XI-1)/2)=3
118	XI=XI+2
120	CONTINUE

	DO 400 PL=1,3

	GOTO(140,130,130),PL
130	X=1
	DO 136 XI=1,EWE-3,2
	I=(XI-1)/2
	IF(LIST5(I).LT.PL) GOTO 136
	C1=CURV(1,XI)
	C2=CURV(2,XI)
	C3=CURV(3,XI)
	C4=CURV(4,XI)
	CURV(1,X)=C1
	CURV(2,X)=C2
	CURV(3,X)=C3
	CURV(4,X)=C4
	LIST5((X-1)/2)=LIST5(I)
	X=X+2
136	CONTINUE
	XI=X

140	EWE=XI+1
	FI=1
	LA=0
	DO 135 XIX=4,EWE,2
	LI=XIX-2

	IF((2.*CURV(1,LI)-CURV(1,XIX-3)-2.*CURV(1,XIX-1)+
	1 CURV(1,XIX))**2+(2.*CURV(2,LI)-CURV(2,XIX-3)-
	1 2.*CURV(2,XIX-1)+CURV(2,XIX))**2.LT.TH) GOTO 135

	LA=LI
	KI=FI+1
	IF(KI.EQ.LA) GOTO 200
	IF(PL.GT.1) GOTO 200

	CURV(1,FI)=CURV(1,FI)*1.5-CURV(1,KI)*0.5
	CURV(2,FI)=CURV(2,FI)*1.5-CURV(2,KI)*0.5
	CURV(1,LA)=CURV(1,LA)*1.5-CURV(1,LA-1)*0.5
	CURV(2,LA)=CURV(2,LA)*1.5-CURV(2,LA-1)*0.5

200	JA=RLR*(CURV(1,FI)-36.)+.5
	JB=RUD*(CURV(2,FI)-120.)+.5
CC	IF(IABS(JA-JAR).LT.4.AND.IABS(JB-JBR).LT.4)JCNT=JCNT+1
	JA=JA/JPL
	JB=JB/JPL
	CALL LINES(3)
2002	NI=LA-2
	JI=FI-1
	DO 210 I=JI,NI
	KI=I+1
	LI=KI+1
	MI=LI+1
	B1=CURV(1,LI)-CURV(1,KI)
	B2=CURV(2,LI)-CURV(2,KI)
	IF (I.EQ.JI) GOTO 202
	A1=CURV(1,KI)-CURV(1,I)
	A2=CURV(2,KI)-CURV(2,I)
	GOTO 204
202	A1=B1
	A2=B2
204	IF (I.EQ.NI) GOTO 206
	C1=CURV(1,MI)-CURV(1,LI)
	C2=CURV(2,MI)-CURV(2,LI)
	GOTO 208
206	C1=B1
	C2=B2
208	MA=A1**2+A2**2
	LB=B1**2+B2**2
	LC=C1**2+C2**2
	V1=A1*LB+B1*MA
	V2=A2*LB+B2*MA
	W1=B1*LC+C1*LB
	W2=B2*LC+C2*LB
	LV=SQRT(V1**2+V2**2)
	LW=SQRT(W1**2+W2**2)
	LB=SQRT(LB)
CC	IF (LV.LT.1.E-6.OR.LW.LT.1.E-6) PAUSE 'LV LW'
	AA=LB*.5858
	AB=AA/LW
	AA=AA/LV
	V1=V1*AA
	V2=V2*AA
	W1=W1*AB
	W2=W2*AB
	D1=B1-V1-W1
	D2=B2-V2-W2

	DO 220 K=1,8
	T=FLOAT(K)/8.
	T1=2.-T
	T2=3.-2.*T
	IX1=RLR*(CURV(1,KI)-36.+(V1*T1+(W1+D1*T2)*T)*T+.5)
	IX2=RUD*(CURV(2,KI)-120.+(V2*T1+(W2+D2*T2)*T)*T+.5)
	NA=2
	JA=IX1/JPL
	JB=IX2/JPL
	IF(P)GO TO 421
	IF(JA.GE.KP.AND.JA.LE.KQ.AND.JB.GE.KR.AND.JB.
	1 LE.KS)NA=3
421	IF(A)GO TO 221
	IF(JA.GE.KA.AND.JA.LE.KB.AND.JB.GE.KC.AND.JB.
	1 LE.KD)NA=3
221	IF(E)GO TO 220
	IF(JA.LE.IA.OR.JA.GE.IB.OR.JB.LE.IC.OR.JB.GE.ID)NA=3
C   LEAVES CLEAR AREA
220	IF(PLT)CALL LINES(NA)
	IF(PLT)GO TO 210
2222	IF(IXYZ)GO TO 211
	CALL LINES(NA)
211	IXYZ=IXYZ-1
	IF(IXYZ.EQ.-3)IXYZ=0
C  DPY EVERY 5TH TIME.
210	CONTINUE

	IF(PLT.NE.0)GO TO 135
CPP	IF(MOD(XIX,8).EQ.0)CALL DPYOUT(1)
135	FI=LA+1
CPP	IF(PLT.EQ.0)CALL DPYOUT(1)
	GOTO(300,300,500),PL
300	IF(PLT.EQ.0)CALL DPYOUT(1)
	TYPE 301
	ACCEPT 1001,WHICH
	IF(WHICH.EQ.'E'.OR.WHICH.EQ.'X')GO TO 500
	IF(WHICH.EQ.'R')GO TO 500
C  R=GO BACK FOR CHANGE BEFORE FINAL END.
301	FORMAT(' CHANGE THE PEN OR R(ETURN)',$)
	IF(PLT.EQ.0)GO TO 400
	JX=JX+JJX+IXGP
	JY=JY+JJX+IXGP
C  MOVES PEN JJX NOTCHES EACH TIME AROUND. (2 FOR CALCOMP, 1 FOR XGP)
400	CONTINUE
500	IF(PLT)CALL PLOT(0,0,3)
	IF(PLT.EQ.0)CALL DPYOUT(1)
	RETURN
1001 	FORMAT(A1)
	END