Comments (3)
Wow, CSS will include lab and lch color spaces! Nice of them to include detailed descriptions and reference implementations. Changing d3-color to match the specification would be great.
from d3-color.
Fixed in #46.
from d3-color.
The current CSS specification for Lab / LCH leaves some legroom to the choice of matrices / precision when transforming sRGB to Lab, but the intent is to have the Lab be relative to the standard D50 white point. In the pull request above, I'm skipping some intermediary steps from the reference implementation and using a single matrix for linear RGB ↔ XYZD50 from the same web page they cite in their code.
The output closely matches Matlab's rgb2lab
and lab2rgb
fucntions, so I think this may be a wrap until the CSS Color Module Level 4 spec gets fleshed out :)
from d3-color.
Related Issues (20)
- d3.rgb doesn't parse HSL hues with `deg` units HOT 1
- Changing color.s changes luminosity and color.l saturation.
- Security vulnerability fix for d3-color required in version 2.x HOT 7
- Security vulnerability fix for d3-color nice-to-have in version 1.x HOT 4
- Unexpected token 'export' while update from 2.x.x to 3.x.x HOT 2
- Why d3 uses illuminant D50 instead of D65? HOT 1
- d3.hsl doesnt seem to work with grey scale values HOT 2
- Alpha value of 0 breaks rgb HOT 1
- Add formatHex8() to include opacity HOT 7
- Brightening black in RGB HOT 3
- bug: hue is NaN when convert hsl HOT 2
- Unexpected conversion to HSL
- Incorrect conversion from HCL / LCH to hex or rgb HOT 2
- oklab / oklch? HOT 8
- More exports. HOT 9
- Doesn't work - color is not defined HOT 1
- Does the Common JS version of the module work? HOT 1
- Supporting CSS color level 4 HOT 3
- Avoid catastrophic backtracking when parsing HOT 11
- formatHex with alpha channel HOT 1
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from d3-color.