Class: GraphViz::Utils::Colors

Inherits:
Object
  • Object
show all
Defined in:
lib/graphviz/utils/colors.rb

Constant Summary collapse

HEX_FOR_COLOR = 
/[0-9a-fA-F]{2}/
RGBA = 
/^(#{HEX_FOR_COLOR})(#{HEX_FOR_COLOR})(#{HEX_FOR_COLOR})(#{HEX_FOR_COLOR})?$/
COLORS = 
{
   "aliceblue" => "f0f8ff",
   "antiquewhite" => "faebd7",
   "antiquewhite1" => "ffefdb",
   "antiquewhite2" => "eedfcc",
   "antiquewhite3" => "cdc0b0",
   "antiquewhite4" => "8b8378",
   "aquamarine" => "7fffd4",
   "aquamarine1" => "7fffd4",
   "aquamarine2" => "76eec6",
   "aquamarine3" => "66cdaa",
   "aquamarine4" => "458b74",
   "azure" => "f0ffff",
   "azure1" => "f0ffff",
   "azure2" => "e0eeee",
   "azure3" => "c1cdcd",
   "azure4" => "838b8b",
   "beige" => "f5f5dc",
   "bisque" => "ffe4c4",
   "bisque1" => "ffe4c4",
   "bisque2" => "eed5b7",
   "bisque3" => "cdb79e",
   "bisque4" => "8b7d6b",
   "black" => "000000",
   "blanchedalmond" => "ffebcd",
   "blue" => "0000ff",
   "blue1" => "0000ff",
   "blue2" => "0000ee",
   "blue3" => "0000cd",
   "blue4" => "00008b",
   "blueviolet" => "8a2be2",
   "brown" => "a52a2a",
   "brown1" => "ff4040",
   "brown2" => "ee3b3b",
   "brown3" => "cd3333",
   "brown4" => "8b2323",
   "burlywood" => "deb887",
   "burlywood1" => "ffd39b",
   "burlywood2" => "eec591",
   "burlywood3" => "cdaa7d",
   "burlywood4" => "8b7355",
   "cadetblue" => "5f9ea0",
   "cadetblue1" => "98f5ff",
   "cadetblue2" => "8ee5ee",
   "cadetblue3" => "7ac5cd",
   "cadetblue4" => "53868b",
   "chartreuse" => "7fff00",
   "chartreuse1" => "7fff00",
   "chartreuse2" => "76ee00",
   "chartreuse3" => "66cd00",
   "chartreuse4" => "458b00",
   "chocolate" => "d2691e",
   "chocolate1" => "ff7f24",
   "chocolate2" => "ee7621",
   "chocolate3" => "cd661d",
   "chocolate4" => "8b4513",
   "coral" => "ff7f50",
   "coral1" => "ff7256",
   "coral2" => "ee6a50",
   "coral3" => "cd5b45",
   "coral4" => "8b3e2f",
   "cornflowerblue" => "6495ed",
   "cornsilk" => "fff8dc",
   "cornsilk1" => "fff8dc",
   "cornsilk2" => "eee8cd",
   "cornsilk3" => "cdc8b1",
   "cornsilk4" => "8b8878",
   "crimson" => "dc143c",
   "cyan" => "00ffff",
   "cyan1" => "00ffff",
   "cyan2" => "00eeee",
   "cyan3" => "00cdcd",
   "cyan4" => "008b8b",
   "darkgoldenrod" => "b8860b",
   "darkgoldenrod1" => "ffb90f",
   "darkgoldenrod2" => "eead0e",
   "darkgoldenrod3" => "cd950c",
   "darkgoldenrod4" => "8b6508",
   "darkgreen" => "006400",
   "darkkhaki" => "bdb76b",
   "darkolivegreen" => "556b2f",
   "darkolivegreen1" => "caff70",
   "darkolivegreen2" => "bcee68",
   "darkolivegreen3" => "a2cd5a",
   "darkolivegreen4" => "6e8b3d",
   "darkorange" => "ff8c00",
   "darkorange1" => "ff7f00",
   "darkorange2" => "ee7600",
   "darkorange3" => "cd6600",
   "darkorange4" => "8b4500",
   "darkorchid" => "9932cc",
   "darkorchid1" => "bf3eff",
   "darkorchid2" => "b23aee",
   "darkorchid3" => "9a32cd",
   "darkorchid4" => "68228b",
   "darksalmon" => "e9967a",
   "darkseagreen" => "8fbc8f",
   "darkseagreen1" => "c1ffc1",
   "darkseagreen2" => "b4eeb4",
   "darkseagreen3" => "9bcd9b",
