Initial structure
This commit is contained in:
parent
743de1bc59
commit
e07baca3a8
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@ -0,0 +1,346 @@
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package main
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import (
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"image/color"
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)
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type Color struct {
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Step float64
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Color color.Color
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}
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type ColorMap struct {
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Keyword string
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Colors []Color
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}
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var ColorPalettes = []ColorMap{
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{"AfternoonBlue", []Color{
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{0.0, color.RGBA{0x93, 0xd2, 0xca, 0xff}},
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{0.2, color.RGBA{0x6c, 0x98, 0xb8, 0xff}},
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{0.5, color.RGBA{0x38, 0x68, 0x85, 0xff}},
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{0.8, color.RGBA{0x17, 0x4f, 0x72, 0xff}},
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{1.0, color.RGBA{0x08, 0x2a, 0x4f, 0xff}},
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}},
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{"SummerBeach", []Color{
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{0.0, color.RGBA{0xff, 0xf0, 0x94, 0xff}},
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{0.3, color.RGBA{0xff, 0xb7, 0x2d, 0xff}},
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{0.6, color.RGBA{0xff, 0x8d, 0x00, 0xff}},
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{0.8, color.RGBA{0x2d, 0x69, 0xae, 0xff}},
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{1.0, color.RGBA{0x1e, 0x2c, 0x60, 0xff}},
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}},
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{"Biochimist", []Color{
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Color{Color: color.RGBA{0x51, 0x99, 0x25, 0xff}},
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Color{Color: color.RGBA{0x50, 0xa6, 0x1c, 0xff}},
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Color{Color: color.RGBA{0x4b, 0xb8, 0x0b, 0xff}},
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Color{Color: color.RGBA{0x4d, 0xcd, 0x00, 0xff}},
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Color{Color: color.RGBA{0x53, 0xdf, 0x00, 0xff}},
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}},
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{"Fiesta", []Color{
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Color{Color: color.RGBA{0x03, 0x67, 0xa6, 0xff}},
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Color{Color: color.RGBA{0x04, 0xad, 0xbf, 0xff}},
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Color{Color: color.RGBA{0x93, 0xa6, 0x03, 0xff}},
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Color{Color: color.RGBA{0xe5, 0xce, 0x1b, 0xff}},
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Color{Color: color.RGBA{0xc8, 0x3f, 0x2a, 0xff}},
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}},
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{"Hippi", []Color{
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Color{Color: color.RGBA{0x00, 0x04, 0x0f, 0xff}},
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Color{Color: color.RGBA{0x03, 0x26, 0x28, 0xff}},
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Color{Color: color.RGBA{0x07, 0x3e, 0x1e, 0xff}},
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Color{Color: color.RGBA{0x18, 0x55, 0x08, 0xff}},
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Color{Color: color.RGBA{0x5f, 0x6e, 0x0f, 0xff}},
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Color{Color: color.RGBA{0x84, 0x50, 0x19, 0xff}},
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Color{Color: color.RGBA{0x9b, 0x30, 0x22, 0xff}},
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Color{Color: color.RGBA{0xb4, 0x92, 0x2f, 0xff}},
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Color{Color: color.RGBA{0x94, 0xca, 0x3d, 0xff}},
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Color{Color: color.RGBA{0x4f, 0xd5, 0x51, 0xff}},
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Color{Color: color.RGBA{0x66, 0xff, 0xb3, 0xff}},
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Color{Color: color.RGBA{0x82, 0xc9, 0xe5, 0xff}},
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Color{Color: color.RGBA{0x9d, 0xa3, 0xeb, 0xff}},
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Color{Color: color.RGBA{0xd7, 0xb5, 0xf3, 0xff}},
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Color{Color: color.RGBA{0xfd, 0xd6, 0xf6, 0xff}},
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Color{Color: color.RGBA{0xff, 0xf0, 0xf2, 0xff}},
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}},
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{"Vivid", []Color{
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Color{Color: color.RGBA{0x02, 0x3b, 0x2b, 0xff}},
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Color{Color: color.RGBA{0x36, 0x34, 0x48, 0xff}},
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Color{Color: color.RGBA{0x04, 0x8b, 0x64, 0xff}},
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Color{Color: color.RGBA{0x81, 0x6a, 0x6e, 0xff}},
