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! $Id: x14f.f90,v 1.5 2006/05/19 23:28:43 airwin Exp $
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! Demo of multiple stream/window capability
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! Copyright (C) 2004 Arjen Markus
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! Copyright (C) 2004 Alan W. Irwin
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! This file is part of PLplot.
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! PLplot is free software; you can redistribute it and/or modify
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! it under the terms of the GNU General Library Public License as
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! published by the Free Software Foundation; either version 2 of the
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! License, or (at your option) any later version.
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! PLplot is distributed in the hope that it will be useful,
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! but WITHOUT ANY WARRANTY; without even the implied warranty of
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! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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! GNU Library General Public License for more details.
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! You should have received a copy of the GNU Library General Public
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! License along with PLplot; if not, write to the Free Software
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! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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! Plots several simple functions from other example programs.
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! This version sends the output of the first 4 plots (one page) to two
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! independent streams.
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integer xleng0 , yleng0 , xoff0 , yoff0
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integer xleng1 , yleng1 , xoff1 , yoff1
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character*15 geometry_master
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character*15 geometry_slave
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real(kind=plflt) x(101), y(101)
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real(kind=plflt) xs(6), ys(6)
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real(kind=plflt) xscale, yscale, xoff, yoff
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common /plotdat/ x, y, xs, ys, xscale, yscale, xoff, yoff
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geometry_master = '500x410+100+200'
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geometry_slave = '500x410+650+200'
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! Process command-line arguments
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call plparseopts(PL_PARSE_FULL)
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write(*,*) 'Demo of multiple output streams via the ', &
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trim(driver), ' driver.'
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write(*,*) 'Running with the second stream as slave ', &
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call plsetopt( 'geometry', geometry_master)
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! Turn off pause to make this a slave (must follow master)
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call plsetopt( 'geometry', geometry_slave)
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call plspause(.false.)
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! Set up the data & plot
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! Set up the data & plot
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! Set up the data & plot
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call plsyax(digmax, 0)
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! Set up the data & plot
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yscale = 0.0014_plflt
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call plsyax(digmax, 0)
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! The pleop() ensures the eop indicator gets lit.
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! Back to master to wait for user to advance
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! Call plend to finish off.
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!======================================================================
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real(kind=plflt) x(101), y(101)
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real(kind=plflt) xs(6), ys(6)
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real(kind=plflt) xscale, yscale, xoff, yoff, &
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xmin, xmax, ymin, ymax
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common /plotdat/ x, y, xs, ys, xscale, yscale, xoff, yoff
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x(i) = xoff + xscale * dble(i)/60.0_plflt
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y(i) = yoff + yscale * x(i)**2
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xs(i) = x((i-1)*10+4)
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ys(i) = y((i-1)*10+4)
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! Set up the viewport and window using PLENV. The range in X is
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! 0.0 to 6.0, and the range in Y is 0.0 to 30.0. The axes are
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! scaled separately (just = 0), and we just draw a labelled
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call plenv( xmin, xmax, ymin, ymax, 0, 0 )
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call pllab( '(x)', '(y)', '#frPLplot Example 1 - y=x#u2' )
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! Plot the data points
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call plpoin(xs, ys, 9)
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! Draw the line through the data
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call plline(x(:60), y(:60))
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!======================================================================
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real(kind=plflt) x(101), y(101)
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real(kind=plflt) xs(6), ys(6)
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real(kind=plflt) xscale, yscale, xoff, yoff
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common /plotdat/ x, y, xs, ys, xscale, yscale, xoff, yoff
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!======================================================================
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! Set up the viewport and window using PLENV. The range in X is
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! -2.0 to 10.0, and the range in Y is -0.4 to 2.0. The axes are
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! scaled separately (just = 0), and we draw a box with axes
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call plenv(-2.0_plflt, 10.0_plflt, -0.4_plflt, 1.2_plflt, 0, 1 )
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call pllab( '(x)', 'sin(x)/x', &
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'#frPLplot Example 1 - Sinc Function' )
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x(i) = (i-20.0_plflt)/6.0_plflt
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if (x(i) .ne. 0.0_plflt) y(i) = sin(x(i)) / x(i)
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call plline(x(:100), y(:100))
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!======================================================================
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! For the final graph we wish to override the default tick intervals,
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! and so do not use PLENV
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use plplot, PI => PL_PI
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real(kind=plflt) x(101), y(101)
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real(kind=plflt) xs(6), ys(6)
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real(kind=plflt) xscale, yscale, xoff, yoff
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common /plotdat/ x, y, xs, ys, xscale, yscale, xoff, yoff
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! Use standard viewport, and define X range from 0 to 360 degrees,
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! Y range from -1.2 to 1.2.
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call plwind( 0.0_plflt, 360.0_plflt, -1.2_plflt, 1.2_plflt )
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! Draw a box with ticks spaced 60 degrees apart in X, and 0.2 in Y.
