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subroutine bouncexy(flag,nevprt,t,xd,x,nx,z,nz,tvec,ntvec,
& rpar,nrpar,ipar,nipar,u,nu,y,ny)
c Copyright INRIA
c Scicos block simulator
c ipar(1) = win_num
c ipar(2) = mode : animated =0 fixed=1
c ipar(3:3+nu-1) = colors of balls
c
c rpar(1)=xmin
c rpar(2)=xmax
c rpar(3)=ymin
c rpar(4)=ymax
c
double precision t,xd(*),x(*),z(*),tvec(*),rpar(*),u(*),y(*)
integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
integer nipar,nu,ny
c
c
double precision xmin,xmax,ymin,ymax,rect(4)
integer n,verb,cur,na,v,wid,nax(4),on
character*40 strf,buf
double precision dv
double precision zz(10)
double precision frect(4)
character*(4) logf
character*4 name
data frect / 0.00d0,0.00d0,1.00d0,1.00d0/
data cur/0/,verb/0/
integer kfun
common /curblk/ kfun
c
if(flag.eq.2) then
wid=ipar(1)
N=nu
c
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 erase first point
if(ipar(2).eq.0) then
call dr1('xfarcs'//char(0),'v'//char(0),v,ipar(3),N,v,v,
$ v,z(1),dv,dv,dv);
endif
c draw new point
do i=1,nu
z(6*(i-1)+1)=u(i)-z(6*(i-1)+3)/2
z(6*(i-1)+2)=y(i)+z(6*(i-1)+4)/2
enddo
call dr1('xfarcs'//char(0),'v'//char(0),v,ipar(3),N,v,v,
$ v,z(1),dv,dv,dv);
call dr1('xset'//char(0),'wshow'//char(0),v,v,v,v,v,v,dv,dv,
$ dv,dv)
elseif(flag.eq.4) then
wid=ipar(1)
N=nu
xmin=rpar(1)
xmax=rpar(2)
ymin=rpar(3)
ymax=rpar(4)
nax(1)=2
nax(2)=10
nax(3)=2
nax(4)=10
call sciwin()
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),'X11'//char(0),v,v,v,v,v,v,
$ dv,dv,dv,dv)
on=1
call dr1('xset'//char(0),'pixmap'//char(0),on,v,v,v,v,v,dv,
$ dv,dv,dv)
rect(1)=xmin
rect(2)=ymin
rect(3)=xmax
rect(4)=ymax
call dr1('xset'//char(0),'use color'//char(0),1,0,0,
& 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'
strf='030'//char(0)
call dr1('xset'//char(0),'thickness'//char(0),1,v,
$ v,v,v,v,dv,dv,dv,dv)
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)
call dr1('xset'//char(0),'wshow'//char(0),v,v,v,v,v,v,dv,dv,
$ dv,dv)
zz(1)=xmin
zz(2)=xmin
zz(3)=xmax
zz(4)=xmax
zz(5)=xmin
zz(6)=ymax
zz(7)=ymin
zz(8)=ymin
zz(9)=ymax
zz(10)=ymax
call dr1('xpolys'//char(0),'v'//char(0),v,v,1,
& 1,5,v,zz(1),zz(6),dv,dv)
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
if(ipar(2).eq.0) then
call dr1('xset'//char(0),'alufunction'//char(0),6,v,v,v,
$ v,v,dv,dv,dv,dv)
endif
call sxevents()
c first point drawing
if(ipar(2).eq.0) then
call dr1('xfarcs'//char(0),'v'//char(0),v,ipar(3),N,v,v,
$ v,z(1),dv,dv,dv);
endif
endif
end
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