1 use crate::gradient::EvalGradient; 2 use crate::{interpolate, Color, Gradient}; 3 4 #[derive(Copy, Clone)] 5 struct Diverging { 6 name: &'static str, 7 three: [Color; 3], 8 four: [Color; 4], 9 five: [Color; 5], 10 six: [Color; 6], 11 seven: [Color; 7], 12 eight: [Color; 8], 13 nine: [Color; 9], 14 ten: [Color; 10], 15 eleven: [Color; 11], 16 } 17 18 impl EvalGradient for Diverging { name(&self) -> &'static str19 fn name(&self) -> &'static str { 20 self.name 21 } 22 eval_rational(&self, i: usize, n: usize) -> Color23 fn eval_rational(&self, i: usize, n: usize) -> Color { 24 match n { 25 0 | 1 => self.three[2], 26 2 => self.three[i * 2], 27 3 => self.three[i], 28 4 => self.four[i], 29 5 => self.five[i], 30 6 => self.six[i], 31 7 => self.seven[i], 32 8 => self.eight[i], 33 9 => self.nine[i], 34 10 => self.ten[i], 35 11 => self.eleven[i], 36 _ => self.eval_continuous(i as f64 / (n - 1) as f64), 37 } 38 } 39 eval_continuous(&self, t: f64) -> Color40 fn eval_continuous(&self, t: f64) -> Color { 41 interpolate::spline(&self.eleven, t) 42 } 43 } 44 45 /// ​ 46 /// 47 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/BrBG.png" width="100%" height="40" alt="BrBG"> 48 pub const BROWN_GREEN: Gradient = Gradient { 49 eval: &Diverging { 50 name: "BrBG", 51 three: colors!(0xd8b365 0xf5f5f5 0x5ab4ac), 52 four: colors!(0xa6611a 0xdfc27d 0x80cdc1 0x018571), 53 five: colors!(0xa6611a 0xdfc27d 0xf5f5f5 0x80cdc1 0x018571), 54 six: colors!(0x8c510a 0xd8b365 0xf6e8c3 0xc7eae5 0x5ab4ac 0x01665e), 55 seven: colors!(0x8c510a 0xd8b365 0xf6e8c3 0xf5f5f5 0xc7eae5 0x5ab4ac 0x01665e), 56 eight: colors!(0x8c510a 0xbf812d 0xdfc27d 0xf6e8c3 0xc7eae5 0x80cdc1 0x35978f 0x01665e), 57 nine: colors!(0x8c510a 0xbf812d 0xdfc27d 0xf6e8c3 0xf5f5f5 0xc7eae5 0x80cdc1 0x35978f 0x01665e), 58 ten: colors!(0x543005 0x8c510a 0xbf812d 0xdfc27d 0xf6e8c3 0xc7eae5 0x80cdc1 0x35978f 0x01665e 0x003c30), 59 eleven: colors!(0x543005 0x8c510a 0xbf812d 0xdfc27d 0xf6e8c3 0xf5f5f5 0xc7eae5 0x80cdc1 0x35978f 0x01665e 0x003c30), 60 }, 61 }; 62 63 /// ​ 64 /// 65 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/PRGn.png" width="100%" height="40" alt="PRGn"> 66 pub const PURPLE_GREEN: Gradient = Gradient { 67 eval: &Diverging { 68 name: "PRGn", 69 three: colors!(0xaf8dc3 0xf7f7f7 0x7fbf7b), 70 four: colors!(0x7b3294 0xc2a5cf 0xa6dba0 0x008837), 71 five: colors!(0x7b3294 0xc2a5cf 0xf7f7f7 0xa6dba0 0x008837), 72 six: colors!(0x762a83 0xaf8dc3 0xe7d4e8 0xd9f0d3 0x7fbf7b 0x1b7837), 73 seven: colors!