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Color{Color: color.RGBA{0x8d, 0x5e, 0x67, 0xff}},
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Color{Color: color.RGBA{0x98, 0x52, 0x60, 0xff}},
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Color{Color: color.RGBA{0xa4, 0x46, 0x59, 0xff}},
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Color{Color: color.RGBA{0xd3, 0x17, 0x3d, 0xff}},
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Color{Color: color.RGBA{0xe1, 0x08, 0x34, 0xff}},
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Color{Color: color.RGBA{0xde, 0x17, 0x30, 0xff}},
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Color{Color: color.RGBA{0xdc, 0x26, 0x2d, 0xff}},
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Color{Color: color.RGBA{0xd9, 0x36, 0x2a, 0xff}},
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Color{Color: color.RGBA{0xd7, 0x45, 0x27, 0xff}},
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Color{Color: color.RGBA{0xd5, 0x55, 0x24, 0xff}},
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Color{Color: color.RGBA{0xd2, 0x64, 0x21, 0xff}},
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Color{Color: color.RGBA{0xd0, 0x74, 0x1e, 0xff}},
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Color{Color: color.RGBA{0xce, 0x83, 0x1b, 0xff}},
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Color{Color: color.RGBA{0xcb, 0x92, 0x18, 0xff}},
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Color{Color: color.RGBA{0xc9, 0xa2, 0x15, 0xff}},
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Color{Color: color.RGBA{0x11, 0x03, 0x12, 0xff}},
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Color{Color: color.RGBA{0x33, 0x08, 0x35, 0xff}},
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Color{Color: color.RGBA{0xf5, 0xca, 0xf7, 0xff}},
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}},
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{"Plan9", []Color{
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Color{Color: color.RGBA{0x00, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0x44, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0x88, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x00, 0x44, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0x44, 0x44, 0xff}},
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Color{Color: color.RGBA{0x00, 0x44, 0x88, 0xff}},
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Color{Color: color.RGBA{0x00, 0x44, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x00, 0x88, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0x88, 0x44, 0xff}},
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Color{Color: color.RGBA{0x00, 0x88, 0x88, 0xff}},
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Color{Color: color.RGBA{0x00, 0x88, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x00, 0xcc, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0xcc, 0x44, 0xff}},
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Color{Color: color.RGBA{0x00, 0xcc, 0x88, 0xff}},
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Color{Color: color.RGBA{0x00, 0xcc, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x00, 0xdd, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x11, 0x11, 0x11, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0x55, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0x99, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x00, 0x55, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0x55, 0x55, 0xff}},
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Color{Color: color.RGBA{0x00, 0x4c, 0x99, 0xff}},
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Color{Color: color.RGBA{0x00, 0x49, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x00, 0x99, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0x99, 0x4c, 0xff}},
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Color{Color: color.RGBA{0x00, 0x99, 0x99, 0xff}},
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Color{Color: color.RGBA{0x00, 0x93, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x00, 0xdd, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0xdd, 0x49, 0xff}},
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Color{Color: color.RGBA{0x00, 0xdd, 0x93, 0xff}},
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Color{Color: color.RGBA{0x00, 0xee, 0x9e, 0xff}},
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Color{Color: color.RGBA{0x00, 0xee, 0xee, 0xff}},
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Color{Color: color.RGBA{0x22, 0x22, 0x22, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0x66, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0xee, 0xff}},
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Color{Color: color.RGBA{0x00, 0x66, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0x66, 0x66, 0xff}},
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Color{Color: color.RGBA{0x00, 0x55, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x00, 0x4f, 0xee, 0xff}},
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Color{Color: color.RGBA{0x00, 0xaa, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0xaa, 0x55, 0xff}},
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Color{Color: color.RGBA{0x00, 0xaa, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x00, 0x9e, 0xee, 0xff}},
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Color{Color: color.RGBA{0x00, 0xee, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0xee, 0x4f, 0xff}},
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Color{Color: color.RGBA{0x00, 0xff, 0x55, 0xff}},
