/usr/share/doc/libplplot11/examples/f77/x12f.f is in libplplot-dev 5.9.9-2ubuntu2.
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c Demonstration program for PLplot: Bar chart example.
c
c Copyright (C) 2004 Alan W. Irwin
c
c This file is part of PLplot.
c
c PLplot is free software; you can redistribute it and/or modify
c it under the terms of the GNU Library General Public License as
c published by the Free Software Foundation; either version 2 of the
c License, or (at your option) any later version.
c
c PLplot is distributed in the hope that it will be useful,
c but WITHOUT ANY WARRANTY; without even the implied warranty of
c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
c GNU Library General Public License for more details.
c
c You should have received a copy of the GNU Library General Public
c License along with PLplot; if not, write to the Free Software
c Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
implicit none
character*20 string
integer i
real*8 y0(10)
real*8 pos(5), rcoord(5), gcoord(5), bcoord(5)
integer rev(5)
include 'plplot_parameters.h'
data pos /0.0d0, 0.25d0, 0.5d0, 0.75d0, 1.0d0/
data rcoord /0.0d0, 0.25d0, 0.5d0, 1.0d0, 1.0d0/
data gcoord /1.0d0, 0.5d0, 0.5d0, 0.5d0, 1.0d0/
data bcoord /1.0d0, 1.0d0, 0.5d0, 0.25d0, 0.0d0/
data rev /0, 0, 0, 0, 0/
c Process command-line arguments
call plparseopts(PL_PARSE_FULL)
call plinit()
call pladv(0)
call plvsta
call plwind( 1980.d0, 1990.d0, 0.d0, 35.d0 )
call plbox( 'bc', 1.d0, 0, 'bcnv', 10.d0, 0 )
call plcol0(2)
call pllab( 'Year', 'Widget Sales (millions)',
& '#frPLplot Example 12' )
y0(1) = 5
y0(2) = 15
y0(3) = 12
y0(4) = 24
y0(5) = 28
y0(6) = 30
y0(7) = 20
y0(8) = 8
y0(9) = 12
y0(10) = 3
call plscmap1l(1,5,pos,rcoord,gcoord,bcoord,rev)
do i = 0, 9
c call plcol0(i + 1)
call plcol1(dble(i)/9.0d0)
call plpsty(0)
call plfbox( dble (1980.d0+i), y0(i+1) )
write (string, '(i8)')int(y0(i+1))
call lalign(string)
call plptex( dble (1980.d0+i+0.5d0), y0(i+1)+1.d0,
& 1.d0, 0.d0, 0.5d0, string )
write (string, '(i8)')1980+i
call lalign(string)
call plmtex( 'b', 1.d0, dble ((i+1)*0.1d0-0.05d0),
& 0.5d0, string )
enddo
c Don't forget to call PLEND to finish off!
call plend
end
c Suck up leading spaces
subroutine lalign(string)
implicit none
integer i, j, k, max, len
character*(*) string
max = len(string)
do i = 1, max
if (string(i:i) .ne. ' ') then
if (i .eq. 1) return
k = 1
do j = i, max
string(k:k) = string(j:j)
k = k + 1
enddo
do j = k, max
string(j:j) = ' '
enddo
return
endif
enddo
end
subroutine plfbox(x0, y0)
implicit none
real*8 x0, y0, x(4), y(4)
x(1) = x0
y(1) = 0.d0
x(2) = x0
y(2) = y0
x(3) = x0+1.d0
y(3) = y0
x(4) = x0+1.d0
y(4) = 0.d0
call plfill( 4, x, y )
call plcol0(1)
call pllsty(1)
call plline( 4, x, y )
end
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