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subroutine scope(flag,nevprt,t,xd,x,nx,z,nz,tvec,ntvec,
& rpar,nrpar,ipar,nipar,u,nu)
c Copyright INRIA
c Scicos block simulator
c ipar(1) = win_num
c ipar(2) = 0/1 color flag
c ipar(3) = buffer size
c ipar(4:11) = line type for ith curve
c
c ipar(12:13) : window position
c ipar(14:15) : window dimension
c ipar(16) : acceptance of inherited events
c
c rpar(1)=dt
c rpar(2)=ymin
c rpar(3)=ymax
c rpar(4)=periode
c
double precision t,xd(*),x(*),z(*),tvec(*),rpar(*),u(*)
integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
integer nipar,nu
c
c
double precision dt,ymin,ymax,per,rect(4),tsave
integer i,n,verb,cur,na,v,wid,nax(4)
character*40 strf,buf
double precision dv
double precision frect(4)
c character*(4) logf
logical herited
integer kfun
common /curblk/ kfun
data frect / 0.00d0,0.00d0,1.00d0,1.00d0/
data cur/0/,verb/0/
c
if(nipar.lt.16) then
c compatibility
herited=.true.
iwp=1+nipar-4
iwd=1+nipar-2
else
herited=ipar(16).ne.0
iwp=1+nipar-5
iwd=1+nipar-3
endif
c
if(flag.eq.2) then
dt=rpar(1)
ymin=rpar(2)
ymax=rpar(3)
per=rpar(4)
wid=ipar(1)
N=ipar(3)
K=int(z(1))
if(K.gt.0) then
n1=int(z(1+K)/per)
if(z(1+K).lt.0.0d0) n1=n1-1
else
n1=0
endif
c
tsave=t
if(dt.gt.0.0d0) t=z(1+K)+dt
c
n2=int(t/per)
if(t.lt.0.0d0) n2=n2-1
c
c add new point to the buffer
K=K+1
z(1+K)=t
do 01 i=1,nu
z(1+N+(i-1)*N+K)=u(i)
01 continue
z(1)=K
if(n1.eq.n2.and.K.lt.N) then
t=tsave
return
endif
c
c plot 1:K points of the buffer
call dr1('xget'//char(0),'window'//char(0),verb,cur,na,v,v,v,
$ dv,dv,dv,dv)
if(cur.ne.wid) then
call dr1('xset'//char(0),'window'//char(0),wid,v,v,v,v,v,
$ dv,dv,dv,dv)
endif
call dr1('xsetdr'//char(0),'Rec'//char(0),v,v,v,v,v,v,
$ dv,dv,dv,dv)
c call dr1('xset'//char(0),'use color'//char(0),ipar(2),0,0,
c & 0,0,v,dv,dv,dv,dv)
if(K.gt.0) then
call scicosclip(1)
do 10 i=1,nu
c if(ipar(3+i).ge.0.or.flag.eq.1) then
call dr1('xpolys'//char(0),'v'//char(0),v,v,
& ipar(3+i),1,K,v,z(2),z(2+N+(i-1)*N),dv,dv)
c endif
10 continue
call scicosclip(0)
endif
c shift buffer left
z(2)=z(1+K)
do 15 i=1,nu
z(1+N+(i-1)*N+1)=z(1+N+(i-1)*N+K)
15 continue
z(1)=1.0d0
if(n1.ne.n2) then
c clear window
nax(1)=2
nax(2)=10
nax(3)=2
nax(4)=10
call dr1('xclear'//char(0),'v'//char(0),v,v,v,v,v,v,
$ dv,dv,dv,dv)
call dr1('xset'//char(0),'use color'//char(0),ipar(2),0,0,
& 0,0,v,dv,dv,dv,dv)
call dr('xstart'//char(0),'v'//char(0),wid,v,v,v,v,v,
$ dv,dv,dv,dv)
buf='t@ @input and output'
strf='011'//char(0)
rect(1)=per*(1+n1)