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Color{Color: color.RGBA{0x00, 0xff, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x00, 0xff, 0xff, 0xff}},
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Color{Color: color.RGBA{0x33, 0x33, 0x33, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0x77, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0xbb, 0xff}},
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Color{Color: color.RGBA{0x00, 0x00, 0xff, 0xff}},
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Color{Color: color.RGBA{0x00, 0x77, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0x77, 0x77, 0xff}},
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Color{Color: color.RGBA{0x00, 0x5d, 0xbb, 0xff}},
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Color{Color: color.RGBA{0x00, 0x55, 0xff, 0xff}},
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Color{Color: color.RGBA{0x00, 0xbb, 0x00, 0xff}},
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Color{Color: color.RGBA{0x00, 0xbb, 0x5d, 0xff}},
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Color{Color: color.RGBA{0x00, 0xbb, 0xbb, 0xff}},
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Color{Color: color.RGBA{0x00, 0xaa, 0xff, 0xff}},
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Color{Color: color.RGBA{0x00, 0xff, 0x00, 0xff}},
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Color{Color: color.RGBA{0x44, 0x00, 0x44, 0xff}},
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Color{Color: color.RGBA{0x44, 0x00, 0x88, 0xff}},
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Color{Color: color.RGBA{0x44, 0x00, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x44, 0x44, 0x00, 0xff}},
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Color{Color: color.RGBA{0x44, 0x44, 0x44, 0xff}},
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Color{Color: color.RGBA{0x44, 0x44, 0x88, 0xff}},
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Color{Color: color.RGBA{0x44, 0x44, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x44, 0x88, 0x00, 0xff}},
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Color{Color: color.RGBA{0x44, 0x88, 0x44, 0xff}},
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Color{Color: color.RGBA{0x44, 0x88, 0x88, 0xff}},
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Color{Color: color.RGBA{0x44, 0x88, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x44, 0xcc, 0x00, 0xff}},
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Color{Color: color.RGBA{0x44, 0xcc, 0x44, 0xff}},
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Color{Color: color.RGBA{0x44, 0xcc, 0x88, 0xff}},
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Color{Color: color.RGBA{0x44, 0xcc, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x44, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0x55, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0x55, 0x00, 0x55, 0xff}},
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Color{Color: color.RGBA{0x4c, 0x00, 0x99, 0xff}},
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Color{Color: color.RGBA{0x49, 0x00, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x55, 0x55, 0x00, 0xff}},
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Color{Color: color.RGBA{0x55, 0x55, 0x55, 0xff}},
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Color{Color: color.RGBA{0x4c, 0x4c, 0x99, 0xff}},
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Color{Color: color.RGBA{0x49, 0x49, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x4c, 0x99, 0x00, 0xff}},
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Color{Color: color.RGBA{0x4c, 0x99, 0x4c, 0xff}},
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Color{Color: color.RGBA{0x4c, 0x99, 0x99, 0xff}},
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Color{Color: color.RGBA{0x49, 0x93, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x49, 0xdd, 0x00, 0xff}},
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Color{Color: color.RGBA{0x49, 0xdd, 0x49, 0xff}},
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Color{Color: color.RGBA{0x49, 0xdd, 0x93, 0xff}},
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Color{Color: color.RGBA{0x49, 0xdd, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x4f, 0xee, 0xee, 0xff}},
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Color{Color: color.RGBA{0x66, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0x66, 0x00, 0x66, 0xff}},
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Color{Color: color.RGBA{0x55, 0x00, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x4f, 0x00, 0xee, 0xff}},
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Color{Color: color.RGBA{0x66, 0x66, 0x00, 0xff}},
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Color{Color: color.RGBA{0x66, 0x66, 0x66, 0xff}},
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Color{Color: color.RGBA{0x55, 0x55, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x4f, 0x4f, 0xee, 0xff}},
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Color{Color: color.RGBA{0x55, 0xaa, 0x00, 0xff}},
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Color{Color: color.RGBA{0x55, 0xaa, 0x55, 0xff}},
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Color{Color: color.RGBA{0x55, 0xaa, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x4f, 0x9e, 0xee, 0xff}},
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Color{Color: color.RGBA{0x4f, 0xee, 0x00, 0xff}},
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Color{Color: color.RGBA{0x4f, 0xee, 0x4f, 0xff}},
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Color{Color: color.RGBA{0x4f, 0xee, 0x9e, 0xff}},
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Color{Color: color.RGBA{0x55, 0xff, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x55, 0xff, 0xff, 0xff}},
