--[[ $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 ## 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()