Complete build of hex color scales

Makefile

@@ -0,0 +1,10 @@
+TRIPLET_DATA = $(wildcard triplet-data/*.json)
+HEX_DATA = $(addprefix hex-data/,$(notdir $(TRIPLET_DATA)))
+
+all: $(HEX_DATA)
+
+hex-data:
+	mkdir -p hex-data
+
+hex-data/%.json: triplet-data/%.json hex-data
+	node build $(abspath $<) > $@

README.md

@@ -19,8 +19,9 @@ Development
 -----------
 
 [`triplet-data/`](triplet-data/) contains raw JSON exports of the pixel triplets
-from [bids/colormap][1] which are the default color scales in matplotlib 2.0.
-The pixel triplets were obtained from [bids/colormap#84cb377][2].
+from [`bids/colormap`][1] which are the default color scales in matplotlib 2.0.
+The pixel triplets were obtained from [`bids/colormap#84cb377`][2]. To build the
+corresponding [`hex-data/`](hex-data/) files, run `make`.
 
 License
 -------

build.js

@@ -0,0 +1,12 @@
+'use strict'
+
+const rgb2hex = require('./utils/rgb2hex')
+
+const hexScale = require(process.argv[2]).map(tuple => ({
+  r: tuple[0],
+  g: tuple[1],
+  b: tuple[2]
+}))
+.map(rgb2hex)
+
+process.stdout.write(JSON.stringify(hexScale))

hex-data/inferno.json

@@ -0,0 +1 @@
+["#000004","#010005","#010106","#010108","#02010a","#02020c","#02020e","#030210","#040312","#040314","#050417","#060419","#07051b","#08051d","#09061f","#0a0722","#0b0724","#0c0826","#0d0829","#0e092b","#10092d","#110a30","#120a32","#140b34","#150b37","#160b39","#180c3c","#190c3e","#1b0c41","#1c0c43","#1e0c45","#1f0c48","#210c4a","#230c4c","#240c4f","#260c51","#280b53","#290b55","#2b0b57","#2d0b59","#2f0a5b","#310a5c","#320a5e","#340a5f","#360961","#380962","#390963","#3b0964","#3d0965","#3e0966","#400a67","#420a68","#440a68","#450a69","#470b6a","#490b6a","#4a0c6b","#4c0c6b","#4d0d6c","#4f0d6c","#510e6c","#520e6d","#540f6d","#550f6d","#57106e","#59106e","#5a116e","#5c126e","#5d126e","#5f136e","#61136e","#62146e","#64156e","#65156e","#67166e","#69166e","#6a176e","#6c186e","#6d186e","#6f196e","#71196e","#721a6e","#741a6e","#751b6e","#771c6d","#781c6d","#7a1d6d","#7c1d6d","#7d1e6d","#7f1e6c","#801f6c","#82206c","#84206b","#85216b","#87216b","#88226a","#8a226a","#8c2369","#8d2369","#8f2469","#902568","#922568","#932667","#952667","#972766","#982766","#9a2865","#9b2964","#9d2964","#9f2a63","#a02a63","#a22b62","#a32c61","#a52c60","#a62d60","#a82e5f","#a92e5e","#ab2f5e","#ad305d","#ae305c","#b0315b","#b1325a","#b3325a","#b43359","#b63458","#b73557","#b93556","#ba3655","#bc3754","#bd3853","#bf3952","#c03a51","#c13a50","#c33b4f","#c43c4e","#c63d4d","#c73e4c","#c83f4b","#ca404a","#cb4149","#cc4248","#ce4347","#cf4446","#d04545","#d24644","#d34743","#d44842","#d54a41","#d74b3f","#d84c3e","#d94d3d","#da4e3c","#db503b","#dd513a","#de5238","#df5337","#e05536","#e15635","#e25734","#e35933","#e45a31","#e55c30","#e65d2f","#e75e2e","#e8602d","#e9612b","#ea632a","#eb6429","#eb6628","#ec6726","#ed6925","#ee6a24","#ef6c23","#ef6e21","#f06f20","#f1711f","#f1731d","#f2741c","#f3761b","#f37819","#f47918","#f57b17","#f57d15","#f67e14","#f68013","#f78212","#f78410","#f8850f","#f8870e","#f8890c","#f98b0b","#f98c0a","#f98e09","#fa9008","#fa9207","#fa9407","#fb9606","#fb9706","#fb9906","#fb9b06","#fb9d07","#fc9f07","#fca108","#fca309","#fca50a","#fca60c","#fca80d","#fcaa0f","#fcac11","#fcae12","#fcb014","#fcb216","#fcb418","#fbb61a","#fbb81d","#fbba1f","#fbbc21","#fbbe23","#fac026","#fac228","#fac42a","#fac62d","#f9c72f","#f9c932","#f9cb35","#f8cd37","#f8cf3a","#f7d13d","#f7d340","#f6d543","#f6d746","#f5d949","#f5db4c","#f4dd4f","#f4df53","#f4e156","#f3e35a","#f3e55d","#f2e661","#f2e865","#f2ea69","#f1ec6d","#f1ed71","#f1ef75","#f1f179","#f2f27d","#f2f482","#f3f586","#f3f68a","#f4f88e","#f5f992","#f6fa96","#f8fb9a","#f9fc9d","#fafda1","#fcffa4"]

hex-data/magma.json

@@ -0,0 +1 @@
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hex-data/plasma.json