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Color{Color: color.RGBA{0x77, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0x77, 0x00, 0x77, 0xff}},
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Color{Color: color.RGBA{0x5d, 0x00, 0xbb, 0xff}},
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Color{Color: color.RGBA{0x55, 0x00, 0xff, 0xff}},
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Color{Color: color.RGBA{0x77, 0x77, 0x00, 0xff}},
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Color{Color: color.RGBA{0x77, 0x77, 0x77, 0xff}},
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Color{Color: color.RGBA{0x5d, 0x5d, 0xbb, 0xff}},
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Color{Color: color.RGBA{0x55, 0x55, 0xff, 0xff}},
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Color{Color: color.RGBA{0x5d, 0xbb, 0x00, 0xff}},
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Color{Color: color.RGBA{0x5d, 0xbb, 0x5d, 0xff}},
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Color{Color: color.RGBA{0x5d, 0xbb, 0xbb, 0xff}},
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Color{Color: color.RGBA{0x55, 0xaa, 0xff, 0xff}},
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Color{Color: color.RGBA{0x55, 0xff, 0x00, 0xff}},
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Color{Color: color.RGBA{0x55, 0xff, 0x55, 0xff}},
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Color{Color: color.RGBA{0x88, 0x00, 0x88, 0xff}},
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Color{Color: color.RGBA{0x88, 0x00, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x88, 0x44, 0x00, 0xff}},
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Color{Color: color.RGBA{0x88, 0x44, 0x44, 0xff}},
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Color{Color: color.RGBA{0x88, 0x44, 0x88, 0xff}},
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Color{Color: color.RGBA{0x88, 0x44, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x88, 0x88, 0x00, 0xff}},
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Color{Color: color.RGBA{0x88, 0x88, 0x44, 0xff}},
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Color{Color: color.RGBA{0x88, 0x88, 0x88, 0xff}},
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Color{Color: color.RGBA{0x88, 0x88, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x88, 0xcc, 0x00, 0xff}},
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Color{Color: color.RGBA{0x88, 0xcc, 0x44, 0xff}},
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Color{Color: color.RGBA{0x88, 0xcc, 0x88, 0xff}},
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Color{Color: color.RGBA{0x88, 0xcc, 0xcc, 0xff}},
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Color{Color: color.RGBA{0x88, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0x88, 0x00, 0x44, 0xff}},
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Color{Color: color.RGBA{0x99, 0x00, 0x4c, 0xff}},
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Color{Color: color.RGBA{0x99, 0x00, 0x99, 0xff}},
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Color{Color: color.RGBA{0x93, 0x00, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x99, 0x4c, 0x00, 0xff}},
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Color{Color: color.RGBA{0x99, 0x4c, 0x4c, 0xff}},
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Color{Color: color.RGBA{0x99, 0x4c, 0x99, 0xff}},
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Color{Color: color.RGBA{0x93, 0x49, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x99, 0x99, 0x00, 0xff}},
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Color{Color: color.RGBA{0x99, 0x99, 0x4c, 0xff}},
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Color{Color: color.RGBA{0x99, 0x99, 0x99, 0xff}},
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Color{Color: color.RGBA{0x93, 0x93, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x93, 0xdd, 0x00, 0xff}},
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Color{Color: color.RGBA{0x93, 0xdd, 0x49, 0xff}},
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Color{Color: color.RGBA{0x93, 0xdd, 0x93, 0xff}},
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Color{Color: color.RGBA{0x93, 0xdd, 0xdd, 0xff}},
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Color{Color: color.RGBA{0x99, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0xaa, 0x00, 0x00, 0xff}},
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Color{Color: color.RGBA{0xaa, 0x00, 0x55, 0xff}},
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Color{Color: color.RGBA{0xaa, 0x00, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x9e, 0x00, 0xee, 0xff}},
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Color{Color: color.RGBA{0xaa, 0x55, 0x00, 0xff}},
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Color{Color: color.RGBA{0xaa, 0x55, 0x55, 0xff}},
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Color{Color: color.RGBA{0xaa, 0x55, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x9e, 0x4f, 0xee, 0xff}},
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Color{Color: color.RGBA{0xaa, 0xaa, 0x00, 0xff}},
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Color{Color: color.RGBA{0xaa, 0xaa, 0x55, 0xff}},
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Color{Color: color.RGBA{0xaa, 0xaa, 0xaa, 0xff}},
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Color{Color: color.RGBA{0x9e, 0x9e, 0xee, 0xff}},
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Color{Color: color.RGBA{0x9e, 0xee, 0x00, 0xff}},
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Color{Color: color.RGBA{0x9e, 0xee, 0x4f, 0xff}},