(0x762a83 0xaf8dc3 0xe7d4e8 0xf7f7f7 0xd9f0d3 0x7fbf7b 0x1b7837), 74 eight: colors!(0x762a83 0x9970ab 0xc2a5cf 0xe7d4e8 0xd9f0d3 0xa6dba0 0x5aae61 0x1b7837), 75 nine: colors!(0x762a83 0x9970ab 0xc2a5cf 0xe7d4e8 0xf7f7f7 0xd9f0d3 0xa6dba0 0x5aae61 0x1b7837), 76 ten: colors!(0x40004b 0x762a83 0x9970ab 0xc2a5cf 0xe7d4e8 0xd9f0d3 0xa6dba0 0x5aae61 0x1b7837 0x00441b), 77 eleven: colors!(0x40004b 0x762a83 0x9970ab 0xc2a5cf 0xe7d4e8 0xf7f7f7 0xd9f0d3 0xa6dba0 0x5aae61 0x1b7837 0x00441b), 78 }, 79 }; 80 81 /// ​ 82 /// 83 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/PiYG.png" width="100%" height="40" alt="PiYG"> 84 pub const PINK_GREEN: Gradient = Gradient { 85 eval: &Diverging { 86 name: "PiYG", 87 three: colors!(0xe9a3c9 0xf7f7f7 0xa1d76a), 88 four: colors!(0xd01c8b 0xf1b6da 0xb8e186 0x4dac26), 89 five: colors!(0xd01c8b 0xf1b6da 0xf7f7f7 0xb8e186 0x4dac26), 90 six: colors!(0xc51b7d 0xe9a3c9 0xfde0ef 0xe6f5d0 0xa1d76a 0x4d9221), 91 seven: colors!(0xc51b7d 0xe9a3c9 0xfde0ef 0xf7f7f7 0xe6f5d0 0xa1d76a 0x4d9221), 92 eight: colors!(0xc51b7d 0xde77ae 0xf1b6da 0xfde0ef 0xe6f5d0 0xb8e186 0x7fbc41 0x4d9221), 93 nine: colors!(0xc51b7d 0xde77ae 0xf1b6da 0xfde0ef 0xf7f7f7 0xe6f5d0 0xb8e186 0x7fbc41 0x4d9221), 94 ten: colors!(0x8e0152 0xc51b7d 0xde77ae 0xf1b6da 0xfde0ef 0xe6f5d0 0xb8e186 0x7fbc41 0x4d9221 0x276419), 95 eleven: colors!(0x8e0152 0xc51b7d 0xde77ae 0xf1b6da 0xfde0ef 0xf7f7f7 0xe6f5d0 0xb8e186 0x7fbc41 0x4d9221 0x276419), 96 }, 97 }; 98 99 /// ​ 100 /// 101 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/PuOr.png" width="100%" height="40" alt="PuOr"> 102 pub const PURPLE_ORANGE: Gradient = Gradient { 103 eval: &Diverging { 104 name: "PuOr", 105 three: colors!(0x998ec3 0xf7f7f7 0xf1a340), 106 four: colors!(0x5e3c99 0xb2abd2 0xfdb863 0xe66101), 107 five: colors!(0x5e3c99 0xb2abd2 0xf7f7f7 0xfdb863 0xe66101), 108 six: colors!(0x542788 0x998ec3 0xd8daeb 0xfee0b6 0xf1a340 0xb35806), 109 seven: colors!(0x542788 0x998ec3 0xd8daeb 0xf7f7f7 0xfee0b6 0xf1a340 0xb35806), 110 eight: colors!(0x542788 0x8073ac 0xb2abd2 0xd8daeb 0xfee0b6 0xfdb863 0xe08214 0xb35806), 111 nine: colors!(0x542788 0x8073ac 0xb2abd2 0xd8daeb 0xf7f7f7 0xfee0b6 0xfdb863 0xe08214 0xb35806), 112 ten: colors!(0x2d004b 0x542788 0x8073ac 0xb2abd2 0xd8daeb 0xfee0b6 0xfdb863 0xe08214 0xb35806 0x7f3b08), 113 eleven: colors!(0x2d004b 0x542788 0x8073ac 0xb2abd2 0xd8daeb 0xf7f7f7 0xfee0b6 0xfdb863 0xe08214 0xb35806 0x7f3b08), 114 }, 115 }; 116 117 /// ​ 118 /// 119 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/RdBu.png" width="100%" height="40" alt="RdBu"> 120 pub const RED_BLUE: Gradient = Gradient { 121 eval: &Diverging { 122 name: "RdBu", 123 three: colors!