   "darkseagreen4" => "698b69",
   "darkslateblue" => "483d8b",
   "darkslategray" => "2f4f4f",
   "darkslategray1" => "97ffff",
   "darkslategray2" => "8deeee",
   "darkslategray3" => "79cdcd",
   "darkslategray4" => "528b8b",
   "darkslategrey" => "2f4f4f",
   "darkturquoise" => "00ced1",
   "darkviolet" => "9400d3",
   "deeppink" => "ff1493",
   "deeppink1" => "ff1493",
   "deeppink2" => "ee1289",
   "deeppink3" => "cd1076",
   "deeppink4" => "8b0a50",
   "deepskyblue" => "00bfff",
   "deepskyblue1" => "00bfff",
   "deepskyblue2" => "00b2ee",
   "deepskyblue3" => "009acd",
   "deepskyblue4" => "00688b",
   "dimgray" => "696969",
   "dimgrey" => "696969",
   "dodgerblue" => "1e90ff",
   "dodgerblue1" => "1e90ff",
   "dodgerblue2" => "1c86ee",
   "dodgerblue3" => "1874cd",
   "dodgerblue4" => "104e8b",
   "firebrick" => "b22222",
   "firebrick1" => "ff3030",
   "firebrick2" => "ee2c2c",
   "firebrick3" => "cd2626",
   "firebrick4" => "8b1a1a",
   "floralwhite" => "fffaf0",
   "forestgreen" => "228b22",
   "gainsboro" => "dcdcdc",
   "ghostwhite" => "f8f8ff",
   "gold" => "ffd700",
   "gold1" => "ffd700",
   "gold2" => "eec900",
   "gold3" => "cdad00",
   "gold4" => "8b7500",
   "goldenrod" => "daa520",
   "goldenrod1" => "ffc125",
   "goldenrod2" => "eeb422",
   "goldenrod3" => "cd9b1d",
   "goldenrod4" => "8b6914",
   "gray" => "808080",
   "gray0" => "000000",
   "gray1" => "030303",
   "gray10" => "1a1a1a",
   "gray100" => "ffffff",
   "gray11" => "1c1c1c",
   "gray12" => "1f1f1f",
   "gray13" => "212121",
   "gray14" => "242424",
   "gray15" => "262626",
   "gray16" => "292929",
   "gray17" => "2b2b2b",
   "gray18" => "2e2e2e",
   "gray19" => "303030",
   "gray2" => "050505",
   "gray20" => "333333",
   "gray21" => "363636",
   "gray22" => "383838",
   "gray23" => "3b3b3b",
   "gray24" => "3d3d3d",
   "gray25" => "404040",
   "gray26" => "424242",
   "gray27" => "454545",
   "gray28" => "474747",
   "gray29" => "4a4a4a",
   "gray3" => "080808",
   "gray30" => "4d4d4d",
   "gray31" => "4f4f4f",
   "gray32" => "525252",
   "gray33" => "545454",
   "gray34" => "575757",
   "gray35" => "595959",
   "gray36" => "5c5c5c",
   "gray37" => "5e5e5e",
   "gray38" => "616161",
   "gray39" => "636363",
   "gray4" => "0a0a0a",
   "gray40" => "666666",
   "gray41" => "696969",
   "gray42" => "6b6b6b",
   "gray43" => "6e6e6e",
   "gray44" => "707070",
   "gray45" => "737373",
   "gray46" => "757575",
   "gray47" => "787878",
   "gray48" => "7a7a7a",
   "gray49" => "7d7d7d",
   "gray5" => "0d0d0d",
   "gray50" => "7f7f7f",
   "gray51" => "828282",
   "gray52" => "858585",
   "gray53" => "878787",
   "gray54" => "8a8a8a",
   "gray55" => "8c8c8c",
   "gray56" => "8f8f8f",
   "gray57" => "919191",
   "gray58" => "949494",
   "gray59" => "969696",
   "gray6" => "0f0f0f",
   "gray60" => "999999",
   "gray61" => "9c9c9c",
   "gray62" => "9e9e9e",
   "gray63" => "a1a1a1",
   "gray64" => "a3a3a3",
   "gray65" => "a6a6a6",
   "gray66" => "a8a8a8",
   "gray67" => "ababab",
   "gray68" => "adadad",
   "gray69" => "b0b0b0",
   "gray7" => "121212",
   "gray70" => "b3b3b3",
