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! $Id: x12f.f90,v 1.2 2006/05/24 01:11:11 airwin Exp $
! Demonstration program for PLplot: Bar chart example.
!
! Copyright (C) 2004 Alan W. Irwin
!
! This file is part of PLplot.
!
! PLplot is free software; you can redistribute it and/or modify
! it under the terms of the GNU General Library Public License as
! published by the Free Software Foundation; either version 2 of the
! License, or (at your option) any later version.
!
! PLplot is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU Library General Public License for more details.
!
! You should have received a copy of the GNU Library General Public
! License along with PLplot; if not, write to the Free Software
! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
use plplot
implicit none
character*20 string
integer i
real(kind=plflt) y0(10)
! Process command-line arguments
call plparseopts(PL_PARSE_FULL)
call plinit()
call pladv(0)
call plvsta
call plwind( 1980._plflt, 1990._plflt, 0._plflt, 35._plflt )
call plbox( 'bc', 1._plflt, 0, 'bcnv', 10._plflt, 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
do i = 0, 9
call plcol0(i + 1)
call plpsty(0)
call plfbox( 1980._plflt+i, y0(i+1) )
write (string, '(i8)')int(y0(i+1))
call lalign(string)
call plptex( 1980._plflt+i+0.5_plflt, y0(i+1)+1._plflt, &
1._plflt, 0._plflt, 0.5_plflt, string )
write (string, '(i8)')1980+i
call lalign(string)
call plmtex( 'b', 1._plflt, (i+1)*0.1_plflt-0.05_plflt, &
0.5_plflt, string )
enddo
! Don't forget to call PLEND to finish off!
call plend
end
! Suck up leading spaces
subroutine lalign(string)
use plplot
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)
use plplot
implicit none
real(kind=plflt) x0, y0, x(4), y(4)
x(1) = x0
y(1) = 0._plflt
x(2) = x0
y(2) = y0
x(3) = x0+1._plflt
y(3) = y0
x(4) = x0+1._plflt
y(4) = 0._plflt
call plfill(x, y)
call plcol0(1)
call pllsty(1)
call plline(x, y)
end
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