35 lines
778 B
Fortran
35 lines
778 B
Fortran
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subroutine plotsave(swide,nw,nh,irow)
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real, dimension(:,:), allocatable :: sw
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real swide(0:nw-1)
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data nw0/-1/,nh0/-1/
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save nw0,nh0,sw
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if(irow.eq.-99) then
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if(allocated(sw)) deallocate(sw)
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go to 900
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endif
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if(nw.ne.nw0 .or. nh.ne.nh0 .or. (.not.allocated(sw))) then
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if(allocated(sw)) deallocate(sw)
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! if(nw0.ne.-1) deallocate(sw)
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allocate(sw(0:nw-1,0:nh-1))
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sw=0.
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nw0=nw
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nh0=nh
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endif
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df=12000.0/16384
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if(irow.lt.0) then
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! Push a new row of data into sw
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do j=nh-1,1,-1
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sw(0:nw-1,j)=sw(0:nw-1,j-1)
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enddo
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sw(0:nw-1,0)=swide
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else
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! Return the saved "irow" as swide(), for a waterfall replot.
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swide=sw(0:nw-1,irow)
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endif
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900 return
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end subroutine plotsave
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