plotboilerplate
Version:
A simple javascript plotting boilerplate for 2d stuff.
26 lines • 964 B
JavaScript
;
/**
* @author Original from Martin Sojka. Ported to TypesScript by Ikaros Kappler
* @date 2020-11-10
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.getContrastColor = void 0;
var Color_1 = require("../datastructures/Color");
var BLACK = Color_1.Color.makeRGB(0, 0, 0);
var WHITE = Color_1.Color.makeRGB(255, 255, 255);
/**
* Contrast color algorithm by Martin Sojka's.
* Found at
* https://gamedev.stackexchange.com/questions/38536/given-a-rgb-color-x-how-to-find-the-most-contrasting-color-y/38542#38542
*
* @requires Color
*/
var getContrastColor = function (color) {
// r,g,b in [0..1]
var gamma = 2.2;
var L = 0.2126 * Math.pow(color.r, gamma) + 0.7152 * Math.pow(color.g, gamma) + 0.0722 * Math.pow(color.b, gamma);
var use_black = L > Math.pow(0.5, gamma);
return use_black ? BLACK : WHITE;
};
exports.getContrastColor = getContrastColor;
//# sourceMappingURL=getContrastColor.js.map