(0xef8a62 0xf7f7f7 0x67a9cf), 124 four: colors!(0xca0020 0xf4a582 0x92c5de 0x0571b0), 125 five: colors!(0xca0020 0xf4a582 0xf7f7f7 0x92c5de 0x0571b0), 126 six: colors!(0xb2182b 0xef8a62 0xfddbc7 0xd1e5f0 0x67a9cf 0x2166ac), 127 seven: colors!(0xb2182b 0xef8a62 0xfddbc7 0xf7f7f7 0xd1e5f0 0x67a9cf 0x2166ac), 128 eight: colors!(0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xd1e5f0 0x92c5de 0x4393c3 0x2166ac), 129 nine: colors!(0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xf7f7f7 0xd1e5f0 0x92c5de 0x4393c3 0x2166ac), 130 ten: colors!(0x67001f 0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xd1e5f0 0x92c5de 0x4393c3 0x2166ac 0x053061), 131 eleven: colors!(0x67001f 0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xf7f7f7 0xd1e5f0 0x92c5de 0x4393c3 0x2166ac 0x053061), 132 }, 133 }; 134 135 /// ​ 136 /// 137 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/RdGy.png" width="100%" height="40" alt="RdGy"> 138 pub const RED_GREY: Gradient = Gradient { 139 eval: &Diverging { 140 name: "RdGy", 141 three: colors!(0xef8a62 0xffffff 0x999999), 142 four: colors!(0xca0020 0xf4a582 0xbababa 0x404040), 143 five: colors!(0xca0020 0xf4a582 0xffffff 0xbababa 0x404040), 144 six: colors!(0xb2182b 0xef8a62 0xfddbc7 0xe0e0e0 0x999999 0x4d4d4d), 145 seven: colors!(0xb2182b 0xef8a62 0xfddbc7 0xffffff 0xe0e0e0 0x999999 0x4d4d4d), 146 eight: colors!(0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xe0e0e0 0xbababa 0x878787 0x4d4d4d), 147 nine: colors!(0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xffffff 0xe0e0e0 0xbababa 0x878787 0x4d4d4d), 148 ten: colors!(0x67001f 0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xe0e0e0 0xbababa 0x878787 0x4d4d4d 0x1a1a1a), 149 eleven: colors!(0x67001f 0xb2182b 0xd6604d 0xf4a582 0xfddbc7 0xffffff 0xe0e0e0 0xbababa 0x878787 0x4d4d4d 0x1a1a1a), 150 }, 151 }; 152 153 /// ​ 154 /// 155 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/RdYlBu.png" width="100%" height="40" alt="RdYlBu"> 156 pub const RED_YELLOW_BLUE: Gradient = Gradient { 157 eval: &Diverging { 158 name: "RdYlBu", 159 three: colors!(0xfc8d59 0xffffbf 0x91bfdb), 160 four: colors!(0xd7191c 0xfdae61 0xabd9e9 0x2c7bb6), 161 five: colors!(0xd7191c 0xfdae61 0xffffbf 0xabd9e9 0x2c7bb6), 162 six: colors!(0xd73027 0xfc8d59 0xfee090 0xe0f3f8 0x91bfdb 0x4575b4), 163 seven: colors!