rect(2)=ymin
rect(3)=per*(2+n1)
rect(4)=ymax
call dr1('xset'//char(0),'dashes'//char(0),0,0,0,
& 0,0,v,dv,dv,dv,dv)
c call dr1('xset'//char(0),'clipping-p'//char(0),-1.0d0,
c & -1.0d0,200000.0d0,200000.0d0,v,dv,dv,dv,dv)
call plot2d(rect(1),rect(2),1,1,-1,strf,buf,rect,nax,4,21)
c call dr('xset'//char(0),'clipping'//char(0),rect(1),rect(2),
c & rect(3),rect(4),v,v,dv,dv,dv,dv)
endif
t=tsave
c
elseif(flag.eq.4) then
wid=ipar(1)
N=ipar(3)
ymin=rpar(2)
ymax=rpar(3)
per=rpar(4)
nax(1)=2
nax(2)=10
nax(3)=2
nax(4)=10
n1=int(t)/per
if(t.le.0.0d0) n1=n1-1
call sciwin()
call dr1('xset'//char(0),'window'//char(0),wid,v,v,v,v,v,
$ dv,dv,dv,dv)
call dr1('xsetdr'//char(0),'Rec'//char(0),v,v,v,v,v,v,
$ dv,dv,dv,dv)
if(ipar(iwp).ge.0) then
call dr1('xset'//char(0),'wpos'//char(0),ipar(iwp),
$ ipar(iwp+1),v,v,v,v,dv,dv,dv,dv)
endif
if(ipar(iwd).ge.0) then
call dr1('xset'//char(0),'wdim'//char(0),ipar(iwd),
$ ipar(iwd+1),v,v,v,v,dv,dv,dv,dv)
c to force dimensions update
call dr1('xset'//char(0),'window'//char(0),wid,v,v,v,v,v,
$ dv,dv,dv,dv)
endif
rect(1)=per*(1+n1)
rect(2)=ymin
rect(3)=per*(2+n1)
rect(4)=ymax
call setscale2d(frect,rect,'nn'//char(0))
call dr1('xset'//char(0),'use color'//char(0),ipar(2),0,0,
& 0,0,v,dv,dv,dv,dv)
call dr1('xset'//char(0),'alufunction'//char(0),3,0,0,
& 0,0,v,dv,dv,dv,dv)
call dr1('xclear'//char(0),'v'//char(0),v,v,v,v,v,v,
$ dv,dv,dv,dv)
call dr('xstart'//char(0),'v'//char(0),wid,v,v,v,v,v,
$ dv,dv,dv,dv)
buf='t@ @input and output'//char(0)
strf='011'//char(0)
call dr1('xset'//char(0),'dashes'//char(0),0,0,0,
& 0,0,v,dv,dv,dv,dv)
call plot2d(rect(1),rect(2),1,1,-1,strf,buf,rect,nax,4,21)
call scicosclip(1)
nxname=40
call getlabel(kfun,buf,nxname)
if(nxname.gt.39) nxname=39
buf(nxname+1:nxname+1)=char(0)
if ((nxname.eq.1.and.buf(1:1).eq.' ').or.(nxname.eq.0)) then
else
call dr('xname'//char(0),buf,v,v,v,v,v,v,dv,dv,dv,dv)
endif
z(1)=0.0d0
z(2)=t
call dset(nu*N,0.0d0,z(3),1)
elseif(flag.eq.5) then
wid=ipar(1)
N=ipar(3)
K=int(z(1))
if(K.le.1) return
call dr1('xget'//char(0),'window'//char(0),verb,cur,na,v,v,v,
$ dv,dv,dv,dv)
if(cur.ne.wid) then
call dr1('xset'//char(0),'window'//char(0),wid,v,v,v,v,v,
$ dv,dv,dv,dv)
endif
c call dr1('xset'//char(0),'use color'//char(0),ipar(2),0,0,
c & 0,0,v,dv,dv,dv,dv)
call scicosclip(1)
do 30 i=1,nu
call dr1('xpolys'//char(0),'v'//char(0),v,v,ipar(3+i),
& 1,K,v,z(2),z(2+N+(i-1)*N),dv,dv)
30 continue
call scicosclip(0)
endif
end
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