   "gray71" => "b5b5b5",
   "gray72" => "b8b8b8",
   "gray73" => "bababa",
   "gray74" => "bdbdbd",
   "gray75" => "bfbfbf",
   "gray76" => "c2c2c2",
   "gray77" => "c4c4c4",
   "gray78" => "c7c7c7",
   "gray79" => "c9c9c9",
   "gray8" => "141414",
   "gray80" => "cccccc",
   "gray81" => "cfcfcf",
   "gray82" => "d1d1d1",
   "gray83" => "d4d4d4",
   "gray84" => "d6d6d6",
   "gray85" => "d9d9d9",
   "gray86" => "dbdbdb",
   "gray87" => "dedede",
   "gray88" => "e0e0e0",
   "gray89" => "e3e3e3",
   "gray9" => "171717",
   "gray90" => "e5e5e5",
   "gray91" => "e8e8e8",
   "gray92" => "ebebeb",
   "gray93" => "ededed",
   "gray94" => "f0f0f0",
   "gray95" => "f2f2f2",
   "gray96" => "f5f5f5",
   "gray97" => "f7f7f7",
   "gray98" => "fafafa",
   "gray99" => "fcfcfc",
   "green" => "008000",
   "green1" => "00ff00",
   "green2" => "00ee00",
   "green3" => "00cd00",
   "green4" => "008b00",
   "greenyellow" => "adff2f",
   "grey" => "808080",
   "grey0" => "000000",
   "grey1" => "030303",
   "grey10" => "1a1a1a",
   "grey100" => "ffffff",
   "grey11" => "1c1c1c",
   "grey12" => "1f1f1f",
   "grey13" => "212121",
   "grey14" => "242424",
   "grey15" => "262626",
   "grey16" => "292929",
   "grey17" => "2b2b2b",
   "grey18" => "2e2e2e",
   "grey19" => "303030",
   "grey2" => "050505",
   "grey20" => "333333",
   "grey21" => "363636",
   "grey22" => "383838",
   "grey23" => "3b3b3b",
   "grey24" => "3d3d3d",
   "grey25" => "404040",
   "grey26" => "424242",
   "grey27" => "454545",
   "grey28" => "474747",
   "grey29" => "4a4a4a",
   "grey3" => "080808",
   "grey30" => "4d4d4d",
   "grey31" => "4f4f4f",
   "grey32" => "525252",
   "grey33" => "545454",
   "grey34" => "575757",
   "grey35" => "595959",
   "grey36" => "5c5c5c",
   "grey37" => "5e5e5e",
   "grey38" => "616161",
   "grey39" => "636363",
   "grey4" => "0a0a0a",
   "grey40" => "666666",
   "grey41" => "696969",
   "grey42" => "6b6b6b",
   "grey43" => "6e6e6e",
   "grey44" => "707070",
   "grey45" => "737373",
   "grey46" => "757575",
   "grey47" => "787878",
   "grey48" => "7a7a7a",
   "grey49" => "7d7d7d",
   "grey5" => "0d0d0d",
   "grey50" => "7f7f7f",
   "grey51" => "828282",
   "grey52" => "858585",
   "grey53" => "878787",
   "grey54" => "8a8a8a",
   "grey55" => "8c8c8c",
   "grey56" => "8f8f8f",
   "grey57" => "919191",
   "grey58" => "949494",
   "grey59" => "969696",
   "grey6" => "0f0f0f",
   "grey60" => "999999",
   "grey61" => "9c9c9c",
   "grey62" => "9e9e9e",
   "grey63" => "a1a1a1",
   "grey64" => "a3a3a3",
   "grey65" => "a6a6a6",
   "grey66" => "a8a8a8",
   "grey67" => "ababab",
   "grey68" => "adadad",
   "grey69" => "b0b0b0",
   "grey7" => "121212",
   "grey70" => "b3b3b3",
   "grey71" => "b5b5b5",
   "grey72" => "b8b8b8",
   "grey73" => "bababa",
   "grey74" => "bdbdbd",
   "grey75" => "bfbfbf",
   "grey76" => "c2c2c2",
   "grey77" => "c4c4c4",
   "grey78" => "c7c7c7",
   "grey79" => "c9c9c9",
   "grey8" => "141414",
   "grey80" => "cccccc",
   "grey81" => "cfcfcf",
   "grey82" => "d1d1d1",
   "grey83" => "d4d4d4",
   "grey84" => "d6d6d6",
   "grey85" => "d9d9d9",