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call plbox( 'bcnst', 60.0_plflt, 2, 'bcnstv', 0.2_plflt, 2 )
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! Superimpose a dashed line grid, with 1.5 mm marks and spaces. With
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! only a single mark and space element, we do not need arrays
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call plstyl( 1, 1500, 1500 )
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call plbox( 'g', 30.0_plflt, 0, 'g', 0.2_plflt, 0 )
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call plstyl( 0, 0, 0 )
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call pllab( 'Angle (degrees)', 'sine', &
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'#frPLplot Example 1 - Sine function' )
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x(i) = 3.6_plflt * (i-1)
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y(i) = sin( x(i) * PI/180.0_plflt )
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!======================================================================
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use plplot, PI => PL_PI
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real(kind=plflt) x0(0:360), y0(0:360)
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real(kind=plflt) x(0:360), y(0:360), dtr, theta, dx, dy, r
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x0(i) = cos(dtr * dble (i))
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y0(i) = sin(dtr * dble (i))
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! Set up viewport and window, but do not draw box
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call plenv(-1.3_plflt, 1.3_plflt, -1.3_plflt, 1.3_plflt, 1, -2)
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x(j) = 0.1_plflt*i*x0(j)
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y(j) = 0.1_plflt*i*y0(j)
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! Draw circles for polar grid
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! Draw radial spokes for polar grid
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call pljoin(0.0_plflt, 0.0_plflt, dx, dy)
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write (text,'(i3)') nint(theta)
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! Write labels for angle
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text = text(nsp(text):)
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! Slightly off zero to avoid floating point logic flips at
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if (dx.ge.-0.00001_plflt) then
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call plptex(dx, dy, dx, dy, -0.15_plflt, text)
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call plptex(dx, dy, -dx, -dy, 1.15_plflt, text)
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r = sin(dtr*dble (5*i))
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call plmtex('t', 2.0_plflt, 0.5_plflt, 0.5_plflt, &
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'#frPLplot Example 3 - r(#gh)=sin 5#gh')
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! Flush the plot at end
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!======================================================================
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integer function nsp(text)
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! Find first non-space character
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do while(text(nsp:nsp).eq.' ' .and. nsp.lt.l)
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!======================================================================
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use plplot, PI => PL_PI
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integer i, j, nptsx, nptsy, xdim, ydim
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! xdim and ydim are the absolute static dimensions.
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! nptsx, and nptsy are the (potentially dynamic) defined area of the 2D
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! arrays that is actually used.
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parameter (xdim=99, ydim=100, nptsx=35,nptsy=46)
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real(kind=plflt) z(xdim, ydim), w(xdim, ydim), clevel(11), &
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xg1(xdim), yg1(ydim), &
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xg2(xdim, ydim), yg2(xdim, ydim)
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real(kind=plflt) xx, yy, argx, argy, distort
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real(kind=plflt) tr(6)
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data clevel /-1._plflt, -0.8_plflt, -0.6_plflt, -0.4_plflt, &
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0._plflt, 0.2_plflt, 0.4_plflt, 0.6_plflt ,0.8_plflt, 1._plflt/
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tr(1) = 2._plflt/dble(nptsx-1)
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tr(5) = 2._plflt/dble(nptsy-1)
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! Calculate the data matrices.
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xx = dble(i-1-(nptsx/2))/dble (nptsx/2)
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yy = dble(j-1-(nptsy/2))/dble (nptsy/2) - 1.0_plflt
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z(i,j) = xx*xx - yy*yy
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w(i,j) = 2._plflt*xx*yy
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! Build the 1-d coord arrays.
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xx = -1._plflt + dble(i-1)*2._plflt/dble(nptsx-1)
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xg1(i) = xx + distort*cos(0.5_plflt*PI*xx)
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yy = -1._plflt + dble(j-1)*2._plflt/dble(nptsy-1)
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yg1(j) = yy - distort*cos(0.5_plflt*PI*yy)
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! Build the 2-d coord arrays.
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xx = -1._plflt + dble(i-1)*2._plflt/dble(nptsx-1)
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argx = 0.5_plflt*PI*xx
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yy = -1._plflt + dble(j-1)*2._plflt/dble(nptsy-1)
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argy = 0.5_plflt*PI*yy
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xg2(i,j) = xx + distort*cos(argx)*cos(argy)
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yg2(i,j) = yy - distort*cos(argx)*cos(argy)
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! Plot using identity transform
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call plenv(-1.0_plflt, 1.0_plflt, -1.0_plflt, 1.0_plflt, 0, 0)
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call plcont(z,1,nptsx,1,nptsy,clevel,tr)
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call plstyl(1,1500,1500)
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call plcont(w,1,nptsx,1,nptsy,clevel,tr)
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call plstyl(0,1500,1500)
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call pllab('X Coordinate', 'Y Coordinate', &
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'Streamlines of flow')
added
removed
examples/f95/x14f.f90
