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openwrt-packages/nanonote-example-files/files/Examples/lua-plplot-examples/x23.lua
Xiangfu Liu 15513ea8a1 mv lus-plplot to Examples folder 
add a symblic link to Qt examples
2011-01-21 23:04:01 +08:00

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--[[ $Id: x23.lua 9533 2009-02-16 22:18:37Z smekal $
Displays Greek letters and mathematically interesting Unicode ranges
Copyright (C) 2009 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")
----------------------------------------------------------------------------
-- main
--
-- Displays Greek letters and mathematically interesting Unicode ranges
----------------------------------------------------------------------------
Greek = {
"#gA","#gB","#gG","#gD","#gE","#gZ","#gY","#gH","#gI","#gK","#gL","#gM",
"#gN","#gC","#gO","#gP","#gR","#gS","#gT","#gU","#gF","#gX","#gQ","#gW",
"#ga","#gb","#gg","#gd","#ge","#gz","#gy","#gh","#gi","#gk","#gl","#gm",
"#gn","#gc","#go","#gp","#gr","#gs","#gt","#gu","#gf","#gx","#gq","#gw"
}
Type1 = {
32, 33, 35, 37, 38,
40, 41, 43, 44, 46,
47, 48, 49, 50, 51,
52, 53, 54, 55, 56,
57, 58, 59, 60, 61,
62, 63, 91, 93, 95,
123, 124, 125, 169, 172,
174, 176, 177, 215, 247,
402, 913, 914, 915, 916,
917, 918, 919, 920, 921,
922, 923, 924, 925, 926,
927, 928, 929, 931, 932,
933, 934, 935, 936, 937,
945, 946, 947, 948, 949,
950, 951, 952, 953, 954,
955, 956, 957, 958, 959,
960, 961, 962, 963, 964,
965, 966, 967, 968, 969,
977, 978, 981, 982, 8226,
8230, 8242, 8243, 8254, 8260,
8465, 8472, 8476, 8482, 8486,
8501, 8592, 8593, 8594, 8595,
8596, 8629, 8656, 8657, 8658,
8659, 8660, 8704, 8706, 8707,
8709, 8710, 8711, 8712, 8713,
8715, 8719, 8721, 8722, 8725,
8727, 8730, 8733, 8734, 8736,
8743, 8744, 8745, 8746, 8747,
8756, 8764, 8773, 8776, 8800,
8801, 8804, 8805, 8834, 8835,
8836, 8838, 8839, 8853, 8855,
8869, 8901, 8992, 8993, 9001,
9002, 9674, 9824, 9827, 9829,
9830
}
title = {
"#<0x10>PLplot Example 23 - Greek Letters",
"#<0x10>PLplot Example 23 - Type 1 Symbol Font Glyphs by Unicode (a)",
"#<0x10>PLplot Example 23 - Type 1 Symbol Font Glyphs by Unicode (b)",
"#<0x10>PLplot Example 23 - Type 1 Symbol Font Glyphs by Unicode (c)",
"#<0x10>PLplot Example 23 - Number Forms Unicode Block",
"#<0x10>PLplot Example 23 - Arrows Unicode Block (a)",
"#<0x10>PLplot Example 23 - Arrows Unicode Block (b)",
"#<0x10>PLplot Example 23 - Mathematical Operators Unicode Block (a)",
"#<0x10>PLplot Example 23 - Mathematical Operators Unicode Block (b)",
"#<0x10>PLplot Example 23 - Mathematical Operators Unicode Block (c)",
"#<0x10>PLplot Example 23 - Mathematical Operators Unicode Block (d)"
}
lo = {
0,
0,
64,
128,
8531,
8592,
8656,
8704,
8768,
8832,
8896
}
hi = {
48,
64,
128,
166,
8580,
8656,
8704,
8768,
8832,
8896,
8960
}
nxcells = {
12,
8,
8,
8,
8,
8,
8,
8,
8,
8,
8
}
nycells = {
8,
8,
8,
8,
8,
8,
8,
8,
8,
8,
8
}
-- non-zero values Must be consistent with nxcells and nycells.
offset = {
0,
0,
64,
128,
0,
0,
0,
0,
0,
0,
0
}
-- 30 possible FCI values.