   "grey86" => "dbdbdb",
   "grey87" => "dedede",
   "grey88" => "e0e0e0",
   "grey89" => "e3e3e3",
   "grey9" => "171717",
   "grey90" => "e5e5e5",
   "grey91" => "e8e8e8",
   "grey92" => "ebebeb",
   "grey93" => "ededed",
   "grey94" => "f0f0f0",
   "grey95" => "f2f2f2",
   "grey96" => "f5f5f5",
   "grey97" => "f7f7f7",
   "grey98" => "fafafa",
   "grey99" => "fcfcfc",
   "honeydew" => "f0fff0",
   "honeydew1" => "f0fff0",
   "honeydew2" => "e0eee0",
   "honeydew3" => "c1cdc1",
   "honeydew4" => "838b83",
   "hotpink" => "ff69b4",
   "hotpink1" => "ff6eb4",
   "hotpink2" => "ee6aa7",
   "hotpink3" => "cd6090",
   "hotpink4" => "8b3a62",
   "indianred" => "cd5c5c",
   "indianred1" => "ff6a6a",
   "indianred2" => "ee6363",
   "indianred3" => "cd5555",
   "indianred4" => "8b3a3a",
   "indigo" => "4b0082",
   "invis" => "fffffe",
   "ivory" => "fffff0",
   "ivory1" => "fffff0",
   "ivory2" => "eeeee0",
   "ivory3" => "cdcdc1",
   "ivory4" => "8b8b83",
   "khaki" => "f0e68c",
   "khaki1" => "fff68f",
   "khaki2" => "eee685",
   "khaki3" => "cdc673",
   "khaki4" => "8b864e",
   "lavender" => "e6e6fa",
   "lavenderblush" => "fff0f5",
   "lavenderblush1" => "fff0f5",
   "lavenderblush2" => "eee0e5",
   "lavenderblush3" => "cdc1c5",
   "lavenderblush4" => "8b8386",
   "lawngreen" => "7cfc00",
   "lemonchiffon" => "fffacd",
   "lemonchiffon1" => "fffacd",
   "lemonchiffon2" => "eee9bf",
   "lemonchiffon3" => "cdc9a5",
   "lemonchiffon4" => "8b8970",
   "lightblue" => "add8e6",
   "lightblue1" => "bfefff",
   "lightblue2" => "b2dfee",
   "lightblue3" => "9ac0cd",
   "lightblue4" => "68838b",
   "lightcoral" => "f08080",
   "lightcyan" => "e0ffff",
   "lightcyan1" => "e0ffff",
   "lightcyan2" => "d1eeee",
   "lightcyan3" => "b4cdcd",
   "lightcyan4" => "7a8b8b",
   "lightgoldenrod" => "eedd82",
   "lightgoldenrod1" => "ffec8b",
   "lightgoldenrod2" => "eedc82",
   "lightgoldenrod3" => "cdbe70",
   "lightgoldenrod4" => "8b814c",
   "lightgoldenrodyellow" => "fafad2",
   "lightgray" => "d3d3d3",
   "lightgrey" => "d3d3d3",
   "lightpink" => "ffb6c1",
   "lightpink1" => "ffaeb9",
   "lightpink2" => "eea2ad",
   "lightpink3" => "cd8c95",
   "lightpink4" => "8b5f65",
   "lightsalmon" => "ffa07a",
   "lightsalmon1" => "ffa07a",
   "lightsalmon2" => "ee9572",
   "lightsalmon3" => "cd8162",
   "lightsalmon4" => "8b5742",
   "lightseagreen" => "20b2aa",
   "lightskyblue" => "87cefa",
   "lightskyblue1" => "b0e2ff",
   "lightskyblue2" => "a4d3ee",
   "lightskyblue3" => "8db6cd",
   "lightskyblue4" => "607b8b",
   "lightslateblue" => "8470ff",
   "lightslategray" => "778899",
   "lightslategrey" => "778899",
   "lightsteelblue" => "b0c4de",
   "lightsteelblue1" => "cae1ff",
   "lightsteelblue2" => "bcd2ee",
   "lightsteelblue3" => "a2b5cd",
   "lightsteelblue4" => "6e7b8b",
   "lightyellow" => "ffffe0",
   "lightyellow1" => "ffffe0",
   "lightyellow2" => "eeeed1",
   "lightyellow3" => "cdcdb4",
   "lightyellow4" => "8b8b7a",
   "limegreen" => "32cd32",
   "linen" => "faf0e6",
   "magenta" => "ff00ff",
   "magenta1" => "ff00ff",
   "magenta2" => "ee00ee",