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Color{Color: color.RGBA{0x9e, 0xee, 0x9e, 0xff}},
|
||||
Color{Color: color.RGBA{0x9e, 0xee, 0xee, 0xff}},
|
||||
Color{Color: color.RGBA{0xaa, 0xff, 0xff, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0x00, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0x00, 0x5d, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0x00, 0xbb, 0xff}},
|
||||
Color{Color: color.RGBA{0xaa, 0x00, 0xff, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0x5d, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0x5d, 0x5d, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0x5d, 0xbb, 0xff}},
|
||||
Color{Color: color.RGBA{0xaa, 0x55, 0xff, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0xbb, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0xbb, 0x5d, 0xff}},
|
||||
Color{Color: color.RGBA{0xbb, 0xbb, 0xbb, 0xff}},
|
||||
Color{Color: color.RGBA{0xaa, 0xaa, 0xff, 0xff}},
|
||||
Color{Color: color.RGBA{0xaa, 0xff, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xaa, 0xff, 0x55, 0xff}},
|
||||
Color{Color: color.RGBA{0xaa, 0xff, 0xaa, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x00, 0xcc, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x44, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x44, 0x44, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x44, 0x88, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x44, 0xcc, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x88, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x88, 0x44, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x88, 0x88, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x88, 0xcc, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0xcc, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0xcc, 0x44, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0xcc, 0x88, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0xcc, 0xcc, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x00, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x00, 0x44, 0xff}},
|
||||
Color{Color: color.RGBA{0xcc, 0x00, 0x88, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x00, 0x93, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x00, 0xdd, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x49, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x49, 0x49, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x49, 0x93, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x49, 0xdd, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x93, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x93, 0x49, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x93, 0x93, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x93, 0xdd, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0xdd, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0xdd, 0x49, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0xdd, 0x93, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0xdd, 0xdd, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x00, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xdd, 0x00, 0x49, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x00, 0x4f, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x00, 0x9e, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x00, 0xee, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x4f, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x4f, 0x4f, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x4f, 0x9e, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x4f, 0xee, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x9e, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x9e, 0x4f, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x9e, 0x9e, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x9e, 0xee, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0xee, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0xee, 0x4f, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0xee, 0x9e, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0xee, 0xee, 0xff}},
|
||||
Color{Color: color.RGBA{0xee, 0x00, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x00, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x00, 0x55, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x00, 0xaa, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x00, 0xff, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x55, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x55, 0x55, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x55, 0xaa, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0x55, 0xff, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xaa, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xaa, 0x55, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xaa, 0xaa, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xaa, 0xff, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xff, 0x00, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xff, 0x55, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xff, 0xaa, 0xff}},
|
||||
Color{Color: color.RGBA{0xff, 0xff, 0xff, 0xff}},
|
||||
}},
|
||||
}
|
||||
|
|
@ -0,0 +1,211 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"image"
|
||||
"image/color"
|
||||
"image/png"
|
||||
"math"
|
||||
"os"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
var (
|
||||
colorPalette string
|
||||
colorStep float64
|
||||
xpos, ypos float64
|
||||
width, height int
|
||||
imageSmoothness int
|
||||
maxIteration int
|
||||
escapeRadius float64
|
||||
outputFile string
|
||||
)
|
||||
|
||||
var waitGroup sync.WaitGroup
|
||||
|
||||
func init() {
|
||||
flag.Float64Var(&colorStep, "step", 12000, "Color smooth step. Value should be greater than iteration count, otherwise the value will be adjusted to the iteration count.")
