7 lines
8.6 KiB
Go
7 lines
8.6 KiB
Go
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package main
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import "image/color"
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// palette of colors (iron) taken from http://ramphastosramblings.blogspot.com/2014/03/choosing-appropriate-colour-palette-for.html
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var colors = []color.RGBA{{0, 0, 10, 255}, {0, 0, 20, 255}, {0, 0, 30, 255}, {0, 0, 37, 255}, {0, 0, 42, 255}, {0, 0, 46, 255}, {0, 0, 50, 255}, {0, 0, 54, 255}, {0, 0, 58, 255}, {0, 0, 62, 255}, {0, 0, 66, 255}, {0, 0, 70, 255}, {0, 0, 74, 255}, {0, 0, 79, 255}, {0, 0, 82, 255}, {1, 0, 85, 255}, {1, 0, 87, 255}, {2, 0, 89, 255}, {2, 0, 92, 255}, {3, 0, 94, 255}, {4, 0, 97, 255}, {4, 0, 99, 255}, {5, 0, 101, 255}, {6, 0, 103, 255}, {7, 0, 105, 255}, {8, 0, 107, 255}, {9, 0, 110, 255}, {10, 0, 112, 255}, {11, 0, 115, 255}, {12, 0, 116, 255}, {13, 0, 117, 255}, {13, 0, 118, 255}, {14, 0, 119, 255}, {16, 0, 120, 255}, {18, 0, 121, 255}, {19, 0, 123, 255}, {21, 0, 124, 255}, {23, 0, 125, 255}, {25, 0, 126, 255}, {27, 0, 128, 255}, {28, 0, 129, 255}, {30, 0, 131, 255}, {32, 0, 132, 255}, {34, 0, 133, 255}, {36, 0, 134, 255}, {38, 0, 135, 255}, {40, 0, 137, 255}, {42, 0, 137, 255}, {44, 0, 138, 255}, {46, 0, 139, 255}, {48, 0, 140, 255}, {50, 0, 141, 255}, {52, 0, 142, 255}, {54, 0, 142, 255}, {56, 0, 143, 255}, {57, 0, 144, 255}, {59, 0, 145, 255}, {60, 0, 146, 255}, {62, 0, 147, 255}, {63, 0, 147, 255}, {65, 0, 148, 255}, {66, 0, 149, 255}, {68, 0, 149, 255}, {69, 0, 150, 255}, {71, 0, 150, 255}, {73, 0, 150, 255}, {74, 0, 150, 255}, {76, 0, 151, 255}, {78, 0, 151, 255}, {79, 0, 151, 255}, {81, 0, 151, 255}, {82, 0, 152, 255}, {84, 0, 152, 255}, {86, 0, 152, 255}, {88, 0, 153, 255}, {90, 0, 153, 255}, {92, 0, 153, 255}, {93, 0, 154, 255}, {95, 0, 154, 255}, {97, 0, 155, 255}, {99, 0, 155, 255}, {100, 0, 155, 255}, {102, 0, 155, 255}, {104, 0, 155, 255}, {106, 0, 155, 255}, {108, 0, 156, 255}, {109, 0, 156, 255}, {111, 0, 156, 255}, {112, 0, 156, 255}, {113, 0, 157, 255}, {115, 0, 157, 255}, {117, 0, 157, 255}, {119, 0, 157, 255}, {120, 0, 157, 255}, {122, 0, 157, 255}, {124, 0, 157, 255}, {126, 0, 157, 255}, {127, 0, 157, 255}, {129, 0, 157, 255}, {131, 0, 157, 255}, {132, 0, 157, 255}, {134, 0, 157, 255}, {135, 0, 157, 255}, {137, 0, 157, 255}, {138, 0, 157, 255}, {139, 0, 157, 255}, {141, 0, 157, 255}, {143, 0, 156, 255}, {145, 0, 156, 255}, {147, 0, 156, 255}, {149, 0, 156, 255}, {150, 0, 155, 255}, {152, 0, 155, 255}, {153, 0, 155, 255}, {155, 0, 155, 255}, {156, 0, 155, 255}, {157, 0, 155, 255}, {159, 0, 155, 255}, {160, 0, 155, 255}, {162, 0, 155, 255}, {163, 0, 155, 255}, {164, 0, 155, 255}, {166, 0, 154, 255}, {167, 0, 154, 255}, {168, 0, 154, 255}, {169, 0, 153, 255}, {170, 0, 153, 255}, {171, 0, 153, 255}, {173, 0, 153, 255}, {174, 1, 152, 255}, {175, 1, 152, 255}, {176, 1, 152, 255}, {176, 1, 152, 255}, {177, 1, 151, 255}, {178, 1, 151, 255}, {179, 1, 150, 255}, {180, 2, 150, 255}, {181, 2, 149, 255}, {182, 2, 149, 255}, {183, 3, 149, 255}, {184, 3, 149, 255}, {185, 4, 149, 255}, {186, 4, 149, 255}, {186, 4, 148, 255}, {187, 5, 147, 255}, {188, 5, 147, 255}, {189, 5, 147, 255}, {190, 6, 146, 255}, {191, 6, 146, 255}, {191, 6, 146, 255}, {192, 7, 145, 255}, {192, 7, 145, 255}, {193, 8, 144, 255}, {193, 9, 144, 255}, {194, 10, 143, 255}, {195, 10, 142, 255}, {195, 11, 142, 255}, {196, 12, 141, 255}, {197, 12, 140, 255}, {198, 13, 139, 255}, {198, 14, 138, 255}, {199, 15, 137, 255}, {200, 16, 136, 255}, {201, 17, 135, 255}, {202, 18, 134, 255}, {202, 19, 133, 255}, {203, 19, 133, 255}, {203, 20, 132, 255}, {204, 21, 130, 255}, {205, 22, 129, 255}, {206, 23, 128, 255}, {206, 24, 126, 255}, {207, 24, 124, 255}, {207, 25, 123, 255}, {208, 26, 121, 255}, {209, 27, 120, 255}, {209, 28, 118, 255}, {210, 28, 117, 255}, {210, 29, 116, 255}, {211, 30, 114, 255}, {211, 32, 113, 255}, {212, 33, 111, 255}, {212, 34, 110, 255}, {213, 35, 107, 255}, {213, 36, 105, 255}, {214, 37, 103, 255}, {215, 38, 101, 255}, {216, 39, 100, 255}, {216, 40, 98, 255}, {217, 42, 96, 255}, {218, 43, 94, 255}, {218, 44, 92, 255}, {219, 46, 90, 255}, {219, 47, 87, 255}, {220, 47, 84, 255}, {221, 48, 81, 255}, {221, 49, 78, 255}, {222, 50, 74, 255}, {222, 51, 71, 255}, {223, 52, 68, 255}, {223, 53, 65, 255}, {223, 54, 61, 255}, {224, 55, 58, 255}, {224, 56, 55, 255}, {224, 57, 51, 255}, {225, 58, 48, 255}, {226, 59, 45, 255}, {226, 60, 42, 255}, {227,
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