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! $Id: x02f.f90 11680 2011-03-27 17:57:51Z airwin $
! Demonstrates multiple windows and color map 0
!
! Copyright (C) 2004 Alan W. Irwin
! Copyright (C) 2005 Andrew Ross
!
! This file is part of PLplot.
!
! PLplot is free software; you can redistribute it and/or modify
! it under the terms of the GNU Library General 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
! Process command-line arguments
call plparseopts(PL_PARSE_FULL)
! Initialize plplot
call plinit()
! Run demos
call demo1
call demo2
call plend
end
!--------------------------------------------------------------------------
! demo1
!
! Demonstrates multiple windows and default color map 0 palette.
!--------------------------------------------------------------------------
subroutine demo1
use plplot
implicit none
call plbop
! Divide screen into 16 regions
call plssub(4,4)
call draw_windows(16, 0)
call pleop
end
!--------------------------------------------------------------------------
! demo2
!
! Demonstrates multiple windows, user-modified color map 0 palette,
! and HLS -> RGB translation.
!--------------------------------------------------------------------------
subroutine demo2
use plplot
implicit none
integer r(116), g(116), b(116)
real(kind=plflt) lmin, lmax
parameter (lmin = 0.15_plflt, lmax = 0.85_plflt)
integer i
real(kind=plflt) h, l, s, r1, g1, b1
call plbop
! Divide screen into 100 regions
call plssub(10,10)
do i=0,99
! Bounds on HLS, from plhlsrgb() commentary --
! hue [0., 360.] degrees
! lightness [0., 1.] magnitude
! saturation [0., 1.] magnitude
! Vary hue uniformly from left to right
h = (360._plflt/10._plflt)*mod(i,10)
! Vary lightness uniformly from top to bottom, between min and max
l = lmin + (lmax - lmin) * (i / 10) / 9._plflt
! Use_ max saturation
s = 1._plflt
call plhlsrgb(h, l, s, r1, g1, b1)
r(i+17) = r1*255.001
g(i+17) = g1*255.001
b(i+17) = b1*255.001
enddo
do i=1,16
call plgcol0(i-1,r(i),g(i),b(i))
enddo
call plscmap0(r, g, b)
call draw_windows(100, 16)
call pleop
end
!--------------------------------------------------------------------------
! draw_windows
!
! Draws a set of numbered boxes with colors according to cmap0 entry.
!--------------------------------------------------------------------------
subroutine draw_windows( nw, cmap0_offset )
use plplot
implicit none
integer nw, cmap0_offset
integer i,j
real(kind=plflt) vmin, vmax
character*3 text
call plschr(0.0_plflt, 3.5_plflt)
call plfont(4)
do i=0,nw-1
call plcol0(i+cmap0_offset)
write (text,'(i3)') i
if (i .lt. 10) then
text=text(3:3)
elseif (i.lt.100) then
text=text(2:3)
endif
call pladv(0)
vmin = 0.1_plflt
vmax = 0.9_plflt
do j=1,3
call plwid(j)
call plvpor(vmin,vmax,vmin,vmax)
call plwind(0.0_plflt, 1.0_plflt, 0.0_plflt, 1.0_plflt)
call plbox('bc', 0.0_plflt, 0, 'bc', 0.0_plflt, 0)
vmin = vmin + 0.1_plflt
vmax = vmax - 0.1_plflt
enddo
call plwid(1)
call plptex(0.5_plflt, 0.5_plflt, 1.0_plflt, 0.0_plflt, 0.5_plflt, text)
enddo
end
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