   "magenta3" => "cd00cd",
   "magenta4" => "8b008b",
   "maroon" => "800000",
   "maroon1" => "ff34b3",
   "maroon2" => "ee30a7",
   "maroon3" => "cd2990",
   "maroon4" => "8b1c62",
   "mediumaquamarine" => "66cdaa",
   "mediumblue" => "0000cd",
   "mediumorchid" => "ba55d3",
   "mediumorchid1" => "e066ff",
   "mediumorchid2" => "d15fee",
   "mediumorchid3" => "b452cd",
   "mediumorchid4" => "7a378b",
   "mediumpurple" => "9370db",
   "mediumpurple1" => "ab82ff",
   "mediumpurple2" => "9f79ee",
   "mediumpurple3" => "8968cd",
   "mediumpurple4" => "5d478b",
   "mediumseagreen" => "3cb371",
   "mediumslateblue" => "7b68ee",
   "mediumspringgreen" => "00fa9a",
   "mediumturquoise" => "48d1cc",
   "mediumvioletred" => "c71585",
   "midnightblue" => "191970",
   "mintcream" => "f5fffa",
   "mistyrose" => "ffe4e1",
   "mistyrose1" => "ffe4e1",
   "mistyrose2" => "eed5d2",
   "mistyrose3" => "cdb7b5",
   "mistyrose4" => "8b7d7b",
   "moccasin" => "ffe4b5",
   "navajowhite" => "ffdead",
   "navajowhite1" => "ffdead",
   "navajowhite2" => "eecfa1",
   "navajowhite3" => "cdb38b",
   "navajowhite4" => "8b795e",
   "navy" => "000080",
   "navyblue" => "000080",
   "none" => "fffffe",
   "oldlace" => "fdf5e6",
   "olivedrab" => "6b8e23",
   "olivedrab1" => "c0ff3e",
   "olivedrab2" => "b3ee3a",
   "olivedrab3" => "9acd32",
   "olivedrab4" => "698b22",
   "orange" => "ffa500",
   "orange1" => "ffa500",
   "orange2" => "ee9a00",
   "orange3" => "cd8500",
   "orange4" => "8b5a00",
   "orangered" => "ff4500",
   "orangered1" => "ff4500",
   "orangered2" => "ee4000",
   "orangered3" => "cd3700",
   "orangered4" => "8b2500",
   "orchid" => "da70d6",
   "orchid1" => "ff83fa",
   "orchid2" => "ee7ae9",
   "orchid3" => "cd69c9",
   "orchid4" => "8b4789",
   "palegoldenrod" => "eee8aa",
   "palegreen" => "98fb98",
   "palegreen1" => "9aff9a",
   "palegreen2" => "90ee90",
   "palegreen3" => "7ccd7c",
   "palegreen4" => "548b54",
   "paleturquoise" => "afeeee",
   "paleturquoise1" => "bbffff",
   "paleturquoise2" => "aeeeee",
   "paleturquoise3" => "96cdcd",
   "paleturquoise4" => "668b8b",
   "palevioletred" => "db7093",
   "palevioletred1" => "ff82ab",
   "palevioletred2" => "ee799f",
   "palevioletred3" => "cd6889",
   "palevioletred4" => "8b475d",
   "papayawhip" => "ffefd5",
   "peachpuff" => "ffdab9",
   "peachpuff1" => "ffdab9",
   "peachpuff2" => "eecbad",
   "peachpuff3" => "cdaf95",
   "peachpuff4" => "8b7765",
   "peru" => "cd853f",
   "pink" => "ffc0cb",
   "pink1" => "ffb5c5",
   "pink2" => "eea9b8",
   "pink3" => "cd919e",
   "pink4" => "8b636c",
   "plum" => "dda0dd",
   "plum1" => "ffbbff",
   "plum2" => "eeaeee",
   "plum3" => "cd96cd",
   "plum4" => "8b668b",
   "powderblue" => "b0e0e6",
   "purple" => "800080",
   "purple1" => "9b30ff",
   "purple2" => "912cee",
   "purple3" => "7d26cd",
   "purple4" => "551a8b",
   "red" => "ff0000",
   "red1" => "ff0000",
   "red2" => "ee0000",
   "red3" => "cd0000",
   "red4" => "8b0000",
   "rosybrown" => "bc8f8f",
   "rosybrown1" => "ffc1c1",
   "rosybrown2" => "eeb4b4",
   "rosybrown3" => "cd9b9b",