(0xd73027 0xfc8d59 0xfee090 0xffffbf 0xe0f3f8 0x91bfdb 0x4575b4), 164 eight: colors!(0xd73027 0xf46d43 0xfdae61 0xfee090 0xe0f3f8 0xabd9e9 0x74add1 0x4575b4), 165 nine: colors!(0xd73027 0xf46d43 0xfdae61 0xfee090 0xffffbf 0xe0f3f8 0xabd9e9 0x74add1 0x4575b4), 166 ten: colors!(0xa50026 0xd73027 0xf46d43 0xfdae61 0xfee090 0xe0f3f8 0xabd9e9 0x74add1 0x4575b4 0x313695), 167 eleven: colors!(0xa50026 0xd73027 0xf46d43 0xfdae61 0xfee090 0xffffbf 0xe0f3f8 0xabd9e9 0x74add1 0x4575b4 0x313695), 168 }, 169 }; 170 171 /// ​ 172 /// 173 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/RdYlGn.png" width="100%" height="40" alt="RdYlGn"> 174 pub const RED_YELLOW_GREEN: Gradient = Gradient { 175 eval: &Diverging { 176 name: "RdYlGn", 177 three: colors!(0xfc8d59 0xffffbf 0x91cf60), 178 four: colors!(0xd7191c 0xfdae61 0xa6d96a 0x1a9641), 179 five: colors!(0xd7191c 0xfdae61 0xffffbf 0xa6d96a 0x1a9641), 180 six: colors!(0xd73027 0xfc8d59 0xfee08b 0xd9ef8b 0x91cf60 0x1a9850), 181 seven: colors!(0xd73027 0xfc8d59 0xfee08b 0xffffbf 0xd9ef8b 0x91cf60 0x1a9850), 182 eight: colors!(0xd73027 0xf46d43 0xfdae61 0xfee08b 0xd9ef8b 0xa6d96a 0x66bd63 0x1a9850), 183 nine: colors!(0xd73027 0xf46d43 0xfdae61 0xfee08b 0xffffbf 0xd9ef8b 0xa6d96a 0x66bd63 0x1a9850), 184 ten: colors!(0xa50026 0xd73027 0xf46d43 0xfdae61 0xfee08b 0xd9ef8b 0xa6d96a 0x66bd63 0x1a9850 0x006837), 185 eleven: colors!(0xa50026 0xd73027 0xf46d43 0xfdae61 0xfee08b 0xffffbf 0xd9ef8b 0xa6d96a 0x66bd63 0x1a9850 0x006837), 186 }, 187 }; 188 189 /// ​ 190 /// 191 /// <img src="https://raw.githubusercontent.com/dtolnay/colorous/readme/Spectral.png" width="100%" height="40" alt="Spectral"> 192 pub const SPECTRAL: Gradient = Gradient { 193 eval: &Diverging { 194 name: "Spectral", 195 three: colors!(0xfc8d59 0xffffbf 0x99d594), 196 four: colors!(0xd7191c 0xfdae61 0xabdda4 0x2b83ba), 197 five: colors!(0xd7191c 0xfdae61 0xffffbf 0xabdda4 0x2b83ba), 198 six: colors!(0xd53e4f 0xfc8d59 0xfee08b 0xe6f598 0x99d594 0x3288bd), 199 seven: colors!(0xd53e4f 0xfc8d59 0xfee08b 0xffffbf 0xe6f598 0x99d594 0x3288bd), 200 eight: colors!(0xd53e4f 0xf46d43 0xfdae61 0xfee08b 0xe6f598 0xabdda4 0x66c2a5 0x3288bd), 201 nine: colors!(0xd53e4f 0xf46d43 0xfdae61 0xfee08b 0xffffbf 0xe6f598 0xabdda4 0x66c2a5 0x3288bd), 202 ten: colors!(0x9e0142 0xd53e4f 0xf46d43 0xfdae61 0xfee08b 0xe6f598 0xabdda4 0x66c2a5 0x3288bd 0x5e4fa2), 203 eleven: colors!(0x9e0142 0xd53e4f 0xf46d43 0xfdae61 0xfee08b 0xffffbf 0xe6f598 0xabdda4 0x66c2a5 0x3288bd 0x5e4fa2), 204 }, 205 }; 206