@@ -0,0 +1 @@
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hex-data/viridis.json

@@ -0,0 +1 @@
+["#440154","#440256","#450457","#450559","#46075a","#46085c","#460a5d","#460b5e","#470d60","#470e61","#471063","#471164","#471365","#481467","#481668","#481769","#48186a","#481a6c","#481b6d","#481c6e","#481d6f","#481f70","#482071","#482173","#482374","#482475","#482576","#482677","#482878","#482979","#472a7a","#472c7a","#472d7b","#472e7c","#472f7d","#46307e","#46327e","#46337f","#463480","#453581","#453781","#453882","#443983","#443a83","#443b84","#433d84","#433e85","#423f85","#424086","#424186","#414287","#414487","#404588","#404688","#3f4788","#3f4889","#3e4989","#3e4a89","#3e4c8a","#3d4d8a","#3d4e8a","#3c4f8a","#3c508b","#3b518b","#3b528b","#3a538b","#3a548c","#39558c","#39568c","#38588c","#38598c","#375a8c","#375b8d","#365c8d","#365d8d","#355e8d","#355f8d","#34608d","#34618d","#33628d","#33638d","#32648e","#32658e","#31668e","#31678e","#31688e","#30698e","#306a8e","#2f6b8e","#2f6c8e","#2e6d8e","#2e6e8e","#2e6f8e","#2d708e","#2d718e","#2c718e","#2c728e","#2c738e","#2b748e","#2b758e","#2a768e","#2a778e","#2a788e","#29798e","#297a8e","#297b8e","#287c8e","#287d8e","#277e8e","#277f8e","#27808e","#26818e","#26828e","#26828e","#25838e","#25848e","#25858e","#24868e","#24878e","#23888e","#23898e","#238a8d","#228b8d","#228c8d","#228d8d","#218e8d","#218f8d","#21908d","#21918c","#20928c","#20928c","#20938c","#1f948c","#1f958b","#1f968b","#1f978b","#1f988b","#1f998a","#1f9a8a","#1e9b8a","#1e9c89","#1e9d89","#1f9e89","#1f9f88","#1fa088","#1fa188","#1fa187","#1fa287","#20a386","#20a486","#21a585","#21a685","#22a785","#22a884","#23a983","#24aa83","#25ab82","#25ac82","#26ad81","#27ad81","#28ae80","#29af7f","#2ab07f","#2cb17e","#2db27d","#2eb37c","#2fb47c","#31b57b","#32b67a","#34b679","#35b779","#37b878","#38b977","#3aba76","#3bbb75","#3dbc74","#3fbc73","#40bd72","#42be71","#44bf70","#46c06f","#48c16e","#4ac16d","#4cc26c","#4ec36b","#50c46a","#52c569","#54c568","#56c667","#58c765","#5ac864","#5cc863","#5ec962","#60ca60","#63cb5f","#65cb5e","#67cc5c","#69cd5b","#6ccd5a","#6ece58","#70cf57","#73d056","#75d054","#77d153","#7ad151","#7cd250","#7fd34e","#81d34d","#84d44b","#86d549","#89d548","#8bd646","#8ed645","#90d743","#93d741","#95d840","#98d83e","#9bd93c","#9dd93b","#a0da39","#a2da37","#a5db36","#a8db34","#aadc32","#addc30","#b0dd2f","#b2dd2d","#b5de2b","#b8de29","#bade28","#bddf26","#c0df25","#c2df23","#c5e021","#c8e020","#cae11f","#cde11d","#d0e11c","#d2e21b","#d5e21a","#d8e219","#dae319","#dde318","#dfe318","#e2e418","#e5e419","#e7e419","#eae51a","#ece51b","#efe51c","#f1e51d","#f4e61e","#f6e620","#f8e621","#fbe723","#fde725"]

utils/hex2rgb.js

@@ -0,0 +1,10 @@
+'use strict'
+
+module.exports = function hex2rgb (hex) {
+  return {
+    // skip # at position 0
+    r: parseInt(hex.slice(1, 3), 16) / 255,
+    g: parseInt(hex.slice(3, 5), 16) / 255,
+    b: parseInt(hex.slice(5, 7), 16) / 255
+  }
+}