   "rosybrown4" => "8b6969",
   "royalblue" => "4169e1",
   "royalblue1" => "4876ff",
   "royalblue2" => "436eee",
   "royalblue3" => "3a5fcd",
   "royalblue4" => "27408b",
   "saddlebrown" => "8b4513",
   "salmon" => "fa8072",
   "salmon1" => "ff8c69",
   "salmon2" => "ee8262",
   "salmon3" => "cd7054",
   "salmon4" => "8b4c39",
   "sandybrown" => "f4a460",
   "seagreen" => "2e8b57",
   "seagreen1" => "54ff9f",
   "seagreen2" => "4eee94",
   "seagreen3" => "43cd80",
   "seagreen4" => "2e8b57",
   "seashell" => "fff5ee",
   "seashell1" => "fff5ee",
   "seashell2" => "eee5de",
   "seashell3" => "cdc5bf",
   "seashell4" => "8b8682",
   "sienna" => "a0522d",
   "sienna1" => "ff8247",
   "sienna2" => "ee7942",
   "sienna3" => "cd6839",
   "sienna4" => "8b4726",
   "skyblue" => "87ceeb",
   "skyblue1" => "87ceff",
   "skyblue2" => "7ec0ee",
   "skyblue3" => "6ca6cd",
   "skyblue4" => "4a708b",
   "slateblue" => "6a5acd",
   "slateblue1" => "836fff",
   "slateblue2" => "7a67ee",
   "slateblue3" => "6959cd",
   "slateblue4" => "473c8b",
   "slategray" => "708090",
   "slategray1" => "c6e2ff",
   "slategray2" => "b9d3ee",
   "slategray3" => "9fb6cd",
   "slategray4" => "6c7b8b",
   "slategrey" => "708090",
   "snow" => "fffafa",
   "snow1" => "fffafa",
   "snow2" => "eee9e9",
   "snow3" => "cdc9c9",
   "snow4" => "8b8989",
   "springgreen" => "00ff7f",
   "springgreen1" => "00ff7f",
   "springgreen2" => "00ee76",
   "springgreen3" => "00cd66",
   "springgreen4" => "008b45",
   "steelblue" => "4682b4",
   "steelblue1" => "63b8ff",
   "steelblue2" => "5cacee",
   "steelblue3" => "4f94cd",
   "steelblue4" => "36648b",
   "tan" => "d2b48c",
   "tan1" => "ffa54f",
   "tan2" => "ee9a49",
   "tan3" => "cd853f",
   "tan4" => "8b5a2b",
   "thistle" => "d8bfd8",
   "thistle1" => "ffe1ff",
   "thistle2" => "eed2ee",
   "thistle3" => "cdb5cd",
   "thistle4" => "8b7b8b",
   "tomato" => "ff6347",
   "tomato1" => "ff6347",
   "tomato2" => "ee5c42",
   "tomato3" => "cd4f39",
   "tomato4" => "8b3626",
   "transparent" => "fffffe",
   "turquoise" => "40e0d0",
   "turquoise1" => "00f5ff",
   "turquoise2" => "00e5ee",
   "turquoise3" => "00c5cd",
   "turquoise4" => "00868b",
   "violet" => "ee82ee",
   "violetred" => "d02090",
   "violetred1" => "ff3e96",
   "violetred2" => "ee3a8c",
   "violetred3" => "cd3278",
   "violetred4" => "8b2252",
   "wheat" => "f5deb3",
   "wheat1" => "ffe7ba",
   "wheat2" => "eed8ae",
   "wheat3" => "cdba96",
   "wheat4" => "8b7e66",
   "white" => "ffffff",
   "whitesmoke" => "f5f5f5",
   "yellow" => "ffff00",
   "yellow1" => "ffff00",
   "yellow2" => "eeee00",
   "yellow3" => "cdcd00",
   "yellow4" => "8b8b00",
   "yellowgreen" => "9acd32",
   "aqua" => "00ffff",
   "darkblue" => "00008b",
   "darkcyan" => "008b8b",
   "darkgray" => "a9a9a9",
   "darkgrey" => "a9a9a9",
   "darkmagenta" => "8b008b",
   "darkred" => "8b0000",
   "fuchsia" => "ff00ff",
   "lightgreen" => "90ee90",
   "lime" => "00ff00",
   "olive" => "808000",
   "silver" => "c0c0c0",
   "teal" => "008080"
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Colors

