Quick and easy linear color mappings
The node module color is a better module for most things. Building out linear luminosity increases and decreases was needed for my project so I wrote this thing. If you have a central color or end point colors and want a color map array which linearly increases or decreases away from it, this is a helpful module. It also does't care if you chuck in rgb or hex, it just spits out whatever you put in. For example:
var cg = require'./colorgrad'var cops ="lum": -1"nshades": 10"type": "linear"var cglwr = cgcolorgrad'#0000FF' '#FFFFFF'copsvar cgupr = cgcolorgrad'#FFFFFF' '#FF0000'copscglwrpop // pop off centre duplicatevar c = cglwrconcatcguprconsole.logc
[ '#0000ff','#1c1cff','#3939ff','#5555ff','#7171ff','#8e8eff','#aaaaff','#c6c6ff','#e3e3ff','#ffffff','#ffe3e3','#ffc6c6','#ffaaaa','#ff8e8e','#ff7171','#ff5555','#ff3939','#ff1c1c','#ff0000' ]
Right now the only style of progression is linear, though I would like to implement exponential and square root.
The defaults are
nshades = 100,
type = linear,
lum = 1.
lum option sets the percentage total luminosity increase. The luminosity step size is lum / number of steps. For rgb input it would look like:
var ops ="lum": 10"nshades": 10var cga = cgcolorgrad101010 opsconsole.logcga
[ [ 10, 10, 10 ],[ 21, 21, 21 ],[ 32, 32, 32 ],[ 43, 43, 43 ],[ 54, 54, 54 ],[ 66, 66, 66 ],[ 77, 77, 77 ],[ 88, 88, 88 ],[ 99, 99, 99 ],[ 110, 110, 110 ] ]
$ npm install colorgrad
You can put colorgrad in the browser using browserify