FCI_COMBINATIONS = 30
fci = {
2147483648,
2147483649,
2147483650,
2147483651,
2147483652,
2147483664,
2147483665,
2147483666,
2147483667,
2147483668,
2147483680,
2147483681,
2147483682,
2147483683,
2147483684,
2147483904,
2147483905,
2147483906,
2147483907,
2147483908,
2147483920,
2147483921,
2147483922,
2147483923,
2147483924,
2147483936,
2147483937,
2147483938,
2147483939,
2147483940
}
family = {
"sans-serif",
"serif",
"monospace",
"script",
"symbol"
}
style = {
"upright",
"italic",
"oblique"
}
weight = {
"medium",
"bold"
}
-- Parse and process command line arguments
pl.parseopts(arg, pl.PL_PARSE_FULL)
-- Initialize plplot
pl.init()
for page=1, 11 do
pl.adv(0)
-- Set up viewport and window
pl.vpor(0.02, 0.98, 0.02, 0.90)
pl.wind(0, 1, 0, 1)
xmin, xmax, ymin, ymax = pl.gspa()
pl.schr(0, 0.8)
ycharacter_scale = (1-0)/(ymax-ymin)
-- Factor should be 0.5, but heuristically it turns out to be larger.
chardef, charht = pl.gchr()
yoffset = charht*ycharacter_scale
-- Draw the grid using plbox
pl.col0(2)
deltax = 1.0/nxcells[page]
deltay = 1.0/nycells[page]
pl.box("bcg", deltax, 0, "bcg", deltay, 0)
pl.col0(15)
length=hi[page]-lo[page]
slice = 1
for j=nycells[page]-1, -1, -1 do
y = (0.5+j)*deltay
for i=1, nxcells[page] do
x = (i-0.5)*deltax
if slice<=length then
if page==1 then
cmdString = "#" .. Greek[slice]
elseif (page>=2) and (page<=4) then
cmdString = string.format("##[0x%.4x]", Type1[offset[page]+slice])
elseif page>4 then
cmdString = string.format("##[0x%.4x]", lo[page]+slice-1)
end
pl.ptex(x, y+yoffset, 1, 0, 0.5, string.sub(cmdString,2))
pl.ptex(x, y-yoffset, 1, 0, 0.5, cmdString)
end
slice = slice + 1
end
end
pl.schr(0, 1)
-- Page title
pl.mtex("t", 1.5, 0.5, 0.5, title[page])
end
-- Demonstrate methods of getting the current fonts
fci_old = pl.gfci()
ifamily, istyle, iweight = pl.gfont()
print(string.format("For example 23 prior to page 12 the FCI is 0x%x", fci_old))
print(string.format("For example 23 prior to page 12 the font family, style and weight are %s %s %s",
family[ifamily+1], style[istyle+1], weight[iweight+1]))
for page=12, 16 do
dy = 0.030
pl.adv(0)
pl.vpor(0.02, 0.98, 0.02, 0.90)
pl.wind(0, 1, 0, 1)
pl.sfci(0)
if page==12 then
pl.mtex("t", 1.5, 0.5, 0.5, "#<0x10>PLplot Example 23 - Set Font with plsfci")
elseif page==13 then
pl.mtex("t", 1.5, 0.5, 0.5, "#<0x10>PLplot Example 23 - Set Font with plsfont")
elseif page==14 then
pl.mtex("t", 1.5, 0.5, 0.5, "#<0x10>PLplot Example 23 - Set Font with ##<0x8nnnnnnn> construct")
elseif page==15 then
pl.mtex("t", 1.5, 0.5, 0.5, "#<0x10>PLplot Example 23 - Set Font with ##<0xmn> constructs")
elseif page==16 then
pl.mtex("t", 1.5, 0.5, 0.5, "#<0x10>PLplot Example 23 - Set Font with ##<FCI COMMAND STRING/> constructs")
end
pl.schr(0, 0.75)
for i=1, FCI_COMBINATIONS do
family_index = math.mod(i-1, 5)+1
style_index = math.mod(math.floor((i-1)/5), 3)+1
weight_index = math.mod(math.floor((i-1)/5/3), 2)+1
if page==12 then
pl.sfci(fci[i])
str = string.format("Page 12, %s, %s, %s: The quick brown fox jumps over the lazy dog",
family[family_index], style[style_index], weight[weight_index])
elseif page==13 then
pl.sfont(family_index-1, style_index-1, weight_index-1)
str = string.format("Page 13, %s, %s, %s: The quick brown fox jumps over the lazy dog",
family[family_index], style[style_index], weight[weight_index])
elseif page==14 then
str = string.format("Page 14, %s, %s, %s: #<0x%x>The quick brown fox jumps over the lazy dog",
family[family_index], style[style_index], weight[weight_index], fci[i])
elseif page==15 then
str = string.format("Page 15, %s, %s, %s: #<0x%1x0>#<0x%1x1>#<0x%1x2>The quick brown fox jumps over the lazy dog",
family[family_index], style[style_index], weight[weight_index],
family_index-1, style_index-1, weight_index-1)
elseif page==16 then
str = string.format("Page 16, %s, %s, %s: #<%s/>#<%s/>#<%s/>The quick brown fox jumps over the lazy dog",
family[family_index], style[style_index], weight[weight_index],
family[family_index], style[style_index], weight[weight_index])
end
pl.ptex(0, 1-(i-0.5)*dy, 1, 0, 0, str)
end
pl.schr(0, 1)
end
-- Restore defaults
pl.col0(1)
pl.plend()
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