Returns a new instance of Colors.



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# File 'lib/graphviz/utils/colors.rb', line 12

def initialize
   @r, @g, @b, @a, @h, @s, @v, @color = nil, nil, nil, nil, nil, nil, nil, nil
end

Instance Attribute Details

#a ⇒ Object (readonly)

Returns the value of attribute a.



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# File 'lib/graphviz/utils/colors.rb', line 9

def a
  @a
end

#b ⇒ Object (readonly)

Returns the value of attribute b.



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# File 'lib/graphviz/utils/colors.rb', line 9

def b
  @b
end

#g ⇒ Object (readonly)

Returns the value of attribute g.



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# File 'lib/graphviz/utils/colors.rb', line 9

def g
  @g
end

#h ⇒ Object (readonly)

Returns the value of attribute h.



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# File 'lib/graphviz/utils/colors.rb', line 10

def h
  @h
end

#r ⇒ Object (readonly)

Returns the value of attribute r.



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# File 'lib/graphviz/utils/colors.rb', line 9

def r
  @r
end

#s ⇒ Object (readonly)

Returns the value of attribute s.



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# File 'lib/graphviz/utils/colors.rb', line 10

def s
  @s
end

#v ⇒ Object (readonly)

Returns the value of attribute v.



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# File 'lib/graphviz/utils/colors.rb', line 10

def v
  @v
end

Class Method Details

.hsv(h, s, v) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 116

def hsv(h, s, v)
   color = Colors.new
   color.hsv(h, s, v)
   color
end

.hsv_to_rgb(h, s, v) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 162

def hsv_to_rgb(h, s, v)
   _h, _s, _v = h.to_f * 360.0, s.to_f, v.to_f

   if _s == 0.0
     r = (_v * 255 ).to_i.to_s.convert_base(10,16)
     return [r, r, r]
   end

   _h = _h / 60.0
   i = _h.floor
   f = _h - i
   p = _v * ( 1.0 - _s )
   q = _v * ( 1.0 - _s * f )
   t = _v * ( 1.0 - _s * ( 1 - f ) )
   case i
   when 0
      r = _v
      g = t
      b = p
   when 1
      r = q
      g = _v
      b = p
   when 2
      r = p
      g = _v
      b = t
   when 3
      r = p
      g = q
      b = _v
   when 4
      r = t
      g = p
      b = _v
   else
      r = _v
      g = p
      b = q
   end