|
||||
flag.IntVar(&width, "width", 480, "Rendered image width")
|
||||
flag.IntVar(&height, "height", 270, "Rendered image height")
|
||||
flag.Float64Var(&xpos, "xpos", -0.00275, "Point position on the real axis (defined on `x` axis)")
|
||||
flag.Float64Var(&ypos, "ypos", 0.78912, "Point position on the imaginary axis (defined on `y` axis)")
|
||||
flag.Float64Var(&escapeRadius, "radius", .125689, "Escape Radius")
|
||||
flag.IntVar(&maxIteration, "iteration", 2400, "Iteration count")
|
||||
flag.IntVar(&imageSmoothness, "smoothness", 8, "The rendered mandelbrot set smoothness. For a more detailded and clear image use higher numbers. For 4xAA (AA = antialiasing) use -smoothness 4")
|
||||
flag.StringVar(&colorPalette, "palette", "Plan9", "Hippi | Plan9 | AfternoonBlue | SummerBeach | Biochimist | Fiesta")
|
||||
flag.StringVar(&outputFile, "file", "mandelbrot.png", "The rendered mandelbrot image filname")
|
||||
flag.Parse()
|
||||
}
|
||||
|
||||
func main() {
|
||||
done := make(chan struct{})
|
||||
ticker := time.NewTicker(time.Millisecond * 100)
|
||||
|
||||
go func() {
|
||||
for {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
fmt.Print(".")
|
||||
case <-done:
|
||||
ticker.Stop()
|
||||
fmt.Printf("\n\nMandelbrot set rendered into `%s`\n", outputFile)
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
if colorStep < float64(maxIteration) {
|
||||
colorStep = float64(maxIteration)
|
||||
}
|
||||
colors := interpolateColors(&colorPalette, colorStep)
|
||||
|
||||
if len(colors) > 0 {
|
||||
fmt.Print("Rendering image...")
|
||||
render(maxIteration, colors, done)
|
||||
}
|
||||
time.Sleep(time.Second)
|
||||
}
|
||||
|
||||
func interpolateColors(paletteCode *string, numberOfColors float64) []color.RGBA {
|
||||
var factor float64
|
||||
steps := []float64{}
|
||||
cols := []uint32{}
|
||||
interpolated := []uint32{}
|
||||
interpolatedColors := []color.RGBA{}
|
||||
|
||||
for _, v := range ColorPalettes {
|
||||
factor = 1.0 / numberOfColors
|
||||
switch v.Keyword {
|
||||
case *paletteCode:
|
||||
if paletteCode != nil {
|
||||
for index, col := range v.Colors {
|
||||
if col.Step == 0.0 && index != 0 {
|
||||
stepRatio := float64(index+1) / float64(len(v.Colors))
|
||||
step := float64(int(stepRatio*100)) / 100 // truncate to 2 decimal precision
|
||||
steps = append(steps, step)
|
||||
} else {
|
||||
steps = append(steps, col.Step)
|
||||
}
|
||||
r, g, b, a := col.Color.RGBA()
|
||||
r /= 0xff
|
||||
g /= 0xff
|
||||
b /= 0xff
|
||||
a /= 0xff
|
||||
uintColor := uint32(r)<<24 | uint32(g)<<16 | uint32(b)<<8 | uint32(a)
|
||||
cols = append(cols, uintColor)
|
||||
}
|
||||
|
||||
var min, max, minColor, maxColor float64
|
||||
if len(v.Colors) == len(steps) && len(v.Colors) == len(cols) {
|
||||
for i := 0.0; i <= 1; i += factor {
|
||||
for j := 0; j < len(v.Colors)-1; j++ {
|
||||
if i >= steps[j] && i < steps[j+1] {
|
||||
min = steps[j]
|
||||
max = steps[j+1]
|
||||
minColor = float64(cols[j])
|
||||
maxColor = float64(cols[j+1])
|
||||
uintColor := cosineInterpolation(maxColor, minColor, (i-min)/(max-min))
