mirror of
git://projects.qi-hardware.com/openwrt-packages.git
synced 2024-11-30 07:59:21 +02:00
79 lines
2.0 KiB
Lua
79 lines
2.0 KiB
Lua
--[[ $Id: x12.lua 9533 2009-02-16 22:18:37Z smekal $
|
|
|
|
Bar chart demo.
|
|
|
|
Copyright (C) 2008 Werner Smekal
|
|
|
|
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
|
|
--]]
|
|
|
|
-- initialise Lua bindings for PLplot examples.
|
|
dofile("plplot_examples.lua")
|
|
|
|
function pl.fbox(x0, y0)
|
|
x = { x0, x0, x0+1,x0+1 }
|
|
y = { 0, y0, y0, 0 }
|
|
|
|
pl.fill(x, y);
|
|
pl.col0(1);
|
|
pl.lsty(1);
|
|
pl.line(x, y);
|
|
end
|
|
|
|
--------------------------------------------------------------------------
|
|
-- main
|
|
--
|
|
-- Does a simple bar chart, using color fill. If color fill is
|
|
-- unavailable, pattern fill is used instead (automatic).
|
|
--------------------------------------------------------------------------
|
|
|
|
y0 = {}
|
|
|
|
pos = { 0, 0.25, 0.5, 0.75, 1 }
|
|
red = { 0, 0.25, 0.5, 1, 1 }
|
|
green = { 1, 0.5, 0.5, 0.5, 1 }
|
|
blue = { 1, 1, 0.5, 0.25, 0 }
|
|
|
|
|
|
-- Parse and process command line arguments
|
|
|
|
pl.parseopts(arg, pl.PL_PARSE_FULL);
|
|
|
|
-- Initialize plplot
|
|
pl.init()
|
|
|
|
pl.adv(0)
|
|
pl.vsta()
|
|
pl.wind(1980, 1990, 0, 35)
|
|
pl.box("bc", 1, 0, "bcnv", 10, 0)
|
|
pl.col0(2)
|
|
pl.lab("Year", "Widget Sales (millions)", "#frPLplot Example 12")
|
|
|
|
y0 = { 5, 15, 12, 24, 28, 30, 20, 8, 12, 3}
|
|
|
|
pl.scmap1l(1, pos, red, green, blue);
|
|
|
|
for i=1, 10 do
|
|
pl.col1((i-1)/9.0);
|
|
pl.psty(0);
|
|
pl.fbox((1980+i-1), y0[i]);
|
|
pl.ptex((1980+i-0.5), (y0[i]+1), 1, 0, 0.5, tostring(y0[i]));
|
|
pl.mtex("b", 1, (i*0.1-0.05), 0.5, tostring(1980+i-1));
|
|
end
|
|
|
|
pl.plend();
|