Comments (7)
@TrieBr This is the behaviour of d3.interpolateHsl
. To quote d3
-
Returns an HSL color space interpolator between the two colors a and b. The colors a and b need not be in HSL; they will be converted to HSL using d3.hsl.
I agree it is confusing. I will try to accomodate all the d3 interpolators - hcl
, hsl
, rgb
etc so that users can select the interpolator of their choice, in upcoming versions.
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Hi @TrieBr. Start and end color are not discrete colors to be swapped. They form the start and end of all the intermediate gradient colors. Internally, the colors are interpolated from start color to end color. For example, if you draw 1000 segments with start color as pink
and end color as yellow
, you will see a very fine grained scale gradually starting with start color and ending with end color. Internally, it uses d3 interpolate - https://github.com/d3/d3-interpolate#interpolate.
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@palerdot Can you please further explain. You explained that the color will start at pink
and then end at yellow
. So I would expect if I swapped them then it would start at yellow
and end at pink
. But in this case its starting at yellow+1 shade
to pink+1 shade
from react-d3-speedometer.
can you tell what you mean by yellow + 1
shade? do you have the color code and some kind of fiddle to show the shades you are describing?
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Look at the screenshots. The first speedometer starts on a darker shade of green than the rightmost green on the second speedometer . Same with the other color. The first one ends one shade lighter (It doesn't include the dark red you see on the second one). It seems to me that if I use exactly opposite color ranges, then the speedometer's should have exactly the opposite color range, but that is not the case.
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@TrieBr I could reproduce the issue you are mentioning. I'm reopening this to inspect if this is the behaviour of d3.interpolateHSL
and update this issue.
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@TrieBr There is a new option available in 0.6.0
version with segmentColors
option/prop, with which we can give custom segment colors. This option gives more control over segment colors. Here is a sample sandbox - https://codesandbox.io/embed/relaxed-silence-c3qkb
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