   [
      (r * 255).to_i.to_s.convert_base(10, 16),
      (g * 255).to_i.to_s.convert_base(10, 16),
      (b * 255).to_i.to_s.convert_base(10, 16)
   ]
end

.name(c) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 122

def name(c)
   color = Colors.new
   color.name(c)
   color
end

.rgb(r, g, b, a = nil) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 110

def rgb(r, g, b, a = nil)
   color = Colors.new
   color.rgb(r, g, b, a)
   color
end

.rgb_to_hsv(r, g, b) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 128

def rgb_to_hsv(r, g, b)
   h, s, v = 0.0, 0.0, 0.0

   _r = r.convert_base(16, 10).to_f / 255.0
   _g = g.convert_base(16, 10).to_f / 255.0
   _b = b.convert_base(16, 10).to_f / 255.0
   rgb = [ _r, _g, _b ]

   min = rgb.min
   max = rgb.max
   v = max

   delta = max - min
   if max != 0.0
      s = delta / max
   else
      return [-1, 0, v]
   end

   if _r == max
      h = ( _g - _b ) / delta
   elsif( _g == max )
      h = 2 + ( _b - _r ) / delta
   else
      h = 4 + ( _r - _g ) / delta
   end

   h = h * 60
   h = h + 360 if h < 0
   h = h / 360.0

   [h, s, v]
end

Instance Method Details

#hsv(h, s, v) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 55

def hsv(h, s, v)
   unless h.is_a?(Float) and s.is_a?(Float) and v.is_a?(Float)
      raise ColorException, "Bas HSV value"
   end

   @h = h
   @s = s
   @v = v

   @r, @g, @b = hsv_to_rgb(@h, @s, @v)

   @color = COLORS.key(rgba_string.downcase);
end

#hsv_string(s = ", ") ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 93

def hsv_string(s = ", ")
   unless @h.nil?
      "#{@h}#{s}#{@s}#{s}#{@v}"
   else
      nil
   end
end

#hsv_to_rgb(h, s, v) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 105

def hsv_to_rgb(h, s, v)
   Colors.hsv_to_rgb(h, s, v)
end

#name(c = nil) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 69

def name(c = nil)
   return @color if c.nil?

   @color = c

   rgb = COLORS[c]
   unless rgb.nil?
      m = RGBA.match(rgb)
      @r = m[1]
      @g = m[2]
      @b = m[3]

      @h, @s, @v = rgb_to_hsv(@r, @g, @b)
   end
end

#rgb(r, g, b, a = nil) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 16

def rgb(r, g, b, a = nil)
   if r.is_a?(Integer)
      r = r.to_s.convert_base(10, 16)
   end
   unless r.is_a?(String) and HEX_FOR_COLOR.match(r)
      raise ColorException, "Bad red value"
   end

   if g.is_a?(Integer)
      g = g.to_s.convert_base(10, 16)
   end
   unless g.is_a?(String) and HEX_FOR_COLOR.match(g)
      raise ColorException, "Bad green value"
   end

   if b.is_a?(Integer)
      b = b.to_s.convert_base(10, 16)
   end
   unless b.is_a?(String) and HEX_FOR_COLOR.match(b)
      raise ColorException, "Bad blue value"
   end

   if a.is_a?(Integer)
      a = a.to_s.convert_base(10, 16)
   end
   unless a.nil? or (a.is_a?(String) and HEX_FOR_COLOR.match(a))
      raise ColorException, "Bad alpha value"
   end

   @r = r
   @g = g
   @b = b
   @a = a

   @color = COLORS.key(rgba_string.downcase)

   @h, @s, @v = rgb_to_hsv(@r, @g, @b)
end

#rgb_to_hsv(r, g, b) ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 101

def rgb_to_hsv(r, g, b)
   Colors.rgb_to_hsv(r, g, b)
end

#rgba_string(c = "") ⇒ Object 



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# File 'lib/graphviz/utils/colors.rb', line 85

def rgba_string(c = "")
   unless @r.nil?
      "#{c}#{@r}#{@g}#{@b}#{((@a.nil?)?"":@a)}"
   else
      nil
   end
end