|
||||
interpolated = append(interpolated, uint32(uintColor))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for _, pixelValue := range interpolated {
|
||||
r := pixelValue >> 24 & 0xff
|
||||
g := pixelValue >> 16 & 0xff
|
||||
b := pixelValue >> 8 & 0xff
|
||||
a := 0xff
|
||||
|
||||
interpolatedColors = append(interpolatedColors, color.RGBA{uint8(r), uint8(g), uint8(b), uint8(a)})
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return interpolatedColors
|
||||
}
|
||||
|
||||
func render(maxIteration int, colors []color.RGBA, done chan struct{}) {
|
||||
width = width * imageSmoothness
|
||||
height = height * imageSmoothness
|
||||
ratio := float64(height) / float64(width)
|
||||
xmin, xmax := xpos-escapeRadius/2.0, math.Abs(xpos+escapeRadius/2.0)
|
||||
ymin, ymax := ypos-escapeRadius*ratio/2.0, math.Abs(ypos+escapeRadius*ratio/2.0)
|
||||
|
||||
image := image.NewRGBA(image.Rectangle{image.Point{0, 0}, image.Point{width, height}})
|
||||
|
||||
for iy := 0; iy < height; iy++ {
|
||||
waitGroup.Add(1)
|
||||
go func(iy int) {
|
||||
defer waitGroup.Done()
|
||||
|
||||
for ix := 0; ix < width; ix++ {
|
||||
var x = xmin + (xmax-xmin)*float64(ix)/float64(width-1)
|
||||
var y = ymin + (ymax-ymin)*float64(iy)/float64(height-1)
|
||||
norm, it := mandelIteration(x, y, maxIteration)
|
||||
iteration := float64(maxIteration-it) + math.Log(norm)
|
||||
|
||||
if int(math.Abs(iteration)) < len(colors)-1 {
|
||||
color1 := colors[int(math.Abs(iteration))]
|
||||
color2 := colors[int(math.Abs(iteration))+1]
|
||||
color := linearInterpolation(rgbaToUint(color1), rgbaToUint(color2), uint32(iteration))
|
||||
|
||||
image.Set(ix, iy, uint32ToRgba(color))
|
||||
}
|
||||
}
|
||||
}(iy)
|
||||
}
|
||||
|
||||
waitGroup.Wait()
|
||||
|
||||
output, _ := os.Create(outputFile)
|
||||
png.Encode(output, image)
|
||||
|
||||
done <- struct{}{}
|
||||
}
|
||||
|
||||
func cosineInterpolation(c1, c2, mu float64) float64 {
|
||||
mu2 := (1 - math.Cos(mu*math.Pi)) / 2.0
|
||||
return c1*(1-mu2) + c2*mu2
|
||||
}
|
||||
|
||||
func linearInterpolation(c1, c2, mu uint32) uint32 {
|
||||
return c1*(1-mu) + c2*mu
|
||||
}
|
||||
|
||||
func mandelIteration(cx, cy float64, maxIter int) (float64, int) {
|
||||
var x, y, xx, yy float64 = 0.0, 0.0, 0.0, 0.0
|
||||
|
||||
for i := 0; i < maxIter; i++ {
|
||||
xy := x * y
|
||||
xx = x * x
|
||||
yy = y * y
|
||||
if xx+yy > 4 {
|
||||
return xx + yy, i
|
||||
}
|
||||
x = xx - yy + cx
|
||||
y = 2*xy + cy
|
||||
}
|
||||
|
||||
logZn := (x*x + y*y) / 2
|
||||
return logZn, maxIter
|
||||
}
|
||||
|
||||
func rgbaToUint(color color.RGBA) uint32 {
|
||||
r, g, b, a := color.RGBA()
|
||||
r /= 0xff
|
||||
g /= 0xff
|
||||
b /= 0xff
|
||||
a /= 0xff
|
||||
return uint32(r)<<24 | uint32(g)<<16 | uint32(b)<<8 | uint32(a)
|
||||
}
|
||||
|
||||
func uint32ToRgba(col uint32) color.RGBA {
|
||||
r := col >> 24 & 0xff
|
||||
g := col >> 16 & 0xff
|
||||
b := col >> 8 & 0xff
|
||||
a := 0xff
|
||||
return color.RGBA{uint8(r), uint8(g), uint8(b), uint8(a)}
|
||||
}
|
||||
Loading…
Reference in New Issue