色轮背后的算法是什么？ [英] What is the Algorithm behind a color wheel?

问题描述

我想在我的iPhone应用程序上绘制一个色轮，该怎么做？

I would like to draw a color wheel on my iPhone Application, how can I do so?

色轮背后的算法是什么？谢谢。

What is the Algorithm behind the color wheel? Thank you.

推荐答案

如果您熟悉HSA色彩系统，该算法将非常简单。

If you are familiar with HSA color system the algorithm will be simple.

色轮表示色相和饱和度。色调随角度变化，而饱和度随半径变化。有关更多信息，请访问 http://www.stackoverflow.com/questions / 4235072 /色轮后面的数学

A color wheel depicts Hue and Saturation. The hue varies with the angle, and the saturation varies with the radius. For more information you can take a look at http://www.stackoverflow.com/questions/4235072/math-behind-the-colour-wheel

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